Gratitude
In appreciation and gratitude
to The Custodian of the Two Holy Mosques
King Abdullah Bin Abdul Aziz Al Saud
And
H.R.H. Prince Sultan Bin Abdul Aziz Al Saud
Crown Prince, Deputy Premier, Minister of Defence
& Aviation and Inspector General
For their continuous support and gracious consideration,
the Saudi Building Code National Committee (SBCNC)
is honored to present the first issue of
the Saudi Building Code (SBC).
Saudi Building Code Requirements
201
301
302
303
304
305
306
401
501
Architectural
Structural – Loading and Forces
Structural – Testing and Inspection
Structural – Soil and Foundations
Structural – Concrete Structures
Structural – Masonry Structures
Structural – Steel Structures
Electrical
Mechanical
601
701
Energy Conservation
901
Existing Buildings
801
SBC 801
Sanitary
Fire Protection
2007
PREFACE
PREFACE
The Saudi Building Code (SBC) is a set of legal, administrative and technical
regulations and requirements that specify the minimum standards of construction for building
in order to ensure public safety and health. A Royal Decree dated 11th June 2000 order the
formation of a national committee composed of representatives of Saudi universities and
governmental and private sectors. In September 2001, the Council of Ministers approved the
general plan of the National Committee to develop a national building code for the Kingdom
of Saudi Arabia.
To choose a base code for the Saudi Building Code, a number of Codes have been
studied. The National Committee has been acquainted with the results of the national
researches and the international codes from the U.S.A., Canada and Australia, also, the
European Code, and Arab Codes. It has also sought the opinions of specialists in relevant
Saudi universities, governmental and private sectors through holding a questionnaire, a
symposium and specialized workshops, in the light of which, (ICC) has been chosen to be a
base code for the Saudi Building Code.
The International Code Council (ICC) grants permission to the Saudi Building Code
National Committee (SBCNC) to include all or any portion of material from the ICC codes,
and standards in the SBC and ICC is not responsible or liable in any way to SBCNC or to any
other party or entity for any modifications or changes that SBCNC makes to such documents.
Toward expanding the participation of all the specialists in the building and
construction industry in the Kingdom through the governmental and private sectors, the
universities and research centers, the National Committee took its own decisions related to
code content by holding specialized meetings, symposiums and workshops and by the help of
experts from inside and outside of Saudi Arabia.
The technical committees and sub-committees started their work in April 2003 to
develop the Saudi Building Code that adapts the base code with the social and cultural
environment, the natural and climatic conditions, types of soil and properties of materials in
the Kingdom.
The Saudi Building Code Fire Protection Requirements (SBC 801) was based on the
International Fire Code (IFC) 2003 edition, beside the materials published by the National
Fire Protection Association (NFPA). NFPA allow the Saudi Building Code National
committee (SBCNC) to utilize (NFPA) codes and standards as reference documents in part or
in full.
The development process of SBC 801 followed the methodology approved by the
Saudi Building Code National Committee. Many changes and modifications were made on
the base code and only SI units were used throughout the Code. The changes were intended
to compose a comprehensive set of provisions, to the best possible extent, for materials,
environmental conditions, and construction practices prevailing in the Kingdom.
SBC 801
2007
Preface / 1
NATIONAL COMMITTEE
The Saudi Building Code National Committee
Mohammad H. Al-Nagadi, MSc.
Chairman
Mohammad S. Al-Haddad, PhD.
Vice Chairman
Nabil A. Molla, MSc.
Member
Khalid M. Qattan, PhD.
Member
Abdul-Ghani H. Al-Harbi, BSc.
Member
Ahmad A. Al-Yousef, BSc.
Member
Tamim A. Samman, PhD.
Member
Rajeh Z. Al-Zaid, PhD.
Member
Mustafa Y. Al-Mandil, PhD.
Member
Tariq M. Nahhas, PhD.
Member
Ali O. Al-Zaid, BSc.
Member
Ministry of Municipal and Rural Affairs
King Abdul-Aziz City for Science and Technology
Saudi Arabian Standards Organization
Ministry of Interior
Ministry of Transportation
Ministry of Water and Electricity
King Abdul-Aziz University
King Saud University
King Fahd University of Petroleum and Minerals
Umm Al-Qura University
Council of Saudi Chambers of Commerce and Industry
Former Members of the Saudi Building Code National Committee
Khalid Y. Al-Khalaf, PhD.
Saudi Arabian Standards Organization
Chairman
1423 up to 1426H
Abdul-Aziz A. Al-Abdul-Karim, BSc.
Member
Ahmad A. Al-Johdali, BSc.
Member
Ministry of Municipal and Rural Affairs
Ministry of Transportation
SBC 801
2007
National Committee/1
CONSULTATIVE COMMITTEE
The Consultative Committee
�
Ali O. Al-Zaid, BSc.
Member of the Saudi Building Code National Committee
Chairman
Rajeh Z. Al-Zaid, PhD.
Vice Chairman
Siraj M. Mas'oudi, MSc.
Member
Mustafa Y. Al-Mandil, PhD.
Member
Ali A. Shash, PhD.
Member
Abdul-Rahman A. Al-Tassan, PhD.
Member
Ahmad B. Al-Shuraim, PhD.
Member
Abdul-Hameed A. Al-Ohaly, PhD.
Member
Ala'uddin Shibl, PhD.
Member
Ibrahim S. Al-Jadhai, PhD.
Member
Abdullah I. Al-Boeis, BSc.
Member
Tariq A. Al-Khalifa, PhD.
Member
Member of the Saudi Building Code National Committee
Saudi Arabian Standards Organization
Member of the Saudi Building Code National Committee
Head of the Administrative and Legal Technical Committee
Head of the Architectural Technical Committee
Head of the Structural Technical Committee
Head of the Electrical Technical Committee
Head of the Mechanical Technical Committee
Head of the Sanitary Technical Committee
Head of the Fire Protection Technical Committee
Head of the Seismic Requirements Technical Committee
Secretariat General of the Saudi Building Code National Committee
Mohammad A. Bin-Hussien, PhD.
Former Secretary
Mohammed G. Al-Najrani, BSc.
Acting Secretary
Fuad A. Bukhari, Arch.
Coordinator
Former Secretary General
Acting Secretary General
Director of Technical Affairs – SBCNC
SBC 801
2007
Consultative Committee /1
TECHNICAL COMMITTEE
The Technical Committee for Fire Protection
�
Abdullah I. Al-Boiez, BSc.
Chairman
Gharman H. Shehri, BSc.
Member
Mohammed A. Al-Nahari, BSc. Colonel.
Member
Saad M. Al-Bishry, BSc. Captain.
Member
Sa’eed M. Al-Zahrani, PhD.
Member
Tawfik I. Al-Juraid, BSc.
Member
Sultan A. Al-Sultan, BSc.
Member
Mohammed A. Al-Amry, BSc.
Member
Fuad A. Bukhari, Arch.
Coordinator
King Abdul-Aziz City for Science and Technology
Supreme Commission of Industrial Safety and Security
General Administration of Civil Defence
General Administration of Civil Defence
King Saud University
Saudi Arabian Standards Organization
Saudi Aramco
Industrial Development Fund
Saudi Building Code National Committee
SBC 801
2007
Consultative Committee /1
CONTENTS
TABLE OF CONTENTS
DEFINITIONS
CHAPTER 1:
Section
1.1
General
1.2
General Definitions
CHAPTER 2:
Section
2A
2A.1
2A.2
2A.3
2A.4
2A.5
2A.6
2A.7
2A.8
2A.9
2A.10
2A.11
2A.12
2B
2B.1
2B.2
2B.3
2B.4
2B.5
2B.6
2B.7
2B.8
2B.9
2B.10
2B.11
2B.12
2B.13
2B.14
2B.15
2B.16
2B.17
2B.18
USE AND OCCUPANCY CLASSIFICATION AND SPECIAL
DETAILED REQUIREMENTS BASED ON USE AND
OCCUPANCY
Use and Occupancy Classification
General
Classification
Assembly Group A
Business Group B
Educational Group E
Factory Group F
High-Hazard Group H
Institutional Group I
Mercantile Group M
Residential Group R
Storage Group S
Utility and Miscellaneous Group U
Special Detailed Requirements Based on Use and Occupancy
Scope
Covered Mall Buildings
High-Rise Buildings
Atriums
Underground Buildings
Motor-Vehicle-Related Occupancies
Group I-2
Group I-3
Motion Picture Projection Rooms
Stages and Platforms
Special Amusement Buildings
Aircraft-Related Occupancies
Combustible Storage
Hazardous Materials
Groups H-1, H-2, H-3, H-4 and H-5
Application of Flammable Finishes
Drying Rooms
Organic Coatings
CHAPTER 3:
GENERAL BUILDING HEIGHTS AND AREAS
Section
3.1
General
3.2
Definitions
3.3
General Height and Area Limitations
3.4
Height Modifications
3.5
Mezzanines
SBC 801
2007
Contents/1
CONTENTS
3.6
3.7
3.8
CHAPTER 4:
Section
4A
4A.1
4A.2
4A.3
4B
4B.1
4B.2
4B.3
4B.4
4B.5
4B.6
4B.7
4B.8
4B.9
4B.10
4B.11
4B.12
4B.13
4B.14
4B.15
4B.16
4B.17
4B.18
4B.19
4B.20
4B.21
CHAPTER 5:
Section
5A
5A.1
5A.2
5A.3
5A.4
5A.5
5A.6
5A.7
5A.8
5A.9
5A.10
5A.11
5A.12
5A.13
SBC 801
Area Modifications
Unlimited Area Buildings
Special Provisions
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED
CONSTRUCTION
Types of Construction
General
Construction Classification
Combustible Materials in Types I and II Construction
Fire-Resistance-Rated Construction
General
Definitions
Fire-Resistance Ratings and Fire Tests
Exterior Walls
Fire Walls
Fire Barriers
Shaft Enclosures
Fire Partitions
Smoke Barriers
Smoke Partitions
Horizontal Assemblies
Penetrations
Fire-resistant Joint Systems
Fire-resistance Rating of Structural Members
Opening Protectives
Ducts and Air Transfer Openings
Concealed Spaces
Fire-resistance Requirements for Plaster
Thermal- and Sound-Insulating Materials
Prescriptive Fire Resistance
Calculated Fire Resistance
GENERAL PRECAUTIONS AGAINST FIRE, EMERGENCY
PLANNING AND PREPAREDNESS, FIRE SERVICE FEATURES
BUILDING SERVICES AND SYSTEMS
General Precautions Against Fire
General
Definitions
Asphalt Kettles
Combustible Waste Material
Ignition Sources
Motion Picture Film and Screens
Open Burning and Recreational Fires
Open Flames
Powered Industrial Trucks
Smoking
Vacant Premises
Vehicle Impact Protection
Fueled Equipment
2007
Contents/2
CONTENTS
5A.14
5A.15
5B
5B.1
5B.2
5B.3
5B.4
5B.5
5B.6
5B.7
5B.8
5C
5C.1
5C.2
5C.3
5C.4
5C.5
5C.6
5C.7
5C.8
5C.9
5C.10
5D
5D.1
5D.2
5D.3
5D.4
5D.5
5D.6
5D.7
5D.8
5D.9
5D.10
CHAPTER 6:
Section
6.1
6.2
6.3
6.4
6.5
6.6
Indoor Displays
Miscellaneous Combustible Materials Storage
Emergency Planning and Preparedness
General
Definitions
Public Assemblages and Events
Fire Safety and Evacuation Plans
Emergency Evacuation Drills
Employee Training and Response Procedures
Hazard Communication
Use and Occupancy-Related Requirements
Fire Service Features
General
Definitions
Fire Apparatus Access Roads
Access to Building Openings and Roofs
Premises Identification
Key Boxes
Hazards to Fire Fighters
Fire Protection Water Supplies
Fire Command Center
Civil Defence Access to Equipment
Building Services and Systems
General
Definitions
Fuel-Fired Appliances
Emergency and Standby Power Systems
Electrical Equipment, Wiring and Hazards
Mechanical Refrigeration
Elevator Recall and Maintenance
Stationary Lead-Acid Battery Systems
Valve-Regulated Lead-Acid (VRLA) Battery Systems
Commercial Kitchen Hoods
INTERIOR FINISH, DECORATIVE MATERIALS AND
FURNISHINGS
General
Definitions
Furnishings
Decorative Vegetation
Decorations and Trim
Interior Finish and Decorative Materials
CHAPTER 7:
FIRE PROTECTION SYSTEMS
Section
7.1
General
7.2
Definitions
7.3
Automatic Sprinkler Systems
7.4
Alternative Automatic Fire-Extinguishing Systems
7.5
Standpipe Systems
7.6
Portable Fire Extinguishers
SBC 801
2007
Contents/3
CONTENTS
7.7
7.8
7.9
7.10
7.11
7.12
7.13
Fire Alarm and Detection Systems
Emergency Alarm Systems
Smoke Control Systems
Smoke and Heat Vents
Explosion Control
Civil Defence Connections
Fire Pumps
CHAPTER 8:
MEANS OF EGRESS
Section
8.1
General
8.2
Definitions
8.3
General Means of Egress
8.4
Occupant Load
8.5
Egress Width
8.6
Means of Egress Illumination
8.7
Accessible Means of Egress
8.8
Doors, Gates and Turnstiles
8.9
Stairways and Handrails
8.10
Ramps
8.11
Exit Signs
8.12
Guards
8.13
Exit Access
8.14
Exit and Exit Access Doorways
8.15
Exit Access Travel Distance
8.16
Corridors
8.17
Exits
8.18
Number of Exits and Continuity
8.19
Vertical Exit Enclosures
8.20
Exit Passageways
8.21
Horizontal Exits
8.22
Exterior Exit Ramps and Stairways
8.23
Exit Discharge
8.24
Assembly
8.25
Emergency Escape and Rescue
8.26
Means of Egress for Existing Buildings
8.27
Maintenance of the Means of Egress
CHAPTER 9:
EXISTING STRUCTURES
Section
9.1
General
9.2
Definitions
9.3
Additions, Alterations or Repairs
9.4
Fire Escapes
9.5
Glass Replacement
9.6
Change of Occupancy
9.7
Historic Buildings
9.8
Moved Structures
9.9
Accessibility for Existing Buildings
9.10
Compliance Alternatives
SBC 801
2007
Contents/4
CONTENTS
CHAPTER 10: FIRE SAFETY DURING CONSTRUCTION AND DEMOLITION
Section
10.1
General
10.2
Definitions
10.3
Temporary Heating Equipment
10.4
Precautions Against Fire
10.5
Flammable and Combustible Liquids
10.6
Flammable Gases
10.7
Explosive Materials
10.8
Owner’s Responsibility for Fire Protection
10.9
Fire Alarm Reporting
10.10
Access for Fire Fighting
10.11
Means of Egress
10.12
Water Supply for Fire Protection
10.13
Standpipes
10.14
Automatic Sprinkler System
10.15
Portable Fire Extinguishers
10.16
Motorized Equipment
10.17
Safeguarding Roofing Operations
CHAPTER 11: AVIATION FACILITIES
Section
11.1
General
11.2
Definitions
11.3
General Precautions
11.4
Aircraft Maintenance
11.5
Portable Fire Extinguishers
11.6
Aircraft Fueling
11.7
Helistops and Heliports
CHAPTER 12: FLAMMABLE FINISHES
Section
12.1
General
12.2
Definitions
12.3
Protection of Operations
12.4
Spray Finishing
12.5
Dipping Operations
12.6
Electrostatic Apparatus
12.7
Powder Coating
12.8
Automobile Undercoating
12.9
Organic Peroxides and Dual-Component Coatings
12.10
Floor Surfacing and Finishing Operations
12.11
Indoor Manufacturing of Reinforced Plastics
12.12
Combustible Dust-Producing Operations
12.12.1
General
12.12.2
Definitions
12.12.3
Precautions
12.12.4
Explosion Protection
SBC 801
2007
Contents/5
CONTENTS
CHAPTER 13: DRY CLEANING
Section
13.1
General
13.2
Definitions
13.3
Classifications
13.4
General Requirements
13.5
Operating Requirements
13.6
Spotting and Pretreating
13.7
Dry Cleaning Systems
13.8
Fire Protection
CHAPTER 14: FRUIT AND CROP RIPENING
Section
14.1
General
14.2
Definitions
14.3
Ethylene Gas
14.4
Sources of Ignition
14.5
Combustible Waste
14.6
Ethylene Generators
14.7
Warning Signs
CHAPTER 15: FUMIGATION AND THERMAL INSECTICIDAL FOGGING
Section
15.1
General
15.2
Definitions
15.3
Fire Safety Requirements
CHAPTER 16: SEMICONDUCTOR FABRICATION FACILITIES
Section
16.1
General
16.2
Definitions
16.3
General Safety Provisions
16.4
Storage
16.5
Use and Handling
CHAPTER 17: LUMBER YARDS AND WOODWORKING FACILITIES
Section
17.1
General
17.2
Definitions
17.3
General Requirements
17.4
Fire Protection
17.5
Plywood, Veneer and Composite Board Mills
17.6
Log Storage Areas
17.7
Storage of Wood Chips and Hogged Material Associated With Timber and
Lumber Production Facilities
17.8
Storage and Processing of Wood Chips, Hogged Material, Fines, Compost and
Raw Product Associated with Yard Waste and Recycling Facilities
17.9
Exterior Storage of Finished Lumber Products
SBC 801
2007
Contents/6
CONTENTS
CHAPTER 18: MANUFACTURE OF ORGANIC COATINGS
Section
18.1
General
18.2
Definitions
18.3
General Precautions
18.4
Electrical Equipment and Protection
18.5
Process Structures
18.6
Process Mills and Kettles
18.7
Process Piping
18.8
Raw Materials in Process Areas
18.9
Raw Materials and Finished Products
CHAPTER 19: INDUSTRIAL OVENS
Section
19.1
General
19.2
Definitions
19.3
Location
19.4
Fuel Piping
19.5
Interlocks
19.6
Fire Protection
19.7
Operation and Maintenance
CHAPTER 20:
Section
20.1
20.2
20.3
20.4
20.5
20.6
20.7
20.8
20.9
20.10
20.11
MOTOR FUEL-DISPENSING FACILITIES AND REPAIR
GARAGES
General
Definitions
Location of Dispensing Devices
Dispensing Operations
Operational Requirements
Flammable and Combustible Liquid Motor Fuel-Dispensing Facilities
Liquefied Petroleum Gas Motor Fuel-Dispensing Facilities
Compressed Natural Gas Motor Fuel-Dispensing Facilities
Hydrogen Motor Fuel-Dispensing and Generation Facilities
Marine Motor Fuel-Dispensing Facilities
Repair Garages
CHAPTER 21: HIGH-PILED COMBUSTIBLE STORAGE
Section
21.1
General
21.2
Definitions
21.3
Commodity Classification
21.4
Designation of High-Piled Storage Areas
21.5
Housekeeping and Maintenance
21.6
General Fire Protection and Life Safety Features
21.7
Solid-Piled and Shelf Storage
21.8
Rack Storage
21.9
Automated Storage
21.10
Specialty Storage
SBC 801
2007
Contents/7
CONTENTS
CHAPTER 22: TENTS, CANOPIES AND OTHER MEMBRANE STRUCTURES
Section
22.1
General
22.2
Definitions
22.3
Temporary Tents, Canopies and Membrane Structures
22.4
Temporary and Permanent Tents, Canopies and Membrane Structures
CHAPTER 23: TIRE REBUILDING AND TIRE STORAGE
Section
23.1
General
23.2
Definitions
23.3
Tire Rebuilding
23.4
Precautions Against Fire
23.5
Outdoor Storage
23.6
Civil Defence Access
23.7
Fencing
23.8
Fire Protection
23.9
Indoor Storage Arrangement
CHAPTER 24: WELDING AND OTHER HOT WORK
Section
24.1
General
24.2
Definitions
24.3
General Requirements
24.4
Fire Safety Requirements
24.5
Gas Welding and Cutting
24.6
Electric Arc Hot Work
24.7
Calcium Carbide Systems
24.8
Acetylene Generators
24.9
Piping Manifolds and Hose Systems for Fuel Gases and Oxygen
CHAPTER 25: HAZARDOUS MATERIALS—GENERAL PROVISIONS
Section
25.1
General
25.2
Definitions
25.3
General Requirements
25.4
Storage
25.5
Use, Dispensing and Handling
CHAPTER 26: AEROSOLS
Section
26.1
General
26.2
Definitions
26.3
Classification of Aerosol Products
26.4
Inside Storage of Aerosol Products
26.5
Outside Storage
26.6
Retail Display
26.7
Manufacturing Facilities
SBC 801
2007
Contents/8
CONTENTS
CHAPTER 27: COMBUSTIBLE FIBERS
Section
27.1
General
27.2
Definitions
27.3
General Precautions
27.4
Loose Fiber Storage
27.5
Baled Storage
CHAPTER 28: COMPRESSED GASES
Section
28.1
General
28.2
Definitions
28.3
General Requirements
28.4
Storage of Compressed Gases
28.5
Use and Handling of Compressed Gases
28.6
Medical Gas Systems
28.7
Compressed Gases Not Otherwise Regulated
CHAPTER 29: CORROSIVE MATERIALS
Section
29.1
General
29.2
Definitions
29.3
General Requirements
29.4
Storage
29.5
Use
CHAPTER 30: CRYOGENIC FLUIDS
Section
30.1
General
30.2
Definitions
30.3
General Requirements
30.4
Storage
30.5
Use and Handling
CHAPTER 31: EXPLOSIVES AND FIREWORKS
Section
31.1
General
31.2
Definitions
31.3
Record Keeping and Reporting
31.4
Explosive Materials Storage and Handling
31.5
Manufacture, Assembly and Testing of Explosives, Explosive Materials and
Fireworks
31.6
Small Arms Ammunition
31.7
Blasting
31.8
Fireworks Display
CHAPTER 32: FLAMMABLE AND COMBUSTIBLE LIQUIDS
Section
32.1
General
32.2
Definitions
32.3
General Requirements
32.4
Storage
SBC 801
2007
Contents/9
CONTENTS
32.5
32.6
Dispensing, Use, Mixing and Handling
Special Operations
CHAPTER 33: FLAMMABLE GASES
Section
33.1
General
33.2
Definitions
33.3
General Requirements
33.4
Storage
33.5
Use
CHAPTER 34: FLAMMABLE SOLIDS
Section
34.1
General
34.2
Definitions
34.3
General Requirements
34.4
Storage
34.5
Use
34.6
Magnesium
CHAPTER 35: HIGHLY TOXIC AND TOXIC MATERIALS
Section
35.1
General
35.2
Definitions
35.3
Highly Toxic and Toxic Solids and Liquids
35.4
Highly Toxic and Toxic Compressed Gases
35.5
Ozone Gas Generators
CHAPTER 36: LIQUEFIED PETROLEUM GASES
Section
36.1
General
36.2
Definitions
36.3
Installation of Equipment
36.4
Location of Containers
36.5
Prohibited Use of LP-Gas
36.6
Dispensing and Overfilling
36.7
Safety Precautions and Devices
36.8
Fire Protection
36.9
Storage of Portable LP-Gas Containers Awaiting Use or Resale
36.10
Containers Not in Service
36.11
Parking and Garaging
CHAPTER 37: ORGANIC PEROXIDES
Section
37.1
General
37.2
Definitions
37.3
General Requirements
37.4
Storage
37.5
Use
SBC 801
2007
Contents/10
CONTENTS
CHAPTER 38: OXIDIZERS
Section
38.1
General
38.2
Definitions
38.3
General Requirements
38.4
Storage
38.5
Use
CHAPTER 39: PYROPHORIC MATERIALS
Section
39.1
General
39.2
Definitions
39.3
General Requirements
39.4
Storage
39.5
Use
39.6
Silane Gas
CHAPTER 40: PYROXYLIN (CELLULOSE NITRATE) PLASTICS
Section
40.1
General
40.2
Definitions
40.3
General Requirements
40.4
Storage and Handling
CHAPTER 41: UNSTABLE (REACTIVE) MATERIALS
Section
41.1
General
41.2
Definitions
41.3
General Requirements
41.4
Storage
41.5
Use
CHAPTER 42: WATER-REACTIVE SOLIDS AND LIQUIDS
Section
42.1
General
42.2
Definitions
42.3
General Requirements
42.4
Storage
42.5
Use
APPENDIX A
REFERENCED STANDARDS
APPENDIX B
FIRE-FLOW REQUIREMENTS FOR BUILDINGS
Section
B1
General
B2
Definitions
B3
Modifications
B4
Fire Area
B5
Fire-Flow Requirements for Buildings
SBC 801
2007
Contents/11
CONTENTS
APPENDIX C
FIRE HYDRANT LOCATIONS AND DISTRIBUTION
Section
C1
General
C2
Location
C3
Number of Fire Hydrants
C4
Consideration of Existing Fire Hydrants
C5
Distribution of Fire Hydrants
APPENDIX D
FIRE APPARATUS ACCESS ROADS
Section
D1
General
D2
Required Access
D3
Minimum Specifications
D4
Commercial and Industrial Developments
D5
Aerial Fire Apparatus Access Roads
D6
Multiple-Family Residential Developments
D7
One- or Two-Family Residential Developments
APPENDIX E
HAZARD CATEGORIES
Section
E1
General
E2
Hazard Categories
E3
Evaluation of Hazards
APPENDIX F
HAZARD RANKING
Section
F1
General
F2
Referenced Standards
APPENDIX G
Section
G1
SBC 801
CRYOGENIC FLUIDS—WEIGHT AND VOLUME
EQUIVALENTS
General
2007
Contents/12
DEFINITIONS
CHAPTER 1
DEFINITIONS
SECTION 1.1
GENERAL
1.1.1
Scope. Unless otherwise expressly stated, the following words and terms shall, for
the purposes of these code requirements, have the meanings shown in this chapter.
1.1.2
Interchangeability. Words used in the present tense include the future; words
stated in the masculine gender include the feminine and neuter; the singular
number includes the plural and the plural, the singular.
1.1.3
Terms defined in other codes. Where terms are not defined in these code
requirements and are defined in the SBC 201, SBC 501 or SBC 701, such terms
shall have the meanings ascribed to them as in those code requirements.
1.1.4
Terms not defined. Where terms are not defined through the methods authorized
by this section, such terms shall have ordinarily accepted meanings such as the
context implies. Webster’s Third New International Dictionary of the English
Language, Unabridged, shall be considered as providing ordinarily accepted
meanings.
SECTION 1.2
GENERAL DEFINITIONS
ACCESSIBLE MEANS OF EGRESS. See Section 8.2.1.
AEROSOL. See Section 26.2.1.
Level 1 aerosol products. See Section 26.2.1.
Level 2 aerosol products. See Section 26.2.1.
Level 3 aerosol products. See Section 26.2.1.
AEROSOL CONTAINER. See Section 26.2.1.
AEROSOL WAREHOUSE. See Section 26.2.1.
AGENT. A person who shall have charge, care or control of any structure as
owner, or agent of the owner, or as executor, executrix, administrator,
administratrix, trustee or guardian of the estate of the owner. Any such person
representing the actual owner shall be bound to comply with the provisions of
these code requirements to the same extent as if that person was the owner.
AIR-SUPPORTED STRUCTURE. See Section 22.2.1.
AIRCRAFT OPERATION AREA (AOA). See Section 11.2.1.
AIRPORT. See Section 11.2.1.
AISLE ACCESSWAY. See Section 8.2.1.
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DEFINITIONS
ALARM NOTIFICATION APPLIANCE. See Section 7.2.1.
ALARM SIGNAL. See Section 7.2.1.
ALARM VERIFICATION FEATURE. See Section 7.2.1.
ALTERNATING TREAD DEVICE. See Section 8.2.1.
AMMONIUM NITRATE. See Section 31.2.1.
ANNUNCIATOR. See Section 7.2.1.
APPROVED. Acceptable to the Building code official.
AREA OF REFUGE. See Section 8.2.1.
ARRAY. See Section 21.2.1.
ARRAY, CLOSED. See Section 21.2.1.
AUDIBLE ALARM NOTIFICATION APPLIANCE. See Section 7.2.1.
AUTOMATIC. See Section 7.2.1.
AUTOMATIC FIRE-EXTINGUISHING SYSTEM. See Section 7.2.1.
AUTOMATIC SPRINKLER SYSTEM. See Section 7.2.1.
AUTOMOTIVE MOTOR FUEL-DISPENSING FACILITY. See Section
20.2.1.
AVERAGE AMBIENT SOUND LEVEL. See Section 7.2.1.
BARRICADE. See Section 31.2.1.
Artificial barricade. See Section 31.2.1.
Natural barricade. See Section 31.2.1.
BARRICADED. See Section 31.2.1.
BATTERY, LEAD ACID. See Section 5D.2.1.
BATTERY SYSTEM, STATIONARY LEAD ACID. See Section 5D.2.1.
BIN BOX. See Section 21.2.1.
BLAST AREA. See Section 31.2.1.
BLAST SITE. See Section 31.2.1.
BLASTER. See Section 31.2.1.
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DEFINITIONS
BLASTING AGENT. See Section 31.2.1.
BLEACHERS. See Section 8.2.1.
BOILING POINT. See Section 25.2.1.
BONFIRE. See Section 5A.2.1.
BRITISH THERMAL UNIT (BTU). The heat necessary to raise the temperature
of 0.454 kg of water by 0.5565°C.
BULK OXYGEN SYSTEM. See Section 38.2.1.
BULK PLANT OR TERMINAL. See Section 32.2.1.
BULK TRANSFER. See Section 32.2.1.
BULLET RESISTANT. See Section 31.2.1.
CANOPY. See Section 22.2.1.
CARBON DIOXIDE EXTINGUISHING SYSTEM. See Section 7.2.1.
CARTON. A cardboard or fiberboard box enclosing a product.
CEILING LIMIT. See Section 25.2.1.
CHEMICAL. See Section 25.2.1.
CHEMICAL NAME. See Section 25.2.1.
CLEAN AGENT. See Section 7.2.1.
CLOSED CONTAINER. See Section 25.2.1.
CLOSED SYSTEM. The use of a solid or liquid hazardous material involving a
closed vessel or system that remains closed during normal operations where
vapors emitted by the product are not liberated outside of the vessel or system and
the product is not exposed to the atmosphere during normal operations; and all
uses of compressed gases. Examples of closed systems for solids and liquids
include product conveyed through a piping system into a closed vessel, system or
piece of equipment.
COLD DECK. See Section 17.2.1.
COMBUSTIBLE DUST. See Section 12.2.1.
COMBUSTIBLE FIBERS. See Section 27.2.1.
COMBUSTIBLE LIQUID. See Section 32.2.1.
Class II. See Section 32.2.1.
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DEFINITIONS
Class IIIA. See Section 32.2.1.
Class IIIB. See Section 32.2.1.
COMMERCIAL COOKING APPLIANCES. See Section 5D.2.1.
COMMODITY. See Section 21.2.1.
COMMON PATH OF EGRESS TRAVEL. See Section 8.2.1.
COMPRESSED GAS. See Section 28.2.1.
COMPRESSED GAS CONTAINER. See Section 28.2.1.
COMPRESSED GAS SYSTEM. See Section 28.2.1.
CONSTANTLY ATTENDED LOCATION. See Section 7.2.1.
CONSTRUCTION DOCUMENTS. The written, graphic and pictorial
documents prepared or assembled for describing the design, location and physical
characteristics of the elements of the project necessary for obtaining a permit.
CONTAINER. See Section 25.2.1.
CONTAINMENT SYSTEM. See Section 35.2.1.
CONTAINMENT VESSEL. See Section 35.2.1.
CONTINUOUS GAS DETECTION SYSTEM. See Section 16.2.1.
CONTROL AREA. See Section 25.2.1.
CORRIDOR. See Section 8.2.1.
CORROSIVE. See Section 29.2.1.
CRYOGENIC CONTAINER. See Section 30.2.1.
CRYOGENIC FLUID. See Section 30.2.1.
CRYOGENIC VESSEL. See Section 30.2.1.
CYLINDER. See Section 25.2.1.
DEFLAGRATION. See Section 25.2.1.
DELUGE SYSTEM. See Section 7.2.1.
DESIGN PRESSURE. See Section 25.2.1.
DETACHED BUILDING. See Section 25.2.1.
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DEFINITIONS
DETEARING. See Section 12.2.1.
DETECTOR, HEAT. See Section 7.2.1.
DETONATING CORD. See Section 31.2.1.
DETONATION. See Section 31.2.1.
DETONATOR. See Section 31.2.1.
DIP TANK. See Section 12.2.1.
DISCHARGE SITE. See Section 31.2.1.
DISPENSING. See Section 25.2.1.
DISPENSING DEVICE, OVERHEAD TYPE. See Section 20.2.1.
DISPLAY SITE. See Section 31.2.1.
DOOR, BALANCED. See Section 8.2.1.
DRAFT CURTAIN. See Section 21.2.1.
DRY-CHEMICAL EXTINGUISHING AGENT. See Section 7.2.1.
DRY CLEANING. See Section 13.2.1.
DRY CLEANING PLANT. See Section 13.2.1.
DRY CLEANING ROOM. See Section 13.2.1.
DRY CLEANING SYSTEM. See Section 13.2.1.
EARLY SUPPRESSION FAST-RESPONSE (ESFR) SPRINKLER. See
Section 21.2.1.
EGRESS COURT. See Section 8.2.1.
ELECTROSTATIC FLUIDIZED BED. See Section 12.2.1.
EMERGENCY ALARM SYSTEM. See Section 7.2.1.
EMERGENCY CONTROL STATION. See Section 16.2.1.
EMERGENCY ESCAPE AND RESCUE OPENING. See Section 8.2.1.
EMERGENCY EVACUATION DRILL. See Section 5B2.1.
EMERGENCY VOICE/ALARM COMMUNICATIONS. See Section 7.2.1.
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DEFINITIONS
EXCESS FLOW CONTROL. See Section 25.2.1.
EXCESS FLOW VALVE. See Section 35.2.1.
EXHAUSTED ENCLOSURE. See Section 25.2.1.
EXISTING. Buildings, facilities or conditions which are already in existence,
constructed or officially authorized prior to the adoption of these code
requirements.
EXIT. See Section 8.2.1.
EXIT ACCESS. See Section 8.2.1.
EXIT DISCHARGE. See Section 8.2.1.
EXIT DISCHARGE, LEVEL OF. See Section 8.2.1.
EXIT ENCLOSURE. See Section 8.2.1.
EXIT, HORIZONTAL. See Section 8.2.1.
EXIT PASSAGEWAY. See Section 8.2.1.
EXPANDED PLASTIC. See Section 21.2.1.
EXPLOSION. See Section 25.2.1.
EXPLOSIVE. See Section 31.2.1.
High Explosive. See Section 31.2.1.
Low Explosive. See Section 31.2.1.
Mass-detonating Explosives. See Section 31.2.1.
MOI (UN/DOTn) Class 1 Explosives. See Section 31.2.1.
Division 1.1. See Section 31.2.1.
Division 1.2. See Section 31.2.1.
Division 1.3. See Section 31.2.1.
Division 1.4. See Section 31.2.1.
Division 1.5. See Section 31.2.1.
Division 1.6. See Section 31.2.1.
EXPLOSIVE MATERIAL. See Section 31.2.1.
EXTRA-HIGH-RACK COMBUSTIBLE STORAGE. See Section 21.2.1.
FABRICATION AREA. See Section 16.2.1.
FACILITY. A building or use in a fixed location including exterior storage areas
for flammable and combustible substances and hazardous materials, piers,
wharves, tank farms and similar uses. This term includes recreational vehicles,
mobile home and manufactured housing parks, sales and storage lots.
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DEFINITIONS
FALLOUT AREA. See Section 31.2.1.
FALSE ALARM. The willful and knowing initiation or transmission of a signal,
message or other notification of an event of fire when no such danger exists.
FINES. See Section 17.2.1.
FIRE ALARM. The giving, signaling or transmission to any public fire station, or
company or to any officer or employee thereof, whether by telephone, spoken
word or otherwise, of information to the effect that there is a fire at or near the
place indicated by the person giving, signaling, or transmitting such information.
FIRE ALARM BOX, MANUAL. See Section 7.2.1.
FIRE ALARM CONTROL UNIT. See Section 7.2.1.
FIRE ALARM SIGNAL. See Section 7.2.1.
FIRE ALARM SYSTEM. See Section 7.2.1.
FIRE APPARATUS ACCESS ROAD. See Section 5C.2.1.
FIRE AREA. See Section 7.2.1.
FIRE CHIEF. The chief officer of the Civil Defence serving the jurisdiction, or a
duly authorized representative.
BUILDING CODE OFFICIAL. Designated authority charged with the
administration and enforcement of the code, or a duly authorized representative.
FIRE COMMAND CENTER. See Section 5C.2.1.
CIVIL DEFENCE MASTER KEY. See Section 5C.2.1.
FIRE DETECTOR, AUTOMATIC. See Section 7.2.1.
FIRE DOOR ASSEMBLY. Any combination of a fire door, frame, hardware,
and other accessories that together provide a specific degree of fire protection to
the opening.
FIRE EXIT HARDWARE. See Section 8.2.1.
FIRE LANE. See Section 5C.2.1.
FIRE PARTITION. A vertical assembly of materials designed to restrict the
spread of fire in which openings are protected.
FIRE POINT. See Section 32.2.1.
FIRE PROTECTION SYSTEM. See Section 7.2.1.
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DEFINITIONS
FIRE SAFETY FUNCTIONS. See Section 7.2.1.
FIREWATCH. A temporary measure intended to ensure continuous and
systematic surveillance of a building or portion thereof by one or more qualified
individuals for the purposes of identifying and controlling fire hazards, detecting
early signs of unwanted fire, raising an alarm of fire and notifying the Civil
Defence.
FIREWORKS. See Section 31.2.1.
Fireworks, 1.4G. See Section 31.2.1.
Fireworks, 1.3G. See Section 31.2.1.
FIREWORKS DISPLAY. See Section 31.2.1.
FLAMMABLE CRYOGENIC FLUID. See Section 30.2.1.
FLAMMABLE FINISHES. See Section 12.2.1.
FLAMMABLE GAS. See Section 33.2.1.
FLAMMABLE LIQUEFIED GAS. See Section 33.2.1.
FLAMMABLE LIQUID. See Section 32.2.1.
Class IA. See Section 32.2.1.
Class IB. See Section 32.2.1.
Class IC. See Section 32.2.1.
FLAMMABLE MATERIAL. A material capable of being readily ignited from
common sources of heat or at a temperature of 316oC or less.
FLAMMABLE SOLID. See Section 34.2.1.
FLAMMABLE VAPORS OR FUMES. See Section 25.2.1.
FLASH POINT. See Section 32.2.1.
FLEET VEHICLE MOTOR FUEL-DISPENSING FACILITY. See Section
20.2.1.
FLOOR AREA, GROSS. See Section 8.2.1.
FLOOR AREA, NET. See Section 8.2.1.
FLUIDIZED BED. See Section 12.2.1.
FOAM-EXTINGUISHING SYSTEM. See Section 7.2.1.
FOLDING AND TELESCOPIC SEATING. See Section 8.2.1.
FUEL LIMIT SWITCH. See Section 32.2.1.
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DEFINITIONS
FUMIGANT. See Section 15.2.1.
FUMIGATION. See Section 15.2.1.
FURNACE CLASS A. See Section 19.2.1.
FURNACE CLASS B. See Section 19.2.1.
FURNACE CLASS C. See Section 19.2.1.
FURNACE CLASS D. See Section 19.2.1.
GAS CABINET. See Section 25.2.1.
GAS ROOM. See Section 25.2.1.
GRANDSTAND. See Section 8.2.1.
GUARD. See Section 8.2.1.
HALOGENATED EXTINGUISHING SYSTEM. See Section 7.2.1.
HANDLING. See Section 25.2.1.
HANDRAIL. See Section 8.2.1.
HAZARDOUS MATERIAL. See Section 25.2.1.
HAZARDOUS PRODUCTION MATERIAL (HPM). See Section 16.2.1.
HEALTH HAZARD. See Section 25.2.1.
HELIPORT. See Section 11.2.1.
HELISTOP. See Section 11.2.1.
HI-BOY. See Section 5A.2.1.
HIGH-PILED COMBUSTIBLE STORAGE. See Section 21.2.1.
HIGH-PILED STORAGE AREA. See Section 21.2.1.
HIGHLY TOXIC. See Section 35.2.1.
HIGHLY VOLATILE LIQUID. A liquefied compressed gas with a boiling point
of less than 20oC.
HIGHWAY. See Section 31.2.1.
HOGGED MATERIALS. See Section 17.2.1.
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DEFINITIONS
HOOD. See Section 5D.2.1.
Type I. See Section 5D.2.1.
HOT WORK. See Section 24.2.1.
HOT WORK AREA. See Section 24.2.1.
HOT WORK EQUIPMENT. See Section 24.2.1.
HOT WORK PERMITS. See Section 24.2.1.
HOT WORK PROGRAM. See Section 24.2.1.
HPM FLAMMABLE LIQUID. See Section 16.2.1.
HPM ROOM. See Section 16.2.1.
IMMEDIATELY DANGEROUS TO LIFE AND HEALTH (IDLH). See
Section 25.2.1.
IMPAIRMENT COORDINATOR. See Section 7.2.1.
INCOMPATIBLE MATERIALS. See Section 25.2.1.
INHABITED BUILDING. See Section 31.2.1.
INITIATING DEVICE. See Section 7.2.1.
IRRITANT. A chemical which is not corrosive, but which causes a reversible
inflammatory effect on living tissue by chemical action at the site of contact. A
chemical is a skin irritant if, when tested on the intact skin of albino rabbits by the
methods of CPSC 16CFR Part 1500.41 for an exposure of four or more hours or
by other appropriate techniques, it results in an empirical score of 5 or more. A
chemical is classified as an eye irritant if so determined under the procedure listed
in CPSC 16CFR Part 1500.42 or other approved techniques.
KEY BOX. See Section 5C.2.1.
LABELED. Equipment or material to which has been attached a label, symbol or
other identifying mark of a nationally recognized testing laboratory, inspection
agency or other organization concerned with product evaluation that maintains
periodic inspection of production of labeled equipment or materials, and by whose
labeling is indicated compliance with nationally recognized standards or tests to
determine suitable usage in a specified manner.
LIMITED SPRAYING SPACE. See Section 12.2.1.
LIQUEFIED NATURAL GAS (LNG). See Section 20.2.1.
LIQUEFIED PETROLEUM GAS (LP-gas). See Section 36.2.1.
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DEFINITIONS
LIQUID. See Section 25.2.1.
LIQUID STORAGE ROOM. See Section 32.2.1.
LISTED. Equipment or materials included on a list published by an approved
testing laboratory, inspection agency or other organization concerned with current
product evaluation that maintains periodic inspection of production of listed
equipment or materials, and whose listing states that equipment or materials
comply with approved nationally recognized standards and have been tested or
evaluated and found suitable for use in a specified manner.
LONGITUDINAL FLUE SPACE. See Section 21.2.1.
LOW-PRESSURE TANK. See Section 30.2.1.
LOWER EXPLOSIVE LIMIT (LEL). See Section 25.2.1.
LOWER FLAMMABLE LIMIT (LFL). See Section 25.2.1.
MAGAZINE. See Section 31.2.1.
Indoor. See Section 31.2.1.
Type 1. See Section 31.2.1.
Type 2. See Section 31.2.1.
Type 3. See Section 31.2.1.
Type 4. See Section 31.2.1.
Type 5. See Section 31.2.1.
MAGNESIUM. See Section 34.2.1.
MANUAL FIRE ALARM BOX. See Section 7.2.1.
MANUAL STOCKING METHODS. See Section 21.2.1.
MARINE MOTOR FUEL-DISPENSING FACILITY. See Section 20.2.1.
MATERIAL SAFETY DATA SHEET (MSDS). See Section 25.2.1.
MAXIMUM ALLOWABLE QUANTITY PER CONTROL AREA. See
Section 25.2.1.
MEANS OF EGRESS. See Section 8.2.1.
MECHANICAL STOCKING METHODS. See Section 21.2.1.
MEMBRANE STRUCTURE. See Section 22.2.1.
MOBILE FUELING. See Section 32.2.1.
MOI. Ministry of Interior.
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DEFINITIONS
MORTAR. See Section 31.2.1.
MOT. Ministry of Transportation.
MULTIPLE-STATION ALARM DEVICE. See Section 7.2.1.
MULTIPLE-STATION SMOKE ALARM. See Section 7.2.1.
NESTING. See Section 28.2.1.
NET EXPLOSIVE WEIGHT (net weight). See Section 31.2.1.
NORMAL TEMPERATURE AND PRESSURE (NTP). See Section 25.2.1.
NOSING. See Section 8.2.1.
NUISANCE ALARM. See Section 7.2.1.
OCCUPANCY CLASSIFICATION. For the purposes of these code
requirements, certain occupancies are defined as follows:
Assembly Group A. Assembly Group A occupancy includes, among others,
the use of a building or structure, or a portion thereof, for the gathering
together of persons for purposes such as civic, social or religious functions,
recreation, food or drink consumption or awaiting transportation. A room or
space used for assembly purposes by less than 50 persons and accessory to
another occupancy shall be included as a part of that occupancy. Assembly
areas with less than 69.7 m2 and which are accessory to another occupancy
according to Section 2A.2.2.1 are not assembly occupancies. Assembly
occupancies which are accessory to Group E in accordance with Section
2A.2.2 are not considered assembly occupancies. Religious educational rooms
and religious auditoriums which are accessory to mosques in accordance with
Section 2A.2.2 and which have occupant loads of less than 100 shall be
classified as A-3. A building or tenant space used for assembly purposes by
less than 50 persons shall be considered a Group B occupancy. Assembly
occupancies shall include the following:
A-1 Assembly uses, usually with fixed seating, intended for the production and
viewing of performing arts or motion pictures including but not limited to:
Motion picture theaters
Symphony and concert halls
Television and radio studios admitting an audience
Theaters
A-2 Assembly uses intended for food and/or drink consumption including, but
not limited to:
Banquet halls
Restaurants
A-3 Assembly uses intended for worship, recreation or amusement and other
assembly uses not classified elsewhere in Group A, including, but not limited
to:
Amusement arcades
Art galleries
Bowling alleys
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DEFINITIONS
Mosques
Community halls
Courtrooms
Exhibition halls
Gymnasiums (without spectator seating)
Indoor swimming pools (without spectator seating)
Indoor tennis courts (without spectator seating)
Lecture halls
Libraries
Museums
Waiting areas in transportation terminals
Pool and billiard parlors
A-4 Assembly uses intended for viewing of indoor sporting events and
activities with spectator seating including, but not limited to:
Arenas
Skating rinks
Swimming pools
Tennis courts
A-5 Assembly uses intended for participation in or viewing outdoor activities
including, but not limited to:
Amusement park structures
Bleachers
Grandstands
Stadiums
Business Group B. Business Group B occupancy includes, among others, the
use of a building or structure, or a portion thereof, for office, professional or
service-type transactions, including storage of records and accounts. Business
occupancies shall include, but not be limited to, the following:
Airport traffic control towers
Animal hospitals, kennels, pounds
Banks
Barber and beauty shops
Car wash
Civic administration
Clinic—outpatient
Dry cleaning and laundries; pick-up and delivery stations and self-service
Educational occupancies above the 12th grade
Electronic data processing
Laboratories; testing and research
Motor vehicle showrooms
Post offices
Print shops
Professional services (architects, attorneys, dentists, physicians, engineers,
etc.)
Radio and television stations
Telephone exchanges
Educational Group E. Educational Group E occupancy includes, among
others, the use of a building or structure, or a portion thereof, by six or more
persons at any one time for educational purposes through the 12th grade.
Educational rooms and auditoriums, which are accessory to mosques in
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DEFINITIONS
accordance with Section 5A.2.2 and have occupant loads of less than 100, shall
be classified as Group A-3 occupancies.
Day care. The use of a building or structure, or portion thereof, for
educational, supervision or personal care services for more than five children
older than 21/2 years of age shall be classified as an E occupancy.
Factory Industrial Group F. Factory Industrial Group F occupancy includes,
among others, the use of a building or structure, or a portion thereof, for
assembling, disassembling, fabricating, finishing, manufacturing, packaging,
repair or processing operations that are not classified as a Group H high-hazard
or Group S storage occupancy.
Factory Industrial F-1 Moderate-Hazard Occupancy. Factory Industrial
uses which are not classified as Factory Industrial Group F-2 shall be classified
as F-1 Moderate Hazard and shall include, but not be limited to, the following:
Aircraft
Appliances
Athletic equipment
Automobiles and other motor vehicles
Bakeries
Bicycles
Boats
Brooms or brushes
Business machines
Cameras and photo equipment
Canvas and similar fabric
Carpet and rugs (includes cleaning)
Disinfectants
Dry cleaning and dyeing
Electric generation plants
Electronics
Engines (including rebuilding)
Food processing
Furniture
Hemp products
Jute products
Laundries
Leather products
Machinery
Metals
Millwork (sash and doors)
Motion picture and television filming (without spectators)
Musical instruments
Optical goods
Paper mills or products
Photographic film
Plastic products
Printing or publishing
Recreational vehicles
Refuse incineration
Shoes
Soaps and detergents
Textiles
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DEFINITIONS
Tobacco
Trailers
Upholstering
Wood; distillation
Woodworking (cabinet)
Factory Industrial F-2 Low-Hazard Occupancy. Factory industrial uses
involving the fabrication or manufacturing of noncombustible materials which,
during finishing, packaging or processing do not involve a significant fire
hazard, shall be classified as Group F-2 occupancies and shall include, but not
be limited to, the following:
Brick and masonry
Ceramic products
Foundries
Glass products
Gypsum
Ice
Metal products (fabrication and assembly)
High-Hazard Group H. High-hazard Group H occupancy includes, among
others, the use of a building or structure, or a portion thereof, that involves the
manufacturing, processing, generation or storage of materials that constitute a
physical or health hazard in quantities in excess of those found in Tables
2A.7.7(1) and 2A.7.7(2). (See also definition of “Control area)”.
Exception: Occupancies as provided for in the SBC 201 shall not be classified
as Group H, but shall be classified in the occupancy which they most nearly
resemble.
High-hazard Group H-1. Buildings and structures containing materials that
pose a detonation hazard, shall be classified as Group H-1. Such materials shall
include, but not be limited to, the following:
Explosives:
Division 1.1
Division 1.2
Division 1.3
Exception: Materials that are used and maintained in a form where either
confinement or configuration will not elevate the hazard from a mass fire to
mass explosion hazard shall be allowed in Group H-2 occupancies.
Division 1.4
Exception: Articles, including articles packaged for shipment, that are not
regulated as an explosive under Bureau of Alcohol, Tobacco and Firearms
regulations, or unpackaged articles used in process operations that do not
propagate a detonation or deflagration between articles shall be allowed in
Group H-3 occupancies.
Division 1.5
Division 1.6
Organic peroxides, unclassified detonable
Oxidizers, Class 4
Unstable (reactive) materials, Class 3 detonable, and Class 4
Detonable pyrophoric materials
High-hazard Group H-2. Buildings and structures containing materials that
pose a deflagration hazard or a hazard from accelerated burning shall be
classified as Group H-2. Such materials shall include, but not be limited to, the
following:
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DEFINITIONS
Class I, or II or IIIA flammable or combustible liquids which are used or
stored in normally open containers or systems, or in closed containers or
systems pressurized at more than 15 pounds per square inch (103.4 kPa) gauge
Combustible dusts
Cryogenic fluids, flammable
Flammable gases
Organic peroxides, Class I
Oxidizers, Class 3, that are used or stored in normally open containers or
systems, or in closed containers or systems pressurized at more than 103.4 kPa
gauge
Pyrophoric liquids, solids and gases, nondetonable
Unstable (reactive) materials, Class 3, nondetonable
Water-reactive materials, Class 3
High-hazard Group H-3. Buildings and structures containing materials that
readily support combustion or that pose a physical hazard shall be classified as
Group H-3. Such materials shall include, but not be limited to, the following:
Class I, II or IIIA flammable or combustible liquids which are used or stored in
normally closed containers or systems pressurized at less than 103.4 kPa gauge
Combustible fibers
Consumer fireworks, 1.4G (Class C, Common)
Cryogenic fluids, oxidizing
Flammable solids
Organic peroxides, Class II and Class III
Oxidizers, Class 2
Oxidizing gases
Unstable (reactive) materials, Class 2
Water-reactive materials, Class 2
High-hazard Group H-4. Buildings and structures which contain materials
that are health hazards shall be classified as Group H-4. Such materials shall
include, but not be limited to, the following:
Corrosives
Highly toxic materials
Toxic materials
High-hazard Group H-5. Semiconductor fabrication facilities and
comparable research and development areas in which hazardous production
materials (HPM) are used and the aggregate quantity of materials is in excess
of those listed in Tables 2A.7.7(1) and 2A.7.7(2). Such facilities and areas
shall be designed and constructed in accordance with Section 2B.15.9.
Institutional Group I. Institutional Group I occupancy includes, among
others, the use of a building or structure, or a portion thereof, in which people,
cared for or living in a supervised environment and having physical limitations
because of health or age, are harbored for medical treatment or other care or
treatment, or in which people are detained for penal or correctional purposes or
in which the liberty of the occupants is restricted. Institutional occupancies
shall be classified as Group I-1, I-2, I-3 or I-4.
Group I-1. This occupancy shall include buildings, structures or parts thereof
housing more than 16 persons, on a 24-hour basis, who because of age, mental
disability or other reasons, live in a supervised residential environment that
provides personal care services. The occupants are capable of responding to an
emergency situation without physical assistance from staff. This group shall
include, but not be limited to, the following:
SBC 801
2007
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DEFINITIONS
Alcohol and drug centers
Assisted living facilities
Congregate care facilities
Convalescent facilities
Group homes
Half-way houses
Residential board and care facilities
Social rehabilitation facilities
A facility such as the above with five or fewer persons shall be classified as
Group R-3. A facility such as above, housing at least six and not more than 16
persons, shall be classified as Group R-4.
Group I-2. This occupancy shall include buildings and structures used for
medical, surgical, psychiatric, nursing or custodial care on a 24-hour basis of
more than five persons who are not capable of self-preservation. This group
shall include, but not be limited to, the following:
Hospitals
Nursing homes (both intermediate care facilities and skilled nursing facilities)
Mental hospitals
Detoxification facilities
A facility such as the above with five or fewer persons shall be classified as
Group R-3.
A child care facility which provides care on a 24-hour basis to more than five
children 21/2 years of age or less shall be classified as Group I-2.
Group I-3. This occupancy shall include buildings and structures which are
inhabited by more than five persons who are under restraint or security. An I-3
facility is occupied by persons who are generally incapable of self-preservation
due to security measures not under the occupants’ control. This group shall
include, but not be limited to, the following:
Correctional centers
Detention centers
Jails
Prerelease centers
Prisons
Reformatories
Buildings of Group I-3 shall be classified as one of the occupancy conditions
indicated in Sections 2A.8.4.1 through 2A.8.4.5 (see Section 2B.8.1).
Condition 1. This occupancy condition shall include buildings in which free
movement is allowed from sleeping areas and other spaces where access or
occupancy is permitted, to the exterior via means of egress without restraint. A
Condition 1 facility is permitted to be constructed as Group R.
Condition 2. This occupancy condition shall include buildings in which free
movement is allowed from sleeping areas and any other occupied smoke
compartment to one or more other smoke compartments. Egress to the exterior
is impeded by locked exits.
Condition 3. This occupancy condition shall include buildings in which free
movement is allowed within individual smoke compartments, such as within a
residential unit comprised of individual sleeping units and group activity
spaces, where egress is impeded by remote-controlled release of means of
egress from such smoke compartment to another smoke compartment.
Condition 4. This occupancy condition shall include buildings in which free
movement is restricted from an occupied space. Remote-controlled release is
SBC 801
2007
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DEFINITIONS
provided to permit movement from sleeping units, activity spaces and other
occupied areas within the smoke compartment to other smoke compartments.
Condition 5. This occupancy condition shall include buildings in which free
movement is restricted from an occupied space. Staff-controlled manual
release is provided to permit movement from sleeping units, activity spaces
and other occupied areas within the smoke compartment to other smoke
compartments.
Group I-4, day care facilities. This group shall include buildings and
structures occupied by persons of any age who receive custodial care for less
than 24 hours by individuals other than parents or guardians, relatives by blood
marriage, or adoption, and in a place other than the home of the person cared
for. A facility such as the above with five or fewer persons shall be classified
as Group R-3. Places of worship during religious functions are not included.
Adult care facility. A facility that provides accommodations for less than 24
hours for more than five unrelated adults and provides supervision and
personal care services shall be classified as Group I-4.
Exception: Where the occupants are capable of responding to an emergency
situation without physical assistance from the staff the facility shall be
classified as Group A-3.
Child care facility. A facility that provides supervision and personal care on
less than a 24-hour basis for more than five children 21/2 years of age or less
shall be classified as Group I-4.
Exception: A child day care facility which provides care for more than five
but no more than 100 children 21/2 years or less of age, when the rooms where
such children are cared for are located on the level of exit discharge and each
of these child care rooms has an exit door directly to the exterior, shall be
classified as Group E.
Mercantile Group M. Mercantile Group M occupancy includes, among
others, buildings and structures or a portion thereof, for the display and sale of
merchandise, and involves stocks of goods, wares or merchandise incidental to
such purposes and accessible to the public. Mercantile occupancies shall
include, but not be limited to, the following:
Department stores
Drug stores
Markets
Motor fuel-dispensing facilities
Retail or wholesale stores
Sales rooms
Residential Group R. Residential Group R includes, among others, the use of
a building or structure, or a portion thereof, for sleeping purposes when not
classed as Institutional Group I. Residential occupancies shall include the
following:
R-1 Residential occupancies where the occupants are primarily transient in
nature including:
Boarding houses (transient)
Hotels (transient)
Motels (transient)
R-2 Residential occupancies containing sleeping units or more than two
dwelling units where the occupants are primarily permanent in nature,
including:
Apartment houses
SBC 801
2007
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DEFINITIONS
Boarding houses (not transient)
Dormitories
Fraternities and sororities
Hotels (nontransient)
Motels (nontransient)
Vacation timeshare properties
R-3 Residential occupancies where the occupancies are primarily permanent in
nature and not classified as R-1, R-2, or I and where buildings do not contain
more than two dwelling units, or adult and child care facilities that provide
accommodations for five or fewer persons of any age for less than 24-hours.
Adult and child care facilities that are within a single-family home are
permitted.
R-4 Residential occupancies shall include buildings arranged for occupancy as
Residential Care/Assisted Living Facilities including more than five but not
more than 16 occupants.
Group R-4 occupancies shall meet the requirements for construction as defined
for Group R-3 except for the height and area limitations provided in Section
3.3.
Storage Group S. Storage Group S occupancy includes, among others, the use
of a building or structure, or a portion thereof, for storage that is not classified
as a hazardous occupancy.
Moderate-hazard storage, Group S-1. Buildings occupied for storage uses
which are not classified as Group S-2 including, but not limited to, storage of
the following:
Aerosols, Level 2 and 3
Aircraft repair hangar
Bags, cloth, burlap and paper
Bamboo and rattan
Baskets
Belting, canvas and leather
Books and paper in rolls or packs
Boots and shoes
Buttons, including cloth covered, pearl or bone
Cardboard and cardboard boxes
Clothing, woolen wearing apparel
Cordage
Furniture
Furs
Glue, mucilage, paste and size
Grain
Horn and combs, other than celluloid
Leather
Linoleum
Lumber
Motor vehicle repair garages (complying with the International Building Code
and containing less than the maximum allowable quantities of hazardous
materials)
Photo engraving
Resilient flooring
Silk
Soap
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2007
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DEFINITIONS
Sugar
Tires, bulk storage of
Tobacco, cigars, cigarettes and snuff
Upholstering and mattress
Wax candles
Low-hazard storage, Group S-2. Includes, among others, buildings used for
the storage of noncombustible materials such as products on wood pallets or in
paper cartons with or without single thickness divisions; or in paper wrappings.
Such products may have a negligible amount of plastic trim such as knobs,
handles, or film wrapping. Storage uses shall include, but not be limited to,
storage of the following:
Aircraft hangar
Asbestos
Cement in bags
Chalk and crayons
Dairy products in nonwaxed coated paper containers
Dry cell batteries
Electrical coils
Electrical motors
Empty cans
Food products
Foods in noncombustible containers
Fresh fruits and vegetables in nonplastic trays or containers
Frozen foods
Glass
Glass bottles, empty or filled with noncombustible liquids
Gypsum board
Inert pigments
Ivory
Metal desks with plastic tops and trim
Metal parts
Metals
Mirrors
Oil-filled and other types of distribution transformers
Parking garages (open or enclosed)
Porcelain and pottery
Stoves
Talc and soap stones
Washers and dryers
Miscellaneous Group U. Buildings and structures of an accessory character
and miscellaneous structures not classified in any specific occupancy shall be
constructed, equipped and maintained to conform to the requirements of the
SBC commensurate with the fire and life hazard incidental to their occupancy.
Group U shall include, but not be limited to, the following:
Agricultural buildings
Aircraft hangar, accessory to a one- or two-family residence (see Section
2B.12.3)
Barns
Carports
Fences more than 1.83 m high
Grain silos, accessory to a residential occupancy
SBC 801
2007
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DEFINITIONS
Greenhouses
Livestock shelters
Private garages
Retaining walls
Sheds
Stables
Tanks
Towers
OCCUPANT LOAD. See Section 8.2.1.
OPEN BURNING. See Section 5A.2.1.
OPEN SYSTEM. The use of a solid or liquid hazardous material involving a
vessel or system that is continuously open to the atmosphere during normal
operations and where vapors are liberated, or the product is exposed to the
atmosphere during normal operations. Examples of open systems for solids and
liquids include dispensing from or into open beakers or containers, dip tank and
plating tank operations.
OPERATING BUILDING. See Section 31.2.1.
OPERATING PRESSURE. The pressure at which a system operates.
ORGANIC COATING. See Section 18.2.1.
ORGANIC PEROXIDE. See Section 37.2.1.
Class I. See Section 37.2.1.
Class II. See Section 37.2.1.
Class III. See Section 37.2.1.
Class IV. See Section 37.2.1.
Class V. See Section 37.2.1.
Unclassified detonable. See Section 37.2.1.
OUTDOOR CONTROL AREA. See Section 25.2.1.
OVERCROWDING. A condition that exists when either there are more people in
a building, structure or portion thereof than have been authorized or posted by the
Building code official, or when the Building code official determines that a threat
exist to the safety of the occupants due to persons sitting and/or standing in
locations that may obstruct or impede the use of aisles, passages, corridors,
stairways, exits or other components of the means of egress.
OWNER. A corporation, firm, partnership, association, organization and any
other group acting as a unit, or a person who has legal title to any structure or
premises with or without accompanying actual possession thereof, and shall
include the duly authorized agent or attorney, a purchaser, devisee, fiduciary and
any person having a vested or contingent interest in the premises in question.
OXIDIZER. See Section 38.2.1.
Class 4. See Section 38.2.1.
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2007
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DEFINITIONS
Class 3. See Section 38.2.1.
Class 2. See Section 38.2.1.
Class 1. See Section 38.2.1.
OXIDIZING GAS. See Section 38.2.1.
OZONE-GAS GENERATOR. See Section 35.2.1.
PANIC HARDWARE. See Section 8.2.1.
PASS-THROUGH. See Section 16.2.1.
PERMISSIBLE EXPOSURE LIMIT (PEL). See Section 25.2.1.
PESTICIDE. See Section 25.2.1.
PHYSICAL HAZARD. See Section 25.2.1.
PLOSOPHORIC MATERIAL. See Section 31.2.1.
PLYWOOD and VENEER MILLS. See Section 17.2.1.
POWERED INDUSTRIAL TRUCK. See Section 5A.2.1.
PRESSURE VESSEL. See Section 25.2.1.
PRIMARY CONTAINMENT. The first level of containment, consisting of the
inside portion of that container which comes into immediate contact on its inner
surface with the material being contained.
PROCESS TRANSFER. See Section 32.2.1.
PROPELLANT. See Section 26.2.1.
PROXIMATE AUDIENCE. See Section 31.2.1.
PUBLIC WAY. See Section 8.2.1.
PYROPHORIC. See Section 39.2.1.
PYROTECHNIC COMPOSITION. See Section 31.2.1.
PYROTECHNIC SPECIAL EFFECT. See Section 31.2.1.
PYROTECHNIC SPECIAL-EFFECT MATERIAL. See Section 31.2.1.
RAILWAY. See Section 31.2.1.
RAMP. See Section 8.2.1.
RAW PRODUCT. See Section 17.2.1.
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2007
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DEFINITIONS
READY BOX. See Section 31.2.1.
RECORD DRAWINGS. See Section 7.2.1.
RECREATIONAL FIRE. See Section 5A.2.1.
REDUCED FLOW VALVE. See Section 35.2.1.
REFINERY. See Section 32.2.1.
REFRIGERANT. See Section 5D.2.1.
REFRIGERATION SYSTEM. See Section 5D.2.1.
REGISTERED DESIGN PROFESSIONAL. An architect or engineer,
registered or licensed to practice professional architecture or engineering, as
defined by the statutory requirements of the professional registration laws of the
state in which the project is to be constructed.
REMOTE EMERGENCY SHUTOFF DEVICE. See Section 32.2.1.
REMOTE SOLVENT RESERVOIR. See Section 32.2.1.
REPAIR GARAGE. See Section 20.2.1.
RESIN APPLICATION AREA. See Section 12.2.1.
RESPONSIBLE PERSON. See Section 24.2.1.
RETAIL DISPLAY AREA. See Section 26.2.1.
ROLL COATING. See Section 12.2.1.
RUBBISH (TRASH). Combustible and noncombustible waste materials,
including residue from the burning of coal, wood, coke or other combustible
material, paper, rags, cartons, tin cans, metals, mineral matter, glass crockery, dust
and discarded refrigerators, and heating, cooking or incinerator-type appliances.
SAFETY CAN. See Section 25.2.1.
SCISSOR STAIR. See Section 8.2.1.
SECONDARY CONTAINMENT. See Section 25.2.1.
SEGREGATED. See Section 25.2.1.
SELF-SERVICE MOTOR FUEL-DISPENSING FACILITY. See Section
20.2.1.
SEMICONDUCTOR FABRICATION FACILITY. See Section 16.2.1.
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2007
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DEFINITIONS
SERVICE CORRIDOR. See Section 16.2.1.
SHELF STORAGE. See Section 21.2.1.
SINGLE-STATION SMOKE ALARM. See Section 7.2.1.
SLEEPING UNIT. See Section 7.2.1.
SMALL ARMS AMMUNITION. See Section 31.2.1.
SMALL ARMS PRIMERS. See Section 31.2.1.
SMOKE ALARM. See Section 7.2.1.
SMOKE DETECTOR. See Section 7.2.1.
SMOKE-PROTECTED ASSEMBLY SEATING. See Section 8.2.1.
SMOKELESS PROPELLANTS. See Section 31.2.1.
SOLID. See Section 25.2.1.
SOLID SHELVING. See Section 21.2.1.
SOLVENT DISTILLATION UNIT. See Section 32.2.1.
SOLVENT OR LIQUID CLASSIFICATIONS. See Section 13.2.1.
Class I solvents. See Section 13.2.1.
Class II solvents. See Section 13.2.1.
Class IIIA solvents. See Section 13.2.1.
Class IIIB solvents. See Section 13.2.1.
Class IV solvents. See Section 13.2.1.
SPECIAL AMUSEMENT BUILDING. A building that is temporary, permanent
or mobile that contains a device or system that conveys passengers or provides a
walkway along, around or over a course in any direction as a form of amusement
arranged so that the egress path is not readily apparent due to visual or audio
distractions or an intentionally confounded egress path, or is not readily available
because of the mode of conveyance through the building or structure.
SPECIAL INDUSTRIAL EXPLOSIVE DEVICE. See Section 31.2.1.
SPRAY AREA. See Section 12.2.1.
SPRAY BOOTH. See Section 12.2.1.
SPRAY ROOM. See Section 12.2.1.
STAIR. See Section 8.2.1.
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2007
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DEFINITIONS
STAIRWAY. See Section 8.2.1.
STAIRWAY, EXTERIOR. See Section 8.2.1.
STAIRWAY, INTERIOR. See Section 8.2.1.
STAIRWAY, SPIRAL. See Section 8.2.1.
STANDPIPE SYSTEM, CLASSES OF. See Section 7.2.1.
Class I system. See Section 7.2.1.
Class II system. See Section 7.2.1.
Class III system. See Section 7.2.1.
STANDPIPE, TYPES OF. See Section 7.2.1.
Automatic dry. See Section 7.2.1.
Automatic wet. See Section 7.2.1.
Manual dry. See Section 7.2.1.
Manual wet. See Section 7.2.1.
Semiautomatic dry. See Section 7.2.1.
STATIC PILES. See Section 17.2.1.
STEEL. Hot- or cold-rolled as defined by the Saudi Building Code.
STORAGE, HAZARDOUS MATERIALS. See Section 25.2.1.
STORY ABOVE GRADE PLANE. Any story having its finished floor surface
entirely above grade plane, except that a basement shall be considered as a story
above grade plane where the finished surface of the floor above the basement is:
1. More than 1.8 m above grade plane;
2. More than 1.8 m above the finished ground level for more than 50 percent
of the total building perimeter; or
3. More than 3.7 m above the finished ground level at any point.
SUPERVISING STATION. See Section 7.2.1.
SUPERVISORY SERVICE. See Section 7.2.1.
SUPERVISORY SIGNAL. See Section 7.2.1.
SUPERVISORY SIGNAL-INITIATING DEVICE. See Section 7.2.1.
SYSTEM. See Section 25.2.1.
TANK. A vessel containing more than 227 L.
TANK, ATMOSPHERIC. See Section 25.2.1.
TANK, PORTABLE. See Section 25.2.1.
TANK, PRIMARY. See Section 32.2.1.
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2007
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DEFINITIONS
TANK, PROTECTED ABOVE GROUND. See Section 32.2.1.
TANK, STATIONARY. See Section 25.2.1.
TANK VEHICLE. See Section 25.2.1.
TENT. See Section 22.2.1.
THEFT RESISTANT. See Section 31.2.1.
THERMAL INSECTICIDAL FOGGING. See Section 15.2.1.
TIMBER AND LUMBER PRODUCTION FACILITIES. See Section 17.2.1.
TIRES, BULK STORAGE OF. See Section 7.2.1.
TOOL. See Section 16.2.1.
TORCH-APPLIED ROOF SYSTEM. See Section 24.2.1.
TOXIC. See Section 35.2.1.
TRANSVERSE FLUE SPACE. See Section 21.2.1.
TRASH. See “Rubbish.”
TROUBLE SIGNAL. See Section 7.2.1.
UNAUTHORIZED DISCHARGE. See Section 25.2.1.
UNSTABLE (REACTIVE) MATERIAL. See Section 41.2.1.
Class 4. See Section 41.2.1.
Class 3. See Section 41.2.1.
Class 2. See Section 41.2.1.
Class 1. See Section 41.2.1.
UNWANTED FIRE: A fire not used for cooking, heating or recreational
purposes or one not incidental to the normal operations of the property.
USE (MATERIAL). See Section 25.2.1.
VALVE-REGULATED LEAD-ACID (VRLA) BATTERY: See Section
5D.2.1.
VAPOR AREA. See Section 12.2.1.
VAPOR PRESSURE. See Section 25.2.1.
VENTED (FLOODED) LEAD-ACID BATTERY. See Section 5D.2.1.
SBC 801
2007
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DEFINITIONS
VISIBLE ALARM NOTIFICATION APPLIANCE. See Section 7.2.1.
WATER-REACTIVE MATERIAL. See Section 42.2.1.
Class 3. See Section 42.2.1.
Class 2. See Section 42.2.1.
Class 1. See Section 42.2.1.
WET-CHEMICAL EXTINGUISHING AGENT. See Section 7.2.1.
WINDER. See Section 8.2.1.
WIRELESS PROTECTION SYSTEM. See Section 7.2.1.
WORKSTATION. See Section 16.2.1.
ZONE. See Section 7.2.1.
SBC 801
2007
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USE AND OCCUPANCY CLASSIFICATION
CHAPTER 2
USE AND OCCUPANCY CLASSIFICATION AND SPECIAL DETAILED
REQUIREMENTS BASED ON USE AND OCCUPANCY
SECTION 2A
USE AND OCCUPANCY CLASSIFICATION
SECTION 2A.1
GENERAL
2A.1.1
Scope. The provisions of this chapter shall control the classification of all
buildings and structures as to use and occupancy.
SECTION 2A.2
CLASSIFICATION
General. Structures or portions of structures shall be classified with respect to
occupancy in one or more of the groups listed below. Structures with multiple uses
shall be classified according to Section 2A.2.3. Where a structure is proposed for a
purpose which is not specifically provided for in SBC 201, such structure shall be
classified in the group which the occupancy most nearly resembles, according to
the fire safety and relative hazard involved.
1. Assembly (see Section 2A.3): Groups A-1, A-2, A-3, A-4 and A-5
2. Business (see Section 2A.4): Group B
3. Educational (see Section 2A.5): Group E
4. Factory and Industrial (see Section 2A.6): Groups F-1 and F-2
5. High Hazard (see Section 2A.7): Groups H-1, H-2, H-3, H-4 and H-5
6. Institutional (see Section 2A.8): Groups I-1, I-2, I-3 and I-4
7. Mercantile (see Section 2A.9): Group M
8. Residential (see Section 2A.10): Groups R-1, R-2, R-3 as applicable in Section
101.2, and R-4
9. Storage (see Section 2A.11): Groups S-1 and S-2
10. Utility and Miscellaneous (see Section 2A.12): Group U
2A.2.1.1
Incidental use areas. Spaces which are incidental to the main occupancy shall be
separated or protected, or both, in accordance with Table 2A.2.1.1 or the building
shall be classified as a mixed occupancy and comply with Section 2A.2.3. Areas
that are incidental to the main occupancy shall be classified in accordance with the
main occupancy of the portion of the building in which the incidental use area is
located.
Exception: Incidental use areas within and serving a dwelling unit are not required
to comply with this section.
2A.2.1.1.1 Separation. Where Table 2A.2.1.1 requires a fire-resistance-rated separation, the
incidental use area shall be separated from the remainder of the building with a fire
barrier. Where Table 2A.2.1.1 permits an automatic fire-extinguishing system
without a fire barrier, the incidental use area shall be separated by construction
capable of resisting the passage of smoke. The partitions shall extend from the
floor to the underside of the fire-resistance-rated floor/ceiling assembly or fireresistance-rated roof/ceiling assembly or to the underside of the floor or roof deck
above. Doors shall be self-closing or automatic-closing upon detection of smoke.
Doors shall not have air transfer openings and shall not be undercut in excess of
the clearance permitted in accordance with NFPA 80.
2A.2.1
SBC 801
2007
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USE AND OCCUPANCY CLASSIFICATION
2A.2.2
2A.2.2.1
Accessory use areas. A fire barrier shall be required to separate accessory use
areas classified as Group H in accordance with Section 2A.2.3.1, and incidental
use areas in accordance with Section 2A.2.1.1. Any other accessory use area shall
not be required to be separated by a fire barrier provided the accessory use area
occupies an area not more than 10 percent of the area of the story in which it is
located and does not exceed the tabular values in Table 5C.3 for the allowable
height or area for such use.
Assembly areas. Accessory assembly areas are not considered separate
occupancies if the floor area is equal to or less than 70 m2. Assembly areas that are
accessory to Group E are not considered separate occupancies. Accessory
educational rooms, multi-purpose halls and auditoriums with occupant loads of
less than 100 are not considered separate occupancies.
TABLE 2A.2.1.1
INCIDENTAL USE AREAS
ROOM OR AREA
Furnace room where any piece of equipment is over
117 kW per hour input
Rooms with any boiler over 103.5 kPa and 7.5 kW
Refrigerant machinery rooms
Parking garage (Section 2B.6.2)
Hydrogen cut-off rooms
SEPARATIONa
1 hour or provide automatic fire-extinguishing system
1 hour or provide automatic fire-extinguishing system
1 hour or provide automatic sprinkler system
2 hours; or 1 hour and provide automatic fireextinguishing system
1hour fire barriers and floor/ceiling assemblies in
Group B, F, H, M, S and U occupancies. 2 hours fire
barriers and floor/ceiling assemblies in Group A, E, I
and R occupancies.
2 hours and automatic sprinkler system
2 hours; or 1 hour and provide automatic fireextinguishing system
Incinerator rooms
Paint shops, not classified as Group H, located in
occupancies other than Group F
Laboratories and vocational shops, not classified as
1 hour or provide automatic fire-extinguishing system
Group H, located in Group E or I-2 occupancies
2
Laundry rooms over 9 m
1 hour or provide automatic fire-extinguishing system
Storage rooms over 9 m2
1 hour or provide automatic fire-extinguishing system
Group I-3 cells equipped with padded surfaces
1 hour
Group I-2 waste and linen collection rooms
1 hour
Waste and linen collection rooms over 9 m2
1 hour or provide automatic fire-extinguishing system
Stationary lead-acid battery systems having a liquid 1hour fire barriers and floor/ceiling assemblies in
capacity of more than 379 liters used for facility
Group B, F, H, M, S and U occupancies. 2 hours fire
standby power, emergency power or uninterrupted
barriers and floor/ceiling assemblies in Group A, E, I
power supplies
and R occupancies
a. Where an automatic fire-extinguishing system is provided, it need only be provided in the incidental use
room or area.
2A.2.3
SBC 801
Mixed occupancies. Where a building is occupied by two or more uses not
included in the same occupancy classification, the building or portion thereof shall
comply with Section 2A.2.3.1 or 2A.2.3.2 or a combination of these sections.
Exceptions:
1. Occupancies separated in accordance with Section 5C.8.
2. Areas of Group H-2, H-3, H-4 or H-5 occupancies shall be separated from any
other occupancy in accordance with Section 2A.2.3.2.
3. Where required by Table 2B.15.3.2, areas of Group H-1, H-2 or H-3
occupancy shall be located in a separate and detached building or structure.
4. Accessory use areas in accordance with Section 2A.2.2.
5. Incidental use areas in accordance with Section 2A.2.1.1.
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USE AND OCCUPANCY CLASSIFICATION
2A.2.3.1
2A.2.3.2
2A.2.4
Non-separated uses. Each portion of the building shall be individually classified
as to use. The required type of construction for the building shall be determined by
applying the height and area limitations for each of the applicable occupancies to
the entire building. The most restrictive type of construction, so determined, shall
apply to the entire building. All other code requirements shall apply to each
portion of the building based on the use of that space except that the most
restrictive applicable provisions of Section 2B.3 and Chapter 7 shall apply to these
non-separated uses. Fire separations are not required between uses, except as
required by other provisions.
Separated uses. Each portion of the building shall be individually classified as to
use and shall be completely separated from adjacent areas by fire barrier walls or
horizontal assemblies or both having a fire-resistance rating determined in
accordance with Table 2A.2.3.2 for uses being separated. Each fire area shall
comply with these code requirements based on the use of that space. Each fire area
shall comply with the height limitations based on the use of that space and the type
of construction classification. In each story, the building area shall be such that the
sum of the ratios of the floor area of each use divided by the allowable area for
each use shall not exceed one.
Exception: Except for Group H and I-2 areas, where the building is equipped
throughout with an automatic sprinkler system, installed in accordance with
Section 7.3.3.1.1, the fire-resistance ratings in Table 2A.2.3.3 shall be reduced by
1 hour but to not less than 1 hour and to not less than that required for floor
construction according to the type of construction.
Spaces used for different purposes. A room or space that is intended to be
occupied at different times for different purposes shall comply with all the
requirements that are applicable to each of the purposes for which the room or
space will be occupied.
SECTION 2A.3
ASSEMBLY GROUP A
2A.3.1
SBC 801
Assembly Group A. Assembly Group A occupancy includes, among others, the
use of a building or structure, or a portion thereof, for the gathering together of
persons for purposes such as civic, social or religious functions, recreation, food or
drink consumption or awaiting transportation. A room or space used for assembly
purposes by less than 50 persons and accessory to another occupancy shall be
included as a part of that occupancy. Assembly areas with less than 70 m2 and
which are accessory to another occupancy according to Section 2A.2.2.1 are not
assembly occupancies. Assembly occupancies which are accessory to Group E in
accordance with Section 2A.2.2 are not considered assembly occupancies.
Educational rooms, multi-purpose halls and auditoriums which are accessory to
mosques in accordance with Section 2A.2.2 and which have occupant loads of less
than 100 shall be classified as A-3.
Assembly occupancies shall include the following:
A-1 Assembly uses, usually with fixed seating, intended for the production and
viewing of the performing arts or motion pictures including, but not limited to:
Motion picture theaters
Symphony and concert halls
Television and radio studios admitting an audience
Theaters
2007
2/3
SBC 801
F-2
H-1
H-2
2007
H-5
-------
F-1
-------
E
---
Bb
---
A-5
4
4
4
4
4
1
3
1
1
NP
2
1
1
-----------------
A-4
2
2
2
2
2
1
2
1
1
NP
2
1
-------------------
A-3
--2
2
2
2
2
2
3
2
NP
4
3
A-1
----2
2
2
2
2
3
2
NP
4
3
A-2e
------2
2
2
2
3
2
NP
4
3
A-3
--------2
2
2
3
2
NP
4
3
A-4
----------2
2
3
2
NP
4
3
A-5
------------2
3
2
NP
2
1
Bb
--------------3
2
NP
4
3
E
----------------3
NP
2
1
F-1
------------------NP
2
1
F-2
--------------------NP
NP
H-1
----------------------1
H-2
------------------------H-3
------------------------H-4
------------------------H-5
------------------------I-1
------------------------I-2
------------------------I-3
------------------------I-4
------------------------Mb
------------------------R-1
------------------------R-2
R3, R------------------------4
------------------------S-1
------------------------S-2c
------------------------U
NP = Not permitted.
a.
See Exception 1 to Section 2A.2.3.2 for reductions permitted.
b.
Occupancy separation need not be provided for storage areas within Groups B and M if the:
1. Area is less than 10 percent of the floor area;
2. Area is provided with an automatic fire-extinguishing system and is less than 279 m2; or
3. Area is less than 93 m2.
c.
Areas used only for private or pleasure vehicles shall be allowed to reduce separation by 1 hour.
d.
See exception to Section 2A.2.3.2.
e.
Commercial kitchens need not be separated from the restaurant seating areas that they serve.
A-2
H-4
A-1
H-3
USE
-------
---
2
2
2
2
2
2
2
3
2
NP
4
4
4
4
---------------
I-1
-------
---
2
2
2
2
2
2
2
3
2
NP
4
3
4
4
2
-------------
I-2
-------
---
2
2
2
2
2
2
2
3
2
NP
4
3
4
4
2
2
-----------
I-3
TABLE 2A.2.3.2
REQUIRED SEPARATION OF OCCUPANCIES (HOURS)a
-------
---
2
2
2
2
2
2
2
3
2
NP
4
3
4
3
2
2
2
---------
I-4
-------
---
2
2
2
2
2
2
2
3
2
NP
2
1
1
1
2
2
2
2
-------
Mb
-------
---
2
2
2
2
2
2
2
3
2
NP
4
3
4
4
2
2
2
2
2
-----
R-1
2/4
-------
---
2
2
2
2
2
2
2
3
2
NP
4
3
4
4
2
2
2
2
2
2
---
R-2
-------
---
R-3, R4
2
2
2
2
2
2
2
3
2
NP
4
3
4
4
2
2
2
2
2
2
2
-------
3
3
3
3
3
3
3
3
3
3
NP
2
1
1
1
4
3
3
3
3
3
3
S-1
3
-----
2d
2
2
2
2
2
2
2
3
2
NP
2
1
1
1
3
2
2
2
2
2
2
S-2c
3
1
---
1d
1
1
1
1
1
1
1
3
1
NP
1
1
1
3
2
1
1
1
1
1
1
U
USE AND OCCUPANCY CLASSIFICATION
2A.3.1.1
A-2 Assembly uses intended for food and/or drink consumption including, but
not limited to:
Banquet halls
Restaurants
Cafes
A-3 Assembly uses intended for worship, recreation or amusement and other
assembly uses not classified elsewhere in Group A including, but not limited to:
Amusement arcades
Art galleries
Bowling alleys
Mosques
Community halls
Courtrooms
Dance halls (not including food or drink consumption)
Exhibition halls
Funeral centers
Gymnasiums (without spectator seating)
Indoor swimming pools (without spectator seating)
Indoor tennis courts (without spectator seating)
Lecture halls
Libraries
Museums
Waiting areas in transportation terminals
Pool and billiard parlors
A-4 Assembly uses intended for viewing of indoor sporting events and activities
with spectator seating including, but not limited to:
Arenas
Skating rinks
Swimming pools
Tennis courts
A-5 Assembly uses intended for participation in or viewing outdoor activities
including, but not limited to:
Amusement park structures
Bleachers
Grandstands
Stadiums
Non-accessory assembly use. A building or tenant space used for assembly
purposes by less than 50 persons shall be considered a Group B occupancy.
SECTION 2A.4
BUSINESS GROUP B
2A.4.1
SBC 801
Business Group B. Business Group B occupancy includes, among others, the use
of a building or structure, or a portion thereof, for office, professional or servicetype transactions, including storage of records and accounts. Business occupancies
shall include, but not be limited to, the following:
Airport traffic control towers
Animal hospitals, kennels and pounds
Banks
Barber and beauty shops
Car wash
Civic administration
2007
2/5
USE AND OCCUPANCY CLASSIFICATION
Clinic – outpatient
Dry cleaning and laundries; pick-up and delivery stations and self-service
Educational occupancies above the 12th grade for male/female
Electronic data processing
Laboratories; testing and research
Motor vehicle showrooms
Post offices
Print shops
Professional services (architects, attorneys, dentists, physicians, engineers, etc.)
Radio and television stations
Telephone exchanges
SECTION 2A.5
EDUCATIONAL GROUP E
2A.5.1
Educational Group E. Educational Group E occupancy includes, among others,
the use of a building or structure, or a portion thereof, by six or more persons at
any one time for educational purposes through the 12th grade. Educational rooms,
multi-purpose halls and auditoriums, which are accessory to mosques in
accordance with Section 2A.2.2 and have occupant loads of less than 100, shall be
classified as A-3 occupancies.
2A.5.2
Day care. The use of a building or structure, or portion thereof, for educational,
supervision or personal care services for more than five children older than 21/2
years of age, shall be classified as a Group E occupancy.
SECTION 2A.6
FACTORY GROUP F
2A.6.1
Factory Industrial Group F. Factory Industrial Group F occupancy includes,
among others, the use of a building or structure, or a portion thereof, for
assembling, disassembling, fabricating, finishing, manufacturing, packaging,
repair or processing operations that are not classified as a Group H hazardous or
Group S storage occupancy.
2A.6.2
Factory Industrial F-1 Moderate-Hazard Occupancy. Factory industrial uses
which are not classified as Factory Industrial F-2 Low Hazard shall be classified as
F-1 Moderate Hazard and shall include, but not be limited to, the following:
Aircraft
Appliances
Athletic equipment
Automobiles and other motor vehicles
Bakeries
Medical products over 12-percent alcohol content
Bicycles
Boats
Brooms or brushes
Business machines
Cameras and photo equipment
Canvas or similar fabric
Carpets and rugs (includes cleaning)
Clothing
SBC 801
2007
2/6
USE AND OCCUPANCY CLASSIFICATION
Construction and agricultural machinery
Disinfectants
Dry cleaning and dyeing
Electric generation plants
Electronics
Engines (including rebuilding)
Food processing
Furniture
Hemp products
Jute products
Laundries
Leather products
Machinery
Metals
Millwork (sash & door)
Motion pictures and television filming (without spectators)
Musical instruments
Optical goods
Paper mills or products
Photographic film
Plastic products
Printing or publishing
Recreational vehicles
Refuse incineration
Shoes
Soaps and detergents
Textiles
Tobacco
Trailers
Upholstering
Wood; distillation
Woodworking (cabinet)
2A.6.3
Factory Industrial F-2 Low-Hazard Occupancy. Factory industrial uses that
involve the fabrication or manufacturing of noncombustible materials which
during finishing, packing or processing do not involve a significant fire hazard
shall be classified as F-2 occupancies and shall include, but not be limited to, the
following:
Medical products; up to and including 12-percent alcohol content
Brick and masonry
Ceramic products
Foundries
Glass products
Gypsum
Ice
Metal products (fabrication and assembly)
SECTION 2A.7
HIGH-HAZARD GROUP H
2A.7.1
SBC 801
High-Hazard Group H. High-Hazard Group H occupancy includes, among
others, the use of a building or structure, or a portion thereof, that involves the
2007
2/7
USE AND OCCUPANCY CLASSIFICATION
manufacturing, processing, generation or storage of materials that constitute a
physical or health hazard in quantities in excess of those found in Tables 5A.7.7(1)
and 5A.7.7(2) (see also definition of “Control area”).
2A.7.2
Definitions. The following words and terms shall, for the purposes of this section
and as used elsewhere in these code requirements, have the meanings shown
herein.
AEROSOL. A product that is dispensed from an aerosol container by a propellant.
Aerosol products shall be classified by means of the calculation of their chemical
heats of combustion and shall be designated Level 1, 2 or 3.
Level 1 aerosol products. Those with a total chemical heat of combustion that
is less than or equal to 20 kJ/g.
Level 2 aerosol products. Those with a total chemical heat of combustion that
is greater than 20 kJ/g, but less than or equal to 30 kJ/g.
Level 3 aerosol products. Those with a total chemical heat combustion that is
greater than 30 kJ/g.
AEROSOL CONTAINER. A metal can or a glass or plastic bottle designed to
dispense an aerosol. Metal cans shall be limited to a maximum size of 1,000 ml.
Glass or plastic bottles shall be limited to a maximum size of 118 ml.
BARRICADE. A structure that consists of a combination of walls, floor and roof,
which is designed to withstand the rapid release of energy in an explosion and
which is fully confined, partially vented or fully vented; or other effective method
of shielding from explosive materials by a natural or artificial barrier.
Artificial barricade. An artificial mound or revetment a minimum thickness
of 914 mm.
Natural barricade. Natural features of the ground, such as hills, or timber of
sufficient density that the surrounding exposures that require protection cannot
be seen from the magazine or building containing explosives when the trees
are bare of leaves.
BOILING POINT. The temperature at which the vapor pressure of a liquid
equals the atmospheric pressure of 101 kPa gage or 760 mm of mercury. Where an
accurate boiling point is unavailable for the material in question, or for mixtures,
which do not have a constant boiling point, for the purposes of this classification,
the 20-percent evaporated point of a distillation performed in accordance with
ASTM D 86, shall be used as the boiling point of the liquid.
CLOSED SYSTEM. The use of a solid or liquid hazardous material involving a
closed vessel or system that remains closed during normal operations where
vapors emitted by the product are not liberated outside of the vessel or system and
the product is not exposed to the atmosphere during normal operations; and all
uses of compressed gases. Examples of closed systems for solids and liquids
include product conveyed through a piping system into a closed vessel, system or
piece of equipment.
SBC 801
COMBUSTIBLE DUST. Finely divided solid material that is 420 microns or less
in diameter and which, when dispersed in air in the proper proportions, could be
ignited by a flame, spark or other source of ignition. Combustible dust will pass
through a U.S. No. 40 standard sieve.
2007
2/8
USE AND OCCUPANCY CLASSIFICATION
COMBUSTIBLE FIBERS. Readily ignitable and free-burning fibers, such as
cocoa fiber, cloth, cotton, excelsior, hay, hemp, henequen, istle, jute, kapok,
oakum, rags, sisal, Spanish moss, straw, tow, wastepaper or other like materials.
COMBUSTIBLE LIQUID. A liquid having a closed cup flash point at or above
38°C. Combustible liquids shall be subdivided as follows:
Class II. Liquids having a closed cup flash point at or above 38°C and below
60°C.
Class IIIA. Liquids having a closed cup flash point at or above 60°C and
below 93°C.
Class IIIB. Liquids having a closed cup flash point at or above 93°C.
The category of combustible liquids does not include compressed gases or
cryogenic fluids.
COMPRESSED GAS. A material, or mixture of materials which:
1. Is a gas at 20°C or less at 101 kPa of pressure; and
2. Has a boiling point of 20°C or less at 101 kPa which is either liquefied,
non-liquefied or in solution, except those gases which have no other health
or physical-hazard properties are not considered to be compressed until the
pressure in the packaging exceeds 282 kPa at 20°C.
The states of a compressed gas are categorized as follows:
1. Non-liquefied compressed gases are gases, other than those in solution,
which are in a packaging under the charged pressure and are entirely
gaseous at a temperature of 20°C.
2. Liquefied compressed gases are gases that, in a packaging under the
charged pressure, are partially liquid at a temperature of 20°C.
3. Compressed gases in solution are non-liquefied gases that are dissolved in
a solvent.
4. Compressed gas mixtures consist of a mixture of two or more compressed
gases contained in a packaging, the hazard properties of which are
represented by the properties of the mixture as a whole.
CONTROL AREA. Spaces within a building that are enclosed and bounded by
exterior walls, fire walls, fire barriers and roofs, or a combination thereof, where
quantities of hazardous materials not exceeding the maximum allowable quantities
per control area are stored, dispensed, used or handled.
CORROSIVE. A chemical that causes visible destruction of, or irreversible
alterations in, living tissue by chemical action at the point of contact. A chemical
shall be considered corrosive if, when tested on the intact skin of albino rabbits by
the method described in DOTn 49 CFR, Part 173.137, such a chemical destroys or
changes irreversibly the structure of the tissue at the point of contact following an
exposure period of 4 hours. This term does not refer to action on inanimate
surfaces.
CRYOGENIC FLUID. A liquid having a boiling point lower than 101°C at an
absolute pressure of 101 kPa.
SBC 801
DEFLAGRATION. An exothermic reaction, such as the extremely rapid
oxidation of a flammable dust or vapor in air, in which the reaction progresses
through the unburned material at a rate less than the velocity of sound. A
2007
2/9
USE AND OCCUPANCY CLASSIFICATION
deflagration can have an explosive effect.
DETACHED BUILDING. A separate single-story building, without a basement
or crawl space, used for the storage or use of hazardous materials and located an
approved distance from all structures.
DETONATION. An exothermic reaction characterized by the presence of a shock
wave in the material which establishes and maintains the reaction. The reaction
zone progresses through the material at a rate greater than the velocity of sound.
The principal heating mechanism is one of shock compression. Detonations have
an explosive effect.
DISPENSING. The pouring or transferring of any material from a container, tank
or similar vessel, whereby vapors, dusts, fumes, mists or gases are liberated to the
atmosphere.
EXPLOSIVE. Any chemical compound, mixture or device, the primary or
common purpose of which is to function by explosion. The term includes, but is
not limited to, dynamite, black powder, pellet powder, initiating explosives,
detonators, safety fuses, squibs, detonating cord, igniter cord, igniters and display
fireworks, 1.3G (Class B, Special). The term “explosive” includes any material
determined to be within the scope of USC Title 18: Chapter 40 and also includes
any material classified as an explosive other than consumer fireworks, 1.4G (Class
C, Common) by the hazardous materials regulations of DOTn 49 CFR.
High explosive. Explosive material, such as dynamite, which can be caused to
detonate by means of a No. 8 test blasting cap when unconfined.
Low explosive. Explosive material that will burn or deflagrate when ignited. It
is characterized by a rate of reaction that is less than the speed of sound.
Examples of low explosives include, but are not limited to, black powder;
safety fuse; igniters; igniter cord; fuse lighters; fireworks, 1.3G (Class B,
Special) and propellants, 1.3C.
Mass-detonating explosives. Divisions 1.1, 1.2 and 1.5 explosives alone or in
combination, or loaded into various types of ammunition or containers, most of
which can be expected to explode virtually instantaneously when a small
portion is subjected to fire, severe concussion, impact, the impulse of an
initiating agent or the effect of a considerable discharge of energy from
without. Materials that react in this manner represent a mass explosion hazard.
Such an explosive will normally cause severe structural damage to adjacent
objects. Explosive propagation could occur immediately to other items of
ammunition and explosives stored sufficiently close to and not adequately
protected from the initially exploding pile with a time interval short enough so
that two or more quantities must be considered as one for quantity-distance
purposes.
SBC 801
MOI (UN/DOTn) Class 1 explosive. The former classification system used by
DOTn included the terms “high” and “low” explosives as defined herein. The
following terms further define explosives under the current system applied by
(DOTn for all explosive materials defined as hazard Class 1 materials).
Compatibility group letters are used in concert with the division to specify further
limitations on each division noted (i.e., the letter G identifies the material as a
pyrotechnic substance or article containing a pyrotechnic substance and similar
materials).
2007
2/10
USE AND OCCUPANCY CLASSIFICATION
Division 1.1. Explosives that have a mass explosion hazard. A mass explosion
is one which affects almost the entire load instantaneously.
Division 1.2. Explosives that have a projection hazard but not a mass
explosion hazard.
Division 1.3. Explosives that have a fire hazard and either a minor blast hazard
or a minor projection hazard or both, but not a mass explosion hazard.
Division 1.4. Explosives that pose a minor explosion hazard. The explosive
effects are largely confined to the package and no projection of fragments of
appreciable size or range is to be expected. An external fire must not cause
virtually instantaneous explosion of almost the entire contents of the package.
Division 1.5. Very insensitive explosives. This division is comprised of
substances that have a mass explosion hazard, but that are so insensitive there
is very little probability of initiation or of transition from burning to detonation
under normal conditions of transport.
Division 1.6. Extremely insensitive articles which do not have a mass
explosion hazard. This division is comprised of articles that contain only
extremely insensitive detonating substances and which demonstrate a
negligible probability of accidental initiation or propagation.
FIREWORKS. Any composition or device for the purpose of producing a visible
or audible effect for entertainment purposes by combustion, deflagration or
detonation that meets the definition of 1.4G fireworks or 1.3G fireworks as set
forth herein.
FIREWORKS, 1.3G. (Formerly Class B, Special Fireworks.) Large fireworks
devices, which are explosive materials, intended for use in fireworks displays and
designed to produce audible or visible effects by combustion, deflagration or
detonation. Such 1.3G fireworks include, but are not limited to, firecrackers
containing more than 130 milligrams (2 grains) of explosive composition, aerial
shells containing more than 40 grams of pyrotechnic composition, and other
display pieces which exceed the limits for classification as 1.4G fireworks. Such
1.3G fireworks are also described as fireworks, 49 CFR (172) by the DOTn.
FIREWORKS, 1.4G. (Formerly Class C, Common Fireworks.) Small fireworks
devices containing restricted amounts of pyrotechnic composition designed
primarily to produce visible or audible effects by combustion. Such 1.4G
fireworks which comply with the construction, chemical composition and labeling
regulations of the DOTn, 49 CFR (172) for fireworks, and the local Consumer
Product Safety Commission (CPSC) as set forth in CPSC 16 CFR: Parts 1500 and
1507 are not explosive materials for the purpose of these code requirements.
FLAMMABLE GAS. A material that is a gas at 20°C or less at 101 kPa of
pressure [a material that has a boiling point of 20°C or less at 101 kPa)] which:
1. Is ignitable at 101 kPa when in a mixture of 13 percent or less by volume
with air; or
2. Has a flammable range at 101 kPa with air of at least 12 percent, regardless
of the lower limit.
The limits specified shall be determined at 101 kPa of pressure and a
temperature of 20°C in accordance with (ASTM E 681).
SBC 801
FLAMMABLE LIQUEFIED GAS. A liquefied compressed gas which, under a
charged pressure, is partially liquid at a temperature of 20°C and which is
2007
2/11
USE AND OCCUPANCY CLASSIFICATION
flammable.
FLAMMABLE LIQUID. A liquid having a closed cup flash point below 38°C.
Flammable liquids are further categorized into a group known as Class I liquids.
The Class I category is subdivided as follows:
Class IA. Liquids having a flash point below 23°C and a boiling point below
38°C.
Class IB. Liquids having a flash point below 23°C and a boiling point at or
above 38°C.
Class IC. Liquids having a flash point at or above 23°C and below 38°C.
The category of flammable liquids does not include compressed gases or
cryogenic fluids.
FLAMMABLE MATERIAL. A material capable of being readily ignited from
common sources of heat or at a temperature of 316°C or less.
FLAMMABLE SOLID. A solid, other than a blasting agent or explosive, that is
capable of causing fire through friction, absorption or moisture, spontaneous
chemical change, or retained heat from manufacturing or processing, or which has
an ignition temperature below 100°C or which burns so vigorously and
persistently when ignited as to create a serious hazard. A chemical shall be
considered a flammable solid as determined in accordance with the test method of
CPSC 16 CFR; Part 1500.44, if it ignites and burns with a self-sustained flame at a
rate greater than 2.5 mm per second along its major axis.
FLASH POINT. The minimum temperature in degrees Fahrenheit at which a
liquid will give off sufficient vapors to form an ignitable mixture with air near the
surface or in the container, but will not sustain combustion. The flash point of a
liquid shall be determined by appropriate test procedure and apparatus as specified
in ASTM D 56, ASTM D 93 or ASTM D 3278.
HANDLING. The deliberate transport by any means to a point of storage or use.
HAZARDOUS MATERIALS. Those chemicals or substances that are physical
hazards or health hazards as defined and classified in this section and these code
requirements, whether the materials are in usable or waste condition.
HEALTH HAZARD. A classification of a chemical for which there is
statistically significant evidence that acute or chronic health effects are capable of
occurring in exposed persons. The term “health hazard” includes chemicals that
are toxic or highly toxic, and corrosive.
SBC 801
HIGHLY TOXIC. A material which produces a lethal dose or lethal
concentration that falls within any of the following categories:
1. A chemical that has a median lethal dose (LD50) of 50 milligrams or less
per kilogram of body weight when administered orally to albino rats
weighing between 200 and 300 grams each.
2. A chemical that has a median lethal dose (LD50) of 200 milligrams or less
per kilogram of body weight when administered by continuous contact for
24 hours (or less if death occurs within 24 hours) with the bare skin of
albino rabbits weighing between 2 and 3 kilograms each.
3. A chemical that has a median lethal concentration (LC50) in air of 200 parts
2007
2/12
USE AND OCCUPANCY CLASSIFICATION
per million by volume or less of gas or vapor, or 2 milligrams per liter or
less of mist, fume or dust, when administered by continuous inhalation for
1 hour (or less if death occurs within 1 hour) to albino rats weighing
between 200 and 300 grams each.
Mixtures of these materials with ordinary materials, such as water, might not
warrant classification as highly toxic. While this system is basically simple in
application, any hazard evaluation that is required for the precise
categorization of this type of material shall be performed by experienced,
technically competent persons.
INCOMPATIBLE MATERIALS. Materials that, when mixed, have the
potential to react in a manner that generates heat, fumes, gases or by-products
which are hazardous to life or property.
OPEN SYSTEM. The use of a solid or liquid hazardous material involving a
vessel or system that is continuously open to the atmosphere during normal
operations and where vapors are liberated, or the product is exposed to the
atmosphere during normal operations. Examples of open systems for solids and
liquids include dispensing from or into open beakers or containers, dip tank and
plating tank operations.
OPERATING BUILDING. A building occupied in conjunction with the
manufacture, transportation or use of explosive materials. Operating buildings are
separated from one another with the use of intraplant or intraline distances.
ORGANIC PEROXIDE. An organic compound that contains the bivalent
structure and which may be considered to be a structural derivative of hydrogen
peroxide where one or both of the hydrogen atoms have been replaced by an
organic radical. Organic peroxides can pose an explosion hazard (detonation or
deflagration) or they can be shock sensitive. They can also decompose into various
unstable compounds over an extended period of time.
Class I. Those formulations that are capable of deflagration but not detonation.
Class II. Those formulations that burn very rapidly and that pose a moderate
reactivity hazard.
Class III. Those formulations that burn rapidly and that pose a moderate
reactivity hazard.
Class IV. Those formulations that burn in the same manner as ordinary
combustibles and that pose a minimal reactivity hazard.
Class V. Those formulations that burn with less intensity than ordinary
combustibles or do not sustain combustion and that pose no reactivity hazard.
Unclassified detonable. Organic peroxides that are capable of detonation.
These peroxides pose an extremely high explosion hazard through rapid
explosive decomposition.
SBC 801
OXIDIZER. A material that readily yields oxygen or other oxidizing gas, or that
readily reacts to promote or initiate combustion of combustible materials.
Examples of other oxidizing gases include bromine, chlorine and fluorine.
Class 4. An oxidizer that can undergo an explosive reaction due to
contamination or exposure to thermal or physical shock. Additionally, the
oxidizer will enhance the burning rate and can cause spontaneous ignition of
combustibles.
Class 3. An oxidizer that will cause a severe increase in the burning rate of
2007
2/13
USE AND OCCUPANCY CLASSIFICATION
combustible materials with which it comes in contact or that will undergo
vigorous self-sustained decomposition due to contamination or exposure to
heat.
Class 2. An oxidizer that will cause a moderate increase in the burning rate or
that causes spontaneous ignition of combustible materials with which it comes
in contact.
Class 1. An oxidizer whose primary hazard is that it slightly increases the
burning rate but which does not cause spontaneous ignition when it comes in
contact with combustible materials.
OXIDIZING GAS. A gas that can support and accelerate combustion of other
materials.
PHYSICAL HAZARD. A chemical for which there is evidence that it is a
combustible liquid, compressed gas, cryogenic, explosive, flammable gas,
flammable liquid, flammable solid, organic peroxide, oxidizer, pyrophoric or
unstable (reactive) or water-reactive material.
PYROPHORIC. A chemical with an auto-ignition temperature in air, at or below
a temperature of 54°C.
PYROTECHNIC COMPOSITION. A chemical mixture that produces visible
light displays or sounds through a self-propagating, heat-releasing chemical
reaction which is initiated by ignition.
TOXIC. A chemical falling within any of the following categories:
1. A chemical that has a median lethal dose (LD50) of more than 50 milligrams
per kilogram, but not more than 500 milligrams per kilogram of body weight
when administered orally to albino rats weighing between 200 and 300
grams each.
2. A chemical that has a median lethal dose (LD50) of more than 200 milligrams
per kilogram but not more than 1,000 milligrams per kilogram of body
weight when administered by continuous contact for 24 hours (or less if
death occurs within 24 hours) with the bare skin of albino rabbits weighing
between 2 and 3 kilograms each.
3. A chemical that has a median lethal concentration (LC50) in air of more than
200 parts per million but not more than 2,000 parts per million by volume of
gas or vapor, or more than 2 milligrams per liter but not more than 20
milligrams per liter of mist, fume or dust, when administered by continuous
inhalation for 1 hour (or less if death occurs within 1 hour) to albino rats
weighing between 200 and 300 grams each.
SBC 801
UNSTABLE (REACTIVE) MATERIAL. A material, other than an explosive,
which in the pure state or as commercially produced, will vigorously polymerize,
decompose, condense or become self-reactive and undergo other violent chemical
changes, including explosion, when exposed to heat, friction or shock, or in the
absence of an inhibitor, or in the presence of contaminants, or in contact with
incompatible materials. Unstable (reactive) materials are subdivided as follows:
Class 4. Materials that in themselves are readily capable of detonation or
explosive decomposition or explosive reaction at normal temperatures and
pressures. This class includes materials that are sensitive to mechanical or
localized thermal shock at normal temperatures and pressures.
2007
2/14
USE AND OCCUPANCY CLASSIFICATION
Class 3. Materials that in themselves are capable of detonation or of explosive
decomposition or explosive reaction but which require a strong initiating
source or which must be heated under confinement before initiation. This class
includes materials that are sensitive to thermal or mechanical shock at elevated
temperatures and pressures.
Class 2. Materials that in themselves are normally unstable and readily
undergo violent chemical change but do not detonate. This class includes
materials that can undergo chemical change with rapid release of energy at
normal temperatures and pressures, and that can undergo violent chemical
change at elevated temperatures and pressures.
Class 1. Materials that in themselves are normally stable but which can
become unstable at elevated temperatures and pressure.
WATER-REACTIVE MATERIAL. A material that explodes; violently reacts;
produces flammable, toxic or other hazardous gases; or evolves enough heat to
cause self-ignition or ignition of nearby combustibles upon exposure to water or
moisture. Water-reactive materials are subdivided as follows:
Class 3. Materials that react explosively with water without requiring heat or
confinement.
Class 2. Materials that may form potentially explosive mixtures with water.
Class 1. Materials that may react with water with some release of energy, but
not violently.
2A.7.3
High-Hazard Group H-1. Buildings and structures which contain materials that
present a detonation hazard shall be classified as Group H-1. Such materials shall
include, but not be limited to, the following:
Explosives:
Division 1.1
Division 1.2
Division 1.3
Exception: Materials that are used and maintained in a form where either
confinement or configuration will not elevate the hazard from a mass fire to mass
explosion hazard shall be allowed in H-2 occupancies.
Division 1.4
Exception: Articles, including articles packaged for shipment, that are not
regulated as an explosive under Bureau of Alcohol, Tobacco and Firearms
regulations, or unpackaged articles used in process operations that do not
propagate a detonation or deflagration between articles shall be allowed in H-3
occupancies.
Division 1.5
Division 1.6
Organic peroxides, unclassified detonable
Oxidizers, Class 4
Unstable (reactive) materials, Class 3 detonable, and Class 4
Detonable pyrophoric materials
2A.7.4
High-Hazard Group H-2. Buildings and structures which contain materials that
present a deflagration hazard or a hazard from accelerated burning shall be
classified as Group H-2. Such materials shall include, but not be limited to, the
following:
Class I, II or IIIA flammable or combustible liquids which are used or stored in
normally open containers or systems, or in closed containers or systems
SBC 801
2007
2/15
USE AND OCCUPANCY CLASSIFICATION
pressurized at more than 103.4 kPa gage
Combustible dusts
Cryogenic fluids, flammable
Flammable gases
Organic peroxides, Class I
Oxidizers, Class 3, that are used or stored in normally open containers or systems,
or in closed containers or systems pressurized at more than 1,03.3 kPa gage
Pyrophoric liquids, solids and gases, non-detonable
Unstable (reactive) materials, Class 3, non-detonable
Water-reactive materials, Class 3
2A.7.5
High-Hazard Group H-3. Buildings and structures that contain materials that
readily support combustion or present a physical hazard shall be classified as
Group H-3. Such materials shall include, but not be limited to, the following:
Class I, II or IIIA flammable or combustible liquids which are used or stored in
normally closed containers or systems pressurized at less than 103 kPa gage
Combustible fibers
Consumer fireworks, 1.4G (Class C, Common)
Cryogenic fluids, oxidizing
Flammable solids
Organic peroxides, Classes II and III
Oxidizers, Classes 1 and 2
Oxidizing gases
Unstable (reactive) materials, Class 2
Water-reactive materials, Class 2
2A.7.6
High-Hazard Group H-4. Buildings and structures which contain materials that
are health hazards shall be classified as Group H-4. Such materials shall include,
but not be limited to, the following:
Corrosives
Highly toxic materials
Toxic materials
2A.7.7
Group H-5 structures. Semiconductor fabrication facilities and comparable
research and development areas in which hazardous production materials (HPM)
are used and the aggregate quantity of materials is in excess of those listed in
Tables 2A.7.7(1) and 2A.7.7(2). Such facilities and areas shall be designed and
constructed in accordance with Section 2B.15.9.
2A.7.8
Multiple hazards. Buildings and structures containing a material or materials
representing hazards that are classified in one or more of Groups H-1, H-2, H-3
and H-4 shall conform to the code requirements for each of the occupancies so
classified.
2A.7.9
Exceptions: The following shall not be classified in Group H, but shall be
classified in the occupancy which they most nearly resemble. Hazardous materials
in any quantity shall conform to the requirements of SBC 201, including Section
2B.14, and these code requirements:
1. Buildings and structures that contain not more than the maximum allowable
quantities per control area of hazardous materials as shown in Tables
2A.7.7(1) and 2A.7.7(2) provided that such buildings are maintained in
accordance with these code requirements.
SBC 801
2007
2/16
USE AND OCCUPANCY CLASSIFICATION
2. Buildings utilizing control areas in accordance with Section 2B.14.2 that
contain not more than the maximum allowable quantities per control area of
hazardous materials as shown in Tables 2A.7.7(1) and 2A.7.7(2).
3. Buildings and structures occupied for the application of flammable finishes,
provided that such buildings or areas conform to the requirements of Section
2B16 and these code requirements.
4. Wholesale and retail sales and storage of flammable and combustible liquids
in mercantile occupancies conforming to these code requirements.
5. Closed systems housing flammable or combustible liquids or gases utilized for
the operation of machinery or equipment.
SBC 801
2007
2/17
Organic peroxide
Flammable solid
Combination
Flammable liquid
(IA, IB, IC)
Flammable liquidsc
Flammable gas
Explosives
Cryogenic
Flammable
Consumer fireworks
(Class C Common)
Cryogenic
Oxidizing
Combustible fiber
Combustible
liquidc, i
MATERIAL
Not
Applicable
UD
I
II
III
IV
V
Not
Applicable
Not
Applicable
Division 1.1
Division 1.2
Division 1.3
Division 1.4
Division 1.4G
Division 1.5
Division 1.6
Gaseous
Liquefied
IA
IB and IC
1.4G
CLASS
II
IIIA
IIIB
Loose
Baled
Not
Applicable
0.45e, f
2.3d, e
22.7d, e
56.8d, e
Not limited
Not limited
H-1
H-2
H-3
H-3
Not Applicable
Not Applicable
SBC 801
54.5d, e
Not
Applicable
Not
Applicable
0.45e, g
0.45e, g
2.3e, g
22.7e, g
56.8d, e, l
0.45e, g
0.45d, e, g
Not
Applicable
Not
Applicable
56.8d, e, l
(2.8)
(28)
Not
Applicable
Not
Applicable
Solid kgs
(cubic
meters)
H-3
H2 or H-3
H-2 or H-3
H-2
H-1
H-1
H-1 or H-2
H-3
H-3
H-1
H-1
H-3
H-3
H-2
H-3
GROUP WHEN
THE MAXIMUM
ALLOWABLE
QUANTITY IS
EXCEEDED
H-2 or H-3
H-2 or H-3
Not Applicable
Not
Applicable
(0.45)e, g
(2.3)d, e
(22.7)d, e
(56.8)d, e
Not limited
Not limited
454d, e, h
e, g
(0.45)
(0.45)e, g
(2.3)e, g
(22.7)e, g
Not Applicable
(0.45)e, g
Not Applicable
Not Applicable
114d, e
114d, e
454d, e
170d
Not
Applicable
170d
Liquid liters
(kgs)
454d, e
1,249d, e
49,962e, f
Not
Applicable
STORAGEb
2007
(continued)
Not
Applicable
Not
Applicable
0.114g
0.45d
22.7d
56.8d
Not limited
Not limited
56.8d
Not
Applicable
Not
Applicable
Not
Applicable
28d, e
Not Applicable
Not
Applicable
Not
Applicable
Solid kgs
(cubic meters)
(2.8)
(28)
Not
Applicable
Not
Applicable
Not
Applicable
0.114g
0.114g
0.45g
22.7g
Not Applicable
0.114g
Not Applicable
Not
Applicable
Not
Applicable
Not
Applicable
Not
Applicable
Not
Applicable
Not
Applicable
Not
Applicable
Gas cubic
meters at NTP
g
Not
Applicable
(0.114)g
(0.45)
(22.7)d
(56.8)d
Not limited
Not limited
454d, h
(0.114)
(0.114)g
(0.45)g
(22.7)g
Not Applicable
(0.114)g
Not Applicable
Not Applicable
114d, e
114d
454d
170d
Not
Applicable
170d
Liquid liters
(kgs)
454d
1,249d
49,962e,f
Not
Applicable
2/18
Not
Applicable
Not
Applicable
Not
Applicable
28d, e
Not Applicable
Not
Applicable
Not
Applicable
Not
Applicable
Not
Applicable
Not
Applicable
Not
Applicable
Not
Applicable
Gas cubic meters
at NTP
USE-CLOSED SYSTEMSb
0.114g
0.45d
4.5d
11.4d
Not limited
Not limited
11.4d
Not
Applicable
(0.57)
(5.7)
Not
Applicable
Not
Applicable
Not
Applicable
0.114g
0.114g
0.45g
Not Applicable
Not Applicable
0.114g
Not Applicable
Not
Applicable
Not
Applicable
Not
Applicable
Solid kgs (cubic
meters)
Not
Applicable
(0.114)g
(0.45)d
(4.5)d
(11.4)d
Not limited
Not limited
114d, h
(0.114)g
(0.114)g
(0.45)g
Not Applicable
Not Applicable
(0.114)g
Not Applicable
Not
Applicable
38d
114d
38d
Not
Applicable
38d
Liquid liters
(kgs)
114d
303d
12,491f
Not
Applicable
USE-OPEN SYSTEMSb
TABLE 2A.7.7(1)
a, j, m
MAXIMUM ALLOWABLE QUANTITY PER CONTROL AREA OF HAZARDOUS MATERIALS POSING A PHYSICAL HAZARD
USE AND OCCUPANCY CLASSIFICATION
Gaseous
Liquefied
CLASS
4
3k
2
1
H-3
Not
Applicable
Solid kgs
(cubic
meters)
0.45e, g
4.5d, e
113.5d, e
1,816e, f
Liquid liters
(kgs)
(0.45)e, g
(4.5)d, e
(113.5)d, e
(1,816)e, f
Not
Applicable
57d, e
STORAGEb
42.5d, e
Not
Applicable
Not
Applicable
Gas cubic
meters at NTP
Not
Applicable
Solid kgs
(cubic meters)
0.114g
0.9d
113.5d
1,816f
Liquid liters
(kgs)
(0.114)g
(0.9)d
(113.5)d
(1,816)f
Not
Applicable
57d, e
42.5d, e
Not
Applicable
Not
Applicable
Gas cubic meters
at NTP
USE-CLOSED SYSTEMSb
Not
Applicable
Solid kgs (cubic
meters)
0.114g
0.9d
22.7d
454f
Not
Applicable
Liquid liters
(kgs)
(0.114)g
(0.9)d
(22.7)d
(454)f
USE-OPEN SYSTEMSb
Pyrophoric material
SBC 801
2007
2/19
Not
(1.8)e, g
1.42e, g
0.45g
(0.45)g
0.28e, g
0
0
H-2
1.8e, g
Applicable
4
(0.45)e, g
0.28e, g
0.114g
(0.114)g
0.057e, g
0.114g
(0.114)g
H-1
0.45e, g
2.3d, e
(2.3)d, e
1.42d, e
0.45d
(0.45)
0.28 d, e
0.45d
(0.45)d
3
H-1 or H-2
Unstable (reactive)
22.7d, e
(22.7)d, e
7.1d, e
22.7d
7.1d, e
4.5d
(4.5)d
(22.7)d
2
H-3
Not Limited
Not Limited
Not Limited
Not Limited
Not Limited
Not Limited
Not Limited
Not Limited
1
Not Applicable
H-2
3
2.3d, e
(2.3)d, e
(2.3)d
(0.45)d
2.3d
0.45d
Not
Not
Water reactive
H-3
2
22.7d, e
(22.7)d, e
22.7d
(22.7)d
4.5d
(4.5)d
Applicable
Applicable
1
Not Applicable
Not Limited
Not Limited
Not Limited
Not Limited
Not Limited
Not Limited
NL = Not Limited; N/A = Not Applicable; UD = Unclassified Detonable
a. For use of control areas, see Section 2B.14.2.
b. The aggregate quantity in use and storage shall not exceed the quantity listed for storage.
c. The quantities of alcoholic beverages in retail and wholesale sales occupancies shall not be limited providing the liquids are packaged in individual containers not exceeding 5 liters. In retail and wholesale
sales occupancies, the quantities of medicines, foodstuffs, consumer or industrial products, and cosmetics containing not more than 50 percent by volume of water-miscible liquids with the remainder of the
solutions not being flammable, shall not be limited, provided that such materials are packaged in individual containers not exceeding 5 liters.
d. Maximum allowable quantities shall be increased 100 percent in buildings equipped throughout with an automatic sprinkler system in accordance with Section 7.3.3.1.1. Where Note e also applies, the increase
for both notes shall be applied accumulatively.
e. Quantities shall be increased 100 percent when stored in approved cabinets, gas cabinets, exhausted enclosures or safety cans as specified in these code requirements. Where Note d also applies, the increase for
both notes shall be applied accumulatively.
f.
The permitted quantities shall not be limited in a building equipped throughout with an automatic sprinkler system in accordance with Section 7.3.3.1.1.
g. Permitted only in buildings equipped throughout with an automatic sprinkler system in accordance with Section 7.3.3.1.1.
h. Containing not more than the maximum allowable quantity per control area of Class IA, IB or IC flammable liquids.
i.
Inside a building, the maximum capacity of a combustible liquid storage system that is connected to a fuel-oil piping system shall be 2,498 liters provided such system conforms to these code requirements.
j.
Quantities in parenthesis indicate quantity units in parenthesis at the head of each column.
k. A maximum quantity of 91 kilograms of solid or 76 liters of liquid Class 3 oxidizers is allowed when such materials are necessary for maintenance purposes, operation or sanitation of equipment. Storage
containers and the manner of storage shall be approved.
l.
Net weight of the pyrotechnic composition of the fireworks. Where the net weight of the pyrotechnic composition of the fireworks is not known, 25 percent of the gross weight of the fireworks, including
packaging, shall be used.
m. For storage and display quantities in Group M and storage quantities in Group S occupancies complying with Section 2B.14.2.4, see Table 2B.14.2.4.
Oxidizing gas
Oxidizer
MATERIAL
GROUP WHEN
THE MAXIMUM
ALLOWABLE
QUANTITY IS
EXCEEDED
H-1
H-2
H-3
H-3
TABLE 2A.7.7(1)—(continued)
a, j, m
MAXIMUM ALLOWABLE QUANTITY PER CONTROL AREA OF HAZARDOUS MATERIALS POSING A PHYSICAL HAZARD
USE AND OCCUPANCY CLASSIFICATION
227
Toxic
SBC 801
(227)i
23f
2007
227
4.5
0.57
(4.5)
i
h
2,270
Solid kgse
23f, g
Gas cubic meterse
1,893
STORAGEd
Liquid liters (kgs)e, f
(227)i
(4.5)
i
1,893
23f
0.57
h
23f, g
USE-CLOSED SYSTEMSb
Liquid liters (kgs)e
Gas cubic meterse
2/20
56.8
1.4
454
(56.8)i
(1.4)i
379
USE-OPEN SYSTEMSb
Solid kgse
Liquid liters (kgs)e
a. For use of control areas, see Section 2B.14.2.
b. In retail and wholesale sales occupancies, the quantities of medicines, foodstuffs consumer or industrial products, and cosmetics, containing not more than 50 percent by volume of watermiscible liquids and with the remainder of the solutions not being flammable, shall not be limited, provided that such materials are packaged in individual containers not exceeding 5 liters.
c. For storage and display quantities in Group M and storage quantities in Group S occupancies complying with Section 2B.14.2.4, see Table 2B.14.2.4.
d. The aggregate quantity in use and storage shall not exceed the quantity listed for storage.
e. Maximum allowable quantities shall be increased 100 percent in buildings equipped throughout with an approved automatic sprinkler system in accordance with Section 7.3.3.1.1. Where
Note f also applies, the increase for both notes shall be applied accumulatively.
f. Maximum allowable quantities shall be increased 100 percent when stored in approved storage cabinets, gas cabinets, or exhausted enclosures. Where Note e also applies, the increase for
both notes shall be applied accumulatively.
g. A single cylinder containing 68 kilograms or less of anhydrous ammonia in a single control area in a nonsprinklered building shall be considered a maximum allowable quantity. Two
cylinders, each containing 68 kilograms or less in a single control area shall be considered a maximum allowable quantity provided the building is equipped throughout with an automatic
sprinkler system in accordance with Section 7.3.3.1.1.
h. Allowed only when stored in approved exhausted gas cabinets or exhausted enclosures.
i. Quantities in parenthesis indicate quantity units in parenthesis at the head of each column.
4.5
2,270
Solid kgse, f
Highly toxic
Corrosive
MATERIAL
TABLE 2A.7.7(2)
a,b,c
MAXIMUM ALLOWABLE QUANTITY PER CONTROL AREA OF HAZARDOUS MATERIAL POSING A HEALTH HAZARD
USE AND OCCUPANCY CLASSIFICATION
USE AND OCCUPANCY CLASSIFICATION
6.
7.
8.
9.
10.
11.
12.
13.
14.
Cleaning establishments that utilize combustible liquid solvents having a
flash point of 60°C or higher in closed systems employing equipment listed
by an approved testing agency, provided that this occupancy is separated
from all other areas of the building by 1 hour fire-resistance-rated fire
barrier walls or horizontal assemblies or both.
Cleaning establishments which utilize a liquid solvent having a flash point at
or above 93°C.
Refrigeration systems.
The storage or utilization of materials for agricultural purposes on the
premises.
Stationary batteries utilized for facility emergency power, uninterrupted
power supply or telecommunication facilities provided that the batteries are
provided with safety venting caps and ventilation is provided in accordance
with the SBC 501.
Corrosives shall not include personal or household products in their original
packaging used in retail display or commonly used building materials.
Buildings and structures occupied for aerosol storage shall be classified as
Group S-1, provided that such buildings conform to the requirements of
these code requirements.
Display and storage of nonflammable solid and nonflammable or
noncombustible liquid hazardous materials in quantities not exceeding the
maximum allowable quantity per control area in Group M or S occupancies
complying with Section 2B14.2.4 (Hazardous Materials).
The storage of black powder, smokeless propellant and small arms primers
in Groups M and R-3 and special industrial explosive devices in Groups B,
F, M and S, provided such storage conforms to the quantity limits and
requirements prescribed in these code requirements.
SECTION 2A.8
INSTITUTIONAL GROUP I
2A.8.1
Institutional Group I. Institutional Group I occupancy includes, among others,
the use of a building or structure, or a portion thereof, in which people are cared
for or live in a supervised environment, having physical limitations because of
health or age are harbored for medical treatment or other care or treatment, or in
which people are detained for penal or correctional purposes or in which the
liberty of the occupants is restricted. Institutional occupancies shall be classified as
Group I-1, I-2, I-3 or I-4.
2A.8.2
Group I-1. This occupancy shall include buildings, structures or parts thereof
housing more than 16 persons, on a 24-hour basis, who because of age, mental
disability or other reasons, live in a supervised residential environment that
provides personal care services. The occupants are capable of responding to an
emergency situation without physical assistance from staff. This group shall
include, but not be limited to, the following:
Residential board and care facilities
Assisted living facilities
Halfway houses
Group homes
Congregate care facilities
Social rehabilitation facilities
Alcohol and drug treatment centers
SBC 801
2007
2/21
USE AND OCCUPANCY CLASSIFICATION
Convalescent facilities
A facility such as the above with five or fewer persons shall be classified as a
Group R-3 or shall comply with SBC 100. A facility such as above, housing at
least six and not more than 16 persons, shall be classified as Group R-4.
2A.8.3
2A.8.3.1
2A.8.4
2A.8.4.1
2A.8.4.2
2A.8.4.3
2A.8.4.4
2A.8.4.5
SBC 801
Group I-2. This occupancy shall include buildings and structures used for
medical, surgical, psychiatric, nursing or custodial care on a 24-hour basis of more
than five persons who are not capable of self-preservation. This group shall
include, but not be limited to, the following:
Hospitals
Nursing homes (both intermediate-care facilities and skilled nursing facilities)
Mental hospitals
Detoxification facilities
A facility such as the above with five or fewer persons shall be classified as Group
R-3 or shall comply with SBC 100
Child care facility. A child care facility that provides care on a 24-hour basis to
more than five children 21/2 years of age or less shall be classified as Group I-2.
Group I-3. This occupancy shall include buildings and structures that are
inhabited by more than five persons who are under restraint or security. An I-3
facility is occupied by persons who are generally incapable of self-preservation
due to security measures not under the occupants’ control. This group shall
include, but not be limited to, the following:
Prisons
Jails
Reformatories
Detention centers
Correctional centers
Prerelease centers
Buildings of Group I-3 shall be classified as one of the occupancy conditions
indicated in Sections 2A.8.4.1 through 2A.8.4.5 (see Section 2B.8.1).
Condition 1. This occupancy condition shall include buildings in which free
movement is allowed from sleeping areas, and other spaces where access or
occupancy is permitted, to the exterior via means of egress without restraint. A
Condition 1 facility is permitted to be constructed as Group R.
Condition 2. This occupancy condition shall include buildings in which free
movement is allowed from sleeping areas and any other occupied smoke
compartment to one or more other smoke compartments. Egress to the exterior is
impeded by locked exits.
Condition 3. This occupancy condition shall include buildings in which free
movement is allowed within individual smoke compartments, such as within a
residential unit comprised of individual sleeping units and group activity spaces,
where egress is impeded by remote-controlled release of means of egress from
such a smoke compartment to another smoke compartment.
Condition 4. This occupancy condition shall include buildings in which free
movement is restricted from an occupied space. Remote-controlled release is
provided to permit movement from sleeping units, activity spaces and other
occupied areas within the smoke compartment to other smoke compartments.
Condition 5. This occupancy condition shall include buildings in which free
movement is restricted from an occupied space. Staff-controlled manual release is
provided to permit movement from sleeping units, activity spaces and other
occupied areas within the smoke compartment to other smoke compartments.
2007
2/22
USE AND OCCUPANCY CLASSIFICATION
2A.8.5
2A.8.5.1
2A.8.5.2
Group I-4, day care facilities. This group shall include buildings and structures
occupied by persons of any age who receive custodial care for less than 24 hours
by individuals other than parents or guardians, relatives by blood, marriage or
orphanage, and in a place other than the home of the person cared for. A facility
such as the above with five or fewer persons shall be classified as a Group R-3 or
shall comply with SBC 100. Places of worship during religious functions are not
included.
Adult care facility. A facility that provides accommodations for less than 24
hours for more than five unrelated adults and provides supervision and personal
care services shall be classified as Group I-4.
Exception: A facility where occupants are capable of responding to an emergency
situation without physical assistance from the staff shall be classified as Group A3.
Child care facility. A facility that provides supervision and personal care on less
than a 24-hour basis for more than five children 21/2 years of age or less shall be
classified as Group I-4.
Exception: A child day care facility that provides care for more than five but no
more than 100 children 21/2 years or less of age, when the rooms where such
children are cared for are located on the level of exit discharge and each of these
child care rooms has an exit door directly to the exterior, shall be classified as
Group E.
SECTION 2A.9
MERCANTILE GROUP M
2A.9.1
Mercantile Group M. Mercantile Group M occupancy includes, among others,
buildings and structures or a portion thereof, for the display and sale of
merchandise, and involves stocks of goods, wares or merchandise incidental to
such purposes and accessible to the public. Mercantile occupancies shall include,
but not be limited to, the following:
Department stores
Drug stores
Markets
Motor fuel-dispensing facilities
Retail or wholesale stores
Sales rooms
2A.9.2
Quantity of hazardous materials. The aggregate quantity of nonflammable solid
and nonflammable or noncombustible liquid hazardous materials stored or
displayed in a single control area of a Group M occupancy shall not exceed the
quantities in Table 2B.14.2.4.
SECTION 2A.10
RESIDENTIAL GROUP R
2A.10.1
SBC 801
Residential Group R. Residential Group R includes, among others, the use of a
building or structure, or a portion thereof, for sleeping purposes when not
classified as an Institutional Group I. Residential occupancies shall include the
following:
R-1 Residential occupancies where the occupants are primarily transient in nature,
including:
Boarding houses (transient)
2007
2/23
USE AND OCCUPANCY CLASSIFICATION
Hotels (transient)
Motels (transient)
R-2 Residential occupancies containing sleeping units or more than two dwelling
units where the occupants are primarily permanent in nature, including:
Apartment houses
Boarding houses (not transient)
Dormitories
Fraternities and sororities
Vacation timeshare properties
Hotels (non-transient)
Motels (non-transient)
R-3 Residential occupancies where the occupants are primarily permanent in
nature and not classified as R-1, R-2, R-4 or I and where buildings do not contain
more than two dwelling units as applicable in SBC 100, or adult and child care
facilities that provide accommodations for five or fewer persons of any age for less
than 24 hours. Adult and child care facilities that are within a single-family home
are permitted to comply with SBC 100.
R-4 Residential occupancies shall include buildings arranged for occupancy as
residential care/assisted living facilities including more than five but not more than
16 occupants, excluding staff.
Group R-4 occupancies shall meet the requirements for construction as defined for
Group R-3 except as otherwise provided for in SBC 201 or in accordance with
SBC 100.
2A.10.2
Definitions. The following words and terms shall, for the purposes of this section
and as used elsewhere in these code requirements, have the meanings shown
herein.
BOARDING HOUSE. A building arranged or used for lodging for compensation,
with or without meals, and not occupied as a single-family unit.
DORMITORY. A space in a building where group sleeping accommodations are
provided in one room, or in a series of closely associated rooms, for persons not
members of the same family group, under joint occupancy and single management,
as in college dormitories or fraternity houses.
DWELLING UNIT. A single unit providing complete, independent living
facilities for one or more persons, including permanent provisions for living,
sleeping, eating, cooking and sanitation.
PERSONAL CARE SERVICE. The care of residents who do not require chronic
or convalescent medical or nursing care. Personal care involves responsibility for
the safety of the resident while inside the building.
RESIDENTIAL CARE/ASSISTED LIVING FACILITIES. A building or part
thereof housing persons, on a 24-hour basis, who because of age, mental disability
or other reasons, live in a supervised residential environment which provides
personal care services. The occupants are capable of responding to an emergency
situation without physical assistance from staff. This classification shall include,
but not be limited to, the following: residential board and care facilities, assisted
living facilities, halfway houses, group homes, congregate care facilities, social
rehabilitation facilities, alcohol and drug abuse treatment centers and convalescent
facilities.
SBC 801
2007
2/24
USE AND OCCUPANCY CLASSIFICATION
SECTION 2A.11
STORAGE GROUP S
2A.11.1
Storage Group S. Storage Group S occupancy includes, among others, the use of
a building or structure, or a portion thereof, for storage that is not classified as a
hazardous occupancy.
2A.11.2
Moderate-hazard storage, Group S-1. Buildings occupied for storage uses
which are not classified as Group S-2 including, but not limited to, storage of the
following:
Aerosols, Levels 2 and 3
Aircraft repair hangar
Bags; cloth, burlap and paper
Bamboos and rattan
Baskets
Belting; canvas and leather
Books and paper in rolls or packs
Boots and shoes
Buttons, including cloth covered, pearl or bone
Cardboard and cardboard boxes
Clothing, woolen wearing apparel cordage
Furniture
Furs
Glues, mucilage, pastes and size
Grains
Horns and combs, other than celluloid
Leather
Linoleum
Lumber
Motor vehicle repair garages complying with the maximum allowable quantities of
hazardous materials listed in Table 2A.7.7(1) (see Section 2B.6.6)
Photo engravings resilient flooring silks
Soaps
Sugar
Tires, bulk storage of
Tobacco, cigars, and cigarettes
Upholstery and mattresses
Wax candles
2A.11.3
Low-hazard storage, Group S-2. Includes, among others, buildings used for the
storage of noncombustible materials such as products on wood pallets or in paper
cartons with or without single thickness divisions; or in paper wrappings. Such
products are permitted to have a negligible amount of plastic trim, such as knobs,
handles or film wrapping. Storage uses shall include, but not be limited to, storage
of the following:
Aircraft hangar
Asbestos
Medical products up to and including 12-percent alcohol in metal, glass or ceramic
containers
Cement in bags
Chalk and crayons
Dairy products in non-waxed coated paper containers
SBC 801
2007
2/25
USE AND OCCUPANCY CLASSIFICATION
Dry cell batteries
Electrical coils electrical motors
Empty cans
Food products
Foods in noncombustible containers
Fresh fruits and vegetables in non-plastic trays or containers
Frozen foods
Glass
Glass bottles, empty or filled with noncombustible liquids
Gypsum board
Inert pigments
Ivory
Meats
Metal cabinets
Metal desks with plastic tops and trim
Metal parts
Metals
Mirrors
Oil-filled and other types of distribution transformers
Parking garages, open or enclosed
Porcelain and pottery
Stoves
Talc and soap stones
Washers and dryers
SECTION 2A.12
UTILITY AND MISCELLANEOUS GROUP U
2A.12.1
SBC 801
General. Buildings and structures of an accessory character and miscellaneous
structures not classified in any specific occupancy shall be constructed, equipped
and maintained to conform to the requirements of the Saudi Building Code
commensurate with the fire and life hazard incidental to their occupancy. Group U
shall include, but not be limited to, the following:
Agricultural buildings
Aircraft hangars, accessory to a one- or two-family residence (see Section
2B.12.3)
Barns
Carports
Fences more than 1.8 m high
Grain silos, accessory to a residential occupancy
Greenhouses
Livestock shelters
Private garages
Retaining walls
Sheds
Stables
Tanks
Towers
2007
2/26
USE AND OCCUPANCY CLASSIFICATION
SECTION 2B
SPECIAL DETAILED REQUIREMENTS BASED ON
USE AND OCCUPANCY
SECTION 2B.1
SCOPE
2B.1.1
Detailed use and occupancy requirements. In addition to the occupancy and
construction requirements in these code requirements, the provisions of this
chapter apply to the special uses and occupancies described herein.
SECTION 2B.2
COVERED MALL BUILDINGS
2B.2.1
Scope. The provisions of this section shall apply to buildings or structures defined
herein as covered mall buildings not exceeding three floor levels at any point nor
more than three stories above grade. Except as specifically required by this
section, covered mall buildings shall meet applicable provisions of these code
requirements.
Exceptions:
1. Foyers and lobbies of Groups B, R-1 and R-2 are not required to comply with
this section.
2. Buildings need not comply with the provisions of this section where they
totally comply with other applicable provisions of these code requirements.
2B.2.2
Definitions. The following words and terms shall, for the purposes of this chapter
and as used elsewhere in these code requirements, have the meanings shown
herein.
ANCHOR BUILDING. An exterior perimeter building of a group other than H
having direct access to a covered mall building but having required means of
egress independent of the mall.
COVERED MALL BUILDING. A single building enclosing a number of tenants
and occupants such as retail stores, drinking and dining establishments,
entertainment and amusement facilities, passenger transportation terminals,
offices, and other similar uses wherein two or more tenants have a main entrance
into one or more malls. For the purpose of this chapter, anchor buildings shall not
be considered as a part of the covered mall building.
FOOD COURT. A public separate seating area for male/families located in the
mall that serves adjacent food preparation tenant spaces.
GROSS LEASABLE AREA. The total floor area designed for tenant occupancy
and exclusive use. The area of tenant occupancy is measured from the centerlines
of joint partitions to the outside of the tenant walls. All tenant areas, including
areas used for storage, shall be included in calculating gross leasable area.
MALL. A roofed or covered common pedestrian area within a covered mall
building that serves as access for two or more tenants and not to exceed three
levels that are open to each other.
SBC 801
2007
2/27
USE AND OCCUPANCY CLASSIFICATION
2B.2.3
Lease plan. Each covered mall building owner shall provide both the building
authority and fire civil defense with a lease plan showing the location of each
occupancy and its exits after the certificate of occupancy has been issued. No
modifications or changes in occupancy or use shall be made from that shown on
the lease plan without prior approval of the building official.
2B.2.4
Means of egress. Each tenant space and the covered mall building shall be
provided with means of egress as required by this section and these code
requirements. Where there is a conflict between the requirements of these code
requirements and the requirements of this section, the requirements of this section
shall apply.
2B.2.4.1
Determination of occupant load. The occupant load permitted in any individual
tenant space in a covered mall building shall be determined as required by these
code requirements. Means of egress requirements for individual tenant spaces shall
be based on the occupant load thus determined.
Occupant formula. In determining required means of egress of the mall, the
number of occupants for whom means of egress are to be provided shall be based
on gross leasable area of the covered mall building (excluding anchor buildings)
and the occupant load factor as determined by the following equation.
2B.2.4.1.1
OLF = ((0.00007) (GLA) + 25) X 0.0929
Where:
OLF = The occupant load factor (square meters per person).
GLA = The gross leasable area (square meters).
2B.2.4.1.2
2B.2.4.1.3
2B.2.4.1.4
2B.2.4.2
2B.2.4.3
2B.2.4.3.1
2B.2.4.4
SBC 801
(Equation 4-1)
OLF range. The occupant load factor (OLF) is not required to be less than 2.8 and
shall not exceed 4.6.
Anchor buildings. The occupant load of anchor buildings opening into the mall
shall not be included in computing the total number of occupants for the mall.
Food courts. The occupant load of a food court shall be determined in accordance
with Section 8.3. For the purposes of determining the means of egress
requirements for the mall, the food court occupant load shall be added to the
occupant load of the covered mall building as calculated above.
Number of means of egress. Wherever the distance of travel to the mall from any
location within a tenant space used by persons other than employees exceeds 23 m
or the tenant space exceeds an occupant load of 50, not less than two means of
egress shall be provided.
Arrangements of means of egress. Assembly occupancies with an occupant load
of 500 or more shall be so located in the covered mall building that their entrance
will be immediately adjacent to a principal entrance to the mall and shall have not
less than one-half of their required means of egress opening directly to the exterior
of the covered mall building.
Anchor building means of egress. Required means of egress for anchor buildings
shall be provided independently from the mall means of egress system. The
occupant load of anchor buildings opening into the mall shall not be included in
determining means of egress requirements for the mall. The path of egress travel
of malls shall not exit through anchor buildings. Malls terminating at an anchor
building where no other means of egress has been provided shall be considered as
a dead-end mall.
Distance to exits. Within each individual tenant space in a covered mall building,
the maximum distance of travel from any point to an exit or entrance to the mall
2007
2/28
USE AND OCCUPANCY CLASSIFICATION
2B.2.4.5
2B.2.4.5.1
2B.2.4.6
2B.2.5
2B.2.5.1
shall not exceed 61 m.
The maximum distance of travel from any point within a mall to an exit shall not
exceed 61 m.
Access to exits. Where more than one exit is required, they shall be so arranged
that it is possible to travel in either direction from any point in a mall to separate
exits. The minimum width of an exit passageway or corridor from a mall shall be
1.7 m.
Exception: Dead ends not exceeding a length equal to twice the width of the mall
measured at the narrowest location within the dead-end portion of the mall.
Exit passageway enclosures. Where exit passageway enclosures provide a
secondary means of egress from a tenant space, doors to the exit passageway
enclosures shall be 1 hour fire doors. Such doors shall be self-closing and be so
maintained or shall be automatic-closing by smoke detection.
Service areas fronting on exit passageways. Mechanical rooms, electrical rooms,
building service areas and service elevators are permitted to open directly into exit
passageways provided that the exit passageway is separated from such rooms with
1 hour fire-resistance-rated walls and 1 hour opening protectives.
Mall width. For the purpose of providing required egress, malls are permitted to
be considered as corridors but need not comply with the requirements of Section
8.5.1 of these code requirements where the width of the mall is as specified in this
section.
Minimum width. The minimum width of the mall shall be 6.1 m. The mall width
shall be sufficient to accommodate the occupant load served. There shall be a
minimum of 3.1 m clear exit width to a height of 2.4 m between any projection of
a tenant space bordering the mall and the nearest kiosk, vending machine, bench,
display opening, food court or other obstruction to means of egress travel.
2B.2.6
Types of construction. The area of any covered mall building, including anchor
buildings, of Type I, II, III and IV construction, shall not be limited provided the
covered mall building and attached anchor buildings and parking garages are
surrounded on all sides by a permanent open space of not less than 18.3 m and the
anchor buildings do not exceed three stories in height. The allowable height and
area of anchor buildings greater than three stores in height shall comply with
Section 3.3, as modified by Sections 3.4 and 3.6. The construction type of open
parking garages and enclosed parking garages shall comply with Sections 2B.6.3
and 2B.6.4 respectively.
2B.2.7
Fire-resistance-rated separation. Fire-resistance-rated separation is not required
between tenant spaces and the mall. Fire-resistance-rated separation is not required
between a food court and adjacent tenant spaces or the mall.
Attached garage. An attached garage for the storage of passenger vehicles having
a capacity of not more than nine persons and open parking garages shall be
considered as a separate building where it is separated from the covered mall
building by a fire barrier having a fire-resistance rating of at least 2 hours.
Exception: Where an open parking garage or enclosed parking garage is separated
from the covered mall building or anchor building a distance greater than 3.1 m,
the provisions of Table 4A.2 shall apply. Pedestrian walkways and tunnels which
attach the open parking garage or enclosed parking garage to the covered mall
building or anchor building shall be constructed in accordance with Section 4.4 of
SBC 201.
Tenant separations. Each tenant space shall be separated from other tenant spaces
2B.2.7.1
2B.2.7.2
SBC 801
2007
2/29
USE AND OCCUPANCY CLASSIFICATION
2B.2.7.3
2B.2.7.3.1
2B.2.8
2B.2.8.1
by a fire partition complying with Section 4B.8. A tenant separation wall is not
required between any tenant space and the mall.
Anchor building separation. An anchor building shall be separated from the
covered mall building by fire walls complying with Section 4B.6.
Exception: Anchor buildings of not more than three stories above grade which
have an occupancy classification of the same uses permitted as tenants of the
covered mall building shall be separated by 2 hours fire resistive fire-barriers
complying with Section 4B.6.
Openings between anchor building and mall. Except for the separation between
Group R-1 sleeping units and the mall, openings between anchor buildings of
Type IA, IB, IIA and IIB construction and the mall need not be protected.
Automatic sprinkler system. The covered mall building and buildings connected
shall be provided throughout with an automatic sprinkler system in accordance
with Section 7.3.3.1.1, which shall comply with the following:
1. The automatic sprinkler system shall be complete and operative throughout
occupied space in the covered mall building prior to occupancy of any of the
tenant spaces. Unoccupied tenant spaces shall be similarly protected unless
provided with approved alternate protection.
2. Sprinkler protection for the mall shall be independent from that provided for
tenant spaces or anchors. Where tenant spaces are supplied by the same
system, they shall be independently controlled.
Exception: An automatic sprinkler system shall not be required in spaces or areas
of open parking garages constructed in accordance with Section 2B.6.2.
Standpipe system. The covered mall building shall be equipped throughout with a
standpipe system as required by Section 7.5.3.3.
2B.2.9
Smoke control. A smoke control system shall be provided where required for
atriums in Section 2B.4.
2B.2.10
Kiosks. Kiosks and similar structures (temporary or permanent) shall meet the
following requirements:
1. Combustible kiosks or other structures shall not be located within the mall
unless constructed of any of the following materials:
1.1 Fire-retardant-treated wood complying with Section 11.14 of SBC 201.
1.2 Foam plastics having a maximum heat release rate not greater than 105
Btu/h when tested in accordance with the exhibit booth protocol in UL
1975.
1.3 Aluminum composite material (ACM) having a flame spread index of
not more than 25 and a smoke-developed index of not more than 450
when tested as an assembly in the maximum thickness intended for use in
accordance with ASTM E 84.
2. Kiosks or similar structures located within the mall shall be provided with
approved fire suppression and detection devices.
3. The minimum horizontal separation between kiosks or groupings thereof and
other structures within the mall shall be 6.1 m.
4. Each kiosk or similar structure or groupings thereof shall have a maximum
area of 28 m2.
2B.2.11
Security grilles and doors. Horizontal sliding or vertical security grilles or doors
that are a part of a required means of egress shall conform to the following:
1. They shall remain in the full open position during the period of occupancy by
SBC 801
2007
2/30
USE AND OCCUPANCY CLASSIFICATION
the general public.
2. Doors or grilles shall not be brought to the closed position when there are more
than 10 persons occupying spaces served by a single exit or 50 persons
occupying spaces served by more than one exit.
3. The doors or grilles shall be openable from within without the use of any
special knowledge or effort where the space is occupied.
4. Where two or more exits are required, not more than one-half of the exits shall
be permitted to include either a horizontal sliding or vertical rolling grille or
doors.
2B.2.12
Standby power. Covered mall buildings exceeding 4,645 m2 shall be provided
with standby power systems that are capable of operating the emergency
voice/alarm communication system.
2B.2.13
Emergency voice/alarm communication system. Covered mall buildings
exceeding 4,645 m2 in total floor area shall be provided with an emergency
voice/alarm communication system. Emergency voice/alarm communication
systems serving a mall required or otherwise, shall be accessible to the fire civil
defense. The system shall be provided in accordance with Section 7.7.2.12.2.
Plastic signs. Within every store or level and from sidewall to sidewall of each
tenant space facing the mall, plastic signs shall be limited as specified in Sections
2B.2.14.1 through 2B.2.14.5.
2B.2.14.1 Area. Plastic signs shall not exceed 20 percent of the wall area facing the mall.
2B.2.14.2 Height and width. Plastic signs shall not exceed a height of 914 mm, except if the
sign is vertical, the height shall not exceed 2438 mm and the width shall not
exceed 914 mm.
2B.2.14.3 Location. Plastic signs shall be located a minimum distance of 457 mm from
adjacent tenants.
2B.2.14.4 Plastics other than foam plastics. Plastics other than foam plastics used in signs
shall be light-transmitting plastics complying with Section 11.6.4 of SBC 201 or
shall have a self-ignition temperature of 343°C or greater when tested in
accordance with ASTM D 1929, and a flame spread index not greater than 75 and
smoke-developed index not greater than 450 when tested in the manner intended
for use in accordance with ASTM E 84 or meet the acceptance criteria of Section
6.3.2.1 when tested in accordance with NFPA 286.
2B.2.14.4.1 Encasement. Edges and backs of plastic signs in the mall shall be fully encased in
metal.
2B.2.14.5 Foam plastics. Foam plastics used in signs shall have flame-retardant
characteristics such that the sign has a maximum heat-release rate of 150 kilowatts
when tested in accordance with UL 1975 and the foam plastics shall have the
physical characteristics specified in this section. Foam plastics used in signs
installed in accordance with Section 2B2.14 shall not be required to comply with
the flame spread and smoke-developed indexes specified in Section 11.3.3 of SBC
201.
2B.2.14.5.1 Density. The minimum density of foam plastics used in signs shall not be less than
320 kg/m3.
2B.2.14.5.2 Thickness. The thickness of foam plastic signs shall not be greater than 12.7 mm.
2B.2.14
2B.2.15
SBC 801
Civil defense access to equipment. Rooms or areas containing controls for airconditioning systems, automatic fire-extinguishing systems or other detection,
suppression or control elements shall be identified for use by the fire Civil
2007
2/31
USE AND OCCUPANCY CLASSIFICATION
Defence.
SECTION 2B.3
HIGH-RISE BUILDINGS
2B.3.1
Applicability. The provisions of this section shall apply to buildings having
occupied floors located more than 23 m above the lowest level of Civil Defence
vehicle access.
Exception: The provisions of this section shall not apply to the following
buildings and structures:
1. Airport traffic control towers in accordance with Section 2B.12.
2. Open parking garages in accordance with Section 2B.6.3.
3. Buildings with an occupancy in Group A-5 in accordance with Section 2A3.1.
4. Low-hazard special industrial occupancies in accordance with Section 3.3.1.2.
5. Buildings with an occupancy in Group H-1, H-2 or H-3 in accordance with
Section 2B.15.
2B.3.2
Automatic sprinkler system. Buildings and structures shall be equipped
throughout with an automatic sprinkler system in accordance with Section
7.3.3.1.1 and a secondary water supply where required by Section 7.3.3.5.2.
Exception: An automatic sprinkler system shall not be required in spaces or areas
of:
1. Open parking garages in accordance with Section 2B.6.3.
2. Telecommunications
equipment
buildings
used
exclusively
for
telecommunications equipment, associated electrical power distribution
equipment, batteries and standby engines, provided that those spaces or areas
are equipped throughout with an automatic fire detection system in accordance
with Section 7.7.2 and are separated from the remainder of the building with
fire barriers consisting of 1 hour fire-resistance-rated walls and 2 hours fireresistance-rated floor/ceiling assemblies.
2B.3.3
Reduction in fire-resistance rating. The fire-resistance-rating reductions listed in
Sections 2B.3.3.1 and 2B.3.3.2 shall be allowed in buildings that have sprinkler
control valves equipped with supervisory initiating devices and water-flow
initiating devices for each floor.
Type of construction. The following reductions in the minimum construction type
allowed in Table 4A.1 shall be allowed as provided in Section 2B.3.3:
1. Type IA construction shall be allowed to be reduced to Type IB.
2. In other than Groups F-1, M and S-1, Type IB construction shall be allowed to
be reduced to Type IIA.
3. The height and area limitations of the reduced construction type shall be
allowed to be the same as for the original construction type.
Shaft enclosures. The required fire-resistance rating of the fire barrier walls
enclosing vertical shafts, other than exit enclosures and elevator hoistway
enclosures, shall be reduced to 1 hour where automatic sprinklers are installed
within the shafts at the top and at alternate floor levels.
2B.3.3.1
2B.3.3.2
2B.3.4
Emergency escape and rescue. Emergency escape and rescue openings required
by Section 8.25 are not required.
2B.3.5
Automatic fire detection. Smoke detection shall be provided in accordance with
Section 7.7.2.12.1.
SBC 801
2007
2/32
USE AND OCCUPANCY CLASSIFICATION
2B.3.6
Emergency voice/alarm communication systems. An emergency voice/alarm
communication system shall be provided in accordance with Section 7.7.2.12.2.
2B.3.7
Fire civil defense communications system. A two-way fire civil defense
communications system shall be provided for Civil Defence use in accordance
with Section 7.7.2.12.3.
2B.3.8
Fire command. A fire command center complying with Section 7.11 shall be
provided in a location approved by the Civil Defence.
2B.3.9
Elevators. Elevator operation and installation shall be in accordance with SBC
501.
2B.3.10
Standby power. A standby power system complying with SBC 401 shall be
provided for standby power loads specified in Section 2B.3.10.2.
Special requirements for standby power systems. If the standby system is a
generator set inside a building, the system shall be located in a separate room
enclosed with 2 hours fire-resistance-rated fire barrier assemblies. System
supervision with manual start and transfer features shall be provided at the fire
command center.
Standby power loads. The following are classified as standby power loads:
1. Power and lighting for the fire command center required by Section 2B.3.8;
2. Electrically powered fire pumps;
3. Ventilation and automatic fire detection equipment for smokeproof enclosures.
Standby power shall be provided for elevators in accordance with SBC 501.
2B.3.10.1
2B.3.10.2
2B.3.11
2B.3.11.1
2B.3.12
2B.3.12.1
Emergency power systems. An emergency power system complying with SBC
401 shall be provided for emergency power loads specified in Section 2B.3.11.1.
Emergency power loads. The following are classified as emergency power loads:
1. Exit signs and means of egress illumination required by Chapter 8;
2. Elevator car lighting;
3. Emergency voice/alarm communications systems;
4. Automatic fire detection systems; and
5. Fire alarm systems.
Stairway door operation. Stairway doors other than the exit discharge doors shall
be permitted to be locked from stairway side. Stairway doors that are locked from
the stairway side shall be capable of being unlocked simultaneously without
unlatching upon a signal from the fire command center.
Stairway communications system. A telephone or other two-way
communications system connected to an approved constantly attended station shall
be provided at not less than every fifth floor in each required stairway where the
doors to the stairway are locked.
2B.3.13
Smokeproof exit enclosures. Every required stairway serving floors more than 23
m above the lowest level of civil defense vehicle access shall comply with
Sections 7.9.20 and 8.19.1.8.
2B.3.14
Seismic considerations. For seismic considerations, see SBC 301.
SBC 801
2007
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USE AND OCCUPANCY CLASSIFICATION
SECTION 2B.4
ATRIUMS
2B.4.1
2B.4.1.1
General. Vertical openings meeting the requirements of this section are not
required to be enclosed in other than Group H occupancies.
Definition. The following word and term shall, for the purposes of this chapter
and as used elsewhere in these code requirements, have the meaning shown herein.
ATRIUM. An opening connecting two or more stories other than enclosed
stairways, elevators, hoistways, escalators, plumbing, electrical, air-conditioning
or other equipment, which is closed at the top and not defined as a mall. Stories, as
used in this definition, do not include balconies within assembly groups or
mezzanines that comply with Section 3.5.
2B.4.2
Use. The floor of the atrium shall not be used for other than low fire hazard uses
and only approved materials and decorations in accordance with these code
requirements shall be used in the atrium space.
Exception: The atrium floor area is permitted to be used for any approved use
where the individual space is provided with an automatic sprinkler system in
accordance with Section 7.3.3.1.1.
2B.4.3
Automatic sprinkler protection. An approved automatic sprinkler system shall
be installed throughout the entire building.
Exceptions:
1. That area of a building adjacent to or above the atrium need not be
sprinklered provided that portion of the building is separated from the
atrium portion by a 2 hours fire barrier wall or horizontal assembly or
both.
2. Where the ceiling of the atrium is more than 17 m above the floor,
sprinkler protection at the ceiling of the atrium is not required.
2B.4.4
Smoke control. A smoke control system shall be installed in accordance with
Section 7.9.
Exceptions:
1. Smoke control is not required for floor openings meeting the
requirements of Section 4B.7.2, Exception 2, 7, 8 or 9.
2. Smoke control is not required for floor openings meeting the
requirements of Section 8.19.1, Exception 8 or 9.
2B.4.5
Enclosure of atriums. Atrium spaces shall be separated from adjacent spaces by a
1 hour fire barrier wall.
Exceptions:
1. A glass wall forming a smoke partition where automatic sprinklers are spaced
1.8 m or less along both sides of the separation wall, or on the room side only
if there is not a walkway on the atrium side, and between 102 mm and 305 mm
away from the glass and so designed that the entire surface of the glass is wet
upon activation of the sprinkler system. The glass shall be installed in a
gasketed frame so that the framing system deflects without breaking (loading)
the glass before the sprinkler system operates.
2. A glass-block wall assembly in accordance with SBC 305 and having a 3/4
hour fire protection rating.
3. The adjacent spaces of any three floors of the atrium shall not be required to be
separated from the atrium where such spaces are included in computing the
SBC 801
2007
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USE AND OCCUPANCY CLASSIFICATION
2B.4.6
atrium volume for the design of the smoke control system.
Standby power. Equipment required to provide smoke control shall be connected
to a standby power system in accordance with Section 7.9.11.
2B.4.7
Interior finish. The interior finish of walls and ceilings of the atrium shall not be
less than Class B with no reduction in class for sprinkler protection.
2B.4.8
Travel distance. In other than the lowest level of the atrium, where the required
means of egress is through the atrium space, the portion of exit access travel
distance within the atrium space shall not exceed 61 m.
SECTION 2B.5
UNDERGROUND BUILDINGS
2B.5.1
General. The provisions of this section apply to building spaces having a floor
level used for human occupancy more than 9.1 m below the lowest level of exit
discharge.
Exceptions:
1. One- and two-family dwellings, sprinklered in accordance with Section
7.3.3.1.3.
2. Parking garages with automatic fire suppression systems in compliance with
Section 2B.5.3.
3. Fixed guideway transit systems.
4. Grandstands, bleachers, stadiums, arenas and similar facilities.
5. Where the lowest story is the only story that would qualify the building as an
underground building and has an area not exceeding 139 m2 and has an
occupant load less than 10.
2B.5.2
Construction requirements. The underground portion of the building shall be of
Type I construction.
2B.5.3
Automatic sprinkler system. The highest level of exit discharge serving the
underground portions of the building and all levels below shall be equipped with
an automatic sprinkler system installed in accordance with Section 7.3.3.1.1.
Water-flow switches and control valves shall be supervised in accordance with
Section 7.3.4.
2B.5.4
Compartmentation. Compartmentation shall be in accordance with Sections
2B.5.4.1 through 2B.5.4.3.
Number of compartments. A building having a floor level more than 18.3 m
below the lowest level of exit discharge shall be divided into a minimum of two
compartments of approximately equal size. Such compartmentation shall extend
through the highest level of exit discharge serving the underground portions of the
building and all levels below.
Exception: The lowest story need not be compartmented where the area does not
exceed 139 m2 and has an occupant load of less than 10.
Smoke barrier penetration. The separation between the two compartments shall
be of minimum 1 hour fire barrier wall construction that shall extend from floor
slab to floor deck above. Openings between the two compartments shall be limited
to plumbing and electrical piping and conduit penetrations fire stopped in
accordance with Section 4B.12. Doorways shall be protected by door assemblies
that are automatic-closing by smoke detection in accordance with Section 4B.15.3
2B.5.4.1
2B.5.4.2
SBC 801
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USE AND OCCUPANCY CLASSIFICATION
2B.5.4.3
2B.5.5
2B.5.5.1
2B.5.5.2
and shall be provided with gasketing and a drop sill to minimize smoke leakage.
Where provided, each compartment shall have an air supply and an exhaust system
independent of the other compartments.
Elevators. Where elevators are provided, each compartment shall have direct
access to an elevator. Where an elevator serves more than one compartment, an
elevator lobby shall be provided and shall be separated from each compartment by
a 1 hour fire barrier wall. Doors shall be gasketed, have a drop sill, and be
automatic-closing by smoke detection installed in accordance with Section 7.7.10.
Smoke control system. A smoke control system shall be provided in accordance
with Sections 2B.5.5.1 and 2B.5.5.2.
Control system. A smoke control system is required to control the migration of
products of combustion in accordance with Section 7.9 and the provisions of this
section. Smoke control shall restrict movement of smoke to the general area of fire
origin and maintain means of egress in a usable condition.
Smoke exhaust system. Where compartmentation is required, each compartment
shall have an independent smoke control system. The system shall be
automatically activated and capable of manual operation in accordance with
Section 7.7.2.18.
2B.5.6
Fire alarm systems. A fire alarm system shall be provided where required by
Section 7.7.2.19.
2B.5.7
Public address. A public address system shall be provided where required by
Section 7.7.2.19.1.
2B.5.8
Means of egress. Means of egress shall be in accordance with Sections 2B.5.8.1
and 2B.5.8.2.
Number of exits. Each floor level shall be provided with a minimum of two exits.
Where compartmentation is required by Section 2B.5.4, each compartment shall
have a minimum of one exit and shall also have an exit access doorway into the
adjoining compartment.
Smokeproof enclosure. Every required stairway serving floor levels more than
9.1 m below its level of exit discharge shall comply with the requirements for a
smokeproof enclosure as provided in Section 8.19.1.8.
2B.5.8.1
2B.5.8.2
2B.5.9
2B.5.9.1
2B.5.9.2
2B.5.10
2B.5.10.1
SBC 801
Standby power. A standby power system complying with SBC 401 shall be
provided standby power loads specified in Section 2B.5.9.1.
Standby power loads. The following loads are classified as standby power loads.
1. Smoke control system.
2. Ventilation and automatic fire detection equipment for smokeproof enclosures.
3. Fire pumps.
Standby power shall be provided for elevators in accordance with SBC 501.
Pick-up time. The standby power system shall pick up its connected loads within
60 seconds of failure of the normal power supply.
Emergency power. An emergency power system complying with SBC 401 shall
be provided for emergency power loads specified in Section 2B.5.10.1.
Emergency power loads. The following loads are classified as emergency power
loads:
1. Emergency voice/alarm communications systems.
2. Fire alarm systems.
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USE AND OCCUPANCY CLASSIFICATION
3. Automatic fire detection systems.
4. Elevator car lighting.
5. Means of egress and exit sign illumination as required by Chapter 8.
2B.5.11
Standpipe system. The underground building shall be provided throughout with a
standpipe system in accordance with Section 7.5.
SECTION 2B.6
MOTOR-VEHICLE-RELATED OCCUPANCIES
2B.6.1
2B.6.1.1
2B.6.1.2
2B.6.1.3
2B.6.1.4
SBC 801
Private garages and carports.
Classification. Buildings or parts of buildings classified as Group U occupancies
because of the use or character of the occupancy shall not exceed 93 m2 in area or
one story in height except as provided in Section 2B.6.1.2. Any building or portion
thereof that exceeds the limitations specified in this section shall be classified in
the occupancy group other than Group U that it most nearly resembles.
Area increase. Group U occupancies used for the storage of private or pleasuretype motor vehicles where no repair work is done or fuel dispensed are permitted
to be 279 m2, when the following provisions are met:
1. For a mixed occupancy building, the exterior wall and opening protection for
the Group U portion of the building shall be as required for the major
occupancy of the building. For such mixed occupancy building, the allowable
floor area of the building shall be as permitted for the major occupancy
contained therein.
2. For a building containing only Group U occupancy, the exterior wall and
opening protection shall be as required for a Group R-1 or R-2 occupancy.
More than one 279 m2 Group U occupancy shall be permitted to be in the same
building, provided each 279 m2 area is separated by fire walls complying with
Section 4B.6.
Garages and carports. Carports shall be open on at least two sides. Carport floor
surfaces shall be of approved noncombustible material. Carports not open on at
least two sides shall be considered a garage and shall comply with the provisions
of this section for garages.
Exception: Asphalt surfaces shall be permitted at ground level in carports.
The area of floor used for parking of automobiles or other vehicles shall be sloped
to facilitate the movement of liquids to a drain or toward the main vehicle entry
doorway.
Separation. Separations shall comply with the following:
1. The private garage shall be separated from the dwelling unit and its attic area
by means of a minimum 12.7 mm gypsum board applied to the garage side.
Garages beneath habitable rooms shall be separated from all habitable rooms
above by not less than 16 mm Type X gypsum board or equivalent. Door
openings between a private garage and the dwelling unit shall be equipped
with either solid wood doors, or solid or honeycomb core steel doors not less
than 35 m thick, or doors in compliance with Section 4B.15.3.3. Openings
from a private garage directly into a room used for sleeping purposes shall not
be permitted.
2. Ducts in a private garage and ducts penetrating the walls or ceilings separating
the dwelling unit from the garage shall be constructed of a minimum 0.48 mm
sheet steel and shall have no openings into the garage.
3. A separation is not required between a Group R-3 and U carport provided the
carport is entirely open on two or more sides and there are not enclosed areas
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USE AND OCCUPANCY CLASSIFICATION
2B.6.2
2B.6.2.1
2B.6.2.2
2B.6.2.3
2B.6.2.4
2B.6.2.5
2B.6.2.6
2B.6.2.7
2B.6.2.8
2B.6.2.9
2B.6.3
2B.6.3.1
2B.6.3.2
above.
Parking garages.
Classification. Parking garages shall be classified as open, as defined in Section
2B.6.3, or enclosed and shall meet the appropriate criteria in Section 2B.6.4. Also
see Section 3.8 for special provisions for parking garages.
Clear height. The clear height of each floor level in vehicle and pedestrian traffic
areas shall not be less than 2.1 m. Vehicle and pedestrian areas accommodating
van-accessible parking required by Section 9.6.5 of the SBC 201 shall conform to
ICC A117.1.
Guards. Guards shall be provided in accordance with Section 8.12 at exterior and
interior vertical openings on floor and roof areas where vehicles are parked or
moved and where the vertical distance to the ground or surface directly below
exceeds 762 mm.
Vehicle barriers. Parking areas shall be provided with exterior or interior walls or
vehicle barriers, except at pedestrian or vehicular accesses, designed in accordance
with SBC 301. Vehicle barriers not less than 607 mm high shall be placed at the
ends of drive lanes, at the end of parking spaces where the difference in adjacent
floor elevation is greater than 305 mm.
Ramps. Vehicle ramps shall not serve as an exit element.
Floor surface. Parking surfaces shall be of concrete or similar noncombustible
and nonabsorbent materials.
Exception: Asphalt parking surfaces are permitted at ground level.
The area of floor used for parking of automobiles or other vehicles shall be sloped
to facilitate the movement of liquids to a drain or toward the main vehicle entry
doorway.
Mixed separation. Parking garages shall be separated from other occupancies in
accordance with Section 2A.2.1.1.
Special hazards. Connection of a parking garage with any room in which there is
a fuel-fired appliance shall be by means of a vestibule providing a two-doorway
separation.
Exception: A single door shall be allowed provided the sources of ignition in the
appliance are at least 457 mm above the floor.
Attached to rooms. Openings from a parking garage directly into a room used for
sleeping purposes shall not be permitted.
Open parking garages.
Scope. Except where specific provisions are made in the following subsections,
other requirements of these code requirements shall apply.
Definitions. The following words and terms shall, for the purposes of this chapter
and as used elsewhere in these code requirements, have the meanings shown
herein.
MECHANICAL-ACCESS OPEN PARKING GARAGES. Open parking
garages employing parking machines, lifts, elevators or other mechanical devices
for vehicles moving from and to street level and in which public occupancy is
prohibited above the street level.
OPEN PARKING GARAGE. A structure or portion of a structure with the
openings as described in Section 2B.6.3.3.1 on two or more sides that is used for
the parking or storage of private motor vehicles as described in Section 2B.6.3.4.
SBC 801
RAMP-ACCESS OPEN PARKING GARAGES. Open parking garages
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USE AND OCCUPANCY CLASSIFICATION
employing a series of continuously rising floors or a series of interconnecting
ramps between floors permitting the movement of vehicles under their own power
from and to the street level.
2B.6.3.3
2B.6.3.3.1
2B.6.3.4
2B.6.3.5
2B.6.3.5.1
Construction. Open parking garages shall be of Type I, II or IV construction.
Open parking garages shall meet the design requirements of SBC 301. For vehicle
barriers, see Section 2B.6.2.4.
Openings. For natural ventilation purposes, the exterior side of the structure shall
have uniformly distributed openings on two or more sides. The area of such
openings in exterior walls on a tier must be at least 20 percent of the total
perimeter wall area of each tier. The aggregate length of the openings considered
to be providing natural ventilation shall constitute a minimum of 40 percent of the
perimeter of the tier. Interior walls shall be at least 20 percent open with uniformly
distributed openings.
Exception: Openings are not required to be distributed over 40 percent of the
building perimeter where the required openings are uniformly distributed over two
opposing sides of the building.
Uses. Mixed uses shall be allowed in the same building as an open parking garage
subject to the provisions of Sections 2A.2.3, 2B.2.7.1, 2B.6.3.13, 3.8.3, 3.8.5 and
3.8.8
Area and height. Area and height of open parking garages shall be limited as set
forth in Chapter 3 for Group S-2 occupancies and as further provided for in
Section 2A.2.3.
Single use. When the open parking garage is used exclusively for the parking or
storage of private motor vehicles, with no other uses in the building, the area and
height shall be permitted to comply with Table 2B.6.3.5, along with increases
allowed by Section 2B.6.3.6.
Exception: The grade-level tier is permitted to contain an office, waiting and toilet
rooms having a total combined area of not more than 93 m2. Such area need not be
separated from the open parking garage.
In open parking garages having a spiral or sloping floor, the horizontal projection
of the structure at any cross section shall not exceed the allowable area per parking
tier. In the case of an open parking garage having a continuous spiral floor, each
2.9 m of height, or portion thereof, shall be considered a tier.
The clear height of a parking tier shall not be less than 2.1 m, except that a lower
clear height is permitted in mechanical-access open parking garages where
approved by the building official.
TABLE 2B.6.3.5
OPEN PARKING GARAGES AREA AND HEIGHT
Ramp
access
IA
Unlimited
IB
TYPE OF
CONSTRUCTION
SBC 801
HEIGHT (in tiers)
AREA
PER TIER
(square
meters)
Mechanical access
Automatic sprinkler system
No
Yes
Unlimited
Unlimited
Unlimited
Unlimited
12 tiers
12 tiers
18 tiers
IIA
4,645
10 tiers
10 tiers
15 tiers
IIB
4,645
8 tiers
8 tiers
12 tiers
IV
4,645
4 tiers
4 tiers
4 tiers
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USE AND OCCUPANCY CLASSIFICATION
2B.6.3.6
2B.6.3.7
2B.6.3.8
2B.6.3.9
2B.6.3.10
2B.6.3.11
2B.6.3.12
2B.6.3.13
2B.6.4
SBC 801
Area and height increases. The allowable area and height of open parking
garages shall be increased in accordance with the provisions of this section.
Garages with sides open on three-fourths of the building perimeter are permitted to
be increased by 25 percent in area and one tier in height. Garages with sides open
around the entire building perimeter are permitted to be increased 50 percent in
area and one tier in height. For a side to be considered open under the above
provisions, the total area of openings along the side shall not be less than 50
percent of the interior area of the side at each tier, and such openings shall be
equally distributed along the length of the tier.
Allowable tier areas in Table 2B.6.3.5 shall be increased for open parking garages
constructed to heights less than the table maximum. The gross tier area of the
garage shall not exceed that permitted for the higher structure. At least three sides
of each such larger tier shall have continuous horizontal openings not less than 762
mm in clear height extending for at least 80 percent of the length of the sides, and
no part of such larger tier shall be more than 61 m horizontally from such an
opening. In addition, each such opening shall face a street or yard accessible to a
street with a width of at least 9.1 m for the full length of the opening, and
standpipes shall be provided in each such tier.
Open parking garages of Type IB and II construction, with all sides open, shall be
unlimited in allowable area where the height does not exceed 23 m. For a side to
be considered open, the total area of openings along the side shall not be less than
50 percent of the interior area of the side at each tier, and such openings shall be
equally distributed along the length of the tier. All portions of tiers shall be within
61 m horizontally from such openings.
Location on property. Exterior walls and openings in exterior walls shall comply
with Tables 4A.1 and 4A.2. The distance from an adjacent property line shall be
determined in accordance with Table 4A.2 and Section 4B.4.
Means of egress. Where persons other than parking attendants are permitted, open
parking garages shall meet the means of egress requirements of Chapter 8 where
no persons other than parking attendants are permitted, there shall not be less than
two 914 mm exit stairways. Lifts shall be permitted to be installed for use of
employees only, provided they are completely enclosed by noncombustible
materials.
Standpipes. Standpipes shall be installed where required by the provisions of
Chapter 7.
Sprinkler systems. Where required by other provisions or these code
requirements, automatic sprinkler systems and standpipes shall be installed in
accordance with the provisions of Chapter 7.
Enclosure of vertical openings. Enclosure shall not be required for vertical
openings except as specified in Section 2B.6.3.8.
Ventilation. Ventilation, other than the percentage of openings specified in
Section 2B.6.3.3.1, shall not be required.
Prohibitions. The following uses and alterations are not permitted:
1. Vehicle repair work.
2. Parking of buses, trucks and similar vehicles.
3. Partial or complete closing of required openings in exterior walls by tarpaulins
or any other means.
4. Dispensing of fuel.
Enclosed parking garages. Enclosed vehicle parking garages and portions thereof
that do not meet the definition of open parking garages shall be limited to the
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USE AND OCCUPANCY CLASSIFICATION
2B.6.4.2
2B.6.5
2B.6.5.1
2B.6.5.2
2B.6.6
2B.6.6.1
2B.6.6.2
2B.6.6.3
2B.6.6.4
2B.6.6.5
2B.6.6.6
2B.6.6.6.1
SBC 801
allowable heights and areas specified in Table 3.3. Roof parking is permitted.
Ventilation. A mechanical ventilation system shall be provided in accordance
with the SBC 501.
Motor fuel-dispensing facilities.
Construction. Motor fuel-dispensing facilities shall be constructed in accordance
with these code requirements and this section.
Canopies. Canopies under which fuels are dispensed shall have a clear,
unobstructed height of not less than 4.1 m to the lowest projecting element in the
vehicle drive-through area. Canopies and their supports over pumps shall be of
non-combustible materials, fire-retardant-treated wood complying with Chapter 4,
wood of Type IV sizes or of construction providing 1 hour fire resistance.
Combustible materials used in or on a canopy shall comply with one of the
following:
1. Shielded from the pumps by a noncombustible element of the canopy, or
wood of Type IV sizes;
2. Plastics covered by aluminum facing having a minimum thickness of 0.30 mm
or corrosion-resistant steel having a minimum base metal thickness of 0.41
mm. The plastic shall have a flame spread index of 25 or less and a smokedeveloped index of 450 or less when tested in the form intended for use in
accordance with ASTM E 84 and a self-ignition temperature of 343°C or
greater when tested in accordance with ASTM D 1929; or
3. Panels constructed of light-transmitting plastic materials shall be permitted to
be installed in canopies erected over motor vehicle fuel-dispensing station fuel
dispensers, provided the panels are located at least 3.1 m from any building on
the same property and face yards or streets not less than 12.2 m in width on
the other sides. The aggregate areas of plastics shall not exceed 93 m2. The
maximum area of any individual panel shall not exceed 9.3 m2.
Repair garages.
General. Repair garages shall be constructed in accordance with these code
requirements and this section. This occupancy shall not include motor fueldispensing facilities, as regulated in Section 2B.6.5.
Mixed uses. Mixed uses shall be allowed in the same building as a repair garage
subject to the provisions of Section 2A.2.3.
Ventilation. Repair garages shall be mechanically ventilated in accordance with
the SBC 501. The ventilation system shall be controlled at the entrance to the
garage.
Floor surface. Repair garage floors shall be of concrete or similar noncombustible
and nonabsorbent materials.
Exception: Slip-resistant, nonabsorbent, interior floor finishes having a critical
radiant flux not more than 0.45 W/cm2, as determined by NFPA 253, shall be
permitted.
Heating equipment. Heating equipment shall be installed in accordance with the
SBC 501.
Gas detection system. Repair garages used for repair of vehicles fueled by nonodorized gases, such as hydrogen and non-odorized LNG, shall be provided with
an approved flammable gas-detection system.
System design. The flammable gas-detection system shall be calibrated to the
types of fuels or gases used by vehicles to be repaired. The gas detection system
shall be designed to activate when the level of flammable gas exceeds 25 percent
of the lower explosive limit. Gas detection shall also be provided in lubrication or
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USE AND OCCUPANCY CLASSIFICATION
2B.6.6.6.2
2B.6.6.6.3
chassis repair pits of garages used for repairing non-odorized LNG-fueled
vehicles.
Operation. Activation of the gas detection system shall result in all of the
following:
1. Initiation of distinct audible and visual alarm signals in the repair garage.
2. Deactivation of all heating systems located in the repair garage.
3. Activation of the mechanical ventilation system, where the system is
interlocked with gas detection.
Failure of the gas detection system. Failure of the gas detection system shall
result in the deactivation of the heating system, activation of the mechanical
ventilation system when the system is interlocked with the gas detection system
and cause a trouble signal to sound in an approved location.
SECTION 2B.7
GROUP I-2
2B.7.1
General. Occupancies in Group I-2 shall comply with the provisions of this
section and other applicable provisions of these code requirements.
2B.7.2
Corridors. Corridors in occupancies in Group I-2 shall be continuous to the exits
and separated from other areas in accordance with Section 2B.7.3 except spaces
conforming to Sections 2B.7.2.1 through 2B.7.2.4.
Spaces of unlimited area. Waiting areas and similar spaces constructed as
required for corridors shall be permitted to be open to a corridor, only where all of
the following criteria are met:
1. The spaces are not occupied for patient sleeping units, treatment rooms,
hazardous or incidental use areas as defined in Section 2A.2.1.1.
2. The open space is protected by an automatic fire detection system installed in
accordance with Section 7.7.
3. The corridors, onto which the spaces open, in the same smoke compartment,
are protected by an automatic fire detection system installed in accordance
with Section 7.7, or the smoke compartment in which the spaces are located is
equipped throughout with quick-response sprinklers in accordance with
Section 7.3.3.2.
4. The space is arranged so as not to obstruct access to the required exits.
Nurses’ stations. Spaces for doctors’ and nurses’ charting, communications and
related clerical areas shall be permitted to be open to the corridor, when such
spaces are constructed as required for corridors.
Mental health treatment areas. Areas wherein mental health patients who are not
capable of self-preservation are housed, or group meeting or multipurpose
therapeutic spaces other than incidental use areas as defined in Section 2A.2.1.1,
under continuous supervision by facility staff, shall be permitted to be open to the
corridor, where the following criteria are met:
1. Each area does not exceed 140 m2.
2. The area is located to permit supervision by the facility staff.
3. The area is arranged so as not to obstruct any access to the required exits.
4. The area is equipped with an automatic fire detection system installed in
accordance with Section 7.7.2.
5. Not more than one such space is permitted in any one smoke compartment.
6. The walls and ceilings of the space are constructed as required for corridors.
Gift shops. Gift shops less than 46.5 m2 in area shall be permitted to be open to
the corridor provided the gift shop and storage areas are fully sprinklered and
2B.7.2.1
2B.7.2.2
2B.7.2.3
2B.7.2.4
SBC 801
2007
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USE AND OCCUPANCY CLASSIFICATION
storage areas are protected in accordance with Section 2A.2.1.1.
2B.7.3
2B.7.3.1
2B.7.3.2
2B.7.4
2B.7.4.1
2B.7.4.2
Corridor walls. Corridor walls shall be constructed as smoke partitions.
Corridor doors. Corridor doors, other than those in a wall required to be rated by
Section 2A.2.1.1 or for the enclosure of a vertical opening or an exit, shall not
have a required fire protection rating and shall not be required to be equipped with
self-closing or automatic-closing devices, but shall provide an effective barrier to
limit the transfer of smoke and shall be equipped with positive latching. Roller
latches are not permitted. Other doors shall conform to Section 4B.15.3.
Locking devices. Locking devices that restrict access to the patient room from the
corridor, and that are operable only by staff from the corridor side, shall not
restrict the means of egress from the patient room except for patient rooms in
mental health facilities.
Smoke barriers. Smoke barriers shall be provided to subdivide every story used
by patients for sleeping or treatment and to divide other stories with an occupant
load of 50 or more persons, into at least two smoke compartments. Such stories
shall be divided into smoke compartments with an area of not more than 2,092 m2
and the travel distance from any point in a smoke compartment to a smoke barrier
door shall not exceed 61 m. The smoke barrier shall be in accordance with Section
4B.9.
Refuge area. At least 2.8 m2 per patient shall be provided within the aggregate
area of corridors, patient rooms, treatment rooms, lounge or dining areas and other
low-hazard areas on each side of each smoke barrier. On floors not housing
patients confined to a bed or litter, at least 0.56 m2 per occupant shall be provided
on each side of each smoke barrier for the total number of occupants in adjoining
smoke compartments.
Independent egress. A means of egress shall be provided from each smoke
compartment created by smoke barriers without having to return through the
smoke compartment from which means of egress originated.
2B.7.5
Automatic sprinkler system. Smoke compartments containing patient sleeping
units shall be equipped throughout with an automatic fire sprinkler system in
accordance with Section 7.3.3.1.1. The smoke compartments shall be equipped
with approved quick-response or residential sprinklers in accordance with Section
7.3.3.2.
2B.7.6
Automatic fire detection. Corridors in nursing homes (both intermediate-care and
skilled nursing facilities), detoxification facilities and spaces permitted to be open
to corridors by Section 2B.7.2 shall be protected by an automatic fire detection
system installed in accordance with Section 7.7.
Exceptions:
1. Corridor smoke detection is not required where patient sleeping units are
provided with smoke detectors that comply with UL 268. Such detectors shall
provide a visual display on the corridor side of each patient sleeping unit and
an audible and visual alarm at the nursing station attending each unit.
2. Corridor smoke detection is not required where patient sleeping unit doors are
equipped with automatic door-closing devices with integral smoke detectors on
the unit sides installed in accordance with their listing, provided that the
integral detectors perform the required alerting function.
2B.7.7
Secured yards. Grounds are permitted to be fenced and gates therein are permitted
SBC 801
2007
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USE AND OCCUPANCY CLASSIFICATION
to be equipped with locks, provided that safe dispersal areas having 2.8 m2 for bed
and litter patients and 0.56 m2 for ambulatory patients and other occupants are
located between the building and the fence. Such provided safe dispersal areas
shall not be located less than 15.3 m from the building they serve.
SECTION 2B.8
GROUP I-3
2B.8.1
General. Occupancies in Group I-3 shall comply with the provisions of this
section and other applicable provisions of these code requirements (see Section
2A.8.4).
2B.8.2
Mixed occupancies. Portions of buildings with an occupancy in Group I-3 that are
classified as a different occupancy shall meet the applicable requirements of these
code requirements for such occupancies. Where security operations necessitate the
locking of required means of egress, provisions shall be made for the release of
occupants at all times.
Means of egress from detention and correctional occupancies that traverse other
use areas shall, as a minimum, conform to requirements for detention and
correctional occupancies.
Exception: It is permissible to exit through a horizontal exit into other contiguous
occupancies that do not conform to detention and correctional occupancy egress
provisions but that do comply with requirements set forth in the appropriate
occupancy, as long as the occupancy is not a high-hazard use.
2B.8.3
Means of egress. Except as modified or as provided for in this section, the
provisions of Chapter 8 shall apply.
Door width. Doors to resident sleeping units shall have a clear width of not less
than 711 mm.
Sliding doors. Where doors in a means of egress are of the horizontal-sliding type,
the force to slide the door to its fully open position shall not exceed 220 N with a
perpendicular force against the door of 220 N.
Spiral stairs. Spiral stairs that conform to the requirements of Section 8.3.3.3.9
are permitted for access to and between staff locations.
Exit discharge. Exits are permitted to discharge into a fenced or walled courtyard.
Enclosed yards or courts shall be of a size to accommodate all occupants, a
minimum of 15.3 m from the building with a net area of 1.4 m2 per person.
Sallyports. A sallyport shall be permitted in a means of egress where there are
provisions for continuous and unobstructed passage through the sallyport during
an emergency egress condition.
Vertical exit enclosures. One of the required vertical exit enclosures in each
building shall be permitted to have glazing installed in doors and interior walls at
each landing level providing access to the enclosure, provided that the following
conditions are met:
1. The vertical exit enclosure shall not serve more than four floor levels.
2. Vertical exit enclosure doors shall not be less than 3/4-hour fire doors
complying with Section 4B.14.2.
3. The total area of glazing at each floor level shall not exceed 3.23 m2 and
individual panels of glazing shall not exceed 0.84 m2.
4. The glazing shall be protected on both sides by an automatic fire sprinkler
system. The sprinkler system shall be designed to wet completely the entire
surface of any glazing affected by fire when actuated.
2B.8.3.1
2B.8.3.2
2B.8.3.3
2B.8.3.4
2B.8.3.5
2B.8.3.6
SBC 801
2007
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USE AND OCCUPANCY CLASSIFICATION
5. The glazing shall be in a gasketed frame and installed in such a manner that the
framing system will deflect without breaking (loading) the glass before the
sprinkler system operates.
6. Obstructions, such as curtain rods, drapery traverse rods, curtains, drapes or
similar materials shall not be installed between the automatic sprinklers and
the glazing.
2B.8.4
2B.8.4.1
2B.8.4.2
2B.8.4.3
2B.8.4.4
2B.8.5
SBC 801
Locks. Egress doors are permitted to be locked in accordance with the applicable
use condition. Doors from an area of refuge to the exterior are permitted to be
locked with a key in lieu of locking methods described in Section 2B.8.4.1. The
keys to unlock the exterior doors shall be available at all times and the locks shall
be operable from both sides of the door.
Remote release. Remote release of locks on doors in a means of egress shall be
provided with reliable means of operation, remote from the resident living areas, to
release locks on all required doors. In Occupancy Conditions 3 or 4, the
arrangement, accessibility and security of the release mechanism(s) required for
egress shall be such that with the minimum available staff at any time, the lock
mechanisms are capable of being released within 2 minutes.
Exception: Provisions for remote locking and unlocking of occupied rooms in
Occupancy Condition 4 are not required provided that not more than 10 locks are
necessary to be unlocked in order to move occupants from one smoke
compartment to a refuge area within 3 minutes. The opening of necessary locks
shall be accomplished with not more than two separate keys.
Power-operated doors and locks. Power-operated sliding doors or poweroperated locks for swinging doors shall be operable by a manual release
mechanism at the door, and either emergency power or a remote mechanical
operating release shall be provided.
Exception: Emergency power is not required in facilities with 10 locks or less
complying with the exception to Section 2B.8.4.1.
Redundant operation. Remote release, mechanically operated sliding doors or
remote release, mechanically operated locks shall be provided with a mechanically
operated release mechanism at each door, or shall be provided with a redundant
remote release control.
Relock capability. Doors remotely unlocked under emergency conditions shall
not automatically relock when closed unless specific action is taken at the remote
location to enable doors to relock.
Vertical openings. Vertical openings shall be enclosed in accordance with Section
4B.7.
Exception: A floor opening between floor levels of residential housing areas is
permitted without enclosure protection between the levels, provided that both of
the following conditions are met:
1. The entire normally occupied areas so interconnected are open and
unobstructed so as to enable observation of the areas by supervisory
personnel.
2. Means of egress capacity is sufficient to provide simultaneous egress for all
occupants from all interconnected levels and areas.
The height difference between the highest and lowest finished floor levels shall not
exceed 70 m. Each story, considered separately, has at least one-half of its
individual required means of egress capacity provided by exits leading directly out
of that story without traversing another story within the interconnected area.
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USE AND OCCUPANCY CLASSIFICATION
2B.8.6
2B.8.6.1
2B.8.6.2
2B.8.6.3
2B.8.7
2B.8.7.1
2B.8.7.2
2B.8.7.3
2B.8.7.4
2B.8.8
SBC 801
Smoke barrier. Occupancies in Group I-3 shall have smoke barriers complying
with Section 4B.9 to divide every story occupied by residents for sleeping, or any
other story having an occupant load of 50 or more persons, into at least two smoke
compartments.
Exception: Spaces having direct exit to one of the following, provided that the
locking arrangement of the doors involved complies with the requirements for
doors at the compartment barrier for the use condition involved:
1. A public way.
2. A building separated from the resident housing area by a 2 hours fireresistance-rated assembly or 15.3 m of open space.
3. A secured yard or court having a holding space 15.3 m from the housing area
that provides 0.56 m2 or more of refuge area per occupant, including residents,
staff and visitors.
Smoke compartments. The maximum number of residents in any smoke
compartment shall be 200. The travel distance to a door in a smoke barrier from
any room door required as exit access shall not exceed 46 m. The travel distance to
a door in a smoke barrier from any point in a room shall not exceed 61 m.
Refuge area. At least 0.56 m2 per occupant shall be provided on each side of each
smoke barrier for the total number of occupants in adjoining smoke compartments.
This space shall be readily available wherever the occupants are moved across the
smoke barrier in a fire emergency.
Independent egress. A means of egress shall be provided from each smoke
compartment created by smoke barriers without having to return through the
smoke compartment from which means of egress originates.
Subdivision of resident housing areas. Sleeping areas and any contiguous day
room, group activity space or other common spaces where residents are housed
shall be separated from other spaces in accordance with Sections 2B.8.7.1 through
2B.8.7.4.
Occupancy Conditions 3 and 4. Each sleeping area in Occupancy Conditions 3
and 4 shall be separated from the adjacent common spaces by a smoke-tight
partition where the travel distance from the sleeping area through the common
space to the exit access corridor exceeds 15.3 m.
Occupancy Condition 5. Each sleeping area in Occupancy Condition 5 shall be
separated from adjacent sleeping areas, corridors and common spaces by a smoketight partition. Additionally, common spaces shall be separated from the exit
access corridor by a smoke-tight partition.
Openings in room face. The aggregate area of openings in a solid sleeping room
face in Occupancy Conditions 2, 3, 4 and 5 shall not exceed 77,419 mm2. The
aggregate area shall include all openings including door undercuts, food passes
and grilles. Openings shall be not more than 914 mm above the floor. In
Occupancy Condition 5, the openings shall be closeable from the room side.
Smoke-tight doors. Doors in openings in partitions required to be smoke tight by
Section 2B8.7 shall be substantial doors, of construction that will resist the passage
of smoke. Latches and door closures are not required on cell doors.
Windowless buildings. For the purposes of this section, a windowless building or
portion of a building is one with non-openable windows, windows not readily
breakable or without windows. Windowless buildings shall be provided with an
engineered smoke control system to provide ventilation (mechanical or natural) in
accordance with Section 7.9 for each windowless smoke compartment.
2007
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USE AND OCCUPANCY CLASSIFICATION
SECTION 2B.9
MOTION PICTURE PROJECTION ROOMS
2B.9.1
2B.9.1.1
General. The provisions of this section shall apply to rooms in which ribbon-type
cellulose acetate or other safety film is utilized in conjunction with electric arc,
xenon or other light-source projection equipment that develops hazardous gases,
dust or radiation. Where cellulose nitrate film is utilized or stored, such rooms
shall comply with NFPA 40.
Projection room required. Every motion picture machine projecting film as
mentioned within the scope of this section shall be enclosed in a projection room.
Appurtenant electrical equipment, such as rheostats, transformers and generators,
shall be within the projection room or in an adjacent room of equivalent
construction.
2B.9.2
Construction of projection rooms. Every projection room shall be of permanent
construction consistent with the construction requirements for the type of building
in which the projection room is located. Openings are not required to be protected.
The room shall have a floor area of not less than 7.44 m2 for a single machine and
at least 3.7 m2 for each additional machine. Each motion picture projector,
floodlight, spotlight or similar piece of equipment shall have a clear working space
of not less than 762 mm by 762 mm on each side and at the rear thereof, but only
one such space shall be required between two adjacent projectors. The projection
room and the rooms appurtenant thereto shall have a ceiling height of not less than
2.3 m. The aggregate of openings for projection equipment shall not exceed 25
percent of the area of the wall between the projection room and the auditorium.
Openings shall be provided with glass or other approved material, so as to close
completely the opening.
2B.9.3
Projection room and equipment ventilation. Ventilation shall be provided in
accordance with the SBC 501.
Projection room.
Supply air. Each projection room shall be provided with adequate air supply inlets
so arranged as to provide well-distributed air throughout the room. Air inlet ducts
shall provide an amount of air equivalent to the amount of air being exhausted by
projection equipment. Air is permitted to be taken from the outside; from adjacent
spaces within the building, provided the volume and infiltration rate is sufficient;
or from the building air-conditioning system, provided it is so arranged as to
provide sufficient air when other systems are not in operation.
Exhaust air. Projection rooms are permitted to be exhausted through the lamp
exhaust system. The lamp exhaust system shall be positively interconnected with
the lamp so that the lamp will not operate unless there is the required airflow.
Exhaust air ducts shall terminate at the exterior of the building in such a location
that the exhaust air cannot be readily re-circulated into any air supply system. The
projection room ventilation system is permitted to also serve appurtenant rooms,
such as the generator and rewind rooms.
Each projection machine shall be provided with an exhaust duct that will draw air
from each lamp and exhaust it directly to the outside of the building. The lamp
exhaust is permitted to serve to exhaust air from the projection room to provide
room air circulation. Such ducts shall be of rigid materials except for a flexible
connector approved for the purpose. The projection lamp or projection room
exhaust system, or both, is permitted to be combined but shall not be
interconnected with any other exhaust or return system, or both, within the
2B.9.3.1
2B.9.3.1.1
2B.9.3.1.2
SBC 801
2007
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USE AND OCCUPANCY CLASSIFICATION
building.
2B.9.4
Lighting control. Provisions shall be made for control of the auditorium lighting
and the means of egress lighting systems of theaters from inside the projection
room and from at least one other convenient point in the building.
2B.9.5
Miscellaneous equipment. Each projection room shall be provided with rewind
and film storage facilities.
SECTION 2B.10
STAGES AND PLATFORMS
2B.10.1
Applicability. The provisions of this section shall apply to all parts of buildings
and structures that contain stages or platforms and similar appurtenances as herein
defined.
2B.10.2
Definitions. The following words and terms shall, for the purposes of this section
and as used elsewhere in these code requirements, have the meanings shown
herein.
FLY GALLERY. A raised floor area above a stage from which the movement of
scenery and operation of other stage effects are controlled.
GRIDIRON. The structural framing over a stage supporting equipment for
hanging or flying scenery and other stage effects.
PINRAIL. A rail on or above a stage through which belaying pins are inserted and
to which lines are fastened.
PLATFORM. A raised area within a building used for religious
teaching/lecturing, the presentation of music, plays or other entertainment; the
head table for special guests; the raised area for lecturers and speakers; boxing and
wrestling rings; theater-in-the-round stages; and similar purposes wherein there are
no overhead hanging curtains, drops, scenery or stage effects other than lighting
and sound. A temporary platform is one installed for not more than 30 days.
PROSCENIUM WALL. The wall that separates the stage from the auditorium or
assembly seating area.
STAGE. A space within a building utilized for entertainment or presentations,
which includes overhead hanging curtains, drops, scenery or stage effects other
than lighting and sound. Stage area shall be measured to include the entire
performance area and adjacent backstage and support areas not separated from the
performance area by fire-resistance-rated construction. Stage height shall be
measured from the lowest point on the stage floor to the highest point of the roof
or floor deck above the stage.
2B.10.3
2B.10.3.1
SBC 801
Stages. Stage construction shall comply with Sections 2B.10.3.1 through
2B.10.3.7.
Stage construction. Stages shall be constructed of materials as required for floors
for the type of construction of the building in which such stages are located.
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USE AND OCCUPANCY CLASSIFICATION
2B.10.3.1.1
2B.10.3.2
2B.10.3.3
2B.10.3.4
2B.10.3.5
2B.10.3.5.1
2B.10.3.5.2
2B.10.3.5.3
SBC 801
Exceptions:
1. Stages of Type IIB or IV construction with a nominal 51 mm wood deck,
provided that the stage is separated from other areas in accordance with
Section 2B.10.3.5.
2. In buildings of Type IIA, IIIA and VA construction, a fire-resistance-rated
floor is not required, provided the space below the stage is equipped with an
automatic fire-extinguishing system in accordance with Section 7.3 or 7.4.
3. In all types of construction, the finished floor shall be constructed of wood or
approved noncombustible materials. Openings through stage floors shall be
equipped with tight-fitting, solid wood trap doors with approved safety locks.
Stage height and area. Stage areas shall be measured to include the entire
performance area and adjacent backstage and support areas not separated from the
performance area by fire-resistance-rated construction. Stage height shall be
measured from the lowest point on the stage floor to the highest point of the roof
or floor deck above the stage.
Galleries, gridirons, catwalks and pinrails. Beams designed only for the
attachment of portable or fixed theater equipment, gridirons, galleries and catwalks
shall be constructed of approved materials consistent with the requirements for the
type of construction of the building; and a fire-resistance rating shall not be
required. These areas shall not be considered to be floors, stories, mezzanines or
levels in applying these code requirements.
Exception: Floors of fly galleries and catwalks shall be constructed of any
approved material.
Exterior stage doors. Where protection of openings is required, exterior exit
doors shall be protected with fire doors that comply with Section 4B.15. Exterior
openings that are located on the stage for means of egress or loading and
unloading purposes, and that are likely to be open during occupancy of the theater,
shall be constructed with vestibules to prevent air drafts into the auditorium.
Proscenium wall. Where the stage height is greater than 15.3 m, all portions of
the stage shall be completely separated from the seating area by a proscenium wall
with not less than a 2 hours fire-resistance rating extending continuously from the
foundation to the roof.
Proscenium curtain. The proscenium opening of every stage with a height greater
than 15.3 m shall be provided with a curtain of approved material or an approved
water curtain complying with Section 7.3.3.1.1. The curtain shall be designed and
installed to intercept hot gases, flames and smoke, and to prevent a glow from a
severe fire on the stage from showing on the auditorium side for a period of 20
minutes. The closing of the curtain from the full open position shall be effected in
less than 30 seconds, but the last 2.4 m of travel shall require not less than 5
seconds.
Activation. The curtain shall be activated by rate-of-rise heat detection installed in
accordance with Section 7.7.10 operating at a rate of temperature rise of 8 to 11°C
per minute, and by an auxiliary manual control.
Fire test. A sample curtain with a minimum of two vertical seams shall be
subjected to the standard fire test specified in ASTM E 119 for a period of 30
minutes. The curtain shall overlap the furnace edges by an amount that is
appropriate to seal the top and sides. The curtain shall have a bottom pocket
containing a minimum of 58 N/m of batten. The exposed surface of the curtain
shall not glow, and flame or smoke shall not penetrate the curtain during the test
period. Unexposed surface temperature and hose stream test requirements are not
applicable to the proscenium fire safety curtain test.
Smoke test. Curtain fabrics shall have a smoke-developed rating of 25 or less
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USE AND OCCUPANCY CLASSIFICATION
when tested in accordance with ASTM E 84.
2B.10.3.5.4 Tests. The completed proscenium curtain shall be subjected to operating tests prior
to the issuance of a certificate of occupancy.
Scenery. Combustible materials used in sets and scenery shall be rendered flame
resistant in accordance with Section 6.5. Foam plastics and materials containing
foam plastics shall comply with Section 11.3 of SBC 201 and these code
requirements.
2B.10.3.7 Stage ventilation. Emergency ventilation shall be provided for stages larger than
93 m2 in floor area, or with a stage height greater than 15.3 m. Such ventilation
shall comply with Section 2B.10.3.7.1 or 2B.10.3.7.2.
2B.10.3.7.1 Roof vents. Two or more vents constructed to open automatically by approved
heat-activated devices and with an aggregate clear opening area of not less than 5
percent of the area of the stage shall be located near the center and above the
highest part of the stage area. Supplemental means shall be provided for manual
operation of the ventilator. Curbs shall be provided as required for skylights in
Section 11.10.2 of SBC 201. Vents shall be labeled.
2B.10.3.7.2 Smoke control. Smoke control in accordance with Section 7.9 shall be provided to
maintain the smoke layer interface not less than 1.8 m above the highest level of
the assembly seating or above the top of the proscenium opening where a
proscenium wall is provided in compliance with Section 2B.10.3.4.
2B.10.3.6
2B.10.4
2B.10.4.1
2B.10.5
2B.10.5.1
2B.10.5.2
SBC 801
Platform construction. Permanent platforms shall be constructed of materials as
required for the type of construction of the building in which the permanent
platform is located. Permanent platforms are permitted to be constructed of fireretardant-treated wood for Type I, II, and IV construction where the platforms are
not more than 762 mm above the main floor, and not more than one-third of the
room floor area and not more than 279 m2 in area. Where the space beneath the
permanent platform is used for storage or any other purpose other than equipment,
wiring or plumbing, the floor construction shall not be less than 1hour fireresistant construction. Where the space beneath the permanent platform is used
only for equipment, wiring or plumbing, the underside of the permanent platform
need not be protected.
Temporary platforms. Platforms installed for a period of not more than 30 days
are permitted to be constructed of any materials permitted by the code. The space
between the floor and the platform above shall only be used for plumbing and
electrical wiring to platform equipment.
Dressing and appurtenant rooms. Dressing and appurtenant rooms shall comply
with Sections 2B.10.5.1 through 2B.10.5.4.
Separation from stage. Where the stage height is greater than 15.3 m, the stage
shall be separated from dressing rooms, scene docks, property rooms, workshops,
storerooms and compartments appurtenant to the stage and other parts of the
building by a fire barrier wall and horizontal assemblies or both with not less than
a 2 hours fire-resistance rating with approved opening protectives. For stage
heights of 15.3 m or less, the required stage separation shall be a fire barrier wall
and horizontal assemblies, or both, with not less a 1 hour fire-resistance rating
with approved opening protectives.
Separation from each other. Separate dressing rooms for each gender, scene
docks, property rooms, workshops, storerooms and compartments appurtenant to
the stage shall be separated from each other by fire barrier wall and horizontal
assemblies, or both, with not less than a 1 hour fire-resistance rating with approved
opening protectives.
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USE AND OCCUPANCY CLASSIFICATION
2B.10.5.3
2B.10.5.4
Opening protectives. Openings other than to trunk rooms and the necessary
doorways at stage level shall not connect such rooms with the stage, and such
openings shall be protected with fire door assemblies that comply with Section
4B.15.
Stage exits. At least one approved means of egress shall be provided from each
side of the stage; and from each side of the space under the stage. At least one
means of escape shall be provided from each fly gallery and from the gridiron. A
steel ladder, alternating tread stairway or spiral stairway is permitted to be
provided from the gridiron to a scuttle in the stage roof.
2B.10.6
Automatic sprinkler system. Stages shall be equipped with an automatic fireextinguishing system in accordance with Chapter 7. The system shall be installed
under the roof and gridiron, in the tie and fly galleries and in places behind the
proscenium wall of the stage and in dressing rooms, lounges, workshops and
storerooms accessory to such stages.
Exceptions:
1. Sprinklers are not required under stage areas less than 1.2 m in clear height
utilized exclusively for storage of tables and chairs, provided the concealed
space is separated from the adjacent spaces by not less than 15.9 mm Type X
gypsum board.
2. Sprinklers are not required for stages 93 m2 or less in area and 15.3 m or less
in height where curtains, scenery or other combustible hangings are not
retractable vertically. Combustible hangings shall be limited to a single main
curtain, borders, legs and a single backdrop.
2B.10.7
Standpipes. Standpipe systems shall be provided in accordance with Section 7.5.
SECTION 2B.11
SPECIAL AMUSEMENT BUILDINGS
2B.11.1
General. Special amusement buildings having an occupant load of 50 or more
shall comply with the requirements for the appropriate Group A occupancy and
this section. Amusement buildings having an occupant load of less than 50 shall
comply with the requirements for a Group B occupancy and this section.
Exception: Amusement buildings or portions thereof that are without walls or a
roof and constructed to prevent the accumulation of smoke.
For flammable decorative materials, see these code requirements.
2B.11.2
Special amusement building. A special amusement building is any temporary or
permanent building or portion thereof that is occupied for amusement,
entertainment or educational purposes and that contains a device or system that
conveys passengers or provides a walkway along, around or over a course in any
direction so arranged that the means of egress path is not readily apparent due to
visual or audio distractions or is intentionally confounded or is not readily
available because of the nature of the attraction or mode of conveyance through
the building or structure.
2B.11.3
Automatic fire detection. Special amusement buildings shall be equipped with an
automatic fire detection system in accordance with Section 7.7.
2B.11.4
Automatic sprinkler system. Special amusement buildings shall be equipped
throughout with an automatic sprinkler system in accordance with Section
SBC 801
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USE AND OCCUPANCY CLASSIFICATION
7.3.3.1.1. Where the special amusement building is temporary, the sprinkler water
supply shall be of an approved temporary means.
Exception: Automatic fire sprinklers are not required where the total floor area of
a temporary special amusement building is less than 93 m2 and the travel distance
from any point to an exit is less than 15.3 m.
2B.11.5
Alarm. Actuation of a single smoke detector, the automatic sprinkler system or
other automatic fire detection device shall immediately sound an alarm at the
building at a constantly attended location from which emergency action can be
initiated including the capability of manual initiation of requirements in Section
7.7.2.11.2.
2B.11.6
Emergency voice/alarm communications system. An emergency voice/alarm
communications system shall be provided in accordance with Sections 7.7.2.11
and 7.7.2.12.2, which is also permitted to serve as a public address system and
shall be audible throughout the entire special amusement building.
2B.11.7
Exit marking. Exit signs shall be installed at the required exit or exit access
doorways of amusement buildings. Approved directional exit markings shall also
be provided. Where mirrors, mazes or other designs are utilized that disguise the
path of egress travel such that they are not apparent, approved low level exit signs
and directional path markings shall be provided and located not more than 203 mm
above the walking surface and on or near the path of egress travel. Such markings
shall become visible in an emergency. The directional exit marking shall be
activated by the automatic fire detection system and the automatic sprinkler system
in accordance with Section 7.7.2.11.2.
2B.11.8
Interior finish. The interior finish shall be Class A in accordance with Section
6.3.1.
SECTION 2B.12
AIRCRAFT-RELATED OCCUPANCIES
2B.12.1
2B.12.1.1
2B.12.1.2
2.B.12.1.3
SBC 801
Airport traffic control towers.
General. The provisions of this section shall apply to airport traffic control towers
not exceeding 140 m2 per floor occupied only for the following uses:
1. Airport traffic control cab,
2. Electrical and mechanical equipment rooms,
3. Airport terminal radar and electronics rooms,
4. Office spaces incidental to the tower operation,
5. Lounges for employees, including sanitary facilities.
Type of construction. Airport traffic control towers shall be constructed to
conform to the height and area limitations of Table 2B.12.1.2.
Egress. A minimum of one exit stairway shall be permitted for airport traffic
control towers of any height provided that the occupant load per floor does not
exceed 15. The stairway shall conform to the requirements of Section 8.9. The
stairway shall be separated from elevators by a minimum distance of one-half of
the diagonal of the area served measured in a straight line. The exit stairway and
elevator hoistway are permitted to be located in the same shaft enclosure, provided
they are separated from each other by a 4-hour separation having no openings.
Such stairway shall be pressurized to a minimum of 43 Pa and a maximum of 101
Pa in the shaft relative to the building with stairway doors closed. Stairways need
2007
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USE AND OCCUPANCY CLASSIFICATION
not extend to the roof as specified in Section 8.9.12. The provisions of Section
2B.3 do not apply.
Exception: Smokeproof enclosures as set forth in Section 8.9.1.8 are not required
where required stairways are pressurized.
TABLE 2B.12.1.2
HEIGHT AND AREA LIMITATIONS FOR AIRPORT TRAFFIC
CONTROL TOWERS
HEIGHTa
MAXIMUM AREA
TYPE OF CONSTRUCTION
(meters)
(square meters)
IA
Unlimited
139.4
a.
2B.12.1.4
2B.12.1.5
2B.12.1.6
2B.12.2
2B.12.2.1
2B.12.2.2
2B.12.2.3
2B.12.2.4
2B.12.2.5
SBC 801
IB
73
139.4
IIA
30.5
139.4
IIB
26
139.4
IIIA
19.8
139.4
Height to be measured from grade to cab floor.
Automatic fire detection systems. Airport traffic control towers shall be provided
with an automatic fire detection system installed in accordance with Section 7.7.2.
Standby power. A standby power system that conforms to SBC 401 shall be
provided in airport traffic control towers more than 19.8 m in height. Power shall
be provided to the following equipment:
1. Pressurization equipment, mechanical equipment and lighting.
2. Elevator operating equipment.
3. Fire alarm and smoke detection systems.
Accessibility. Airport traffic control towers need not be accessible as specified in
the provisions of Chapter 9 of SBC 201.
Aircraft hangar.
Exterior walls. Exterior walls located less than 9.1 m from property lines, lot lines
or a public way shall have a fire-resistance rating not less than 2 hours.
Basements. Where hangars have basements, the floor over the basement shall be
of Type IA construction and shall be made tight against seepage of water, oil or
vapors. There shall be no opening or communication between the basement and
the hangar. Access to the basement shall be from outside only.
Floor surface. Floors shall be graded and drained to prevent water or fuel from
remaining on the floor. Floor drains shall discharge through an oil separator to the
sewer or to an outside vented sump.
Heating equipment. Heating equipment shall be placed in another room separated
by 2 hours fire-resistance-rated construction. Entrance shall be from the outside or
by means of a vestibule providing a two-doorway separation.
Exceptions:
1. Unit heaters suspended at least 3.1 m above the upper surface of wings or
engine enclosures of the highest aircraft that are permitted to be housed in the
hangar and at least 2.4 m above the floor in shops, offices and other sections of
the hangar communicating with storage or service areas.
2. A single interior door shall be allowed, provided the sources of ignition in the
appliances are at least 457 mm above the floor.
Finishing. The process of “doping,” involving use of a volatile flammable solvent,
or of painting, shall be carried on in a separate detached building equipped with
automatic fire-extinguishing equipment in accordance with Section 7.3.
2007
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USE AND OCCUPANCY CLASSIFICATION
2B.12.2.6
Fire suppression. Aircraft hangars shall be provided with fire suppression as
required in NFPA 409.
Exception: Group II hangars as defined in NFPA 409 storing private aircraft
without major maintenance or overhaul are exempt from foam suppression
requirements.
2B.12.3
Residential aircraft hangars. Residential aircraft hangars as defined in Section
2B.12.3.1 shall comply with Sections 2B.12.3.2 through 2B.12.3.6.
Definition. The following word and term shall, for the purposes of this chapter
and as used elsewhere in these code requirements, have the meaning shown herein.
2B.12.3.1
RESIDENTIAL AIRCRAFT HANGAR. An accessory building less than 186
m2 and 6.1 m in height, constructed on a one- or two-family residential property
where aircraft are stored. Such use will be considered as a residential accessory
use incidental to the dwelling.
2B.12.3.2
2B.12.3.3
2B.12.3.4
2B.12.3.5
2B.12.3.6
2B.12.4
2B.12.4.1
2B.12.4.2
2B.12.4.3
2B.12.4.4
2B.12.4.5
2B.12.4.6
SBC 801
Fire separation. A hangar shall not be attached to a dwelling unless separated by
walls having a fire-resistance rating of not less than 1 hour. Such separation shall
be continuous from the foundation to the underside of the roof and un-pierced
except for doors leading to the dwelling unit. Doors into the dwelling unit must be
equipped with self-closing devices and conform to the requirements of Section
4B.15 with at least a 102 mm noncombustible raised sill. Openings from a hanger
directly into a room used for sleeping purposes shall not be permitted.
Egress. A hangar shall provide two means of egress. One of the doors into the
dwelling shall be considered as meeting only one of the two means of egress.
Smoke detection. Smoke alarms shall be provided within the hangar in
accordance with Section 7.7.2.21.
Independent systems. Mechanical and plumbing drain, waste and vent (DWV)
systems installed within the hangar shall be independent of the systems installed
within the dwelling. Building sewer lines may connect outside the structures.
Exception: Smoke detector wiring and feed for electrical sub-panels in the hangar.
Height and area limits. Residential aircraft hangars shall not exceed 186 m2 in
area and 6.1 m in height.
Aircraft paint hangars. Aircraft painting operations where flammable liquids are
used in excess of the maximum allowable quantities per control area listed in
Table 2A.7.7(1) shall be conducted in an aircraft paint hangar that complies with
the provisions of Section 2B.12.4.
Occupancy group. Aircraft paint hangars shall be classified as Group H-2.
Aircraft paint hangars shall comply with the applicable requirements of these code
requirements and the SBC 201 for such occupancy.
Construction. The aircraft paint hangar shall be of Type I or II construction.
Operations. Only those flammable liquids necessary for painting operations shall
be permitted in quantities less than the maximum allowable quantities per control
area in Table 2A.7.7(1). Spray equipment cleaning operations shall be conducted
in a liquid use, dispensing and mixing room.
Storage. Storage of flammable liquids shall be in a liquid storage room.
Fire suppression. Aircraft paint hangars shall be provided with fire suppression as
required in NFPA 409.
Ventilation. Aircraft paint hangars shall be provided with ventilation as required
in the SBC 501.
2007
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USE AND OCCUPANCY CLASSIFICATION
2B.12.5
2B.12.5.1
2B.12.5.2
Heliports and helistops.
General. Heliports and helistops may be erected on buildings or other locations
where they are constructed in accordance with this section.
Definitions. The following words and terms shall, for the purposes of this chapter
and as used elsewhere in these code requirements, have the meanings shown
herein.
HELIPORT. An area of land or water or a structural surface that is used, or
intended for use, for the landing and taking off of helicopters, and any appurtenant
areas that are used, or intended for use, for heliport buildings and other heliport
facilities.
HELISTOP. The same as a “Heliport,” except that no fueling, de-fueling,
maintenance, repairs or storage of helicopters is permitted.
2B.12.5.3
2B.12.5.4
2B.12.5.5
2B.12.5.6
Size. The touchdown or landing area for helicopters of less than 1,588 kg shall be
a minimum of 6.1 m in length and width. The touchdown area shall be surrounded
on all sides by a clear area having a minimum average width at roof level of 4.6 m
but with no width less than 1.5 m.
Design. Helicopter landing areas and the supports thereof on the roof of a building
shall be noncombustible construction. Landing areas shall be designed to confine
any flammable liquid spillage to the landing area itself and provisions shall be
made to drain such spillage away from any exit or stairway serving the helicopter
landing area or from a structure housing such exit or stairway. For structural
design requirements, see SBC 301.
Means of egress. The means of egress from heliports and helistops shall comply
with the provisions of Chapter 8. Landing areas located on buildings or structures
shall have two or more means of egress. For landing platforms or roof areas less
than 18.3 m in length, or less than 187 m2 in area, the second means of egress may
be a fire escape or ladder leading to the floor below.
Rooftop heliports and helistops. Rooftop heliports and helistops shall comply
with NFPA 418.
SECTION 2B.13
COMBUSTIBLE STORAGE
2B.13.1
General. High-piled stock or rack storage in any occupancy group shall comply
with these code requirements.
2B.13.2
Attic, under-floor and concealed spaces. Attic, under-floor and concealed spaces
used for storage of combustible materials shall be protected on the storage side as
required for 1 hour fire-resistant construction. Openings shall be protected by
assemblies that are self-closing and are of noncombustible construction or solid
wood core not less than 45 mm in thickness.
Exceptions:
1. Areas protected by approved automatic sprinkler systems.
2. Group R-3 and U occupancies.
SECTION 2B.14
HAZARDOUS MATERIALS
2B.14.1
SBC 801
General. The provisions of this section shall apply to buildings and structures
2007
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USE AND OCCUPANCY CLASSIFICATION
occupied for the manufacturing, processing, dispensing, use or storage of
hazardous materials.
2B.14.1.1 Other provisions. Buildings and structures with an occupancy in Group H shall
also comply with the applicable provisions of Section 2B.15 and these code
requirements.
2B.14.1.2 Materials. The safe design of hazardous material occupancies is material
dependent. Individual material requirements are also found in Sections 2A.7 and
2B.15, and in the SBC 501 and these code requirements.
2B.14.1.2.1 Materials. The safe design of hazardous material occupancies is material
dependent. Individual material requirements are also found in Sections 2A.7 and
2B.15, and in the SBC 501 and these code requirements.
2B.14.1.2.2 Aerosols. Level 2 and 3 aerosol products shall be stored and displayed in
accordance with the code requirements. See Section 2A.11.2 and these code
requirements for occupancy group requirements.
2B.14.1.3 Information required. Separate floor plans shall be submitted for buildings and
structures with an occupancy in Group H, identifying the locations of anticipated
contents and processes so as to reflect the nature of each occupied portion of every
building and structure. A report identifying hazardous materials including, but not
limited to, materials representing hazards that are classified in Group H to be
stored or used, shall be submitted and the methods of protection from such hazards
shall be indicated on the construction documents. The opinion and report shall be
prepared by a qualified person, firm or corporation approved by the concerning
building official and shall be provided without charge to the enforcing agency.
2B.14.2
2B.14.2.1
2B.14.2.2
Control areas. Control areas shall be those spaces within a building where
quantities of hazardous materials not exceeding the maximum quantities allowed
by these code requirements are stored, dispensed, used or handled.
Construction requirements. Control areas shall be separated from each other by
not less than a 1 hour fire barrier constructed in accordance with Chapter 4.
Number. The maximum number of control areas within a building shall be in
accordance with Table 2B.14.2.2.
TABLE 2B.14.2.2
DESIGN AND NUMBER OF CONTROL AREAS
FLOOR LEVEL
Higher than 9
7-9
6
5
Above grade
4
3
2
1
1
Below grade
2
Lower than 2
PERCENTAGE OF
THE MAXIMUM
ALLOWABLE
QUANTITY PER
CONTROL AREAa
5
5
12.5
12.5
12.5
50
75
100
75
50
Not Allowed
NUMBER OF
CONTROL
AREAS PER
FLOORb
1
2
2
2
2
2
3
4
3
2
Not Allowed
FIRERESISTANCE
RATING FOR
FIRE BARRIERS
IN HOURSc
2
2
2
2
2
1
1
1
1
1
Not Allowed
a. Percentages shall be of the maximum allowable quantity per control area shown in Tables 2A.7.7(1) and 2A.7.7(2),
with all increases allowed in the notes to those tables.
b. There shall be a maximum of two control areas per floor in Group M occupancies and in buildings or portions of
buildings having Group S occupancies with storage conditions and quantities in accordance with Section 2B.14.2.4.
c. Fire barriers shall include walls and floors as necessary to provide separation from other portions of the building.
SBC 801
2007
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USE AND OCCUPANCY CLASSIFICATION
2B.14.2.3
2B.14.2.4
2B.14.3
Separation. The required fire-resistance rating for fire barrier assemblies shall be
in accordance with Table 2B.14.2.2. The floor construction of the control area, and
the construction supporting the floor of the control area, shall have a minimum 2
hours fire-resistance rating.
Hazardous material in Group M display and storage areas and in Group S
storage areas. The aggregate quantity of nonflammable solid and nonflammable
or noncombustible liquid hazardous materials permitted within a single control
area of a Group M or S occupancy or an outdoor control area is permitted to
exceed the maximum allowable quantities per control area specified in Tables
2A.7.7(1) and 2A.7.7(2) without classifying the building or use as a Group H
occupancy, provided that the materials are displayed and stored in accordance with
these code requirements and quantities do not exceed the maximum allowable
specified in Table 2B.14.2.4.
Ventilation. Rooms, areas or spaces of Group H in which explosive, corrosive,
combustible, flammable or highly toxic dusts, mists, fumes, vapors or gases are or
may be emitted due to the processing, use, handling or storage of materials shall be
mechanically ventilated as required by these code requirements and the SBC 501.
Ducts conveying explosives or flammable vapors, fumes or dusts shall extend
directly to the exterior of the building without entering other spaces. Exhaust ducts
shall not extend into or through ducts and plenums.
TABLE 2B.14.2.4
MAXIMUM ALLOWABLE QUANTITY PER INDOOR AND OUTDOOR CONTROL AREA IN GROUP M AND S
OCCUPANCIES NONFLAMMABLE SOLIDS AND NONFLAMMABLE AND NONCOMBUSTIBLE LIQUIDS d,e,f
MAXIMUM ALLOWABLE QUANTITY PER
CONTROL AREA
Solids
Liquids
kilograms
liters
CONDITION
Materiala
Class
A. Health-hazard materials—nonflammable and noncombustible solids and liquids
1. Corrosivesb, c
Not Applicable
4,427
2. Highly toxics
Not Applicable
9.1b, c
b, c
3. Toxics
Not Applicable
454
B. Physical-hazard materials—nonflammable and noncombustible solids and liquids
4
Not Allowed
3
522g
b, c
1. Oxidizers
2
1,022h
1
8,172i, j
4
Not Allowed
3
250
b, c
2. Unstable (reactives)
2
522
1
Not Limited
3b, c
250
3. Water (reactives)
2b, c
522
1
Not Limited
3,690
7.6b, c
379
Not Allowed
435
852
6,813i, j
Not Allowed
208
435
Not Limited
208
435
Not Limited
a. Hazard categories are as specified in these code requirements.
b. Maximum allowable quantities shall be increased 100 percent in buildings that are sprinklered in accordance with Section 7.3.3.1.1.
When Note c also applies, the increase for both notes shall be applied accumulatively.
c. Maximum allowable quantities shall be increased 100 percent when stored in approved storage cabinets, in accordance with these code
requirements. When Note b also applies, the increase for both notes shall be applied accumulatively.
d. See Table 2B.14.2.2 for design and number of control areas.
e. Allowable quantities for other hazardous material categories shall be in accordance with Section 2A.7.
f. Maximum quantities shall be increased 100 percent in outdoor control areas.
g. Maximum amounts are permitted to be increased to 1,022 kilograms when individual packages are in the original sealed containers from
the manufacturer or packager and do not exceed 4.5 kilograms each.
h. Maximum amounts are permitted to be increased to 2,043 kilograms when individual packages are in the original sealed containers from
the manufacturer or packager and do not exceed 4.5 kilograms each.
i. Quantities are unlimited where protected by an automatic sprinkler system.
j. Quantities are unlimited in an outdoor control area.
SBC 801
2007
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USE AND OCCUPANCY CLASSIFICATION
Exception: Ducts conveying vapor or fumes having flammable constituents less
than 25 percent of their lower flammable limit (LFL) are permitted to pass through
other spaces.
Emissions generated at workstations shall be confined to the area in which they
are generated as specified in these code requirements and the SBC 501.
The location of supply and exhaust openings shall be in accordance with the SBC
501. Exhaust air contaminated by highly toxic material shall be treated in
accordance with these code requirements.
A manual shutoff control for ventilation equipment required by this section shall
be provided outside the room adjacent to the principal access door to the room.
The switch shall be of the break-glass type and shall be labeled: VENTILATION
SYSTEM EMERGENCY SHUTOFF.
2B.14.4
Hazardous material systems. Systems involving hazardous materials shall be
suitable for the intended application. Controls shall be designed to prevent
materials from entering or leaving process or reaction systems at other than the
intended time, rate or path. Automatic controls, where provided, shall be designed
to be failing safe.
2B.14.5
Inside storage, dispensing and use. The inside storage, dispensing and use of
hazardous materials in excess of the maximum allowable quantities per control
area of Tables 2A.7.7(1) and 2A.7.7(2) shall be in accordance with Sections
2B.14.5.1 through 2B.14.5.5 of these code requirements and the SBC 201.
Explosion control. Explosion control shall be provided in accordance with these
code requirements as required by Table 2B.14.5.1 where quantities of hazardous
materials specified in that table exceed the maximum allowable quantities in Table
2A.7.7(1) or where a structure, room or space is occupied for purposes involving
explosion hazards as required by Section 2B.15 or these code requirements.
Monitor control equipment. Monitor control equipment shall be provided where
required by these code requirements.
Automatic fire detection systems. Group H occupancies shall be provided with
an automatic fire detection system in accordance with Section 7.7.2.
Standby or emergency power. Where mechanical ventilation, treatment systems,
temperature control, alarm, detection or other electrically operated systems are
required, such systems shall be provided with an emergency or standby power
system in accordance with the SBC 401.
Exceptions:
1. Storage areas for Class I and II oxidizers.
2. Storage areas for Class III, IV and V organic peroxides.
3. Storage, use and handling areas for highly toxic or toxic materials as provided
for in these code requirements.
4. Standby power for mechanical ventilation, treatment systems and temperature
control systems shall not be required where an approved fail-safe engineered
system is installed.
2B.14.5.1
2B.14.5.2
2B.14.5.3
2B.14.5.4
2B.14.5.5
SBC 801
Spill control, drainage and containment. Rooms, buildings or areas occupied for
the storage of solid and liquid hazardous materials shall be provided with a means
to control spillage and to contain or drain off spillage and fire protection water
discharged in the storage area where required in these code requirements. The
methods of spill control shall be in accordance with these code requirements.
2007
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USE AND OCCUPANCY CLASSIFICATION
TABLE 2B.14.5.1
EXPLOSION CONTROL REQUIREMENTSa
MATERIAL
HAZARD CATEGORY
Combustible dustsc
Cryogenic flammables
Explosives
Flammable gas
Flammable liquid
Organic peroxides
Oxidizer liquids and solids
Pyrophoric gas
Unstable (reactive)
Water-reactive liquids and
solids
SPECIAL USES
Acetylene generator rooms
Grain processing
Liquefied petroleum gasdistribution facilities
Where explosion hazards existf
a.
b.
c.
d.
e.
f.
g.
CLASS
EXPLOSION CONTROL METHODS
Explosion (deflagration) venting
or explosion (deflagration)
Barricade
construction
prevention systemsb
—
—
Division 1.1
Division 1.2
Division 1.3
Division 1.4
Division 1.5
Division 1.6
Gaseous
Liquefied
IAd
IBe
U
I
4
—
4
3 Detonable
3 Nondetonable
3
2g
Not Required
Not Required
Required
Required
Not Required
Not Required
Required
Required
Not Required
Not Required
Not Required
Not Required
Required
Required
Required
Not Required
Required
Required
Not Required
Not Required
Not Required
Required
Required
Not Required
Not Required
Required
Required
Not Required
Not Required
Required
Required
Required
Required
Not Permitted
Not Permitted
Not Permitted
Required
Not Permitted
Not Permitted
Required
Required
Required
—
—
Not Required
Not Required
Required
Required
—
Not Required
Required
Detonation
Deflagration
Required
Not Required
Not Permitted
Required
See Section 2B.14.1.3.
See other chapters of these code requirements.
As generated during manufacturing or processing. See definition of “Combustible dust” in Chapter 2.
Storage or use.
In open use or dispensing.
Rooms containing dispensing and use of hazardous materials when an explosive environment can occur because of the
characteristics or nature of the hazardous materials or as a result of the dispensing or use process.
A method of explosion control shall be provided when Class 2 water-reactive materials can form potentially explosive
mixtures.
2B.14.6
2B.14.6.1
SBC 801
Outdoor storage, dispensing and use. The outdoor storage, dispensing and use of
hazardous materials shall be in accordance with these code requirements.
Weather protection. Where weather protection is provided for sheltering outdoor
hazardous material storage or use areas, such storage or use shall be considered
outdoor storage or use, provided that all of the following conditions are met:
1. Structure supports and walls shall not obstruct more than one side or more than
25 percent of the perimeter of the storage or use area.
2. The distance from the structure and the structure supports to buildings, lot
lines, public ways or means of egress to a public way shall not be less than the
distance required for an outside hazardous material storage or use area without
weather protection.
3. The overhead structure shall be of approved noncombustible construction with
a maximum area of 140 m2.
Exception: The increases permitted by Section 3.6 apply.
2007
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USE AND OCCUPANCY CLASSIFICATION
2B.14.7
2B.14.7.1
2B.14.7.2
2B.14.7.3
Emergency alarms. Emergency alarms for the detection and notification of an
emergency condition in Group H occupancies shall be provided as set forth herein.
Storage. An approved manual emergency alarm system shall be provided in
buildings, rooms or areas used for storage of hazardous materials. Emergency
alarm-initiating devices shall be installed outside of each interior exit or exit
access door of storage buildings, rooms or areas. Activation of an emergency
alarm-initiating device shall sound a local alarm to alert occupants of an
emergency situation involving hazardous materials.
Dispensing, use and handling. Where hazardous materials having a hazard
ranking of 3 or 4 in accordance with NFPA 704 are transported through corridors
or exit enclosures, there shall be an emergency telephone system, a local manual
alarm station or an approved alarm-initiating device at not more than 45.7 m
intervals and at each exit and exit access doorway throughout the transport route.
The signal shall be relayed to an approved central, proprietary or remote station
service or constantly attended on-site location and shall also initiate a local audible
alarm.
Supervision. Emergency alarm systems shall be supervised by an approved
central, proprietary or remote station service or shall initiate an audible and visual
signal at a constantly attended on-site location.
SECTION 2B.15
GROUPS H-1, H-2, H-3, H-4 AND H-5
2B.15.1
Scope. The provisions of this section shall apply to the storage and use of
hazardous materials in excess of the maximum allowable quantities per control
area listed in Section 2A.7.9. Buildings and structures with an occupancy in Group
H shall also comply with the applicable provisions of Section 2B.14 and these
code requirements.
2B.15.2
Definitions. The following words and terms shall, for the purposes of this chapter
and as used elsewhere in the code, have the meanings shown herein.
CONTINUOUS GAS-DETECTION SYSTEM. A gas detection system where
the analytical instrument is maintained in continuous operation and sampling is
performed without interruption. Analysis is allowed to be performed on a cyclical
basis at intervals not to exceed 30 minutes.
EMERGENCY CONTROL STATION. An approved location on the premises
where signals from emergency equipment are received and which is staffed by
trained personnel.
EXHAUSTED ENCLOSURE. An appliance or piece of equipment that consists
of a top, a back and two sides providing a means of local exhaust for capturing
gases, fumes, vapors and mists. Such enclosures include laboratory hoods, exhaust
fume hoods and similar appliances and equipment used to locally retain and
exhaust the gases, fumes, vapors and mists that could be released. Rooms or areas
provided with general ventilation, in themselves, are not exhausted enclosures.
SBC 801
FABRICATION AREA. An area within a semiconductor fabrication facility and
related research and development areas in which there are processes using
hazardous production materials. Such areas are allowed to include ancillary rooms
or areas such as dressing rooms and offices that are directly related to the
2007
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USE AND OCCUPANCY CLASSIFICATION
fabrication area processes.
FLAMMABLE VAPORS OR FUMES. The concentration of flammable
constituents in air that exceed 10 percent of their lower flammable limit (LFL).
GAS CABINET. A fully enclosed, noncombustible enclosure used to provide an
isolated environment for compressed gas cylinders in storage or use. Doors and
access ports for exchanging cylinders and accessing pressure-regulating controls
are allowed to be included.
GAS ROOM. A separately ventilated, fully enclosed room in which only
compressed gases and associated equipment and supplies are stored or used.
HAZARDOUS PRODUCTION MATERIAL (HPM). A solid, liquid or gas
associated with semiconductor manufacturing that has a degree-of-hazard rating in
health, flammability or reactivity of Class 3 or 4 as ranked by NFPA 704 and
which is used directly in research, laboratory or production processes that have as
their end product materials that are not hazardous.
HPM FLAMMABLE LIQUID. An HPM liquid that is defined as either a Class I
flammable liquid or a Class II or Class IIIA combustible liquid.
HPM ROOM. A room used in conjunction with or serving a Group H-5
occupancy, where HPM is stored or used and which is classified as a Group H-2,
H-3 or H-4 occupancy.
IMMEDIATELY DANGEROUS TO LIFE AND HEALTH (IDLH). The
concentration of airborne contaminants which poses a threat of death, immediate
or delayed permanent adverse health effects, or effects that could prevent escape
from such an environment. This contaminant concentration level is established by
the National Institute of Occupational Safety and Health (NIOSH) based on both
toxicity and flammability. It generally is expressed in parts per million by volume
(ppm v/v) or milligrams per cubic meter (mg/m3). If adequate data do not exist for
precise establishment of IDLH concentrations, an independent certified industrial
hygienist, industrial toxicologist, appropriate regulatory agency or other source
approved by the code official shall make such determination.
LIQUID. A material that has a melting point that is equal to or less than 20°C and
a boiling point that is greater than 20°C at 101 kPa. When not otherwise identified,
the term “liquid” includes both flammable and combustible liquids.
LIQUID STORAGE ROOM. A room classified as a Group H-3 occupancy used
for the storage of flammable or combustible liquids in an unopened condition.
LIQUID USE, DISPENSING AND MIXING ROOMS. Rooms in which Class
I, II and IIIA flammable or combustible liquids are used, dispensed or mixed in
open containers.
LOWER FLAMMABLE LIMIT (LFL). The minimum concentration of vapor
in air at which propagation of flame will occur in the presence of an ignition
source. The LFL is sometimes referred to as “LEL” or “lower explosive limit.”
SBC 801
2007
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USE AND OCCUPANCY CLASSIFICATION
NORMAL TEMPERATURE AND PRESSURE (NTP). A temperature of 21°C
and a pressure of 101 kPa.
SERVICE CORRIDOR. A fully enclosed passage used for transporting HPM
and purposes other than required means of egress.
SOLID. A material that has a melting point, decomposes or sublimes at a
temperature greater than 20°C.
STORAGE, HAZARDOUS MATERIALS.
1. The keeping, retention or leaving of hazardous materials in closed
containers, tanks, cylinders or similar vessels, or
2. Vessels supplying operations through closed connections to the vessel.
USE (MATERIAL). Placing a material into action, including solids, liquids and
gases.
WORKSTATION. A defined space or an independent principal piece of
equipment using HPM within a fabrication area where a specific function,
laboratory procedure or research activity occurs. Approved or listed hazardous
materials storage cabinets, flammable liquid storage cabinets or gas cabinets
serving a workstation are included as part of the workstation. A workstation is
allowed to contain ventilation equipment, fire protection devices, detection
devices, electrical devices and other processing and scientific equipment.
2B.15.3
2B.15.3.1
SBC 801
Location on property. Group H shall be located on property in accordance with
the other provisions of this chapter. In Group H-2 or H-3, not less than 25 percent
of the perimeter wall of the occupancy shall be an exterior wall.
Exceptions:
1. Liquid use, dispensing and mixing rooms having a floor area of not more than
46.5 m2 need not be located on the outer perimeter of the building where they
are in accordance with these code requirements and NFPA 30.
2. Liquid storage rooms having a floor area of not more than 93 m2 need not be
located on the outer perimeter where they are in accordance with these code
requirements and NFPA 30.
3. Spray paint booths that comply with these code requirements need not be
located on the outer perimeter.
Group H minimum distance to lot lines. Regardless of any other provisions,
buildings containing Group H occupancies shall be set back a minimum distance
from lot lines as set forth in Items 1 through 4 below. Distances shall be measured
from the walls enclosing the occupancy to lot lines, including those on a public
way. Distances to assumed property lines drawn for the purposes of determination
of exterior wall and opening protection are not to be used to establish the
minimum distance for separation of buildings on sites where explosives are
manufactured or used when separation is provided in accordance with the quantity
distance tables specified for explosive materials in these code requirements.
1. Group H-1. Not less than 23 m and not less than required by these code
requirements.
Exceptions:
1. Fireworks manufacturing buildings separated in accordance with NFPA
1124.
2. Buildings containing the following materials when separated in accordance
2007
2/62
USE AND OCCUPANCY CLASSIFICATION
with Table 2B.15.3.1:
2.1 Organic peroxides, unclassified detonable.
2.2 Unstable reactive materials Class 4.
2.3 Unstable reactive materials, Class 3 detonable.
2.4 Detonable pyrophoric materials.
2. Group H-2. Not less than 9.1 m where the area of the occupancy exceeds 93 m2
and it is not required to be located in a detached building.
3. Groups H-2 and H-3. Not less than 15.3 m where a detached building is
required (see Table 2B.15.3.2).
4. Groups H-2 and H-3. Occupancies containing materials with explosive
characteristics shall be separated as required by these code requirements.
Where separations are not specified, the distances required shall not be less
than the distances required by Table 2B.15.3.1.
TABLE 2B.15.3.1
MINIMUM SEPARATION DISTANCES FOR BUILDINGS CONTAINING EXPLOSIVE MATERIALS
QUANTITY OF
EXPLOSIVE
MATERIALa
Kilograms
Kilograms
over
not over
0.9
2.3
2.3
4.5
4.5
9.1
9.1
13.6
13.6
18.2
18.2
22.7
22.7
34.1
34.1
45.4
45.4
56.8
56.8
68.1
68.1
90.8
90.8
113.5
113.5
136.2
136.2
181.6
181.6
227.0
227.0
272.4
272.4
317.8
317.8
363.2
363.2
408.6
408.6
454.0
454.0
544.8
544.8
635.6
635.6
726.4
726.4
817.2
817.2
454
908
1,135
1,135
1,362
1,362
1,816
1,816
2,270
2,270
2,724
2,724
3,178
3,178
3,632
3,632
4,086
4,086
4,540
4,540
5,448
SBC 801
MINIMUM DISTANCE (meters)
Lot lines and inhabited buildingsc
b
Barricaded
d
21
27
34
38
43
46
52
58
61
66
72
78
82
90
98
104
108
114
119
122
130
137
143
149
154
166
177
194
209
223
235
244
255
264
267
(Continued)
2007
Unbarricaded
43
55
67
76
85
91
104
116
122
131
143
155
165
180
195
207
216
229
238
244
259
274
287
299
308
332
354
387
418
445
469
488
509
527
533
Separation of
magazinesd,e, f
3.7
4.9
6.1
6.7
7.3
8.5
9.1
9.8
11
11.6
12.8
14
14.6
16.5
17.7
19
19.5
20
21
22
24
25
26
27
27
30
32
35
37
40
41
44
46
48
50
2/63
USE AND OCCUPANCY CLASSIFICATION
TABLE 2B.15.3.1—Continued
MINIMUM SEPARATION DISTANCES FOR BUILDINGS CONTAINING EXPLOSIVE MATERIALS
QUANTITY OF EXPLOSIVE
MATERIALa
Kilograms
Kilograms not
over
over
5,448
6,356
6,356
7,264
7,264
8,172
8,172
9,080
9,080
11,350
11,350
13,620
13,620
15,890
15,890
18,160
18,160
20,430
20,430
22,700
22,700
24,970
24,970
27,240
27,240
29,510
29,510
31,780
31,780
34,050
34,050
36,320
36,320
38,590
38,590
40,860
40,860
43,130
43,130
45,400
45,400
49,940
49,940
54,480
54,480
59,020
59,020
63,560
63,560
68,100
68,100
72,640
72,640
77,180
77,180
81,720
81,720
86,260
86,260
90,800
90,800
95,340
95,340
104,420
104,420
113,500
113,500
124,850
124,850
136,200
MINIMUM DISTANCE (meters)
Lot linesb and inhabited buildingsc
Separation of
magazinesd, e, f
Barricadedd
Unbarricaded
270
274
287
297
322
344
367
389
408
427
445
462
477
491
504
517
527
536
546
553
559
565
572
576
579
590
599
607
613
619
626
640
657
675
693
539
549
573
594
610
610
610
610
610
610
610
610
610
610
610
610
610
610
610
610
610
610
610
610
610
610
610
610
613
619
626
640
657
675
693
53
55
57
60
64
68
73
76
79
82
85
88
91
94
98
101
104
107
110
113
119
125
131
137
143
149
155
162
168
174
180
192
204
219
235
a. The number of kilograms of explosives listed is the number of pounds of trinitrotoluene (TNT) or the equivalent kilograms of
other explosive.
b. The distance listed is the distance to lot line, including lot lines at public ways.
c. For the purpose of this table, an inhabited building is any building on the same property that is regularly occupied by people.
Where two or more buildings containing explosives or magazines are located on the same property, each building or magazine
shall comply with the minimum distances specified from inhabited buildings and, in addition, they shall be separated from each
other by not less than the distance shown for “Separation of magazines,” except that the quantity of explosive materials contained
in detonator buildings or magazines shall govern in regard to the spacing of said buildings or magazines from buildings or
magazines, as a group, shall be considered as one building or magazine, and the total quantity of explosive materials stored in
such group shall be treated as if the explosive were in a single building or magazine located on the site of any building or
magazine of the group, and shall comply with the minimum distance specified from other magazines or inhabited buildings.
d. Barricades shall effectively screen the building containing explosives from other buildings, public ways or magazines. Where
mounds or reverted walls of earth are used for barricades, they shall not be less than 0.9 meter in thickness. A straight line from
the top of any side wall of the building containing explosive materials to the eave line of any other building, magazine or a point
3.7 meters. Above the centerline of a public way shall pass through the barricades.
e. Magazine is a building or structure, other than an operating building, approved for storage of explosive materials. Portable or
mobile magazines not exceeding 11 m2 in area need not comply with the requirements of SBC 201, however, all magazines shall
comply with these code requirements.
f. The distance listed is permitted be reduced by 50 percent where approved natural or artificial barriers are provided in accordance
with the requirements in Note d.
SBC 801
2007
2/64
USE AND OCCUPANCY CLASSIFICATION
2B.15.3.2
Group H-1 and H-2 or H-3 detached buildings. Where a detached building is
required by Table 2B.15.3.2, there are no requirements for wall and opening
protection based on location on property.
TABLE 2B.15.3.2
REQUIRED DETACHED STORAGE
DETACHED STORAGE IS REQUIRED WHEN THE QUANTITY OF MATERIAL EXCEEDS
THAT LISTED HEREIN
Solids and Liquids
Gases
Material
Class
(tonnes)a,b
(cubic meters)a,b
Maximum Allowable
Division 1.1
Quantity
Maximum Allowable
Division 1.2
Quantity
Maximum Allowable
Division 1.3
Quantity
Explosives
Not Applicable
Maximum Allowable
Division 1.4
Quantity
Division 1.4c
0.907
Maximum Allowable
Division 1.5
Quantity
Maximum Allowable
Division 1.7
Quantity
Maximum Allowable
Maximum Allowable
Oxidizers
Class 4
Quantity
Quantity
Maximum Allowable
Maximum Allowable
Unstable (reactives) detonable
Class 3 or 4
Quantity
Quantity
Class 3
1,089
Not Applicable
Oxidizer, liquids and solids
Class 2
1,814
Not Applicable
Maximum Allowable
Detonable
Not Applicable
Quantity
Maximum Allowable
Organic peroxides
Class I
Not Applicable
Quantity
Class II
22.7
Not Applicable
Class III
45.4
Not Applicable
Class 3
0.907
57
Unstable (reactives) nondetonable
Class 2
22.7
283
Class 3
0.907
Not Applicable
Water reactives
Class 2
22.7
Not Applicable
Pyrphoric gases
Not Applicable
Not Applicable
57
a. For materials that are detonable, the distance to other buildings or lot lines shall be as specified in Table 2B.15.3.1 based
on trinitrotoluene (TNT) equivalence of the material. For materials classified as explosives, see Chapter 31. For all other
materials, the distance shall be as indicated in Section 2B.15.3.1.
b. Maximum Allowable Quantity” means the maximum allowable quantity per control area set forth in Table 2A.7.7(1).
c. Limited to Division 1.4 materials and articles, including articles packaged for shipment, that are not regulated as an
explosive under MOI (Bureau of Alcohol, Tobacco and Firearms (BATF)) regulations or unpackaged articles used in
process operations that do not propagate a detonation or deflagration between articles, providing the net explosive weight
of individual articles does not exceed 0.5 kilograms.
2B.15.4
2B.15.4.1
SBC 801
Special provisions for Group H-1 occupancies. Group H-1 occupancies shall be
in buildings used for no other purpose, shall not exceed one story in height and be
without basement, crawl spaces or other under-floor spaces. Roofs shall be of
lightweight construction with suitable thermal insulation to prevent sensitive
material from reaching its decomposition temperature.
Group H-1 occupancies containing materials which are in themselves both
physical and health hazards in quantities exceeding the maximum allowable
quantities per control area in Table 2A.7.7(2) shall comply with requirements for
both Group H-1 and H-4 occupancies.
Floors in storage rooms. Floors in storage areas for organic peroxides,
pyrophoric materials and unstable (reactive) materials shall be of liquid-tight,
noncombustible construction.
2007
2/65
USE AND OCCUPANCY CLASSIFICATION
2B.15.5
2B.15.5.1
2B.15.5.2
2B.15.6
Special provisions for Group H-2 and H-3 occupancies. Group H-2 and H-3
occupancies containing quantities of hazardous materials in excess of those set
forth in Table 2B.15.3.2 shall be in buildings used for no other purpose, shall not
exceed one story in height and shall be without basements, crawl spaces or other
under-floor spaces.
Group H-2 and H-3 occupancies containing water-reactive materials shall be
resistant to water penetration. Piping for conveying liquids shall not be over or
through areas containing water reactives, unless isolated by approved liquid-tight
construction.
Exception: Fire protection piping.
Floors in storage rooms. Floors in storage areas for organic peroxides, oxidizers,
pyrophoric materials, unstable (reactive) materials and water-reactive solids and
liquids shall be of liquid-tight, noncombustible construction.
Waterproof room. Rooms or areas used for the storage of water-reactive solids
and liquids shall be constructed in a manner that resists the penetration of water
through the use of waterproof materials. Piping carrying water for other than
approved automatic fire sprinkler systems shall not be within such rooms or areas.
Smoke and heat venting. Smoke and heat vents complying with Section 7.10
shall be installed in the following locations:
1. In occupancies classified as Group H-2 or H-3, any of which are over 1,394 m2
in single floor area.
Exception: Buildings of noncombustible construction containing only
noncombustible materials.
2. In areas of buildings in Group H used for storing Class 2, 3 and 4 liquid and
solid oxidizers, Class 1 and unclassified detonable organic peroxides, Class 3
and 4 unstable (reactive) materials, or Class 2 or 3 water-reactive materials as
required for a Class V hazard classification.
Exception: Buildings of noncombustible construction containing only
noncombustible materials.
Group H-2. Occupancies in Group H-2 shall be constructed in accordance with
Sections 2B.15.7.1 through 2B.15.7.4 and this code.
2B.15.7.1 Combustible dusts, grain processing and storage. The provisions of Sections
2B.15.7.1.1 through 2B.15.7.1.5 shall apply to buildings in which materials that
produce combustible dusts are stored or handled. Buildings that store or handle
combustible dusts shall comply with the applicable provisions of NFPA 61, NFPA
120, NFPA 651, NFPA 654, NFPA 655, NFPA 664 and NFPA 85, and this code.
2B.15.7.1.1 Type of construction and height exceptions. Buildings shall be constructed in
compliance with the height and area limitations of Chapter 3 for Group H-2;
except that where erected of Type I or II construction, the heights and areas of
grain elevators and similar structures shall be unlimited, and where of Type IV
construction, the maximum height shall be 20 m and except further that, in isolated
areas, the maximum height of Type IV structures shall be increased to 26 m.
2B.15.7.1.2 Grinding rooms. Every room or space occupied for grinding or other operations
that produce combustible dusts shall be enclosed with fire barriers and horizontal
assemblies or both that have not less than a 2 hours fire-resistance rating where the
area is not more than 279 m2, and not less than a 4-hour fire-resistance rating
where the area is greater than 279 m2.
2B.15.7.1.3 Conveyors. Conveyors, chutes, piping and similar equipment passing through the
enclosures of rooms or spaces shall be constructed dirt tight and vapor tight, and
be of approved noncombustible materials complying with SBC 501.
2B.15.7
SBC 801
2007
2/66
USE AND OCCUPANCY CLASSIFICATION
2B.15.7.1.4 Explosion control. Explosion control shall be provided as specified in these code
requirements, or spaces shall be equipped with the equivalent mechanical
ventilation complying with the SBC 501.
2B.15.7.1.5 Grain elevators. Grain elevators, non-alcoholic malt houses and buildings for
similar occupancies shall not be located within 9.1 m of interior lot lines or
structures on the same lot, except where erected along a railroad right-of-way.
2B.15.7.1.6 Coal pockets. Coal pockets located less than 9.1 m from interior lot lines or from
structures on the same lot shall be constructed of not less than Type IB
construction. Where more than 9.1 m from interior lot lines, or where erected
along a railroad right-of-way, the minimum type of construction of such structures
not more than 20 m in height shall be Type IV.
2B.15.7.2
2B.15.7.2.1
2B.15.7.2.1.1
2B.15.7.2.2
2B.15.7.2.3
2B.15.7.2.4
2B.15.7.2.5
2B.15.7.2.6
2B.15.7.2.7
2B.15.7.2.8
2B.15.7.2.9
SBC 801
Flammable and combustible liquids. The storage, handling, processing and
transporting of flammable and combustible liquids shall be in accordance with the
SBC 501 and these code requirements.
Mixed occupancies. Where the storage tank area is located in a building of two or
more occupancies, and the quantity of liquid exceeds the maximum allowable
quantity for one control area, the use shall be completely separated from adjacent
fire areas in accordance with the requirements of Section 2A.2.3.2.
Height exception. Where storage tanks are located within only a single-story
building, the height limitation of Section 3.3 shall not apply for Group H.
Tank protection. Storage tanks shall be noncombustible and protected from
physical damage. A fire barrier wall or horizontal assemblies or both around the
storage tank(s) shall be permitted as the method of protection from physical
damage.
Tanks. Storage tanks shall be approved tanks conforming to the requirements of
these code requirements.
Suppression. Group H shall be equipped throughout with an approved automatic
sprinkler system, installed in accordance with Section 7.3.
Leakage containment. A liquid-tight containment area compatible with the stored
liquid shall be provided. The method of spill control, drainage control and
secondary containment shall be in accordance with this code.
Exception: Rooms where only double-wall storage tanks conforming to Section
2B.15.7.2.3 are used to store Class I, II and IIIA flammable and combustible
liquids shall not be required to have a leakage containment area.
Leakage alarm. An approved automatic alarm shall be provided to indicate a leak
in a storage tank and room. The alarm shall sound an audible signal, 15 dBA
above the ambient sound level, at every point of entry into the room in which the
leaking storage tank is located. An approved sign shall be posted on every entry
door to the tank storage room indicating the potential hazard of the interior room
environment, or the sign shall state: WARNING, WHEN ALARM SOUNDS,
THE ENVIRONMENT WITHIN THE ROOM MAY BE HAZARDOUS. The
leakage alarm shall also be supervised in accordance with Chapter 9 to transmit a
trouble signal.
Tank vent. Storage tank vents for Class I, II or IIIA liquids shall terminate to the
outdoor air in accordance with these code requirements.
Room ventilation. Storage tank areas storing Class I, II or IIIA liquids shall be
provided with mechanical ventilation. The mechanical ventilation system shall be
in accordance with the SBC 501 and these code requirements.
Explosion venting. Where Class I liquids are being stored, explosion venting shall
be provided in accordance with this code.
2007
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USE AND OCCUPANCY CLASSIFICATION
2B.15.7.2.10
2B.15.7.3
2B.15.7.3.1
2B.15.7.3.2
2B.15.7.3.3
2B.15.7.3.3.1
2B.15.7.3.3.2
2B.15.7.3.3.3
2B.15.7.3.4
2B.15.7.3.4.1
2B.15.7.3.5
SBC 801
Tank openings other than vents. Tank openings other than vents from tanks
inside buildings shall be designed to ensure that liquids or vapor concentrations are
not released inside the building.
Liquefied petroleum gas-distribution facilities. The design and construction of
propane, butane, propylene, butylene and other liquefied petroleum gasdistribution facilities shall conform to the applicable provisions of Sections
2B.15.7.3.1 through 2B.15.7.3.5.2. The storage and handling of liquefied
petroleum gas systems shall conform to these code requirements. The design and
installation of piping, equipment and systems that utilize liquefied petroleum gas
shall be in accordance with and approved method. Liquefied petroleum gasdistribution facilities shall be ventilated in accordance with the SBC 501 and
Section 2B.15.7.3.1.
Air movement. Liquefied petroleum gas-distribution facilities shall be provided
with air inlets and outlets arranged so that air movement across the floor of the
facility will be uniform. The total area of both inlet and outlet openings shall be at
least 645 mm2 for each 0.093 m2 of floor area. The bottom of such openings shall
not be more than 152 mm above the floor.
Construction. Liquefied petroleum gas-distribution facilities shall be constructed
in accordance with Section 2B.15.7.3.3 for separate buildings, Section 2B.15.7.3.4
for attached buildings or Section 2B.15.7.3.5 for rooms within buildings.
Separate buildings. Where located in separate buildings, liquefied petroleum gasdistribution facilities shall be occupied exclusively for that purpose or for other
purposes having similar hazards. Such buildings shall be limited to one story in
height and shall conform to Sections 2B.15.7.3.3.1 through 2B.15.7.3.3.3.
Floors. The floor shall not be located below ground level and any spaces beneath
the floor shall be solidly filled or shall be unenclosed.
Materials. Walls, floors, ceilings, columns and roofs shall be constructed of
noncombustible materials.
Explosion venting. Explosion venting shall be provided in accordance with these
code requirements.
Attached buildings. Where liquefied petroleum gas-distribution facilities are
located in an attached structure, the attached perimeter shall not exceed 50 percent
of the perimeter of the space enclosed and the facility shall comply with Sections
2B.15.7.3.3 and 2B.15.7.3.4.1. Where the attached perimeter exceeds 50 percent,
such facilities shall comply with Section 2B.15.7.3.5.
Fire separation assemblies. Separation of the attached structures shall be
provided by fire barrier walls and horizontal assemblies, or both, having a fireresistance rating of not less than 1 hour and shall not have openings. Fire barrier
walls and horizontal assemblies, or both, between attached structures occupied
only for the storage of LP-gas are permitted to have fire doors that comply with
Section 4B.14. Such fire barrier walls and horizontal assemblies, or both, shall be
designed to withstand a static pressure of at least 4,788 Pa, except where the
building to which the structure is attached is occupied by operations or processes
having a similar hazard.
Rooms within buildings. Where liquefied petroleum gas-distribution facilities are
located in rooms within buildings, such rooms shall be located in the first story
above grade plane and shall have at least one exterior wall with sufficient exposed
area to provide explosion venting as required in these code requirements. The
building in which the room is located shall not have a basement or unventilated
crawl space and the room shall comply with Sections 2B.15.7.3.5.1 and
2B.15.7.3.5.2.
2007
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USE AND OCCUPANCY CLASSIFICATION
2B.15.7.3.5.1
2B.15.7.3.5.2
2B.15.7.4
2B.15.8
2B.15.8.1
2B.15.8.2
2B.15.8.3
Materials. Walls, floors, ceilings and roofs of such rooms shall be constructed by
an approved noncombustible materials.
Common construction. Walls and floor/ceiling assemblies common to the room
and to the building within which the room is located shall have a fire barrier wall
and horizontal assembly or both of not less than 1 hour and without openings.
Common walls for rooms occupied only for storage of LP-gas are permitted to
have opening protectives complying with Section 4B.14. Such walls and ceiling
shall be designed to withstand a static pressure of at least 4,788 Pa.
Exception: Where the building, within which the room is located, is occupied by
operations or processes having a similar hazard.
Dry cleaning plants. The construction and installation of dry cleaning plants shall
be in accordance with the requirements of these code requirements, the SBC 501,
the SBC 701 and NFPA 32. Dry cleaning solvents and systems shall be classified
in accordance with this code.
Groups H-3 and H-4. Groups H-3 and H-4 shall be constructed in accordance
with the applicable provisions of these code requirements.
Gas rooms. When gas rooms are provided, such rooms shall be separated from
other areas by not less than a 1hour fire barrier.
Floors in storage rooms. Floors in storage areas for corrosive liquids and highly
toxic or toxic materials shall be of liquid-tight, noncombustible construction.
Separation—highly toxic solids and liquids. Highly toxic solids and liquids not
stored in approved hazardous materials storage cabinets shall be isolated from
other hazardous materials storage by construction having a 1 hour fire-resistance
rating.
Group H-5.
General. In addition to the requirements set forth elsewhere in these code
requirements, Group H-5 shall comply with the provisions of Section 2B.15.9 and
other code requirements.
2B.15.9.2 Fabrication areas.
2B.15.9.2.1 Hazardous materials in fabrication areas.
2B.15.9.2.1.1 Aggregate quantities. The aggregate quantities of hazardous materials stored and
used in a single fabrication area shall not exceed the quantities set forth in Table
2B.15.9.2.1.1.
Exception: The quantity limitations for any hazard category in Table
2B.15.9.2.1.1 shall not apply where the fabrication area contains quantities of
hazardous materials not exceeding the maximum allowable quantities per control
area established by Tables 2A.7.7(1) and 2A.7.7(2).
2B.15.9.2.1.2 Hazardous production materials. The maximum quantities of hazardous
production materials stored in a single fabrication area shall not exceed the
maximum allowable quantities per control area established by Tables 2A.7.7(1)
and 2A.7.7(2).
2B.15.9.2.2 Separation. Fabrication areas, whose sizes are limited by the quantity of
hazardous materials allowed by Table 2B.15.9.2.1.1, shall be separated from each
other, from exit access corridors, and from other parts of the building by not less
than 1 hour fire barriers.
Exceptions:
1. Doors within such fire barrier walls, including doors to corridors, shall be only
self-closing fire assemblies having a fire-protection rating of not less than 3/4
hour.
2. Windows between fabrication areas and exit access corridors are permitted to
2B.15.9
2B.15.9.1
SBC 801
2007
2/69
USE AND OCCUPANCY CLASSIFICATION
be fixed glazing listed and labeled for a fire protection rating of at least 3/4 hour
in accordance with Section 4B.14.
TABLE 2B.15.9.2.1.1
QUANTITY LIMITS FOR HAZARDOUS MATERIALS IN A SINGLE FABRICATION AREA
IN GROUP H-5a
SOLIDS
(kg / m2)
HAZARD CATEGORY
PHYSICAL-HAZARD MATERIALS
Combustible dust
Combustible fiber
Combustible liquid
Combination Class I, II and IIIA
Cryogenic gas
Explosives
Flammable gas
Flammable liquid
Combination Class IA, IB and IC
Combination Class I, II and IIIA
Flammable solid
Organic peroxide
Oxidizing gas
Combination of gaseous and liquefied
Oxidizer
Combination
Pyrophoric material
Unstable reactive
Water reactive
HEALTH-HAZARD MATERIALS
Corrosives
Highly toxic
Toxics
Note b
Loose
Baled
II
IIIA
IIIB
Note b
Note b
Not Applicable
Flammable
Oxidizing
Not Applicable
Note b
Gaseous
Liquefied
A
IB
IC
Not Applicable
Not Applicable
0.005
Unclassified detonable
Class I
Class II
Class III
Class IV
Class V
Gaseous
Liquefied
Class 4
Class 3
Class 2
Class 1
Class 1, 2, 3
Class 4
Class 3
Class 2
Class 1
Class 3
Class 2
Class 1
Note b
Note b
0.122
0.488
Not Limited
Not limited
LIQUIDS
(liters / m2)
Not
Applicable
Not
Applicable
0.00025
0.0005
Not Limited
0.001
Not
Applicable
Note b
Not
Applicable
0.00006
0.00063
0.00063
0.00063
0.001
Not
Applicable
GAS
(m3 @ NTP/m2)
Not Applicable
Not Applicable
Not Applicable
Note c
0.38
Note b
Note b
Note c
Not Applicable
Not Applicable
Not
Applicable
Not Applicable
Not Applicable
Not
Applicable
Note b
0.015
0.015
0.015
0.015
Note b
Note b
0.122
0.488
Not Limited
Note b
1.22
Not Limited
Note b
0.00008
0.00008
0.00008
0.00008
0.00003
Note b
0.00006
0.00025
Not Limited
0.00003
0.00063
Not Limited
0.38
0.38
0.38
Not Limited
Not Limited
Not Limited
Not Limited
Not Limited
Not Limited
Not Applicable
Notes c and d
Note b
Note b
Note b
Not Limited
Not Applicable
Not Limited
Note c
Note c
a. Hazardous materials within piping shall not be included in the calculated quantities.
b. Quantity of hazardous materials in a single fabrication shall not exceed the maximum allowable quantities per control area in Tables
2A.7.7(1) and 2A.7.7(2).
c. The aggregate quantity of flammable, pyrophoric, toxic and highly toxic gases shall not exceed 255 cubic meters at NTP.
d. The aggregate quantity of pyrophoric gases in the building shall not exceed the amounts set forth in Table 2B.15.3.2.
2B.15.9.2.3 Location of occupied levels. Occupied levels of fabrication areas shall be located
at or above the first story above grade plane.
2B.15.9.2.4 Floors. Except for surfacing, floors within fabrication areas shall be of
noncombustible construction.
SBC 801
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USE AND OCCUPANCY CLASSIFICATION
Openings through floors of fabrication areas are permitted to be unprotected where
the interconnected levels are used solely for mechanical equipment directly related
to such fabrication areas (see also Section 2B.15.9.2.5).
Floors forming a part of an occupancy separation shall be liquid tight.
2B.15.9.2.5 Shafts and openings through floors. Elevator shafts, vent shafts and other
openings through floors shall be enclosed when required by Section 4B.7.
Mechanical, duct and piping penetrations within a fabrication area shall not extend
through more than two floors. The annular space around penetrations for cables,
cable trays, tubing, piping, conduit or ducts shall be sealed at the floor level to
restrict the movement of air. The fabrication area, including the areas through
which the ductwork and piping extend, shall be considered a single conditioned
environment.
2B.15.9.2.6 Ventilation. Mechanical exhaust ventilation shall be provided throughout the
fabrication area at the rate of not less than 0.044 L/S/m2 of floor area. The exhaust
air duct system of one fabrication area shall not connect to another duct system
outside that fabrication area within the building.
A ventilation system shall be provided to capture and exhaust fumes and vapors at
workstations.
Two or more operations at a workstation shall not be connected to the same
exhaust system where either one or the combination of the substances removed
could constitute a fire, explosion or hazardous chemical reaction within the
exhaust duct system.
Exhaust ducts penetrating occupancy separations shall be contained in a shaft of
equivalent fire-resistance construction. Exhaust ducts shall not penetrate fire walls.
Fire dampers shall not be installed in exhaust ducts.
2B.15.9.2.7 Transporting hazardous production materials to fabrication areas. Hazardous
production materials shall be transported to fabrication areas through enclosed
piping or tubing systems that comply with Section 2B.15.9.6.1, through service
corridors complying with Section 2B.15.9.4, or in exit access corridors as
permitted in the exception to Section 2B.15.9.3. The handling or transporting of
hazardous production materials within service corridors shall comply with these
code requirements.
2B.15.9.2.8 Electrical.
2B.15.9.2.8.1 General. Electrical equipment and devices within the fabrication area shall
comply with the SBC 401. The requirements for hazardous locations need not be
applied where the average air change is at least four times that set forth in Section
2B.15.9.2.6 and where the number of air changes at any location is not less than
three times that required by Section 2B.15.9.2.6. The use of re-circulated air shall
be permitted.
2B.15.9.2.8.2 Workstations. Workstations shall not be energized without adequate exhaust
ventilation. See Section 2B.15.9.2.6 for workstation exhaust ventilation
requirements.
2B.15.9.3
SBC 801
Exit access corridors. Exit access corridors shall comply with Chapter 8 and shall
be separated from fabrication areas as specified in Section 2B.15.9.2.2. Exit access
corridors shall not contain HPM and shall not be used for transporting such
materials, except through closed piping systems as provided in Section
2B.15.9.6.3.
Exception: Where existing fabrication areas are altered or modified, HPM is
allowed to be transported in existing exit access corridors, subject to the following
conditions:
1. Corridors. Exit access corridors adjacent to the fabrication area where the
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USE AND OCCUPANCY CLASSIFICATION
alteration work is to be done shall comply with Section 8.16 for a length
determined as follows:
1.1 The length of the common wall of the corridor and the fabrication area;
and
1.2 For the distance along the exit access corridor to the point of entry of
HPM into the exit access corridor serving that fabrication area.
2. Emergency alarm system. There shall be an emergency telephone system, a
local manual alarm station or other approved alarm-initiating device within
exit access corridors at not more than 46 m intervals and at each exit and exit
access doorway. The signal shall be relayed to an approved central, proprietary
or remote station service or the emergency control station and shall also initiate
a local audible alarm.
3. Pass-throughs. Self-closing doors having a fire-protection rating of not less
than 1 hour shall separate pass-throughs from existing exit access corridors.
Pass-throughs shall be constructed as required for the exit access corridors, and
protected by an approved automatic fire-extinguishing system.
2B.15.9.4 Service corridors.
2B.15.9.4.1 Occupancy. Service corridors shall be classified as Group H-5.
2B.15.9.4.2 Use conditions. Service corridors shall be separated from exit access corridors as
2B.15.9.4.3
2B.15.9.4.4
2B.15.9.4.5
2B.15.9.4.6
2B.15.9.4.6.1
2B.15.9.4.6.2
2B.15.9.4.6.3
2B.15.9.4.6.4
2B.15.9.4.6.5
SBC 801
required by Section 2B.15.9.2.2. Service corridors shall not be used as a required
exit access corridor.
Mechanical ventilation. Service corridors shall be mechanically ventilated as
required by Section 2B.15.9.2.6 or at not less than six air changes per hour,
whichever is greater.
Means of egress. The maximum distance of travel from any point in a service
corridor to an exit, exit access corridor or door into a fabrication area shall not
exceed 23 m. Dead ends shall not exceed 1.22 m in length. There shall be not less
than two exits, and not more than one-half of the required means of egress shall
require travel into a fabrication area. Doors from service corridors shall swing in
the direction of egress travel and shall be self-closing.
Minimum width. The minimum clear width of a service corridor shall be 1.5 m,
or 838 mm wider than the widest cart or truck used in the corridor, whichever is
greater.
Emergency alarm system. Emergency alarm systems shall be provided in
accordance with this section and Sections 2B.14.7.1 and 2B.14.7.2. The maximum
allowable quantity per control area provisions shall not apply to emergency alarm
systems required for HPM.
Service corridors. An emergency alarm system shall be provided in service
corridors, with at least one alarm device in each service corridor.
Exit access corridors and exit enclosures. Emergency alarms for exit access
corridors and exit enclosures shall comply with Section 2B.14.7.2.
Liquid storage rooms, HPM rooms and gas rooms. Emergency alarms for
liquid storage rooms, HPM rooms and gas rooms shall comply with Section
2B.14.7.1.
Alarm-initiating devices. An approved emergency telephone system, local alarm
manual pull stations, or other approved alarm-initiating devices are allowed to be
used as emergency alarm-initiating devices.
Alarm signals. Activation of the emergency alarm system shall sound a local
alarm and transmit a signal to the emergency control station.
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USE AND OCCUPANCY CLASSIFICATION
2B.15.9.5 Storage of hazardous production materials.
2B.15.9.5.1 General. Storage of HPM in fabrication areas shall be within approved or listed
2B.15.9.5.2
2B.15.9.5.2.1
2B.15.9.5.2.2
2B.15.9.5.2.3
2B.15.9.5.3
2B.15.9.5.4
2B.15.9.5.5
2B.15.9.5.6
2B.15.9.5.7
2B.15.9.5.8
SBC 801
storage cabinets or gas cabinets, or within a workstation. The storage of hazardous
production materials in quantities greater than those listed in Tables 2A.7.7(1) or
2A.7.7(2) shall be in liquid storage rooms, HPM rooms or gas rooms as
appropriate for the materials stored. The storage of other hazardous materials shall
be in accordance with other applicable provisions of these code requirements and
these code requirements.
Construction.
HPM rooms and gas rooms. HPM rooms and gas rooms shall be separated from
other areas by not less than a 2 hours fire barrier where the area is 27.9 m2 or more
and not less than a 1 hour fire barrier where the area is less than 27.9 m2.
Liquid storage rooms. Liquid storage rooms shall be constructed in accordance
with the following requirements:
1. Rooms in excess of 46.5 m2 shall have at least one exterior door approved for
Civil Defence access.
2. Rooms shall be separated from other areas by fire barriers having a fireresistance rating of not less than 1 hour for rooms up to 13.9 m2 in area and
not less than 2 hours where the room is more than 13.9 m2 in area.
3. Shelving, racks and wainscoting in such areas shall be of noncombustible
construction or wood of not less than 25 mm nominal thickness.
4. Rooms used for the storage of Class I flammable liquids shall not be located
in a basement.
Floors. Except for surfacing, floors of HPM rooms and liquid storage rooms shall
be of noncombustible liquid-tight construction. Raised grating over floors shall be
of noncombustible materials.
Location. Where HPM rooms, liquid storage rooms and gas rooms are provided,
they shall have at least one exterior wall and such wall shall be not less than 9.1 m
from property lines, including property lines adjacent to public ways.
Explosion control. Explosion control shall be provided where required by Section
2B.14.5.1.
Exits. Where two exits are required from HPM rooms, liquid storage rooms and
gas rooms, one shall be directly to the outside of the building.
Doors. Doors in a fire barrier wall, including doors to corridors, shall be selfclosing fire assemblies having a fire-protection rating of not less than 3/4 hour.
Ventilation. Mechanical exhaust ventilation shall be provided in liquid storage
rooms, HPM rooms and gas rooms at the rate of not less than 0.044 L/S/m2 of
floor area or six air changes per hour, whichever is greater, for categories of
material. Exhaust ventilation for gas rooms shall be designed to operate at a
negative pressure in relation to the surrounding areas and direct the exhaust
ventilation to an exhaust system.
Emergency alarm system. An approved emergency alarm system shall be
provided for HPM rooms, liquid storage rooms and gas rooms.
1. Emergency alarm-initiating devices shall be installed outside of each interior
exit door of such rooms. Activation of an emergency alarm-initiating device
shall sound a local alarm and transmit a signal to the emergency control
station.
2. An approved emergency telephone system, local alarm manual pull stations or
other approved alarm-initiating devices are allowed to be used as emergency
alarm-initiating devices.
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USE AND OCCUPANCY CLASSIFICATION
2B.15.9.6 Piping and tubing.
2B.15.9.6.1 General. Hazardous production materials piping and tubing shall comply with this
section and ANSI B31.3.
2B.15.9.6.2 Supply piping and tubing.
HPM having a health-hazard ranking of 3 or 4. Systems supplying HPM
liquids or gases having a health-hazard ranking of 3 or 4 shall be welded
throughout, except for connections, to the systems that are within a ventilated
enclosure if the material is a gas, or an approved method of drainage or
containment is provided for the connections if the material is a liquid.
2B.15.9.6.2.2 Location in service corridors. Hazardous production materials supply piping or
tubing in service corridors shall be exposed to view.
2B.15.9.6.2.3 Excess flow control. Where HPM gases or liquids are carried in pressurized
piping above 103.4 kPa, excess flow control shall be provided. Where the piping
originates from within a liquid storage room, HPM room or gas room, the excess
flow control shall be located within the liquid storage room, HPM room or gas
room. Where the piping originates from a bulk source, the excess flow control
shall be located as close to the bulk source as practical.
2B.15.9.6.3 Installations in exit access corridors and above other occupancies. The
installation of hazardous production material piping and tubing within the space
defined by the walls of exit access corridors and the floor or roof above or in
concealed spaces above other occupancies shall be in accordance with Section
2B.15.9.6.2 and the following conditions:
1. Automatic sprinklers shall be installed within the space unless the space is less
than 152 mm in the least dimension.
2. Ventilation not less than six air changes per hour shall be provided. The space
shall not be used to convey air from any other area.
3. Where the piping or tubing is used to transport HPM liquids, a receptor shall
be installed below such piping or tubing. The receptor shall be designed to
collect any discharge or leakage and drain it to an approved location. The
1hourenclosure shall not be used as part of the receptor.
4. HPM supply piping and tubing and HPM nonmetallic waste lines shall be
separated from the exit access corridor and from occupancies other than
Group H-5 by construction as required for walls or partitions that have a fire
protection rating of not less than 1 hour. Where gypsum wallboard is used,
joints on the piping side of the enclosure are not required to be taped,
provided the joints occur over framing members. Access openings into the
enclosure shall be protected by approved fire-resistance-rated assemblies.
5. Readily accessible manual or automatic remotely activated fail-safe
emergency shutoff valves shall be installed on piping and tubing other than
waste lines at the following locations:
5.1 At branch connections into the fabrication area.
5.2 At entries into exit access corridors.
Exception: Transverse crossings of the corridors by supply piping that is
enclosed within a ferrous pipe or tube for the width of corridor need not comply
with Items 1 through 5.
2B.15.9.6.4 Identification. Piping, tubing and HPM waste lines shall be identified in
accordance with ANSI A13.1 to indicate the material being transported.
2B.15.9.7 Continuous gas-detection systems. A continuous gas-detection system shall be
provided for HPM gases when the physiological warning properties of the gas are
at a higher level than the accepted permissible exposure limit (PEL) for the gas
and for flammable gases in accordance with this section.
2B.15.9.6.2.1
SBC 801
2007
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USE AND OCCUPANCY CLASSIFICATION
2B.15.9.7.1 Where required. A continuous gas-detection system shall be provided in the areas
identified in Sections 2B.15.9.7.1.1 through 2B.15.9.7.1.4.
2B.15.9.7.1.1 Fabrication areas. A continuous gas-detection system shall be provided in
fabrication areas when gas is used in the fabrication area.
2B.15.9.7.1.2 HPM rooms. A continuous gas-detection system shall be provided in HPM rooms
when gas is used in the room.
2B.15.9.7.1.3 Gas cabinets, exhausted enclosures and gas rooms. A continuous gas-detection
system shall be provided in gas cabinets and exhausted enclosures. A continuous
gas-detection system shall be provided in gas rooms when gases are not located in
gas cabinets or exhausted enclosures.
2B.15.9.7.1.4 Exit access corridors. When gases are transported in piping placed within the
space defined by the walls of an exit access corridor, and the floor or roof above
the exit access corridor, a continuous gas-detection system shall be provided where
piping is located and in the exit access corridor.
Exception: A continuous gas-detection system is not required for occasional
transverse crossings of the corridors by supply piping that is enclosed in a ferrous
pipe or tube for the width of the corridor.
2B.15.9.7.2 Gas-detection system operation. The continuous gas-detection system shall be
capable of monitoring the room, area or equipment in which the gas is located at or
below the PEL or ceiling limit of the gas for which detection is provided. For
flammable gases, the monitoring detection threshold level shall be vapor
concentrations in excess of 20 percent of the lower explosive limit (LFL).
Monitoring for highly toxic and toxic gases shall also comply with the
requirements for such material in these code requirements.
2B.15.9.7.2.1 Alarms. The gas detection system shall initiate a local alarm and transmit a signal
to the emergency control station when a short-term hazard condition is detected.
The alarm shall be both visual and audible and shall provide warning both inside
and outside the area where the gas is detected. The audible alarm shall be distinct
from all other alarms.
2B.15.9.7.2.2 Shutoff of gas supply. The gas detection system shall automatically close the
shutoff valve at the source on gas supply piping and tubing related to the system
being monitored for which gas is detected when a short-term hazard condition is
detected. Automatic closure of shutoff valves shall comply with the following:
1. Where the gas-detection sampling point initiating the gas detection system
alarm is within a gas cabinet or exhausted enclosure, the shutoff valve in the
gas cabinet or exhausted enclosure for the specific gas detected shall
automatically close.
2. Where the gas-detection sampling point initiating the gas detection system
alarm is within a room and compressed gas containers are not in gas cabinets
or an exhausted enclosure, the shutoff valves on all gas lines for the specific
gas detected shall automatically close.
3. Where the gas-detection sampling point initiating the gas detection system
alarm is within a piping distribution manifold enclosure, the shutoff valve
supplying the manifold for the compressed gas container of the specific gas
detected shall automatically close.
Exception: Where the gas-detection sampling point initiating the gas detection
system alarm is at the use location or within a gas valve enclosure of a branch line
downstream of a piping distribution manifold, the shutoff valve for the branch line
located in the piping distribution manifold enclosure shall automatically close.
2B.15.9.8 Manual fire alarm system. An approved manual fire alarm system shall be
provided throughout buildings containing Group H-5. Activation of the alarm
system shall initiate a local alarm and transmit a signal to the emergency control
SBC 801
2007
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USE AND OCCUPANCY CLASSIFICATION
station. The fire alarm system shall be designed and installed in accordance with
Section 7.7.
2B.15.9.9 Emergency control station. An emergency control station shall be provided on
the premises at an approved location, outside of the fabrication area and shall be
continuously staffed by trained personnel. The emergency control station shall
receive signals from emergency equipment and alarm and detection systems. Such
emergency equipment and alarm and detection systems shall include, but not
necessarily be limited to, the following where such equipment or systems are
required to be provided either in Section 2B.15.9 or elsewhere in these code
requirements:
1. Automatic fire sprinkler system alarm and monitoring systems.
2. Manual fire alarm systems.
3. Emergency alarm systems.
4. Continuous gas-detection systems.
5. Smoke detection systems.
6. Emergency power system.
2B.15.9.10 Emergency power system. An emergency power system shall be provided in
Group H-5 occupancies where required in Section 2B.15.9.10.1. The emergency
power system shall be designed to supply power automatically to required
electrical systems when the normal electrical supply system is interrupted.
2B.15.9.10.1 Where required. Emergency power shall be provided for electrically operated
equipment and connected control circuits for the following systems:
1. HPM exhaust ventilation systems.
2. HPM gas cabinet ventilation systems.
3. HPM exhausted enclosure ventilation systems.
4. HPM gas room ventilation systems.
5. HPM gas detection systems.
6. Emergency alarm systems.
7. Manual fire alarm systems.
8. Automatic sprinkler system monitoring and alarm systems.
9. Electrically operated systems required elsewhere in these code requirements
applicable to the use, storage or handling of HPM.
2B.15.9.10.2 Exhaust ventilation systems. Exhaust ventilation systems are allowed to be
designed to operate at not less than one-half the normal fan speed on the
emergency power system where it is demonstrated that the level of exhaust will
maintain a safe atmosphere.
2B.15.9.11 Fire sprinkler system protection in exhaust ducts for HPM.
2B.15.9.11.1
2B.15.9.11.2
2B.15.9.11.3
SBC 801
General. Automatic fire sprinkler system protection shall be provided in exhaust
ducts conveying vapors, fumes, mists or dusts generated from HPM in accordance
with this section and the SBC 501.
Metallic and noncombustible, nonmetallic exhaust ducts. Automatic fire
sprinkler system protection shall be provided in metallic and noncombustible,
nonmetallic exhaust ducts where all of the following conditions apply:
1. Where the largest cross-sectional diameter is equal to or greater than 254 mm.
2. The ducts are within the building.
3. The ducts are conveying flammable vapors or fumes.
Combustible nonmetallic exhaust ducts. Automatic fire sprinkler system
protection shall be provided in combustible nonmetallic exhaust ducts where the
largest cross-sectional diameter of the duct is equal to or greater than 254 mm.
Exceptions:
1. Ducts listed or approved for applications without automatic fire sprinkler
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USE AND OCCUPANCY CLASSIFICATION
2B.15.9.11.4
system protection.
2. Ducts not more than 3.7 m in length installed below ceiling level.
Automatic sprinkler locations. Sprinkler systems shall be installed at 3.7 m
intervals in horizontal ducts and at changes in direction. In vertical ducts,
sprinklers shall be installed at the top and at alternate floor levels.
SECTION 2B.16
APPLICATION OF FLAMMABLE FINISHES
2B.16.1
General. The provisions of this section shall apply to the construction, installation
and use of buildings and structures, or parts thereof, for the spraying of flammable
paints, varnishes and lacquers or other flammable materials or mixtures or
compounds used for painting, varnishing, staining or similar purposes. Such
construction and equipment shall comply with these code requirements.
2B.16.2
Spray rooms. Spray rooms shall be enclosed with fire barrier walls and horizontal
assemblies or both with not less than a 1hour fire-resistance rating. Floors shall be
waterproofed and drained in an approved manner.
Surfaces. The interior surfaces of spray rooms shall be smooth and shall be so
constructed to permit the free passage of exhaust air from all parts of the interior
and to facilitate washing and cleaning, and shall be so designed to confine residues
within the room. Aluminum shall not be used.
2B.16.2.1
2B.16.3
2B.16.3.1
2B.16.4
Spraying spaces. Spraying spaces shall be ventilated with an exhaust system to
prevent the accumulation of flammable mist or vapors in accordance with the SBC
501. Where such spaces are not separately enclosed, noncombustible spray
curtains shall be provided to restrict the spread of flammable vapors.
Surfaces. The interior surfaces of spraying spaces shall be smooth and continuous
without edges, and shall be so constructed to permit the free passage of exhaust air
from all parts of the interior and to facilitate washing and cleaning, and shall be so
designed to confine residues within the spraying space. Aluminum shall not be
used.
Fire protection. An automatic fire-extinguishing system shall be provided in all
spray, dip and immersing spaces and storage rooms, and shall be installed in
accordance with Chapter 7.
SECTION 2B.17
DRYING ROOMS
2B.17.1
General. A drying room or dry kiln installed within a building shall be constructed
entirely of approved noncombustible materials or assemblies of such materials
regulated by the approved rules or as required in the general and specific sections
of Section 2B of Chapter 2 for special occupancies and where applicable to the
general requirements of SBC 501.
2B.17.2
Piping clearance. Overhead heating pipes shall have a clearance of not less than
51 mm from combustible contents in the dryer.
2B.17.3
Insulation. Where the operating temperature of the dryer is 79°C or more, metal
enclosures shall be insulated from adjacent combustible materials by not less than
305 mm of airspace, or the metal walls shall be lined with 6.35 mm insulating mill
SBC 801
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USE AND OCCUPANCY CLASSIFICATION
board or other approved equivalent insulation.
2B.17.4
Fire protection. Drying rooms designed for high-hazard materials and processes,
including special occupancies as provided for in Section 2B of Chapter 2, shall be
protected by an approved automatic fire-extinguishing system conforming to the
provisions of Chapter 7.
SECTION 2B.18
ORGANIC COATINGS
2B.18.1
Building features. Manufacturing of organic coatings shall be done only in
buildings that do not have pits or basements.
2B.18.2
Location. Organic coating manufacturing operations and operations incidental to
or connected therewith shall not be located in buildings having other occupancies.
2B.18.3
Process mills. Mills operating with close clearances and that process flammable
and heat-sensitive materials, such as nitrocellulose, shall be located in a detached
building or noncombustible structure.
2B.18.4
Tank storage. Storage areas for flammable and combustible liquid tanks inside of
structures shall be located at or above grade and shall be separated from the
processing area by not less than 2 hours fire-resistance-rated fire barriers.
2B.18.5
Nitrocellulose storage. Nitrocellulose storage shall be located on a detached pad
or in a separate structure or a room enclosed with no less than 2 hours fireresistance-rated fire barriers.
2B.18.6
Finished products. Storage rooms for finished products that are flammable or
combustible liquids shall be separated from the processing area by fire barriers
having a fire-resistance rating of at least 2 hours, and openings in the walls shall be
protected with approved opening protectives.
SBC 801
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GENERAL BUILDING HEIGHTS AND AREAS
CHAPTER 3
GENERAL BUILDING HEIGHTS AND AREAS
SECTION 3.1
GENERAL
3.1.1
Scope. The provisions of this chapter control the height and area of structures
hereafter erected and additions to existing structures.
3.1.2
Premises identification. Approved numbers or addresses shall be provided for
new buildings in such a position as to be clearly visible and legible from the street
or roadway fronting the property. Letters or numbers shall be a minimum 76 mm
in height and stroke of minimum 12.7 mm of a contrasting color to the background
itself.
SECTIONS 3.2
DEFINITIONS
3.2.1
Definitions. The following words and terms shall, for the purposes of this chapter
and as used elsewhere in this code, have the meanings shown herein.
AREA, BUILDING. The area included within surrounding exterior walls (or
exterior walls and fire walls) exclusive of vent shafts and courts. Areas of the
building not provided with surrounding walls shall be included in the building area
if such areas are included within the horizontal projection of the roof or floor
above.
BASEMENT. That portion of a building that is partly or completely below grade
plane (See “Story above grade plane” in Chapter 1). A basement shall be
considered as a story above grade plane where the finished surface of the floor
above the basement is:
1. More than 1.8 m above grade plane;
2. More than 1.8 m above the finished ground level for more than 50 percent
of the total building perimeter; or
3. More than 3.7 m above the finished ground level at any point.
GRADE PLANE. A reference plane representing the average of finished ground
level adjoining the building at exterior walls. Where the finished ground level
slopes away from the exterior walls, the reference plane shall be established by
the lowest points within the area between the building and the lot line or, where
the lot line is more than 1.8 m from the building, between the building and a point
1.8 m from the building.
HEIGHT, BUILDING. The vertical distance from grade plane to the average
height of the highest roof surface.
HEIGHT, STORY. The vertical distance from top to top of two successive
finished floor surfaces; and, for the topmost story, from the top of the floor finish
to the top of the ceiling joists or, where there is not a ceiling, to the top of the roof
rafters.
SBC 801
INDUSTRIAL EQUIPMENT PLATFORM. An unoccupied, elevated platform
in an industrial occupancy used exclusively for mechanical systems or industrial
process equipment, including the associated elevated walkways, stairs and ladders
2007
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GENERAL BUILDING HEIGHTS AND AREAS
necessary to access the platform (see Section 3.5.5).
MEZZANINE. An intermediate level or levels between the floor and ceiling of
any story with an aggregate floor area of not more than one-third of the area of the
room or space in which the level or levels are located (see Section 3.5).
STORY. That portion of a building included between the upper surface of a floor
and the upper surface of the floor or roof next above (also see “Basement” and
“Mezzanine”).
SECTION 3.3
GENERAL HEIGHT AND AREA LIMITATIONS
3.3.1
3.3.1.1
3.3.1.2
3.3.1.3
3.3.1.4
3.3.2
General. The height and area for buildings of different construction types shall be
governed by the intended use of the building and shall not exceed the limits in
Table 3.3 except as modified hereafter. Each part of a building included within the
exterior walls or the exterior walls and fire walls where provided shall be
permitted to be a separate building.
Basements. Basements need not be included in the total allowable area provided
they do not exceed the area permitted for a one-story building.
Special industrial occupancies. Buildings and structures designed to house lowhazard industrial processes that require large areas and unusual heights to
accommodate crane ways or special machinery and equipment including, among
others, rolling mills; structural metal fabrication shops and foundries; or the
production and distribution of electric, gas or steam power, shall be exempt from
the height and area limitations of Table 3.3.
Buildings on same lot. Two or more buildings on the same lot shall be regulated
as separate buildings or shall be considered as portions of one building if the
height of each building and the aggregate area of buildings are within the
limitations of Table 3.3 as modified by Sections 3.4 and 3.6. The provisions of this
code applicable to the aggregate building shall be applicable to each building.
Type I construction. Buildings of Type I construction permitted to be of
unlimited tabular heights and areas are not subject to the special requirements that
allow unlimited area buildings in Section 3.7 or unlimited height in Sections
3.3.1.2 and 3.4.3 or increased height and areas for other types of construction.
Party walls. Any wall located on a property line between adjacent buildings,
which is used or adapted for joint service between the two buildings, shall be
constructed as a fire wall in accordance with Section 4B.6, without openings and
shall create separate buildings.
SECTION 3.4
HEIGHT MODIFICATIONS
3.4.1
SBC 801
General. The heights permitted by Table 3.3 shall only be increased in accordance
with this section.
Exception: The height of one-story aircraft hangars, aircraft paint hangars and
buildings used for the manufacturing of aircraft shall not be limited if the building
is provided with an automatic fire-extinguishing system in accordance with
Chapter 7 and is entirely surrounded by public ways or yards not less in width than
one and one-half times the height of the building.
2007
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GENERAL BUILDING HEIGHTS AND AREAS
TABLE 3.3
ALLOWABLE HEIGHT AND BUILDING AREAS
Height limitations shown as stories and meters above grade plane.
Area limitations as determined by the definition of “Area, building,” per floor.
GROUP
A-1
A-2
A-3
A-4
A-5
B
E
F-1
F-2
H-1
H-2
H-3
H-4
H-5
I-1
I-2
I-3
I-4
M
R-1
R-2a
R-3a
R-4
S-1
S-2b-c
Uc
Hgt(S)
Hgt(m)
S
A
S
A
S
A
S
A
S
A
S
A
S
A
S
A
S
A
S
A
S
A
S
A
S
A
S
A
S
A
S
A
S
A
S
A
S
A
S
A
S
A
S
A
S
A
S
A
S
A
S
A
TYPE I
A
B
UL
UL
UL
UL
UL
UL
UL
UL
UL
UL
UL
UL
UL
UL
UL
UL
UL
UL
UL
1
6,401
UL
6,401
UL
UL
UL
UL
3
UL
UL
UL
UL
UL
UL
UL
UL
UL
UL
UL
UL
UL
UL
UL
UL
UL
UL
UL
UL
UL
UL
UL
UL
UL
160
5
UL
11
UL
11
UL
11
UL
UL
UL
11
UL
5
UL
11
UL
11
UL
1
5,029
3
5,029
6
18,288
7
UL
3
UL
9
16,764
4
UL
4
UL
5
18,440
11
UL
11
UL
11
UL
11
UL
11
UL
11
14,630
11
24,079
5
10,820
TYPE OF CONSTRUCTION
TYPE II
TYPE III
TYPE IV
A
B
A
B
HT
65
3
4,724
3
4,724
3
4,724
3
4,724
UL
UL
5
11,430
3
8,077
4
7,620
5
11,278
1
3,353
2
3,353
4
8,077
5
11,430
3
11,430
4
5,791
2
4,572
2
4,572
3
8,077
4
6,553
4
7,315
4
7,315
4
UL
4
7,315
4
7,925
5
11,887
4
5,791
55
2
2,591
2
2,896
2
2,896
2
2,896
UL
UL
4
7,010
2
4,420
2
4,724
3
7,010
1
2,134
1
2,134
2
4,267
3
5,334
3
7,010
3
3,048
1
3,353
1
3,353
2
3,962
4
3,810
4
4,877
4
4,877
4
UL
4
4,877
3
5,334
4
7,925
2
2,591
65
3
4,267
3
4,267
3
4,267
3
4,267
UL
UL
5
8,687
3
7,163
3
5,791
4
8,687
1
2,896
2
2,896
4
5,334
5
8,687
3
8,687
4
5,029
1
3,658
2
3,200
3
7,163
4
5,639
4
7,315
4
7,315
4
UL
4
7,315
3
7,925
4
11,887
3
4,267
55
2
2,591
2
2,896
2
2,896
2
2,896
UL
UL
4
5,791
2
4,420
2
3,658
3
5,486
1
2,134
1
2,134
2
3,962
3
5,334
3
5,791
3
3,048
NP
NP
1
2,286
2
3,962
4
3,810
4
4,877
4
4,877
4
UL
4
4,877
3
5,334
4
7,925
2
2,591
65
3
4,572
3
4,572
3
4,572
3
4,572
UL
UL
5
10,973
3
7,772
4
10,211
5
24,536
1
3,200
2
3,200
4
7,772
5
10,973
3
10,973
4
5,486
1
3,658
2
3,658
3
7,772
4
6,248
4
6,248
4
6,248
4
UL
4
6,248
4
7,772
5
11,735
4
5,486
TYPE V
A
B
50
2
3,505
2
3,505
2
3,505
2
3,505
UL
UL
3
5,486
1
5,639
2
4,267
3
6,401
1
2,286
1
2,286
2
3,048
3
5,486
3
5,486
3
3,200
1
2,896
2
2,286
1
5,639
3
4,267
3
3,658
3
3,658
3
UL
3
3,658
3
4,267
4
6,401
2
2,743
40
1
1,676
1
1,829
1
1,829
1
1,829
UL
UL
2
2,743
1
2,896
1
2,591
2
3,962
NP
NP
1
914
1
1,524
2
1,981
2
2,743
2
1,372
NP
NP
1
1,524
1
2,743
1
2,743
2
2,134
2
2,134
3
UL
2
2,134
1
2,743
2
4,115
1
1,676
UL = Unlimited, NP = Not permitted; a = As applicable in SBC 100; b.= For open parking structures, see
Section 2B.6.3; and c.= For private garages, see Section 2B.6.1.
SBC 801
2007
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GENERAL BUILDING HEIGHTS AND AREAS
3.4.2
Automatic sprinkler system increase. Where a building is equipped throughout
with an approved automatic sprinkler system in accordance with Section 7.3.3.1.1,
the value specified in Table 3.3 for maximum height is increased by 6.1 m and the
maximum number of stories is increased by one story. These increases are
permitted in addition to the area increase in accordance with Sections 3.6.2 and
3.6.3. For Group R buildings equipped throughout with an approved automatic
sprinkler system in accordance with Section 7.3.3.1.2, the value specified in Table
3.3 for maximum height is increased by 6.1 m and the maximum number of stories
is increased by one story, but shall not exceed four stories or 18.3 m, respectively.
Exceptions:
1. Group I-2 of Type IIB, III, IV or V construction.
2. Group H-1, H-2, H-3 or H-5.
3. Fire-resistance rating substitution in accordance with Table 4A.1 (FR Rated
Requirements for Building Elements).
3.4.3
Roof structures. Towers, spires, steeples and other roof structures shall be
constructed of materials consistent with the required type of construction of the
building except where other construction is permitted by Section 6.9.2.1 of SBC
201. Such structures shall not be used for habitation or storage. The structures
shall be unlimited in height if of noncombustible materials and shall not extend
more than 6.1 m above the allowable height if of combustible materials (see
Chapter 6 of SBC 201 for additional requirements).
SECTION 3.5
MEZZANINES
3.5.1
General. A mezzanine or mezzanines in compliance with this section shall be
considered a portion of the floor below. Such mezzanines shall not contribute to
either the building area or number of stories as regulated by Section 3.3.1. The
area of the mezzanine shall be included in determining the fire area defined in
Section 4A.2. The clear height above and below the mezzanine floor construction
shall not be less than 2.1 m.
3.5.2
Area limitation. The aggregate area of a mezzanine or mezzanines within a room
shall not exceed one-third of the area of that room or space in which they are
located. The enclosed portions of rooms shall not be included in a determination of
the size of the room in which the mezzanine is located. In determining the
allowable mezzanine area, the area of the mezzanine shall not be included in the
area of the room.
Exception: The aggregate area of mezzanines in buildings and structures of Type I
or II construction for special industrial occupancies in accordance with Section
3.3.1.2 shall not exceed two-thirds of the area of the room.
3.5.3
Egress. Each occupant of a mezzanine shall have access to at least two
independent means of egress where the common path of egress travel exceeds the
limitations of Section 8.4.2.5. Where a stairway provides a means of exit access
from a mezzanine, the maximum travel distance includes the distance traveled on
the stairway measured in the plane of the tread nosing.
Exceptions:
1. A single means of egress shall be permitted in accordance with Section
SBC 801
2007
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GENERAL BUILDING HEIGHTS AND AREAS
8.4.2.1.
2. Accessible means of egress shall be provided in accordance with Section
8.3.2.13.
3.5.4
Openness. A mezzanine shall be open and unobstructed to the room in which such
mezzanine is located except for walls not more than 1067 mm high, columns and
posts.
Exceptions:
1. Mezzanines or portions thereof are not required to be open to the room in
which the mezzanines are located, provided that the occupant load of the
aggregate area of the enclosed space does not exceed 10 add units.
2. A mezzanine having two or more means of egress is not required to be open to
the room in which the mezzanine is located, if at least one of the means of
egress provides direct access to an exit from the mezzanine level.
3. Mezzanines or portions thereof are not required to be open to the room in
which the mezzanines are located, provided that the aggregate floor area of
the enclosed space does not exceed 10 percent of the mezzanine area.
4. In industrial facilities, mezzanines used for control equipment are permitted to
be glazed on all sides.
5. In Group F occupancies of unlimited area, meeting the requirements of
Section 3.7.2 or 3.7.3, mezzanines or portions thereof are not required to be
open to the room in which the mezzanines are located, provided that an
approved fire alarm system is installed throughout the entire building or
structure and notification appliances are installed throughout the mezzanines
in accordance with the provisions of NFPA 72. In addition, the fire alarm
system shall be initiated by automatic sprinkler water flow.
3.5.5
Industrial equipment platforms. Industrial equipment platforms in buildings
shall not be considered as a portion of the floor below. Such equipment platforms
shall not contribute to either the building area or the number of stories as regulated
by Section 3.3.1. The area of the industrial equipment platform shall not be
included in determining the fire area. Industrial equipment platforms shall not be a
part of any mezzanine, and such platforms and the walkways, stairs and ladders
providing access to an equipment platform shall not serve as a part of the means of
egress from the building.
Area limitations. The aggregate area of all industrial equipment platforms within
a room shall not exceed two-thirds of the area of the room in which they occur.
Where an equipment platform is located in the same room as a mezzanine, the area
of the mezzanine shall be determined by Section 3.5.2, and the combined
aggregate area of the equipment platforms and mezzanines shall not exceed twothirds of the room in which they occur.
Fire suppression. Where located in a building that is required to be protected by
an automatic sprinkler system, industrial equipment platforms shall be fully
protected by sprinklers above and below the platform, where required by the
standards referenced in Section 7.3.3.
Guards. Equipment platforms shall have guards where required by Section 8.12.1.
3.5.5.1
3.5.5.2
3.5.5.3
SBC 801
2007
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GENERAL BUILDING HEIGHTS AND AREAS
SECTION 3.6
AREA MODIFICATIONS
3.6.1
General. The areas limited by Table 3.3 shall be permitted to be increased due to
frontage (If) and automatic sprinkler system protection (Is) in accordance with the
following:
(Equation 3-1)
3.6.1.1
3.6.2
Where:
Aa
= Allowable area per floor (square meters).
At
= Tabular area per floor in accordance with Table 3.3 (square meters).
= Area increase due to frontage (percent) as calculated in accordance with
If
Section 3.6.2.
Is
= Area increase due to sprinkler protection (percent) as calculated in
accordance with Section 3.6.3.
Basements. A single basement need not be included in the total allowable area
provided such basement does not exceed the area permitted for a one-story
building.
Frontage increase. Every building shall adjoin or have access to a public way to
receive an area increase for frontage. Where a building has more than 25 percent
of its perimeter on a public way or open space having a minimum width of 6.1 m,
the frontage increase shall be determined in accordance with the following:
(Equation 3-2)
3.6.2.1
3.6.2.2
SBC 801
Where:
If
= Area increase due to frontage
F
= Building perimeter which fronts on a public way or open space having
6.1 m open minimum width (meters)
P
= Perimeter of entire building (meters)
= Width of public way or open space (meters) in accordance with Section
W
3.6.2.1.
Width limits. W must be at least 6.1 m and the quantity W divided by 30 shall not
exceed 1.0 where the value of W varies along the perimeter of the building, the
calculation performed in accordance with Equation 3-2 shall be based on the
weighted average of each portion of exterior wall and open space where the value
of W is between 6.1 and 9.1 m.
Exception: The quantity W divided by 30 shall be permitted to not exceed 2.0
when all of the following conditions exist:
1. The building is permitted to be unlimited in area by Section 3.7; and
2. The only provision preventing unlimited area is compliance with the 18.3 m
public way or yard requirement, as applicable.
Open space limits. Such open space shall be either on the same lot or dedicated
for public use and shall be accessed from a street or approved fire lane.
2007
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GENERAL BUILDING HEIGHTS AND AREAS
3.6.3
Automatic sprinkler system increase. Where a building is protected throughout
with an approved automatic sprinkler system in accordance with Section 7.3.3.1.1,
the area limitation in Table 3.3 is permitted to be increased by an additional 200
percent (Is=200 percent) for multistory buildings and an additional 300 percent
(Is=300 percent) for single-story buildings. These increases are permitted in
addition to the height and story increases in accordance with Section 3.4.2.
Exceptions:
1. Buildings with an occupancy in Group H-1, H-2 or H-3.
2. Fire-resistance rating substitution in accordance with Table 4A.1, Note d.
3.6.4
Area determination. The maximum area of a building with more than one story
shall be determined by multiplying the allowable area of the first floor (Aa), as
determined in Section 3.6.1, by the number of stories as listed below.
1. For two-story buildings, multiply by 2;
2. For three-story or higher buildings, multiply by 3; and
3. No story shall exceed the allowable area per floor (Aa), as determined in
Section 3.6.1 for the occupancies on that floor.
Exceptions:
1. Unlimited area buildings in accordance with Section 3.7.
2. The maximum area of a building equipped with an automatic sprinkler system
in accordance with Section 7.3.3.1.2 shall be determined by multiplying the
allowable area per floor (Aa), as determined in Section 3.6.1 by the number of
stories.
SECTION 3.7
UNLIMITED AREA BUILDINGS
3.7.1
Non-sprinklered, one story. The area of a one-story, Group F-2 or S-2 building
shall not be limited when the building is surrounded and adjoined by public ways
or yards not less than 18.3 m in width.
3.7.2
Sprinklered, one story. The area of a one-story, Group B, F, M or S building or a
one-story Group A-4 building of other than Type V construction shall not be
limited when the building is provided with an automatic sprinkler system
throughout in accordance with Section 7.3.3.1.1, and is surrounded and adjoined
by public ways or yards not less than 18.3 m in width.
Exceptions:
1. Buildings and structures of Type I and II construction for rack storage
facilities which do not have access by the public shall not be limited in height
provided that such buildings conform to the requirements of Section 3.7.1 and
NFPA 231C.
2. The automatic sprinkler system shall not be required in areas occupied for
indoor participant sports, such as tennis, skating, swimming and equestrian
activities, in occupancies in Group A-4, provided that:
2.1 Exit doors directly to the outside are provided for occupants of the
participant sports areas, and
2.2 The building is equipped with a fire alarm system with manual fire
alarm boxes installed in accordance with Section 7.7.
SBC 801
2007
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GENERAL BUILDING HEIGHTS AND AREAS
3.7.3
Two story. The area of a two-story, Group B, F, M or S building shall not be
limited when the building is provided with an automatic sprinkler system in
accordance with Section 7.3.3.1.1 throughout, and is surrounded and adjoined by
public ways or yards not less than 18.3 m in width.
3.7.4
Reduced open space. The permanent open space of 18.3 m required in Sections
3.7.1, 3.7.2 and 3.7.3 shall be permitted to be reduced to not less than 12.2 m
provided the following requirements are met:
1. The reduced open space shall not be allowed for more than 75 percent of the
perimeter of the building.
2. The exterior wall facing the reduced open space shall have a minimum fireresistance rating of 3 hours.
3. Openings in the exterior wall, facing the reduced open space, shall have
opening protectives with a fire-resistance rating of 3 hours.
3.7.5
Group A-3 buildings. The area of a one-story, Group A-3 building used as a
prayer hall, community hall, exhibition hall, gymnasium, lecture hall, indoor
swimming pool or tennis court of Type I or II construction shall not be limited
when all of the following criteria are met:
1. The building shall not have a stage other than a platform.
2. The building shall be equipped throughout with an automatic sprinkler system
in accordance with Section 7.3.3.1.1.
3. The assembly floor shall be located at or within 533 mm of street or grade
level and all exits are provided with ramps complying with Section 8.10.1 to
the street or grade level.
4. The building shall be surrounded and adjoined by public ways or yards not
less than 18.3 m in width.
3.7.6
High-hazard use groups. Group H-2, H-3 and H-4 fire areas shall be permitted in
unlimited area buildings having occupancies in Groups F and S, in accordance
with the limitations of this section. Fire areas located at the perimeter of the
unlimited area building shall not exceed 10 percent of the area of the building nor
the area limitations specified in Table 3.3 as modified by Section 3.6.2, based
upon the percentage of the perimeter of the fire area that fronts on a street or other
unoccupied space. Other fire areas shall not exceed 25 percent of the area
limitations specified in Table 3.3. Fire-resistance-rating requirements of fire
barrier assemblies shall be in accordance with Table 2A.2.3.3.
3.7.7
Aircraft paint hangar. The area of a one-story, Group H-2 aircraft paint hangar
shall not be limited where such aircraft paint hangar complies with the provisions
of Section 2B.12.4 and is entirely surrounded by public ways or yards not less in
width than one and one-half times the height of the building.
3.7.8
Group E buildings. The area of a one-story Group E building of Type II, IIIA or
IV construction shall not be limited when the following criteria are met:
1. Each classroom shall have not less than two means of egress, with one of the
means of egress being a direct exit to the outside of the building complying
with Section 8.17.
2. The building is equipped throughout with an automatic sprinkler system in
accordance with Section 7.3.3.1.1.
SBC 801
2007
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GENERAL BUILDING HEIGHTS AND AREAS
3. The building is surrounded and adjoined by public ways or yards not less than
18.3 m in width.
3.7.9
Motion picture theaters. In buildings of Type I or II construction, the area of
one-story motion picture theaters shall not be limited when the building is
provided with an automatic sprinkler system throughout in accordance with
Section 7.3.3.1.1 and is surrounded and adjoined by public ways or yards not less
than 18.3 m in width.
SECTION 3.8
SPECIAL PROVISIONS
3.8.1
General. The provisions in this section shall permit the use of special conditions
that are exempt from, or modify, the specific requirements of this chapter
regarding the allowable heights and areas of buildings based on the occupancy
classification and type of construction, provided the special condition complies
with the provisions specified in this section for such condition and other applicable
requirements of this code.
3.8.2
Group S-2 enclosed parking garage with Group A, B, M or R above. A
basement and/or the first story above grade plane of a building shall be considered
as a separate and distinct building for the purpose of determining area limitations,
continuity of fire walls, limitation of number of stories and type of construction,
when all of the following conditions are met:
1. The basement and/or the first story above grade plane is of Type IA
construction and is separated from the building above with a horizontal
assembly having a minimum 3 hours fire-resistance rating.
2. Shaft, stairway, ramp or escalator enclosures through the horizontal assembly
shall have not less than a 2-hour fire-resistance rating with opening
protectives in accordance with Table 4B.16.3.
Exception: Where the enclosure walls below the horizontal assembly have not
less than a 3 hours fire-resistance rating with opening protectives in accordance
with Table 4B.16.3 (Fire Door & Fire Shutter Fire Protection Ratings), the
enclosure walls extending above the horizontal assembly shall be permitted to
have a 1-hour fire-resistance rating provided:
1. The building above the horizontal assembly is not required to be of Type I
construction;
2. The enclosure connects less than four stories, and
3. The enclosure opening protectives above the horizontal assembly have a
minimum 1-hour fire protection rating.
3. The building above the horizontal assembly contains only Group A having an
assembly room with an occupant load of less than 300, or Group B, M or R;
and
4. The building below the horizontal assembly is a Group S-2 enclosed parking
garage, used for the parking and storage of private motor vehicles.
Exceptions:
1. Entry lobbies, mechanical rooms and similar uses incidental to the
operation of the building shall be permitted.
2. Group A having an assembly room with an occupant load of less than 300,
or Group B or M shall be permitted in addition to those uses incidental to
SBC 801
2007
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GENERAL BUILDING HEIGHTS AND AREAS
the operation of the building (including storage areas), provided that the
entire structure below the horizontal assembly is protected throughout by
an approved automatic sprinkler system.
5. The maximum building height in feet shall not exceed the limits set forth in
Table 3.3 for the least restrictive type of construction involved.
3.8.3
Group S-2 enclosed parking garage with Group S-2 open parking garage
above. A Group S-2 enclosed parking garage located in the basement or first story
below a Group S-2 open parking garage shall be classified as a separate and
distinct building for the purpose of determining the type of construction when the
following conditions are met:
1. The allowable area of the structure shall be such that the sum of the ratios of
the actual area divided by the allowable area for each separate occupancy shall
not exceed 1.0.
2. The Group S-2 enclosed parking garage is of Type I or II construction and is
at least equal to the fire-resistance requirements of the Group S-2 open
parking garage.
3. The height and the number of the floors above the basement shall be limited as
specified in Table 2B.6.3.5 (Open Parking Garages Area & Height).
4. The floor assembly separating the Group S-2 enclosed parking garage and
Group S-2 open parking garage shall be protected as required for the floor
assembly of the Group S-2 enclosed parking garage. Openings between the
Group S-2 enclosed parking garage and Group S-2 open parking garage,
except exit openings, shall not be required to be protected.
5. The Group S-2 enclosed parking garage is used exclusively for the parking or
storage of private motor vehicles, but shall be permitted to contain an office,
waiting room and toilet room having a total area of not more than 93 m2, and
mechanical equipment rooms incidental to the operation of the building.
3.8.4
Parking beneath Group R. Where a maximum one-story above grade plane
Group S-2 parking garage, enclosed or open, or combination thereof, of Type I
construction or open of Type IV construction, with grade entrance, is provided
under a building of Group R, the number of stories to be used in determining the
minimum type of construction shall be measured from the floor above such a
parking area. The floor assembly between the parking garage and the Group R
above shall comply with the type of construction required for the parking garage
and shall also provide a fire-resistance rating not less than the mixed occupancy
separation required in Section 2A.2.3.3.
3.8.5
Group R-2 buildings of Type IIIA construction. The height limitation for
buildings of Type IIIA construction in Group R-2 shall be increased to six stories
and 23 m where the first-floor construction above the basement has a fireresistance rating of not less than 3 hours and the floor area is subdivided by 2-hour
fire-resistance-rated fire walls into areas of not more than 279 m2.
3.8.6
Group R-2 buildings of Type IIA construction. The height limitation for
buildings of Type IIA construction in Group R-2 shall be increased to nine stories
and 30.5 m where the building is separated by not less than 15.3 m from any other
building on the lot and from property lines, the exits are segregated in an area
enclosed by a 2-hour fire-resistance-rated fire wall and the first-floor construction
SBC 801
2007
3/10
GENERAL BUILDING HEIGHTS AND AREAS
has a fire-resistance rating of not less than 11/2 hours.
3.8.7
3.8.7.1
SBC 801
Open parking garage beneath Groups A, I, B, M and R. Open parking garages
constructed under Groups A, I, B, M and R shall not exceed the height and area
limitations permitted under Section 2B.6.3. The height and area of the portion of
the building above the open parking garage shall not exceed the limitations in
Section 3.3 for the upper occupancy. The height, in both feet and stories, of the
portion of the building above the open parking garage shall be measured from
grade plane and shall include both the open parking garage and the portion of the
building above the parking garage.
Fire separation. Fire separation assemblies between the parking occupancy and
the upper occupancy shall correspond to the required fire-resistance rating
prescribed in Table 2A.2.3.3 for the uses involved. The type of construction shall
apply to each occupancy individually, except that structural members, including
main bracing within the open parking structure, which is necessary to support the
upper occupancy, shall be protected with the more restrictive fire-resistance-rated
assemblies of the groups involved as shown in Table 4A.1. Means of egress for the
upper occupancy shall conform to Chapter 8 and shall be separated from the
parking occupancy by fire barriers having at least a 2-hour fire-resistance rating as
required by Section 4B.7, with self-closing doors complying with Section 4B.16.
Means of egress from the open parking garage shall comply with Section 2B.6.3.
2007
3/11
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
CHAPTER 4
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED
CONSTRUCTION
SECTION 4A
TYPES OF CONSTRUCTION
SECTION 4A.1
GENERAL
4A.1.1
Scope. The provisions of this chapter shall control the classification of buildings
as to type of construction.
SECTION 4A.2
CONSTRUCTION CLASSIFICATION
4A.2.1
4A.2.1.1
General. Buildings and structures erected or to be erected, altered or extended in
height or area shall be classified in one of the five construction types defined in
Sections 4A.2.2 through 4A.2.5. The building elements shall have a fire-resistance
rating not less than that specified in Table 4A.1 and exterior walls shall have a
fire-resistance rating not less than that specified in Table 4A.2.
Minimum requirements. A building or portion thereof shall not be required to
conform to the details of a type of construction higher than that type, which meets
the minimum requirements based on occupancy even though certain features of
such a building actually conform to a higher type of construction.
4A.2.2
Types I and II. Type I and II construction are those types of construction in which
the building elements listed in Table 4A.1 are of noncombustible materials.
4A.2.3
Type III. Type III construction is that type of construction in which the exterior
walls are of noncombustible materials and the interior building elements are of any
material permitted by these code requirements. Fire-retardant-treated wood
framing shall be permitted within exterior wall assemblies of a 2-hour rating or
less.
4A.2.4
Type IV. Type IV construction (Heavy Timber, HT) is that type of construction in
which the exterior walls are of noncombustible materials and the interior building
elements are of solid or laminated wood without concealed spaces. The details of
Type IV construction shall comply with the provisions of this section. Fireretardant-treated wood framing shall be permitted within exterior wall assemblies
with a 2-hour rating or less.
Columns. Wood columns shall be sawn or glued laminated and shall not be less
than 200 mm, nominal, in any dimension where supporting floor loads and not less
than 150 mm nominal in width and not less than 200 mm nominal in depth where
supporting roof and ceiling loads only. Columns shall be continuous or
superimposed and connected in an approved manner.
Floor framing. Wood beams and girders shall be of sawn or glued-laminated
timber and shall be not less than 150 mm nominal in width and not less than 250
mm nominal in depth. Framed sawn or glued-laminated timber arches, which
spring from the floor line and support floor loads, shall be not less than 200 mm
nominal in any dimension. Framed timber trusses supporting floor loads shall have
members of not less than 200 mm nominal in any dimension.
4A.2.4.1
4A.2.4.2
SBC 801
2007
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TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
4A.2.4.3
4A.2.4.4
4A.2.4.5
4A.2.4.6
4A.2.4.7
4A.2.5
Roof framing. Wood-frame or glued-laminated arches for roof construction,
which spring from the floor line or from grade and do not support floor loads, shall
have members not less than 150 mm nominal in width and have less than 200 mm
nominal in depth for the lower half of the height and not less than 150 mm
nominal in depth for the upper half. Framed or glued laminated arches for roof
construction that spring from the top of walls or wall abutments, framed timber
trusses and other roof framing, which do not support floor loads, shall have
members not less than 100 mm nominal in width and not less than 150 mm
nominal in depth. Spaced members shall be permitted to be composed of two or
more pieces not less than 76 mm nominal in thickness where blocked solidly
throughout their intervening spaces or where spaces are tightly closed by a
continuous wood cover plate of not less than 51 mm nominal in thickness secured
to the underside of the members. Splice plates shall be not less than 76 mm
nominal in thickness. Where protected by approved automatic sprinklers under the
roof deck, framing members shall be not less than 76 mm nominal in width.
Floors. Floors shall be without concealed spaces. Wood floors shall be of sawn or
glued-laminated planks, splined or tongue-and-groove, of not less than 76 mm
nominal in thickness covered with 25 mm nominal dimension tongue-and-groove
flooring, laid crosswise or diagonally, or 13 mm particleboard or planks not less
than 100 mm nominal in width set on edge close together and well spiked and
covered with 25 mm nominal dimension flooring or 12 mm wood structural panel
or 13 mm particleboard. The lumber shall be laid so that no continuous line of
joints will occur except at points of support. Floors shall not extend closer than 13
mm to walls. Such 13 mm space shall be covered by a molding fastened to the
wall and so arranged that it will not obstruct the swelling or shrinkage movements
of the floor. Corbeling of masonry walls under the floor shall be permitted to be
used in place of molding.
Roofs. Roofs shall be without concealed spaces and wood roof decks shall be
sawn or glued laminated, splined or tongue-and-groove plank, not less than 51 mm
thick, 32 mm wood structural panel (exterior glue), or of planks not less than 76
mm nominal in width, set on edge close together and laid as required for floors.
Other types of decking shall be permitted to be used if providing equivalent fire
resistance and structural properties.
Partitions. Partitions shall be of solid wood construction formed by not less than
two layers of 25 mm matched boards or laminated construction 100 mm thick, or
of 1-hour fire-resistance-rated construction.
Exterior structural members. Where a horizontal separation of 6.1 m or more is
provided, wood columns and arches conforming to heavy timber sizes shall be
permitted to be used externally.
Type V. Type V construction is that type of construction in which the structural
elements, exterior walls and interior walls are of any materials permitted by these
code requirements.
SECTION 4A.3
COMBUSTIBLE MATERIALS IN TYPES I
AND II CONSTRUCTION
4A.3.1
SBC 801
Allowable materials. Combustible materials shall be permitted in buildings of
Type I or II construction in the following applications and in accordance with
Sections 4A.3.1.1 through 4A.3.1.3:
1.
Fire-retardant-treated wood shall be permitted in:
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TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
SBC 801
1.1. Nonbearing partitions where the required fire-resistance rating is 2
hours or less.
1.2. Nonbearing exterior walls where no fire rating is required.
1.3. Roof construction as permitted in Table 4A.1, Note c, Item 3.
Thermal and acoustical insulation, other than foam plastics, having a flame
spread index of not more than 25.
Exceptions:
1. Insulation placed between two layers of noncombustible materials
without an intervening airspace shall be allowed to have a flame spread
index of not more than 100.
2. Insulation installed between a finished floor and solid decking without
intervening airspace shall be allowed to have a flame spread index of not
more than 200.
Foam plastics in accordance with Chapter 11 of the SBC 201.
Roof coverings that have an A, B or C classification.
Interior floor finish and interior finish, trim and millwork such as doors, door
frames, window sashes and frames.
Where not installed over 4.6 m above grade, show windows, nailing or
furring strips, wooden bulkheads below show windows, their frames, aprons
and show cases.
Finished flooring applied directly to the floor slab or to wood sleepers that
are firestopped in accordance with Section 4B.17.2.7.
Partitions dividing portions of stores, offices or similar places occupied by
one tenant only and which do not establish a corridor serving an occupant
load of 30 or more shall be permitted to be constructed of fire-retardanttreated wood, 1-hour fire-resistance-rated construction or of wood panels or
similar light construction up to 1.83 m in height.
Platforms as permitted in Section 2B.10.
Combustible exterior wall coverings, balconies, bay or oriel windows, or
similar appendages in accordance with Chapter 5 of the SBC 201.
Blocking such as for handrails, millwork, cabinets, and window and door
frames.
Light-transmitting plastics as permitted by Chapter 11 of the SBC 201.
Mastics and caulking materials applied to provide flexible seals between
components of exterior wall construction.
Exterior plastic veneer installed in accordance with Section 11.5.2 of the
SBC 201.
Nailing or furring strips as permitted by Section 6.3.3.
Heavy timber as permitted by Note c, Item 2, to Table 4A.1 and Sections
4A.2.4.7 and 5.6.3 of the SBC 201.
Aggregates, component materials and admixtures as permitted by Section
4B.3.2.2.
Sprayed cementitious and mineral fiber fire-resistance-rated materials
installed to comply with SBC 302.
Materials used to protect penetrations in fire-resistance-rated assemblies in
accordance with Section 4B.12.
Materials used to protect joints in fire-resistance-rated assemblies in
accordance with Section 4B.13.
Materials allowed in the concealed spaces of buildings of Type I and II
construction in accordance with Section 4B.17.5.
Materials exposed within plenums complying with SBC 501.
2007
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TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
4A.3.1.1
4A.3.1.2
4A.3.1.3
Ducts. The use of nonmetallic ducts shall be permitted when installed in
accordance with the limitations of the SBC 501.
Piping. The use of combustible piping materials shall be permitted when installed
in accordance with the limitations of the SBC 501 and the SBC 501.
Electrical. The use of electrical wiring methods with combustible insulation,
tubing, raceways and related components shall be permitted when installed in
accordance with the limitations of the SBC 501.
TABLE 4A.1
FIRE-RESISTANCE RATING REQUIREMENTS FOR BUILDING ELEMENTS (hours)
BUILDING ELEMENT
Structural framea
Including columns, girders, trusses
Bearing walls
Exteriorf
Interior
Nonbearing walls and partitions
Exterior
Nonbearing walls and partitions
Interiore
TYPE
I
A
B
TYPE
II
Ad B
TYPE
III
Ad
B
3b
2b
1
0
1
0
HT
1
0
3
3b
2
2b
1
1
0
0
2
1
2
0
2
1/HT
1
1
0
0
See Section
4A.2.4.6
0
0
TYPE
IV
HT
TYPE
V
Ad
B
See Table 4A.2
0
0
0
0
0
0
Floor construction
Including supporting beams and
2
2
1
0
1
0
HT
1
0
joists
Roof construction
Including supporting beams and
0
1c
0
HT
1c
0
11/2c 1c 1c
joists
a. The structural frame shall be considered to be the columns and the girders, beams, trusses and spandrels
having direct connections to the columns and bracing members designed to carry gravity loads. The
members of floor or roof panels which have no connection to the columns shall be considered secondary
members and not a part of the structural frame.
b. Roof supports: Fire-resistance ratings of structural frame and bearing walls are permitted to be reduced by
1 hour where supporting a roof only.
c. 1. Except in Factory-Industrial (F-1), Hazardous (H), Mercantile (M) and Moderate-Hazard Storage (S1) occupancies, fire protection of structural members shall not be required, including protection of roof
framing and decking where every part of the roof construction is 6.1 m or more above any floor
immediately below. Fire-retardant-treated wood members shall be allowed to be used for such
unprotected members.
2. In all occupancies, heavy timber shall be allowed where a 1-hour or less fire-resistance rating is
required.
3. In Type I and II construction, fire-retardant-treated wood shall be allowed in buildings including
girders and trusses as part of the roof construction when the building is:
i. Two stories or less in height;
ii. Type II construction over two stories; or
iii. Type I construction over two stories and the vertical distance from the upper floor to the roof is
6.1 m or more.
d. An approved automatic sprinkler system in accordance with Section 7.3.3.1.1 shall be allowed to be
substituted for 1-hour fire-resistance-rated construction, provided such system is not otherwise required by
other provisions of the code or used for an allowable area increase in accordance with Section 3.6.3 or an
allowable height increase in accordance with Section 3.4.2. The 1-hour substitution for the fire resistance
of exterior walls shall not be permitted.
e. Not less than the fire-resistance rating required by other sections of these code requirements.
f. Not less than the fire-resistance rating based on fire separation distance (see Table 4A.2).
SBC 801
2007
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TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
TABLE 4A.2
FIRE-RESISTANCE RATING REQUIREMENTS FOR EXTERIOR WALLS BASED ON FIRE
SEPARATION DISTANCEa
FIRE SEPARATION
DISTANCE
(meters)
TYPE OF
CONSTRUCTION
GROUP H
GROUP F-1, M, S-1
GROUP A, B, E, F-2,
I, Rb, S-2, U
< 1.5c
All
3
2
1
� 1.5
IA
3
2
1
< 3.1
Others
2
1
1
� 3.1
IA, IB
2
1
1
< 9.1
IIB, VB
1
0
0
Others
1
1
1
All
0
0
0
� 9.1
a.
b.
c.
Load-bearing exterior walls shall also comply with the fire-resistance rating requirements of Table
4A.1.
Group R-3 and Group U when used as accessory to Group R-3, as applicable in SBC 100 shall not
be required to have a fire-resistance rating where the fire separation distance is 0.9 m or more.
See Section 3.3.2 for party walls.
SECTION 4B
FIRE-RESISTANCE-RATED CONSTRUCTION
SECTION 4B.1
GENERAL
4B.1.1
Scope. The provisions of this chapter shall govern the materials and assemblies
used for structural fire resistance and fire-resistance-rated construction separation
of adjacent spaces to safeguard against the spread of fire and smoke within a
building and the spread of fire to or from buildings.
SECTION 4B.2
DEFINITIONS
4B.2.1
Definitions. The following words and terms shall, for the purposes of this chapter,
and as used elsewhere in these code requirements, have the meanings shown
herein.
ANNULAR SPACE. The opening around the penetrating item.
CEILING RADIATION DAMPER. A listed device installed in a ceiling
membrane of a fire-resistance-rated floor/ceiling or roof/ceiling assembly to limit
automatically the radiative heat transfer through an air inlet/outlet opening.
COMBINATION FIRE/SMOKE DAMPER. A listed device installed in ducts
and air transfer openings designed to close automatically upon the detection of
heat and to also resist the passage of air and smoke. The device is installed to
operate automatically, controlled by a smoke detection system, and where
required, is capable of being positioned from a remote command station.
DAMPER. See “Ceiling radiation damper,” “Combination fire/smoke damper,”
“Fire damper” and “Smoke damper.”
SBC 801
2007
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TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
DRAFT STOP. A material, device or construction installed to restrict the
movement of air within open spaces of concealed areas of building components
such as crawl spaces, floor/ceiling assemblies, roof/ceiling assemblies and attics.
F RATING. The time period that the through-penetration firestop system limits
the spread of fire through the penetration when tested in accordance with ASTM E
814.
FIRE AREA. The aggregate floor area enclosed and bounded by firewalls, fire
barriers, exterior walls or fire-resistance-rated horizontal assemblies of a building.
FIRE BARRIER. A fire-resistance-rated vertical or horizontal assembly of
materials designed to restrict the spread of fire in which openings are protected.
FIRE DAMPER. A listed device, installed in ducts and air transfer openings of an
air distribution system or smoke control systems, designed to close automatically
upon detection of heat, to interrupt migratory airflow, and to restrict the passage of
flame. Fire dampers are classified for use in either static systems that will
automatically shutdown in the event of a fire, or in a dynamic system that
continues to operate during a fire. A dynamic fire damper is tested and rated for
closure under airflow.
FIRE DOOR. The door component of a fire door assembly.
FIRE DOOR ASSEMBLY. Any combination of a fire door, frame, hardware,
and other accessories that together provide a specific degree of fire protection to
the opening.
FIRE PARTITION. A vertical assembly of materials designed to restrict the
spread of fire in which openings are protected.
FIRE PROTECTION RATING. The period of time that an opening protective
assembly will maintain the ability to confine a fire as determined by tests
prescribed in Section 4B.15. Ratings are stated in hours or minutes.
FIRE RESISTANCE. That property of materials or their assemblies that prevents
or retards the passage of excessive heat, hot gases or flames under conditions of
use.
FIRE-RESISTANCE RATING. The period of time a building element,
component or assembly maintains the ability to confine a fire, continues to
perform a given structural function, or both, as determined by the tests, or the
methods based on tests, prescribed in Section 4B.3.
FIRE-RESISTANT JOINT SYSTEM. An assemblage of specific materials or
products that are designed, tested, and fire-resistance rated in accordance with
either ASTM E 1966 or UL 2079 to resist for a prescribed period of time the
passage of fire through joints made in or between fire-resistance-rated assemblies.
FIRE SEPARATION DISTANCE. The distance measured from the building
face to the closest interior lot line, to the centerline of a street, alley or public way,
SBC 801
2007
4/6
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
or to an imaginary line between two buildings on the lot. The distance shall be
measured at right angles from the face of the wall.
FIRE WALL. A fire-resistance-rated wall having protected openings, which
restricts the spread of fire and extends continuously from the foundation to or
through the roof, with sufficient structural stability under fire conditions to allow
collapse of construction on either side without collapse of the wall.
FIRE WINDOW ASSEMBLY. A window constructed and glazed to give
protection against the passage of fire.
FIREBLOCKING. Building materials installed to resist the free passage of flame
to other areas of the building through concealed spaces.
FLOOR FIRE DOOR ASSEMBLY. A combination of a fire door, a frame,
hardware and other accessories installed in a horizontal plane, which together
provide a specific degree of fire protection to a through opening in a fireresistance-rated floor (see Section 4B.12.4.6).
JOINT. The linear opening in or between adjacent fire-resistance-rated assemblies
that is designed to allow independent movement of the building in any plane
caused by thermal, seismic, wind or any other loading.
MEMBRANE PENETRATION. An opening made through one side (wall, floor
or ceiling membrane) of an assembly.
MEMBRANE-PENETRATION FIRESTOP. A material, device or construction
installed to resist for a prescribed time period the passage of flame and heat
through openings in a protective membrane in order to accommodate cables, cable
trays, conduit, tubing, pipes or similar items.
PENETRATION FIRESTOP. A through-penetration fire stop or a membranepenetration fire stop.
SELF-CLOSING. As applied to a fire door or other opening, means equipped
with an approved device that will ensure closing after having been opened.
SHAFT. An enclosed space extending through one or more stories of a building,
connecting vertical openings in successive floors, or floors and roof.
SHAFT ENCLOSURE. The walls or construction forming the boundaries of a
shaft.
SMOKE BARRIER. A continuous membrane, either vertical or horizontal, such
as a wall, floor, or ceiling assembly, that is designed and constructed to restrict the
movement of smoke.
SMOKE COMPARTMENT. A space within a building enclosed by smoke
barriers on all sides, including the top and bottom.
SMOKE DAMPER. A listed device installed in ducts and air transfer openings
that is designed to resist the passage of air and smoke. The device is installed to
SBC 801
2007
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TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
operate automatically, controlled by a smoke detection system, and where
required, is capable of being positioned from a remote command station.
SPLICE. The result of a factory and/or field method of joining or connecting two
or more lengths of a fire-resistant joint system into a continuous entity.
T RATING. The time period that the penetration fire stop system, including the
penetrating item, limits the maximum temperature rise to 163°C above its initial
temperature through the penetration on the non-fire side when tested in accordance
with ASTM E 814.
THROUGH PENETRATION. An opening that passes through an entire
assembly.
THROUGH-PENETRATION FIRE STOP SYSTEM. An assemblage of
specific materials or products that are designed, tested and fire-resistance rated to
resist for a prescribed period of time the spread of fire through penetrations. The F
and T rating criteria for penetration fire stop systems shall be in accordance with
ASTM E 814. See definitions of “F rating” and “T rating.”
SECTION 4B.3
FIRE-RESISTANCE RATINGS AND FIRE TESTS
4B.3.1
Scope. Materials prescribed herein for fire resistance shall conform to the
requirements of this chapter.
4B.3.2
Fire-resistance ratings. The fire-resistance rating of building elements shall be
determined in accordance with the test procedures set forth in ASTM E 119 or in
accordance with Section 4B.3.3. Where materials, systems or devices that have not
been tested as part of a fire-resistance-rated assembly are incorporated into the
assembly, sufficient data shall be made available to the building official to show
that the required fire-resistance rating is not reduced. Materials and methods of
construction used to protect joints and penetrations in fire-resistance-rated building
elements shall not reduce the required fire-resistance rating.
Exception: In determining the fire-resistance rating of exterior bearing walls,
compliance with the ASTM E 119 criteria for unexposed surface temperature rise
and ignition of cotton waste due to passage of flame or gases is required only for a
period of time corresponding to the required fire-resistance rating of an exterior
nonbearing wall with the same fire separation distance, and in a building of the
same group. When the fire-resistance rating determined in accordance with this
exception exceeds the fire-resistance rating determined in accordance with ASTM
E 119, the fire exposure time period, water pressure, and application duration
criteria for the hose stream test of ASTM E 119 shall be based upon the fireresistance rating determined in accordance with this exception.
Nonsymmetrical wall construction. Interior walls and partitions of
nonsymmetrical construction shall be tested with both faces exposed to the
furnace, and the assigned fire-resistance rating shall be the shortest duration
obtained from the two tests conducted in compliance with ASTM E 119. When
evidence is furnished to show that the wall was tested with the least fire-resistant
side exposed to the furnace, subject to acceptance of the building official, the wall
need not be subjected to tests from the opposite side (see Section 4B.4.5 for
exterior walls).
4B.3.2.1
SBC 801
2007
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TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
4B.3.2.2
4B.3.2.3
Combustible components. Combustible aggregates are permitted in gypsum and
Portland cement concrete mixtures approved for fire-resistance-rated construction.
Any approved component material or admixture is permitted in assemblies if the
resulting tested assembly meets the fire-resistance test requirements of these code
requirements.
Restrained classification. Fire-resistance-rated assemblies tested under ASTM E
119 shall not be considered to be restrained unless evidence satisfactory to the
building official is furnished by the registered design professional showing that the
construction qualifies for a restrained classification in accordance with ASTM E
119. Restrained construction shall be identified on the plans.
4B.3.3
Alternative methods for determining fire resistance. The application of any of
the alternative methods listed in this section shall be based on the fire exposure
and acceptance criteria specified in ASTM E 119. The required fire resistance of a
building element shall be permitted to be established by any of the following
methods or procedures:
1. Fire-resistance designs documented in approved sources.
2. Prescriptive designs of fire-resistance-rated building elements as prescribed in
Section 4B.20.
3. Calculations in accordance with Section 4B.21.
4. Engineering analysis based on a comparison of building element designs
having fire-resistance ratings as determined by the test procedures set forth in
ASTM E 119.
5. Alternative protection methods as allowed by a building official.
4B.3.4
Noncombustibility tests. The tests indicated in Sections 4B.3.4.1 and 4B.3.4.2
shall serve as criteria for acceptance of building materials as set forth in Sections
4A.2.2, 4A.2.3 and 4A.2.4 in Type I, II, III and IV construction. The term
“noncombustible” does not apply to the flame spread characteristics of interior
finish or trim materials. A material shall not be classified as a noncombustible
building construction material if it is subject to an increase in combustibility or
flame spread beyond the limitations herein established through the effects of age,
moisture or other atmospheric conditions.
Elementary materials. Materials required to be noncombustible shall be tested in
accordance with ASTM E 136.
Composite materials. Materials having a structural base of noncombustible
material as determined in accordance with Section 4B.3.4.1 with a surfacing not
more than 3 mm thick that has a flame spread index not greater than 50 when
tested in accordance with ASTM E 84 shall be acceptable as noncombustible
materials.
4B.3.4.1
4B.3.4.2
SECTION 4B.4
EXTERIOR WALLS
4B.4.1
General. Exterior walls shall be fire-resistance rated and have opening protection
as required by this section.
4B.4.2
Projections. Cornices, eave overhangs, exterior balconies and similar architectural
appendages extending beyond the floor area shall conform to the requirements of
this section and Section 5.6 of the SBC 201. Exterior egress balconies and exterior
exit stairways shall also comply with Sections 8.13.5 and 8.22.1. Projections shall
not extend beyond the distance determined by the following two methods,
whichever results in the lesser projection:
SBC 801
2007
4/9
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
4B.4.2.1
4B.4.2.2
4B.4.2.3
1. A point one-third the distance to the lot line from an assumed vertical plane
located where protected openings are required in accordance with Section
4B.4.8.
2. More than 300 mm into areas where openings are prohibited.
Type I and II construction. Projections from walls of Type I or II construction
shall be of noncombustible materials or combustible materials as allowed by
Sections 5.6.3 and 5.6.4 of the SBC 201.
Type III, IV or V construction. Projections from walls of Type III, IV or V
construction shall be of any approved material.
Combustible projections. Combustible projections located where openings are
not permitted or where protection of openings is required shall be of at least 1-hour
fire-resistance-rated construction, Type IV construction or as required by Section
5.6.3 of the SBC 201.
Exception: Type V construction shall be allowed for R-3 occupancies, as
applicable in SBC 201.
4B.4.3
Buildings on the same lot. For the purposes of determining the required wall and
opening protection and roof-covering requirements, buildings on the same lot shall
be assumed to have an imaginary line between them. Where a new building is to
be erected on the same lot as an existing building, the location of the assumed
imaginary line with relation to the existing building shall be such that the exterior
wall and opening protection of the existing building meet the criteria as set forth in
Sections 4B.4.5 and 4B.4.8.
Exception: Two or more buildings on the same lot shall either be regulated as
separate buildings or shall be considered as portions of one building if the
aggregate area of such buildings is within the limits specified in Chapter 3 for a
single building. Where the buildings contain different occupancy groups or are of
different types of construction, the area shall be that allowed for the most
restrictive occupancy or construction.
4B.4.4
Materials. Exterior walls shall be of materials permitted by the building type of
construction.
4B.4.5
Fire-resistance ratings. Exterior walls shall be fire-resistance rated in accordance
with Tables 4A.1 and 4A.2. The fire-resistance rating of exterior walls with a fire
separation distance of greater than 1.52 m shall be rated for exposure to fire from
the inside. The fire-resistance rating of exterior walls with a fire separation
distance of 1.52 m or less shall be rated for exposure to fire from both sides.
4B.4.6
Structural stability. The wall shall extend to the height required by Section
4B.4.11 and shall have sufficient structural stability such that it will remain in
place for the duration of time indicated by the required fire-resistance rating.
4B.4.7
Unexposed surface temperature. Where protected openings are not limited by
Section 4B.4.8, the limitation on the rise of temperature on the unexposed surface
of exterior walls as required by ASTM E 119 shall not apply. Where protected
openings are limited by Section 4B.4.8, the limitation on the rise of temperature on
the unexposed surface of exterior walls as required by ASTM E 119 shall not
apply provided that a correction is made for radiation from the unexposed exterior
wall surface in accordance with the following formula:
(Equation 4B.-1)
Ae = A+ (Af � Feo)
SBC 801
2007
4/10
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
Where:
Ae = Equivalent area of protected openings.
= Actual area of protected openings.
A
Af = Area of exterior wall surface in the story under consideration exclusive
of openings, on which the temperature limitations of ASTM E 119 for
walls are exceeded.
Feo = An “equivalent opening factor” derived from Figure 4B.4.7 based on
the average temperature of the unexposed wall surface and the fireresistance rating of the wall.
FIGURE 4B.4.7 EQUIVALENT OPENING FACTOR
4B.4.8
Allowable area of openings. The maximum area of unprotected or protected
openings permitted in an exterior wall in any story shall not exceed the values set
forth in Table 4B.4.8. Where both unprotected and protected openings are located
in the exterior wall in any story, the total area of the openings shall comply with
the following formula:
A
a
�
Au
au
(Equation 4B.-2)
� 1.0
Where:
= Actual area of protected openings, or the equivalent area of protected
A
openings, Ae (see Section 4B.4.7).
= Allowable area of protected openings.
a
Au = Actual area of unprotected openings.
au = Allowable area of unprotected openings.
SBC 801
2007
4/11
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
TABLE 4B.4.8
MAXIMUM AREA OF EXTERIOR WALL OPENINGSa
CLASSIFICATION
OF OPENING
Unprotected
Protected
a.
b.
c.
d.
e.
f.
g.
h.
0 to 1e,h
Not
Permittedg
Not
Permitted
Greater than
1 to 1.5b
Not
Permittedb,g
15%
FIRE SEPARATION DISTANCE (meters)
Greater
Greater
Greater
Greater
than
than
than
than
d,f
c,d,f
c,f
1.5 to 3
3 to 4.5
4.5 to 6
6 to 7.5c,f
Greater than
7.5 to 9c,f
10%g
15%g
25%g
45%g
70%g
25%
45%
75%
No
Limit
No
Limit
Greater
than 9
No
Limit
No
Limit
Values given are percentage of the area of the exterior wall.
For occupancies in Group R-3, as applicable in SBC 201, the maximum percentage of unprotected and
protected exterior wall openings shall be 25 percent.
The area of openings in an open parking structure with a fire separation distance of greater than 3 m shall
not be limited.
For occupancies in Group H-2 or H-3, unprotected openings shall not be permitted for openings with a
fire separation distance of 4.5m or less.
For requirements for fire walls for buildings with differing roof heights, see Section 4B.5.6.1.
The area of unprotected and protected openings is not limited for occupancies in Group R-3, as applicable
in SBC 201, with a fire separation distance greater than 1.5m.
Buildings whose exterior bearing wall, exterior nonbearing wall and exterior structural frame are not
required to be fire-resistance-rated shall be permitted to have unlimited unprotected openings.
Includes accessory buildings to Group R-3 as applicable in SBC 201.
4B.4.8.1
4B.4.8.2
Automatic sprinkler system. In buildings equipped throughout with an automatic
sprinkler system in accordance with Section 7.3.3.1.1, the maximum allowable
area of unprotected openings in occupancies other than Groups H-1, H-2 and H-3
shall be the same as the tabulated limitations for protected openings.
First story. In occupancies other than Group H, unlimited unprotected openings
are permitted in the first story of exterior walls facing a street that have a fire
separation distance of greater than 4.5 m, or facing an unoccupied space. The
unoccupied space shall be on the same lot or dedicated for public use, shall not be
less than 9 m in width, and shall have access from a street by a posted fire lane in
accordance with these code requirements.
4B.4.9
Vertical separation of openings. Openings in exterior walls in adjacent stories
shall be separated vertically to protect against fire spread on the exterior of the
buildings where the openings are within 1.5 m of each other horizontally and the
opening in the lower story is not a protected opening in accordance with Section
4B.15.4.8. Such openings shall be separated vertically at least 1 m by spandrel
girders, exterior walls or other similar assemblies that have a fire-resistance rating
of at least 1 hour or by flame barriers that extend horizontally at least 0.75 m
beyond the exterior wall. Flame barriers shall also have a fire-resistance rating of
at least 1 hour. The unexposed surface temperature limitations specified in ASTM
E 119 shall not apply to the flame barriers or vertical separation unless otherwise
required by the provisions of these code requirements.
Exceptions:
1. This section shall not apply to buildings that are three stories or less in height.
2. This section shall not apply to buildings equipped throughout with an
automatic sprinkler system in accordance with Section 7.3.3.1.1 or 7.3.3.1.2.
3. Open parking garages.
4B.4.10
Vertical exposure. For buildings on the same lot, approved protectives shall be
provided in every opening that is less than 4.5 m vertically above the roof of an
adjoining building or adjacent structure that is within a horizontal fire separation
distance of 4.5 m of the wall in which the opening is located.
SBC 801
2007
4/12
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
Exception: Opening protectives are not required where the roof construction has a
fire-resistance rating of not less than 1 hour for a minimum distance of 3 m from
the adjoining building and the entire length and span of the supporting elements
for the fire-resistance-rated roof assembly has a fire-resistance rating of not less
than 1 hour.
4B.4.11
4B.4.11.1
SBC 801
Parapets. Parapets shall be provided on exterior walls of buildings.
Exceptions: A parapet need not be provided on an exterior wall where any of the
following conditions exist:
1. The wall is not required to be fire-resistance rated in accordance with Table
4A.2 because of fire separation distance.
2. The building has an area of not more than 93 m2 on any floor.
3. Walls that terminate at roofs of not less than 2-hour fire-resistance-rated
construction or where the roof, including the deck and supporting construction,
is constructed entirely of noncombustible materials.
4. One-hour fire-resistance-rated exterior walls that terminate at the underside of
the roof sheathing, deck or slab, provided:
4.1 Where the roof/ceiling framing elements are parallel to the walls, such
framing and elements supporting such framing shall not be of less than 1hour fire-resistance-rated construction for a width of 1.2 m measured
from the interior side of the wall for Groups R and U and 3 m for other
occupancies.
4.2 Where roof/ceiling framing elements are not parallel to the wall, the
entire span of such framing and elements supporting such framing shall
not be of less than 1-hour fire-resistance-rated construction.
4.3 Openings in the roof shall not be located within 1.5 m of the 1-hour fireresistance-rated exterior wall for Groups R and U and 3 m for other
occupancies.
4.4 The entire building shall be provided with not less than a Class B roof
covering.
5. In occupancies of Groups R-2 and R-3 as applicable in SBC 201, both
provided with a Class C roof covering, the exterior wall shall be permitted to
terminate at the roof sheathing or deck in Type III, IV and V construction
provided:
5.1 The roof sheathing or deck is constructed of approved noncombustible
materials or of fire-retardant-treated wood, for a distance of 1.2 m; or
5.2 The roof is protected with 16 mm Type X gypsum board directly beneath
the underside of the roof sheathing or deck, supported by a minimum of
nominal 50 mm ledgers attached to the sides of the roof framing
members, for a minimum distance of 1.2 m.
6. Where the wall is permitted to have at least 25 percent of the exterior wall
areas containing unprotected openings based on fire separation distance as
determined in accordance with Section 4B.4.8.
Parapet construction. Parapets shall have the same fire-resistance rating as that
required for the supporting wall, and on any side adjacent to a roof surface, shall
have noncombustible faces for the uppermost 500 mm, including counter flashing
and coping materials. The height of the parapet shall not be less than 0.75 m above
the point where the roof surface and the wall intersect. Where the roof slopes
toward a parapet at a slope greater than two units vertical in 12 units horizontal
(16.7-percent slope), the parapet shall extend to the same height as any portion of
the roof within a fire separation distance where protection of wall openings is
required, but in no case shall the height be less than 750 mm.
2007
4/13
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
4B.4.12
4B.4.12.1
4B.4.13
4B.4.13.1
4B.4.14
Opening protection. Windows required to be protected in accordance with
Sections 4B.4.8, 4B.4.9, or 4B.4.10 shall comply with Section 4B.15.4.8. Other
openings required to be protected with fire doors or shutters in accordance with
Sections 4B.4.8, 4B.4.9 and 4B.4.10 shall comply with Section 4B.15.3.
Exception: Fire protective assemblies are not required where the building is
protected throughout by an automatic sprinkler system and the exterior openings
are protected by an approved water curtain using automatic sprinklers approved
for that use. The sprinklers and the water curtain shall be installed in accordance
with NFPA 13.
Unprotected openings. Where protected openings are not required by Section
4B.4, windows and doors shall be constructed of any approved materials. Glazing
shall conform to the requirements of Chapter 11 of the SBC 201.
Joints. Joints made in or between exterior walls required by this section to have a
fire-resistance rating shall comply with Section 4B.13.
Exception: Joints in exterior walls that are permitted to have unprotected
openings.
Voids. The void created at the intersection of a floor/ceiling assembly and an
exterior curtain wall assembly shall be protected in accordance with Section
4B.13.4.
Ducts and air transfer openings. Penetrations by air ducts and air transfer
openings in fire-resistance-rated exterior walls required to have protected openings
shall comply with Section 4B.16.
Exception: Foundation vents installed in accordance with these code requirements
are permitted.
SECTION 4B.5
FIRE WALLS
4B.5.1
General. Each portion of a building separated by one or more fire walls that
comply with the provisions of this section shall be considered a separate building.
The extent and location of such fire walls shall provide a complete separation.
Where a fire wall also separates groups that are required to be separated by a fire
barrier wall, the most restrictive requirements of each separation shall apply. Fire
walls located on lot lines shall also comply with Section 3.3.2. Such fire walls
(party walls) shall be constructed without openings.
4B.5.2
Structural stability. Fire walls shall have sufficient structural stability under fire
conditions to allow collapse of construction on either side without collapse of the
wall for the duration of time indicated by the required fire-resistance rating.
4B.5.3
Materials. Fire walls shall be of any approved noncombustible materials.
Exception: Buildings of Type V construction.
4B.5.4
Fire-resistance rating. Fire walls shall have a fire-resistance rating of not less
than that required by Table 4B.5.4.
SBC 801
2007
4/14
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
TABLE 4B.5.4
FIRE WALL FIRE-RESISTANCE RATINGS
FIRE-RESISTANCE RATING
(hours)
3a
3
4b
2
GROUP
A, B, E, H-4, I, R-1, R-2, U
F-1, H-3b, H-5, M, S-1
H-1, H-2
F-2, S-2, R-3, R-4
a.
b.
4B.5.5
4B.5.5.1
4B.5.5.2
SBC 801
Walls shall be not less than 2-hour fire-resistance rated where separating
buildings of Type II or V construction.
For Group H-1, H-2 or H-3 buildings, also see Sections 2B.15.4 and
2B.15.5.
Horizontal continuity. Fire walls shall be continuous from exterior wall to
exterior wall and shall extend at least 500 mm beyond the exterior surface of
exterior walls.
Exceptions:
1. Fire walls shall be permitted to terminate at the interior surface of combustible
exterior sheathing or siding provided the exterior wall has a fire-resistance
rating of at least 1 hour for a horizontal distance of at least 1.2 m on both sides
of the fire wall. Openings within such exterior walls shall be protected by fire
assemblies having a fire protection rating of not less than 3/4 hour.
2. Fire walls shall be permitted to terminate at the interior surface of
noncombustible exterior sheathing, exterior siding or other noncombustible
exterior finishes provided the sheathing, siding, or other exterior
noncombustible finish extends a horizontal distance of at least 1.2 m on both
sides of the fire wall.
3. Fire walls shall be permitted to terminate at the interior surface of
noncombustible exterior sheathing where the building on each side of the fire
wall is protected by an automatic sprinkler system installed in accordance with
Section 7.3.3.1.1 or 7.3.3.1.2.
Exterior walls. Where the fire wall intersects the exterior walls, the fire-resistance
rating for the exterior walls on both sides of the fire wall shall have a 1-hour fireresistance rating with 3/4-hour opening protection where opening protection is
required. The fire-resistance rating of the exterior wall shall extend a minimum of
1.2 m on each side of the intersection of the fire wall to exterior wall. Exterior wall
intersections at fire walls that form an angle equal to or greater than 180 degrees
(3.14 rad) do not need exterior wall protection.
Horizontal projecting elements. Fire walls shall extend to the outer edge of
horizontal projecting elements such as balconies, roof overhangs, canopies,
marquees and architectural projections that are within 1.2 m of the fire wall.
Exceptions:
1. Horizontal projecting elements without concealed spaces provided the exterior
wall behind and below the projecting element has not less than 1-hour fireresistance-rated construction for a distance not less than the depth of the
projecting element on both sides of the firewall. Openings within such exterior
walls shall be protected by fire assemblies having a fire protection rating of not
less than 3/4 hour.
2. Noncombustible horizontal projecting elements with concealed spaces,
provided a minimum 1-hour fire-resistance-rated wall extends through the
concealed space. The projecting element shall be separated from the building
by a minimum of 1-hour fire-resistance-rated construction for a distance on
each side of the firewall equal to the depth of the projecting element. The wall
2007
4/15
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
is not required to extend under the projecting element where the building
exterior wall is not less than 1-hour fire-resistance-rated for a distance on each
side of the firewall equal to the depth of the projecting element. Openings
within such exterior walls shall be protected by fire assemblies having a fire
protection rating of not less than 3/4 hour.
3. For combustible horizontal projecting elements with concealed spaces, the fire
wall need only extend through the concealed space to the outer edges of the
projecting elements. The exterior wall behind and below the projecting
element shall be of not less than 1-hour fire-resistance-rated construction for a
distance not less than the depth of the projecting elements on both sides of the
fire wall. Openings within such exterior walls shall be protected by fire
assemblies having a fire-protection rating of not less than 3/4 hour.
4B.5.6
4B.5.6.1
SBC 801
Vertical continuity. Fire walls shall extend from the foundation to a termination
point at least 750 mm above both adjacent roofs.
Exceptions:
1. Stepped buildings in accordance with Section 4B.5.6.1.
2. Two-hour walls shall be permitted to terminate at the underside of the roof
sheathing, deck or slab provided:
2.1 The lower roof assembly within 1.2 m of the wall has not less than a 1hour fire-resistance rating and the entire length and span of supporting
elements for the rated roof assembly has a fire-resistance rating of not
less than 1 hour.
2.2 Openings in the roof shall not be located within 1.2 m of the fire wall.
2.3 Each building shall be provided with not less than a Class B roof
covering.
3. Walls shall be permitted to terminate at the underside of noncombustible roof
sheathing, deck, or slabs where both buildings are provided with not less than a
Class B roof covering. Openings in the roof shall not be located within 1.2 m
of the fire wall.
4. In buildings of Type III, IV and V construction, walls shall be permitted to
terminate at the underside of combustible roof sheathing or decks provided:
4.1 There are no openings in the roof within 1.2 m of the fire wall,
4.2 The roof is covered with a minimum Class B roof covering, and
4.3 The roof sheathing or deck is constructed of fire-retardant-treated wood
for a distance of 1.2 m on both sides of the wall or the roof is protected
with 16 mm Type X gypsum board directly beneath the underside of the
roof sheathing or deck, supported by a minimum of 50 mm ledgers
attached to the sides of the roof framing members for a minimum
distance of 1.2 m on both sides of the fire wall.
5. Buildings located above a parking garage designed in accordance with Section
3.8.2 shall be permitted to have the fire walls for the buildings located above
the parking garage extend from the horizontal separation between the parking
garage and the buildings.
Stepped buildings. Where a fire wall serves as an exterior wall for a building and
separates buildings having different roof levels, such wall shall terminate at a point
not less than 750 m above the lower roof level, provided the exterior wall for a
height of 4.5 m above the lower roof is not less than 1-hour fire-resistance- rated
construction from both sides with openings protected by assemblies having a 3/4hour fire protection rating.
Exception: Where the fire wall terminates at the underside of the roof sheathing,
deck or slab of the lower roof, provided:
2007
4/16
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
1. The lower roof assembly within 3 m of the wall has not less than a 1-hour fireresistance rating and the entire length and span of supporting elements for the
rated roof assembly has a fire-resistance rating of not less than 1 hour.
2. Openings in the lower roof shall not be located within 3 m of the fire wall.
4B.5.7
Combustible framing in fire walls. Adjacent combustible members entering into
a concrete or masonry firewall from opposite sides shall not have less than a 100
mm distance between embedded ends. Where combustible members frame into
hollow walls or walls of hollow units, hollow spaces shall be solidly filled for the
full thickness of the wall and for a distance not less than 100 mm above, below
and between the structural members, with noncombustible materials approved for
fire blocking.
4B.5.8
Openings. Each opening through a firewall shall be protected in accordance with
Section 4B.15.3 and shall not exceed 11 m2. The aggregate width of openings at
any floor level shall not exceed 25 percent of the length of the wall.
Exceptions:
1. Openings are not permitted in party walls constructed in accordance with
Section 3.3.2.
2. Openings shall not be limited to 11 m2 where both buildings are equipped
throughout with an automatic sprinkler system installed in accordance with
Section 7.3.3.1.1.
4B.5.9
Penetrations. Penetrations through firewalls shall comply with Section 4B.12.
4B.5.10
Joints. Joints made in or between fire walls shall comply with Section 4B.13.
4B.5.11
Ducts and air transfer openings. Ducts and air transfer openings shall not
penetrate fire walls.
Exception: Penetrations by ducts and air transfer openings of fire walls that are
not on a lot line shall be allowed provided the penetrations comply with Sections
4B.12 and 4B.16. The size and aggregate width of all openings shall not exceed
the limitations of Section 4B.5.8.
SECTION 4B.6
FIRE BARRIERS
4B.6.1
General. Fire barriers used for separation of shafts, exits, exit passageways,
horizontal exits or incidental use areas, to separate different occupancies, to
separate a single occupancy into different fire areas, or to separate other areas
where a fire barrier is required elsewhere in these code requirements or the SBC
201, shall comply with this section.
4B.6.2
Materials. The walls and floor assemblies shall be of materials permitted by the
building type of construction.
4B.6.3
Fire-resistance rating. The fire-resistance rating of the walls and floor assemblies
shall comply with this section.
Shaft enclosures. The fire-resistance rating of the fire barrier separating building
areas from a shaft shall comply with Section 4B.7.4.
Exit enclosures. The fire-resistance rating of the fire barrier separating building
areas from an exit shall comply with Section 8.19.1.
4B.6.3.1
4B.6.3.2
SBC 801
2007
4/17
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
4B.6.3.3
4B.6.3.4
4B.6.3.5
4B.6.3.6
4B.6.3.7
Exit passageway. The fire-resistance rating of the separation between building
areas and an exit passageway shall comply with Section 8.20.1.
Horizontal exit. The fire-resistance rating of the separation between building
areas connected by a horizontal exit shall comply with Section 8.21.1.
Incidental use areas. The fire barrier separating incidental use areas shall have a
fire-resistance rating of not less than that indicated in Table 2A.2.1.1.
Separation of mixed occupancies. Where the provisions of Section 2A.2.3.2 are
applicable, the fire barrier separating mixed occupancies shall have a fireresistance rating of not less than that indicated in Section 2A.2.3.2 based on the
occupancies being separated.
Single-occupancy fire areas. The fire barrier separating a single occupancy into
different fire areas shall have a fire-resistance rating of not less than that indicated
in Table 4B.6.3.7.
TABLE 4B.6.3.7
FIRE-RESISTANCE RATING REQUIREMENTS FOR FIRE
BARRIER ASSEMBLIES BETWEEN FIRE AREAS
OCCUPANCY GROUP
H-1, H-2
FIRE-RESISTANCE RATING
(hours)
4
F-1, H-3, S-1
3
A, B, E, F-2, H-4, H-5, I, M, R, S-2
2
U
1
4B.6.4
Continuity of fire barrier walls. Fire barrier walls shall extend from the top of
the floor/ceiling assembly below to the underside of the floor or roof slab or deck
above and shall be securely attached thereto. These walls shall be continuous
through concealed spaces such as the space above a suspended ceiling. The
supporting construction for fire barrier walls shall be protected to afford the
required fire-resistance rating of the fire barrier supported except for 1-hour fireresistance-rated incidental use area separations as required by Table 2A.2.1.1 in
buildings of Type IIB, IIIB and VB construction. Hollow vertical spaces within the
fire barrier wall shall be fire stopped at every floor level.
Exceptions:
1. The maximum required fire-resistance rating for assemblies supporting fire
barriers separating tank storage as provided for in Section 2B.15.7.2.1 shall be
2 hours, but not less than required by Table 4A.1 for the building construction
type.
2. Shaft enclosure shall be permitted to terminate at a top enclosure complying
with Section 4B.7.12.
4B.6.5
Horizontal fire barriers. Horizontal fire barriers shall be constructed in
accordance with Section 4B.11.
4B.6.6
Exterior walls. Where exterior walls serve as a part of a required fire-resistancerated enclosure, such walls shall comply with the requirements of Section 4B.4 for
exterior walls and the fire-resistance-rated enclosure requirements shall not apply.
Exception: Exterior walls required to be fire-resistance-rated in accordance with
Section 8.22.6.
4B.6.7
Openings. Openings in a fire barrier wall shall be protected in accordance with
Section 4B.14. Openings shall be limited to a maximum aggregate width of 25
SBC 801
2007
4/18
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
percent of the length of the wall, and the maximum area of any single opening
shall not exceed 11 m2. Openings in exit enclosures shall also comply with Section
8.20.4.
Exceptions:
1. Openings shall not be limited to 11 m2 where adjoining fire areas are equipped
throughout with an automatic sprinkler system in accordance with Section
7.3.3.1.1.
2. Fire doors serving an exit enclosure.
3. Openings shall not be limited to 11 m2 or an aggregate width of 25 percent of
the length of the wall where the opening protective assembly has been tested in
accordance with ASTM E 119 and has a minimum fire-resistance rating not
less than the fire-resistance rating of the wall.
4B.6.8
4B.6.8.1
Penetrations. Penetrations through fire barriers shall comply with Section 4B.12.
Prohibited penetrations. Penetrations into an exit enclosure shall only be allowed
when permitted by Section 8.20.5.
4B.6.9
Joints. Joints made in or between fire barriers shall comply with Section 4B.13.
4B.6.10
Ducts and air transfer openings. Penetrations by ducts and air transfer openings
shall comply with Sections 4B.12 and 4B.16.
SECTION 4B.7
SHAFT ENCLOSURES
4B.7.1
General. The provisions of this section shall apply to vertical shafts where such
shafts are required to protect openings and penetrations through floor/ceiling and
roof/ceiling assemblies.
4B.7.2
Shaft enclosure required. Openings through a floor/ceiling assembly shall be
protected by a shaft enclosure complying with this section.
Exceptions:
1. A shaft enclosure is not required for openings totally within an individual
residential dwelling unit and connecting four stories or less.
2. A shaft enclosure is not required in a building equipped throughout with an
automatic sprinkler system in accordance with Section 7.3.3.1.1 for an
escalator opening or stairway which is not a portion of the means of egress
protected according to Item 2.1 or 2.2:
2.1 Where the area of the floor opening between stories does not exceed
twice the horizontal projected area of the escalator or stairway and the
opening is protected by a draft curtain and closely spaced sprinklers in
accordance with NFPA 13. In other than Groups B and M, this
application is limited to openings that do not connect more than four
stories.
2.2 Where the opening is protected by approved power-operated automatic
shutters at every floor penetrated. The shutters shall be of
noncombustible construction and have a fire-resistance rating of not less
than 1.5 hours. The shutter shall be so constructed as to close
immediately upon the actuation of a smoke detector installed in
accordance with Section 7.7.11 and shall completely shutoff the well
opening. Escalators shall cease operation when the shutter begins to
close. The shutter shall operate at a speed of not more than 150 mm/s and
shall be equipped with a sensitive leading edge to arrest its progress
SBC 801
2007
4/19
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
where in contact with any obstacle, and to continue its progress on
release therefrom.
3. A shaft enclosure is not required for penetrations by pipe, tube, conduit, wire,
cable, and vents protected in accordance with Section 4B.12.4.
4. A shaft enclosure is not required for penetrations by ducts protected in
accordance with Section 4B.12.4. Grease ducts shall be protected in
accordance with the SBC 501.
5. A shaft enclosure is not required for floor openings complying with the
provisions for covered malls or atriums.
6. A shaft enclosure is not required for approved masonry chimneys, where
annular space protection is provided at each floor level in accordance with
Section 4B.17.2.5.
7. In other than Groups I-2 and I-3, a shaft enclosure is not required for a floor
opening that complies with the following:
7.1 Does not connect more than two stories.
7.2 Is not part of the required means of egress system except as permitted in
Section 8.19.1.
7.3 Is not concealed within the building construction.
7.4 Is not open to a corridor in Group I and R occupancies.
7.5 Is not open to a corridor on nonsprinklered floors in any occupancy.
7.6 Is separated from floor openings serving other floors by construction
conforming to required shaft enclosures.
8. A shaft enclosure is not required for automobile ramps in open parking garages
and enclosed parking garages constructed in accordance with Sections 2B.6.3
and 2B.6.4, respectively.
9. A shaft enclosure is not required for floor openings between a mezzanine and
the floor below.
10. A shaft enclosure is not required for joints protected by a fire-resistant joint
system in accordance with Section 4B.13.
11. Where permitted by other sections of these code requirements.
4B.7.3
Materials. The shaft enclosure shall be of materials permitted by the building type
of construction.
4B.7.4
Fire-resistance rating. Shaft enclosures shall have a fire-resistance rating of not
less than 2 hours where connecting four stories or more and not less than 1 hour
where connecting less than four stories. The number of stories connected by the
shaft enclosure shall include any basements but not any mezzanines. Shaft
enclosures shall be constructed as fire barriers in accordance with Section 4B.6.
Shaft enclosures shall have a fire-resistance rating not less than the floor assembly
penetrated, but need not exceed 2 hours.
4B.7.5
Continuity. Shaft enclosure walls shall extend from the top of the floor/ceiling
assembly below to the underside of the floor or roof slab or deck above and shall
be securely attached thereto. These walls shall be continuous through concealed
spaces such as the space above a suspended ceiling. The supporting construction
shall be protected to afford the required fire-resistance rating of the element
supported. Hollow vertical spaces within the shaft enclosure construction wall
shall be fire stopped at every floor level.
4B.7.6
Exterior walls. Where exterior walls serve as a part of a required shaft enclosure,
such walls shall comply with the requirements of Section 4B.4 for exterior walls
and the fire-resistance-rated enclosure requirements shall not apply.
SBC 801
2007
4/20
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
Exception: Exterior walls required to be fire-resistance rated in accordance with
Section 8.22.6.
4B.7.7
4B.7.7.1
4B.7.8
4B.7.8.1
Openings. Openings in a shaft enclosure shall be protected in accordance with
Section 4B.15 as required for fire barriers. Such openings shall be self-closing or
automatic-closing by smoke detection.
Prohibited openings. Openings other than those necessary for the purpose of the
shaft shall not be permitted in shaft enclosures.
Penetrations. Penetrations in a shaft enclosure shall be protected in accordance
with Section 4B.12 as required for fire barriers.
Prohibited penetrations. Penetrations other than those necessary for the purpose
of the shaft shall not be permitted in shaft enclosures. Ducts shall not penetrate
exit shaft enclosures.
Exception: Duct penetrations as permitted in Section 8.20.5.
4B.7.9
Joints. Joints in a shaft enclosure shall comply with Section 4B.13.
4B.7.10
Ducts and air transfer openings. Penetrations of a shaft enclosure by ducts and
air transfer openings shall comply with Sections 4B.12 and 4B.16.
4B.7.11
Enclosure at the bottom. Shafts that do not extend to the bottom of the building
or structure shall:
1. Be enclosed at the lowest level with construction of the same fire-resistance
rating as the lowest floor through which the shaft passes, but not less than the
rating required for the shaft enclosure;
2. Terminate in a room having a use related to the purpose of the shaft. The room
shall be separated from the remainder of the building by construction having a
fire-resistance rating and opening protectives at least equal to the protection
required for the shaft enclosure; or
3. Be protected by approved fire dampers installed in accordance with their
listing at the lowest floor level within the shaft enclosure.
Exceptions:
1. The fire-resistance-rated room separation is not required provided there are no
openings in or penetrations of the shaft enclosure to the interior of the building
except at the bottom. The bottom of the shaft shall be closed off around the
penetrating items with materials permitted by Section 4B.17.3.1 for draft
stopping, or the room shall be provided with an approved automatic fire
suppression system.
2. A shaft enclosure containing a refuse chute or laundry chute shall not be used
for any other purpose and shall terminate in a room protected in accordance
with Section 4B.7.13.4.
3. The fire-resistance-rated room separation and the protection at the bottom of
the shaft are not required provided there are no combustibles in the shaft and
there are no openings or other penetrations through the shaft enclosure to the
interior of the building.
4B.7.12
Enclosure at the top. A shaft enclosure that does not extend to the underside of
the roof deck of the building shall be enclosed at the top with construction of the
same fire-resistance rating as the topmost floor penetrated by the shaft, but not less
than the fire-resistance rating required for the shaft enclosure.
SBC 801
2007
4/21
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
4B.7.13
4B.7.13.1
4B.7.13.2
4B.7.13.3
4B.7.13.4
4B.7.13.5
4B.7.13.6
4B.7.14
4B.7.14.1
SBC 801
Refuse and laundry chutes. Refuse and laundry chutes, access and termination
rooms and incinerator rooms shall meet the requirements of Sections 4B.7.13.1
through 4B.7.13.6.
Exception: Chutes serving and contained within a single dwelling unit.
Refuse and laundry chute enclosures. A shaft enclosure containing a refuse or
laundry chute shall not be used for any other purpose and shall be enclosed in
accordance with Section 4B.7.4. Openings into the shaft, including those from
access rooms and termination rooms, shall be protected in accordance with this
section and Section 4B.15. Openings into chutes shall not be located in exit access
corridors. Opening protectives shall be self-closing or automatic-closing upon the
actuation of a smoke detector installed in accordance with Section 7.7.10, except
that heat-activated closing devices shall be permitted between the shaft and the
termination room.
Materials. A shaft enclosure containing a refuse or laundry chute shall be
constructed of materials as permitted by the building type of construction.
Refuse and laundry chute access rooms. Access openings for refuse and laundry
chutes shall be located in rooms or compartments completely enclosed by
construction that has a fire-resistance rating of not less than 1 hour and openings
into the access rooms shall be protected by opening protectives having a fire
protection rating of not less than 3/4 hour and shall be self-closing or automaticclosing upon the detection of smoke.
Termination room. Refuse and laundry chutes shall discharge into an enclosed
room completely separated from the remainder of the building by construction that
has a fire-resistance rating of not less than 1 hour and openings into the
termination room shall be protected by opening protectives having a fire protection
rating of not less than 3/4 hour and shall be self-closing or automatic-closing upon
the detection of smoke. Refuse chutes shall not terminate in an incinerator room.
Refuse and laundry rooms that are not provided with chutes need only comply
with Table 2A.2.1.1.
Incinerator room. Incinerator rooms shall comply with Table 2A.2.1.1.
Automatic fire sprinkler system. An approved automatic fire sprinkler system
shall be installed in accordance with Section 7.3.2.10.2.
Elevator and dumbwaiter shafts. Elevator hoist way and dumbwaiter enclosures
shall be constructed in accordance with Section 4B.7.4 and SBC 501.
Elevator lobby. Elevators opening into a fire-resistance-rated corridor as required
by Section 8.16.1 shall be provided with an elevator lobby at each floor containing
such a corridor. The lobby shall separate the elevators from the corridor by fire
partitions and the required opening protection. Elevator lobbies shall have at least
one means of egress complying with Chapter 8 and other provisions within these
code requirements.
Exceptions:
1. In office buildings, separations are not required from a street-floor elevator
lobby provided the entire street floor is equipped with an automatic sprinkler
system in accordance with Section 7.3.3.1.1.
2. Elevators not required to be located in a shaft in accordance with Section
4B.7.2.
3. Where additional doors are provided in accordance with SBC 501. Such doors
shall be tested in accordance with UL 1784 without an artificial bottom seal.
4. In other than Group I-3, and buildings more than four stories above the lowest
level of Civil Defence vehicle access, lobby separation is not required where
the building, including the lobby and corridors leading to the lobby, is
2007
4/22
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
protected by an automatic sprinkler system installed throughout in accordance
with Section 7.3.3.1.1 or 7.3.3.1.2.
SECTION 4B.8
FIRE PARTITIONS
4B.8.1
General. The following wall assemblies shall comply with this section:
1. Walls separating dwelling units in the same building.
2. Walls separating sleeping units in occupancies in Group R-1, hotel
occupancies, R-2 and I-1.
3. Walls separating tenant spaces in covered mall buildings as required by
Section 2B.2.7.2.
4. Corridor walls as required by Section 8.16.1.
4B.8.2
Materials. The walls shall be of materials permitted by the building type of
construction.
4B.8.3
Fire-resistance rating. The fire-resistance rating of the walls shall be 1 hour.
Exceptions:
1. Corridor walls as permitted by Table 8.16.1.
2. Dwelling unit and sleeping unit separations in buildings of Type IIB, IIIB and
VB construction shall have fire-resistance ratings of not less than 1/2 hour in
buildings equipped throughout with an automatic sprinkler system in
accordance with Section 7.3.3.1.1.
4B.8.4
Continuity. Fire partitions shall extend from the top of the floor assembly below
to the underside of the floor or roof slab or deck above or to the fire-resistancerated floor/ceiling or roof/ceiling assembly above, and shall be securely attached
thereto. If the partitions are not continuous to the deck, and where constructed of
combustible construction, the space between the ceiling and the deck above shall
be fire blocked or draft stopped in accordance with Sections 4B.17.2.1 and
4B.17.3.1 at the partition line. The supporting construction shall be protected to
afford the required fire-resistance rating of the wall supported, except for tenant
and sleeping unit separation walls and exit access corridor walls in buildings of
Type IIB, IIIB and VB construction.
Exceptions:
1. The wall need not be extended into the crawl space below where the floor
above the crawl space has a minimum 1-hour fire-resistance rating.
2. Where the room-side fire-resistance-rated membrane of the corridor is carried
through to the underside of a fire-resistance-rated floor or roof above, the
ceiling of the corridor shall be permitted to be protected by the use of ceiling
materials as required for a 1-hour fire-resistance-rated floor or roof system.
3. Where the corridor ceiling is constructed as required for the corridor walls, the
walls shall be permitted to terminate at the upper membrane of such ceiling
assembly.
4. The fire partition separating tenant spaces in a mall, complying with Section
2B.2.7.2, is not required to extend beyond the underside of a ceiling that is not
part of a fire-resistance-rated assembly. A wall is not required in attic or
ceiling spaces above tenant separation walls.
5. Fire blocking or draft stopping is not required at the partition line in Group R-2
buildings that do not exceed four stories in height provided the attic space is
subdivided by draft stopping into areas not exceeding 279 m2 or above every
two dwelling units, whichever is smaller.
SBC 801
2007
4/23
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
6. Fire blocking or draft stopping is not required at the partition line in buildings
equipped with an automatic sprinkler system installed throughout in
accordance with Section 7.3.3.1.1 or 7.3.3.1.2 provided that automatic
sprinklers are installed in combustible floor/ceiling and roof/ceiling spaces.
4B.8.5
Exterior walls. Where exterior walls serve as a part of a required fire-resistancerated enclosure, such walls shall comply with the requirements of Section 4B.4 for
exterior walls and the fire-resistance-rated enclosure requirements shall not apply.
4B.8.6
Openings. Openings in a fire partition shall be protected in accordance with
Section 4B.15.
4B.8.7
Penetrations. Penetrations through fire partitions shall comply with Section
4B.12.
4B.8.8
Joints. Joints made in or between fire partitions shall comply with Section 4B.13.
4B.8.9
Ducts and air transfer openings. Penetrations by ducts and air transfer openings
shall comply with Sections 4B.12 and 4B.16.
SECTION 4B.9
SMOKE BARRIERS
4B.9.1
General. Smoke barriers shall comply with this section.
4B.9.2
Materials. Smoke barriers shall be of materials permitted by the building type of
construction.
4B.9.3
Fire-resistance rating. A 1-hour fire-resistance rating is required for smoke
barriers.
Exception: Smoke barriers constructed of minimum 2.5-mm-thick steel in Group
I-3 buildings.
4B.9.4
Continuity. Smoke barriers shall form an effective membrane continuous from
outside wall to outside wall and from floor slab to floor or roof deck above,
including continuity through concealed spaces, such as those found above
suspended ceilings, and interstitial structural and mechanical spaces. The
supporting construction shall be protected to afford the required fire-resistance
rating of the wall or floor supported in buildings of other than Type IIB, IIIB or
VB construction.
Exception: Smoke barrier walls are not required in interstitial spaces where such
spaces are designed and constructed with ceilings that provide resistance to the
passage of fire and smoke equivalent to that provided by the smoke barrier walls.
4B.9.5
Openings. Openings in a smoke barrier shall be protected in accordance with
Section 4B.15.
Exception: In Group I-2, where such doors are installed across corridors, a pair of
opposite-swinging doors without a center mullion shall be installed having vision
panels with approved fire-resistance-rated glazing materials in approved fireresistance-rated frames, the area of which shall not exceed that tested. The doors
shall be close fitting within operational tolerances, and shall not have undercuts,
louvers or grilles. The doors shall have head and jamb stops, astragals or rabbets at
meeting edges and automatic-closing devices. Positive-latching devices are not
required.
SBC 801
2007
4/24
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
4B.9.6
Penetrations. Penetrations through smoke barriers shall comply with Section
4B.12.
4B.9.7
Joints. Joints made in or between smoke barriers shall comply with Section 4B.13.
4B.9.8
Duct and air transfer openings. Penetrations by duct and air transfer openings
shall comply with Sections 4B.12 and 4B.16.
SECTION 4B.10
SMOKE PARTITIONS
4B.10.1
General. Smoke partitions installed as required elsewhere in the code shall
comply with this section.
4B.10.2
Materials. The walls shall be of materials permitted by the building type of
construction.
4B.10.3
Fire-resistance rating. Unless required elsewhere in the code, smoke partitions
are not required to have a fire-resistance rating.
4B.10.4
Continuity. Smoke partitions shall extend from the floor to the underside of the
floor or roof deck above or to the underside of the ceiling above where the ceiling
membrane is constructed to limit the transfer of smoke.
4B.10.5
Openings. Windows shall be sealed to resist the free passage of smoke or be
automatic-closing upon detection of smoke. Doors in smoke partitions shall
comply with this section.
Louvers. Doors in smoke partitions shall not include louvers.
Smoke and draft-control doors. Where required elsewhere in the code, doors in
smoke partitions shall be tested in accordance with UL 1784 with an artificial
bottom seal installed across the full width of the bottom of the door assembly. The
air leakage rate of the door assembly shall not exceed 0.0154 cubic meter per
second per square meter (m3/s/m2) [15.4 (mm3/s/mm2)] of door opening at 25 Pa
for both the ambient temperature test.
Self-closing or automatic-closing doors. Where required elsewhere in the code,
doors in smoke partitions shall be self-closing or automatic-closing in accordance
with Section 4B.15.3.7.3.
4B.10.5.1
4B.10.5.2
4B.10.5.3
4B.10.6
Penetrations and joints. The space around penetrating items and in joints shall be
filled with an approved material to limit the free passage of smoke.
4B.10.7
Ducts and air transfer openings. Air transfer openings in smoke partitions shall
be provided with a smoke damper complying with Section 4B.16.3.2.
Exception: Where the installation of a smoke damper will interfere with the
operation of a required smoke control system in accordance with Section 7.9,
approved alternative protection shall be utilized.
SECTION 4B.11
HORIZONTAL ASSEMBLIES
4B.11.1
General. Floor and roof assemblies required to have a fire-resistance rating shall
comply with this section.
4B.11.2
SBC 801
Materials. The floor and roof assemblies shall be of materials permitted by the
2007
4/25
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
building type of construction.
4B.11.3
4B.11.3.1
4B.11.3.2
4B.11.3.3
Fire-resistance rating. The fire-resistance rating of floor and roof assemblies
shall not be less than that required by the building type of construction. Where the
floor assembly separates mixed occupancies, the assembly shall have a fireresistance rating of not less than that required by Section 2A.2.3.2 based on the
occupancies being separated. Where the floor assembly separates a single
occupancy into different fire areas, the assembly shall have a fire-resistance rating
of not less than that required by Section 4B.6.3.7. Floor assemblies separating
dwelling units in the same building or sleeping units in occupancies in Group R-1,
hotel occupancies, R-2 and I-1 shall be a minimum of 1-hour fire-resistance-rated
construction.
Exception: Dwelling unit and sleeping unit separations in buildings of Type IIB,
IIIB, and VB construction shall have fire-resistance ratings of not less than 1/2
hour in buildings equipped throughout with an automatic sprinkler system in
accordance with Section 7.3.3.1.1.
Ceiling panels. Where the weight of lay-in ceiling panels, used as part of fireresistance-rated floor/ceiling or roof/ceiling assemblies, is not adequate to resist an
upward force of 48 Pa, wire or other approved devices shall be installed above the
panels to prevent vertical displacement under such upward force.
Access doors. Access doors shall be permitted in ceilings of fire-resistance-rated
floor/ceiling and roof/ceiling assemblies provided such doors are tested in
accordance with ASTM E 119 as horizontal assemblies and labeled by an
approved agency for such purpose.
Unusable space. In 1-hour fire-resistance-rated floor construction, the ceiling
membrane is not required to be installed over unusable crawl spaces. In 1-hour
fire-resistance-rated roof construction, the floor membrane is not required to be
installed where unusable attic space occurs above.
4B.11.4
Continuity. Assemblies shall be continuous without openings, penetrations or
joints except as permitted by this section and Sections 4B.7.2, 4B.12.4 and 4B.13.
Skylights and other penetrations through a fire-resistance-rated roof deck are
permitted to be unprotected, provided that the structural integrity of the fireresistance-rated roof construction is maintained. Unprotected skylights shall not
be permitted in roof construction required to be fire-resistance rated in accordance
with Section 4B.4.10. The supporting construction shall be protected to afford the
required fire-resistance rating of the horizontal assembly supported.
4B.11.5
Penetrations. Penetrations through fire-resistance-rated horizontal assemblies
shall comply with Section 4B.12.
4B.11.6
Joints. Joints made in or between fire-resistance-rated horizontal assemblies shall
comply with Section 4B.13. The void created at the intersection of a floor/ceiling
assembly and an exterior curtain wall assembly shall be protected in accordance
with Section 4B.13.4.
4B.11.7
Ducts and air transfer openings. Penetrations by ducts and air transfer openings
shall comply with Sections 4B.12 and 4B.16.
SECTION 4B.12
PENETRATIONS
4B.12.1
SBC 801
Scope. The provisions of this section shall govern the materials and methods of
2007
4/26
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
construction used to protect through penetrations and membrane penetrations.
4B.12.2
Installation details. Where sleeves are used, they shall be securely fastened to the
assembly penetrated. The space between the item contained in the sleeve and the
sleeve itself and any space between the sleeve and the assembly penetrated shall
be protected in accordance with this section. Insulation and coverings on or in the
penetrating item shall not penetrate the assembly unless the specific material used
has been tested as part of the assembly in accordance with this section.
Fire-resistance-rated walls. Penetrations into or through fire walls, fire barriers,
smoke barrier walls, and fire partitions shall comply with this section.
4B.12.3.1 Through penetrations. Through penetrations of fire-resistance-rated walls shall
comply with Section 4B.12.3.1.1 or 4B.12.3.1.2.
Exception: Where the penetrating items are steel, ferrous or copper pipes or steel
conduits, the annular space between the penetrating item and the fire-resistancerated wall shall be permitted to be protected as follows:
1. In concrete or masonry walls where the penetrating item is a maximum 150
mm nominal diameter and the opening is a maximum 0.093 m2, concrete, grout
or mortar shall be permitted where installed the full thickness of the wall or the
thickness required to maintain the fire-resistance rating; or
2. The material used to fill the annular space shall prevent the passage of flame
and hot gases sufficient to ignite cotton waste where subjected to ASTM E 119
time-temperature fire conditions under a minimum positive pressure
differential of 2.5 Pa at the location of the penetration for the time period
equivalent to the fire-resistance rating of the construction penetrated.
4B.12.3.1.1 Fire-resistance-rated assemblies. Penetrations shall be installed as tested in an
approved fire-resistance-rated assembly.
4B.12.3.1.2 Through-penetration firestop system. Through penetrations shall be protected
by an approved penetration fire stop system installed as tested in accordance with
ASTM E 814 or UL 1479, with a minimum positive pressure differential of 2.5 Pa
of water and shall have an F rating of not less than the required fire-resistance
rating of the wall penetrated.
4B.12.3.2 Membrane penetrations. Membrane penetrations shall comply with Section
4B.12.3.1. Where walls and partitions are required to have a minimum 1-hour fireresistance rating, recessed fixtures shall be installed such that the required fire
resistance will not be reduced.
Exceptions:
1. Steel electrical boxes that do not exceed 0.0103 m2 in area provided the total
area of such openings does not exceed 0.0645 m2 for any 9.3 m2 of wall area.
Outlet boxes on opposite sides of the wall shall be separated as shown:
1.1 By a horizontal distance of not less than 600 mm;
1.2 By a horizontal distance of not less than the depth of the wall cavity
where the wall cavity is filled with cellulose loose fill, rock wool or slag
mineral wool insulation;
1.3 By solid fire blocking in accordance with Section 4B.17.2.1;
1.4 By protecting both outlet boxes by listed putty pads; or
1.5 By other listed materials and methods.
2. Membrane penetrations for listed electrical outlet boxes of any material are
permitted provided such boxes have been tested for use in fire-resistance-rated
assemblies and are installed in accordance with the instructions included in the
listing. Outlet boxes on opposite sides of the wall shall be separated as follows:
2.1 By a horizontal distance of not less than 600 mm;
4B.12.3
SBC 801
2007
4/27
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
4B.12.3.3
4B.12.3.4
2.2 By solid fire blocking in accordance with Section 4B.17.2.1;
2.3 By protecting both outlet boxes by listed putty pads; or
2.4 By other listed materials and methods.
3. The annular space created by the penetration of a fire sprinkler provided it is
covered by a metal escutcheon plate.
Ducts and air transfer openings. Penetrations of fire-resistance-rated walls by
ducts and air transfer openings that are not protected with fire dampers shall
comply with this section.
Dissimilar materials. Noncombustible penetrating items shall not connect to
combustible items beyond the point of fire stopping unless it can be demonstrated
that the fire-resistance integrity of the wall is maintained.
Horizontal assemblies. Penetrations of a floor, floor/ceiling assembly or the
ceiling membrane of a roof/ceiling assembly shall be protected in accordance with
Section 4B.7. Penetrations permitted by Exceptions 3 and 4 of Section 4B.7.2 shall
comply with Sections 4B.12.4.1 through 4B.12.4.4.
Exception: Penetrations located within the same room or undivided area as floor
openings not required to have a shaft enclosure in accordance with Exception 1, 2,
5, 7, 8 or 9 in Section 4B.7.2.
4B.12.4.1 Through penetrations. Through penetrations of fire-resistance-rated horizontal
assemblies shall comply with Section 4B.12.4.1.1 or 4B.12.4.1.2.
Exceptions:
1. Penetrations by steel, ferrous or copper conduits, pipes, tubes, vents, concrete,
or masonry through a single fire-resistance-rated floor assembly where the
annular space is protected with materials that prevent the passage of flame and
hot gases sufficient to ignite cotton waste where subjected to ASTM E 119
time-temperature fire conditions under a minimum positive pressure
differential of 2.5 Pa at the location of the penetration for the time period
equivalent to the fire-resistance rating of the construction penetrated.
Penetrating items with a maximum 150 mm nominal diameter shall not be
limited to the penetration of a single fire-resistance-rated floor assembly
provided that the area of the penetration does not exceed 0.093 m2 in any 9.3
m2 of floor area.
2. Penetrations in a single concrete floor by steel, ferrous or copper conduits,
pipes, tubes and vents with a maximum 150 mm nominal diameter provided
concrete, grout or mortar is installed the full thickness of the floor or the
thickness required to maintain the fire-resistance rating. The penetrating items
with a maximum 150 mm nominal diameter shall not be limited to the
penetration of a single concrete floor provided that the area of the penetration
does not exceed 0.093 m2.
3. Electrical outlet boxes of any material are permitted provided that such boxes
are tested for use in fire-resistance-rated assemblies and installed in accordance
with the tested assembly.
4B.12.4.1.1 Fire-resistance-rated assemblies. Penetrations shall be installed as tested in the
approved fire-resistance-rated assembly.
4B.12.4.1.2 Through-penetration firestop system. Through penetrations shall be protected
by an approved through-penetration fire stop system installed and tested in
accordance with ASTM E 814 or UL 1479, with a minimum positive pressure
differential of 2.5 Pa. The system shall have an F rating and a T rating of not less
than 1 hour but not less than the required rating of the floor penetrated.
Exception: Floor penetrations contained and located within the cavity of a wall do
not require a T rating.
4B.12.4
SBC 801
2007
4/28
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
Membrane penetrations. Penetrations of membranes that are part of a fireresistance-rated horizontal assembly shall comply with Section 4B.12.4.1.1 or
4B.12.4.1.2. Where floor/ceiling assemblies are required to have a minimum 1hour fire-resistance rating, recessed fixtures shall be installed such that the
required fire resistance will not be reduced.
Exceptions:
1. Membrane penetrations by steel, ferrous or copper conduits, electrical outlet
boxes, pipes, tubes, vents, concrete, or masonry-penetrating items where the
annular space is protected either in accordance with Section 4B.12.4.1 or to
prevent the free passage of flame and the products of combustion. Such
penetrations shall not exceed an aggregate area of 0.0645 m2 in any 9.3 m2 of
ceiling area in assemblies tested without penetrations.
2. Membrane penetrations by listed electrical outlet boxes of any material are
permitted provided such boxes have been tested for use in fire-resistance-rated
assemblies and are installed in accordance with the instructions included in the
listing.
3. The annular space created by the penetration of a fire sprinkler provided it is
covered by a metal escutcheon plate.
4B.12.4.3 Nonfire-resistance-rated assemblies. Penetrations of horizontal assemblies
without a required fire-resistance rating shall meet the requirements of Section
4B.7 or shall comply with Sections 4B.12.4.3.1 through 4B.12.4.3.2.
4B.12.4.3.1 Noncombustible penetrating items. Noncombustible penetrating items that
connect not more than three stories are permitted provided that the annular space is
filled with an approved noncombustible material to resist the free passage of flame
and the products of combustion.
4B.12.4.3.2 Penetrating items. Penetrating items that connect not more than two stories are
permitted provided that the annular space is filled with an approved material to
resist the free passage of flame and the products of combustion.
4B.12.4.4 Ducts and air transfer openings. Penetrations of horizontal assemblies by ducts
and air transfer openings that are not required to have dampers shall comply with
this section. Ducts and air transfer openings that are protected with dampers shall
comply with Section 4B.16.
4B.12.4.5 Dissimilar materials. Noncombustible penetrating items shall not connect to
combustible materials beyond the point of fire stopping unless it can be
demonstrated that the fire-resistance integrity of the horizontal assembly is
maintained.
4B.12.4.6 Floor fire doors. Floor fire doors used to protect openings in fire-resistance-rated
floors shall be tested in the horizontal position in accordance with ASTM E 119,
and shall achieve a fire-resistance rating not less than the assembly being
penetrated. Floor fire doors shall be labeled by an approved agency.
4B.12.4.2
SECTION 4B.13
FIRE-RESISTANT JOINT SYSTEMS
4B.13.1
SBC 801
General. Joints installed in or between fire-resistance-rated walls, floor or
floor/ceiling assemblies and roofs or roof/ceiling assemblies shall be protected by
an approved fire-resistant joint system designed to resist the passage of fire for a
time period not less than the required fire-resistance rating of the wall, floor or
roof in or between which it is installed. Fire-resistant joint systems shall be tested
in accordance with Section 4B.13.3. The void created at the intersection of a
floor/ceiling assembly and an exterior curtain wall assembly shall be protected in
accordance with Section 4B.13.4.
2007
4/29
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
Exception: Fire-resistant joint systems shall not be required for joints in all of the
following locations:
1. Floors within a single dwelling unit.
2. Floors where the joint is protected by a shaft enclosure in accordance with
Section 4B.7.
3. Floors within atriums where the space adjacent to the atrium is included in the
volume of the atrium for smoke control purposes.
4. Floors within malls.
5. Floors within open parking structures.
6. Mezzanine floors.
7. Walls that are permitted to have unprotected openings.
8. Roofs where openings are permitted.
9. Control joints not exceeding a maximum width of 16 mm and tested in
accordance with ASTM E 119.
4B.13.2
Installation. Fire-resistant joint systems shall be securely installed in or on the
joint for its entire length so as not to dislodge, loosen or otherwise impair its
ability to accommodate expected building movements and to resist the passage of
fire and hot gases.
4B.13.3
Fire test criteria. Fire-resistant joint systems shall be tested in accordance with
the requirements of either ASTM E 1966 or UL 2079. Nonsymmetrical wall joint
systems shall be tested with both faces exposed to the furnace, and the assigned
fire-resistance rating shall be the shortest duration obtained from the two tests.
When evidence is furnished to show that the wall was tested with the least fireresistant side exposed to the furnace, subject to acceptance of the building official,
the wall need not be subjected to tests from the opposite side.
Exception: For exterior walls with a horizontal fire separation distance greater
than 1.5 m, the joint system shall be required to be tested for interior fire exposure
only.
4B.13.4
Exterior curtain wall/floor intersection. Where fire-resistance-rated floor or
floor/ceiling assemblies are required, voids created at the intersection of the
exterior curtain wall assemblies and such floor assemblies shall be sealed with an
approved material or system to prevent the interior spread of fire. Such material or
systems shall be securely installed and capable of preventing the passage of flame
and hot gases sufficient to ignite cotton waste where subjected to ASTM E 119
time-temperature fire conditions under a minimum positive pressure differential of
2.5 Pa for the time period at least equal to the fire-resistance rating of the floor
assembly. Height and fire-resistance requirements for curtain wall spandrels shall
comply with Section 4B.4.9.
SECTION 4B.14
FIRE-RESISTANCE RATING OF STRUCTURAL MEMBERS
4B.14.1
Requirements. The fire-resistance rating of structural members and assemblies
shall comply with the requirements for the type of construction and shall not be
less than the rating required for the fire-resistance-rated assemblies supported.
Exception: Fire barriers and fire partitions as provided in Sections 4B.6.4 and
4B.8.4, respectively.
4B.14.2
Protection of structural members. Protection of columns, girders, trusses,
beams, lintels or other structural members that are required to have a fire-
SBC 801
2007
4/30
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
4B.14.2.1
4B.14.2.2
4B.14.2.3
4B.14.2.4
4B.14.2.5
resistance rating shall comply with this section.
Individual protection. Columns, girders, trusses, beams, lintels or other structural
members that are required to have a fire-resistance rating and that support more
than two floors or one floor and roof, or support a load-bearing wall or a non loadbearing wall more than two stories high, shall be individually protected on all sides
for the full length with materials having the required fire-resistance rating. Other
structural members required to have a fire-resistance rating shall be protected by
individual encasement, by a membrane or ceiling protection as specified in Section
4B.11, or by a combination of both. Columns shall also comply with Section
4B.14.2.2.
Column protection above ceilings. Where columns require a fire-resistance
rating, the entire column, including its connections to beams or girders, shall be
protected. Where the column extends through a ceiling, fire resistance of the
column shall be continuous from the top of the floor through the ceiling space to
the top of the column.
Truss protection. The required thickness and construction of fire-resistance-rated
assemblies enclosing trusses shall be based on the results of full-scale tests or
combinations of tests on truss components or on approved calculations based on
such tests that satisfactorily demonstrate that the assembly has the required fire
resistance.
Attachments to structural members. The edges of lugs, brackets, rivets and bolt
heads attached to structural members shall be permitted to extend to within 25 mm
of the surface of the fire protection.
Reinforcing. Thickness of protection for concrete or masonry reinforcement shall
be measured to the outside of the reinforcement except that stirrups and spiral
reinforcement ties are permitted to project not more than 13 mm into the
protection.
4B.14.3
Embedment and enclosures. Pipes, wires, conduits, ducts or other service
facilities shall not be embedded in the required fire protective covering of a
structural member that is required to be individually encased.
4B.14.4
Impact protection. Where the fire protective covering of a structural member is
subject to impact damage from moving vehicles, the handling of merchandise or
other activity, the fire protective covering shall be protected by corner guards or by
a substantial jacket of metal or other noncombustible material to a height adequate
to provide full protection, but not less than 1.5 m from the finished floor.
4B.14.5
Exterior structural members. Load-bearing structural members located within
the exterior walls or on the outside of a building or structure shall be provided with
the highest fire-resistance rating as determined in accordance with the following:
1. As required by Table 4A.1 for the type of building element based on the type
of construction of the building;
2. As required by Table 4A.1 for exterior bearing walls based on the type of
construction; and
3. As required by Table 4A.2 for exterior walls based on the fire separation
distance.
4B.14.6
Bottom flange protection. Fire protection is not required at the bottom flange of
lintels, shelf angles and plates, spanning not more than 1.8 m whether part of the
structural frame or not, and from the bottom flange of lintels, shelf angles and
plates not part of the structural frame, regardless of span.
SBC 801
2007
4/31
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
SECTION 4B.15
OPENING PROTECTIVES
4B.15.1
General. Opening protectives required by other sections of these code
requirements shall comply with the provisions of this section.
4B.15.2
Fire-resistance-rated glazing. Labeled fire-resistance-rated glazing tested as part
of a fire-resistance-rated wall assembly in accordance with ASTM E 119 shall not
be required to comply with this section.
4B.15.3
Fire door and shutter assemblies. Approved fire door and fire shutter assemblies
shall be constructed of any material or assembly of component materials that
conforms to the test requirements of Section 4B.15.3.1, 4B.15.3.2 or 4B.15.3.3 and
the fire protection rating indicated in Table 4B.15.3. Fire door assemblies and
shutters shall be installed in accordance with the provisions of this section and
NFPA 80.
Exceptions:
1. Labeled protective assemblies that conform to the requirements of this section
or UL 10A, UL 14B and UL 14C for tin-clad fire door assemblies.
2. Floor fire doors shall comply with Section 4B.12.4.6.
Side-hinged or pivoted swinging doors. Side-hinged and pivoted swinging doors
shall be tested in accordance with NFPA 252 or UL 10C. After 5 minutes into the
NFPA 252 test, the neutral pressure level in the furnace shall be established at 1 m
or less above the sill.
Other types of doors. Other types of doors, including swinging elevator doors,
shall be tested in accordance with NFPA 252 or UL 10B. The pressure in the
furnace shall be maintained as nearly equal to the atmospheric pressure as
possible. Once established, the pressure shall be maintained during the entire test
period.
4B.15.3.1
4B.15.3.2
TABLE 4B.15.3
FIRE DOOR AND FIRE SHUTTER FIRE PROTECTION RATINGS
TYPE OF ASSEMBLY
Fire walls and fire barriers having a
required fire-resistance rating greater
than 1 hour
Fire barriers having a required fireresistance rating of 1 hour:
Shaft exit enclosure and exit
passageway walls
Other fire barriers
Fire partitions:
Corridor walls
Other fire partitions
Exterior walls
a.
b.
SBC 801
REQUIRED
ASSEMBLY RATING
(hours)
4
3
2
1½
MINIMUM FIRE DOOR AND FIRE
SHUTTER ASSEMBLY RATING
(hours)
3
3a
1½
1½
1
1
1
¾
1
0.5
1
3
2
1
1/3b
1/3b
¾
1½
1½
¾
Two doors, each with a fire protection rating of 1 ½ hours, installed on opposite sides of the
same opening in a fire wall, shall be deemed equivalent in fire protection rating to one 3-hour
fire door.
For testing requirements, see Section 4B.15.3.3.
2007
4/32
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
Door assemblies in corridors and smoke barriers. Fire door assemblies required
to have a minimum fire protection rating of 20 minutes where located in corridor
walls or smoke barrier walls having a fire-resistance rating in accordance with
Table 4B.15.3 shall be tested in accordance with NFPA 252 or UL 10C without
the hose stream test. If a 20-minute fire door assembly contains glazing material,
the glazing material in the door itself shall have a minimum fire protection rating
of 20 minutes and be exempt from the hose stream test. Glazing material in any
other part of the door assembly, including transom lites and side lites, shall be
tested in accordance with NFPA 257, including the hose stream test, in accordance
with Section 4B.15.4. Fire door assemblies shall also meet the requirements for a
smoke- and draft-control door assembly tested in accordance with UL 1784 with
an artificial bottom seal installed across the full width of the bottom of the door
assembly. The air leakage rate of the door assembly shall not exceed 0.01524
m3/s/m2 of door opening at 25 Pa for both the ambient temperature and elevated
temperature tests. Louvers shall be prohibited.
Exceptions:
1. View ports that require a hole not larger than 25 mm in diameter through the
door, have at least a 6 mm glass disc and the holder is of metal that will not
melt out where subject to temperatures of 927°C.
2. Corridor door assemblies in occupancies of Group I-2 shall be in accordance
with Section 2A.7.3.1.
3. Unprotected openings shall be permitted for corridors in multi theater
complexes where each motion picture auditorium has at least one-half of its
required exit or exit access doorways opening directly to the exterior or into an
exit passageway.
4B.15.3.4 Doors in vertical exit enclosures and exit passageways. Fire door assemblies in
vertical exit enclosures and exit passageways shall have a maximum transmitted
temperature end point of not more than 232°C above ambient at the end of 30
minutes of standard fire test exposure.
Exception: The maximum transmitted temperature end point is not required in
buildings equipped throughout with an automatic sprinkler system installed in
accordance with Section 7.3.3.1.1 or 7.3.3.1.2.
2
4B.15.3.4.1 Glazing in doors. Fire-protection-rated glazing in excess of 0.065 m shall be
permitted in fire door assemblies when tested in accordance with NFPA 252 as
components of the door assemblies and not as glass lights, and shall have a
maximum transmitted temperature end point of 232°C in accordance with Section
4B.15.3.4.
Exception: The maximum transmitted temperature end point is not required in
buildings equipped throughout with an automatic sprinkler system installed in
accordance with Section 7.3.3.1.1 or 7.3.3.1.2.
4B.15.3.5 Labeled protective assemblies. Fire door assemblies shall be labeled by an
approved agency. The labels shall comply with NFPA 80, and shall be
permanently affixed to the door or frame.
4B.15.3.5.1 Fire door labeling requirements. Fire doors shall be labeled showing the name
of the manufacturer, the name of the third-party inspection agency, the fire
protection rating and, where required for fire doors in exit enclosures by Section
4B.15.3.4, the maximum transmitted temperature end point. Smoke and draft
control doors complying with UL 1784 shall be labeled as such. Labels shall be
approved and permanently affixed. The label shall be applied at the factory or
location where fabrication and assembly are performed.
4B.15.3.5.2 Oversized doors. Oversized fire doors shall bear an oversized fire door label by
an approved agency or shall be provided with a certificate of inspection furnished
4B.15.3.3
SBC 801
2007
4/33
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
4B.15.3.5.3
4B.15.3.5.4
4B.15.3.6
4B.15.3.6.1
4B.15.3.6.2
4B.15.3.6.3
4B.15.3.6.4
4B.15.3.7
4B.15.3.7.1
4B.15.3.7.2
4B.15.3.7.3
SBC 801
by an approved testing agency. When a certificate of inspection is furnished by an
approved testing agency, the certificate shall state that the door conforms to the
requirements of design, materials and construction, but has not been subjected to
the fire test.
Smoke and draft control door labeling requirements. Smoke and draft control
doors complying with UL 1784 shall be labeled in accordance with Section
4B.15.3.5.1 and shall show the letter “S” on the fire rating label of the door. This
marking shall indicate that the door and frame assembly are in compliance when
listed or labeled gasketing is also installed.
Fire door frame labeling requirements. Fire door frames shall be labeled
showing the names of the manufacturer and the third-party inspection agency.
Glazing material. Fire-protection-rated glazing conforming to the opening
protection requirements in Section 4B.15.3 shall be permitted in fire door
assemblies.
Size limitations. Wired glass used in fire doors shall comply with Table
4B.15.4.3. Other fire-protection-rated glazing shall comply with the size
limitations of NFPA 80.
Exceptions:
1. Fire-protection-rated glazing in fire doors located in fire walls shall be
prohibited except that where serving as a horizontal exit, a self-closing
swinging door shall be permitted to have a vision panel of not more than
0.0645 m2 without a dimension exceeding 250 mm.
2. Fire-protection-rated glazing shall not be installed in fire doors having a 1 ½ hour fire protection rating intended for installation in fire barriers, unless the
glazing is not more than 0.0645 m2 in area.
Exit and elevator protectives. Approved fire-protection-rated glazing used in fire
doors in elevator and stairway shaft enclosures shall be so located as to furnish
clear vision of the passageway or approach to the elevator or stairway.
Labeling. Fire-protection-rated glazing shall bear a label or other identification
showing the name of the manufacturer, the test standard and the fire protection
rating. Such label or other identification shall be issued by an approved agency and
shall be permanently affixed.
Safety glazing. Fire-protection-rated glazing installed in fire doors or fire window
assemblies in areas subject to human impact in hazardous locations shall comply
with Chapter 11 of the SBC 201.
Door closing. Fire doors shall be self-closing or automatic-closing in accordance
with this section.
Exception: Fire doors located in common walls separating sleeping units in Group
R-1 shall be permitted without automatic-closing or self-closing devices.
Latch required. Unless otherwise specifically permitted, single fire doors and
both leaves of pairs of side-hinged swinging fire doors shall be provided with an
active latch bolt that will secure the door when it is closed.
Automatic-closing fire door assemblies. Automatic-closing fire door assemblies
shall be self-closing in accordance with NFPA 80.
Smoke-activated doors. Automatic-closing fire doors installed in the following
locations shall be automatic-closing by the actuation of smoke detectors installed
in accordance with Section 7.7.10 or by loss of power to the smoke detector or
hold-open device. Fire doors that are automatic-closing by smoke detection shall
not have more than a 10-second delay before the door starts to close after the
smoke detector is actuated.
1. Doors installed across a corridor.
2. Doors that protect openings in horizontal exits, exits or exit access corridors
2007
4/34
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
required to be of fire-resistance-rated construction.
3. Doors that protect openings in walls required to be fire-resistance rated by
Table 2A.2.1.1.
4. Doors installed in smoke barriers in accordance with Section 4B.9.5.
5. Doors installed in fire partitions in accordance with Section 4B.8.6.
6. Doors installed in a fire wall in accordance with Section 4B.5.8.
4B.15.3.7.4 Doors in pedestrian ways. Vertical sliding or vertical rolling steel fire doors in
openings through which pedestrians travel shall be heat activated or activated by
smoke detectors with alarm verification.
4B.15.3.8 Swinging fire shutters. Where fire shutters of the swinging type are installed in
exterior openings, not less than one row in every three vertical rows shall be
arranged to be readily opened from the outside, and shall be identified by
distinguishing marks or letters not less 150 mm high.
4B.15.3.9 Rolling fire shutters. Where fire shutters of the rolling type are installed, such
shutters shall include approved automatic-closing devices.
4B.15.4
4B.15.4.1
4B.15.4.2
Fire-protection rated glazing. Glazing in fire window assemblies shall be fire
protection rated in accordance with this section and Table 4B.15.4. Glazing in fire
doors shall comply with Section 4B.15.3.6. Fire-protection-rated glazing installed
as an opening protective in fire partitions, smoke barriers and fire barriers shall be
tested in accordance with and shall meet the acceptance criteria of NFPA 257 for a
fire protection rating of 45 minutes. Fire-protection-rated glazing shall also
comply with NFPA 80. Fire-protection-rated glazing required in accordance with
Section 4B.4.12 for exterior wall opening protection shall be tested in accordance
with and shall meet the acceptance criteria of NFPA 257 for a fire protection rating
as required in Section 4B.15.4.7.
Exceptions:
1. Wired glass in accordance with Section 4B.15.4.3.
2. Fire-protection-rated glazing in 0.5-hour fire-resistance-rated partitions is
permitted to have an 0.33-hour fire protection rating.
Testing under positive pressure. NFPA 257 shall evaluate fire-protection-rated
glazing under positive pressure. Within the first 10 minutes of a test, the pressure
in the furnace shall be adjusted so at least two-thirds of the test specimen is above
the neutral pressure plane, and the neutral pressure plane shall be maintained at
that height for the balance of the test.
Nonsymmetrical glazing systems. Nonsymmetrical fire-protection-rated glazing
systems in fire partitions, fire barriers or in exterior walls with a fire separation of
1.5 m or less pursuant to Section 4B.4 shall be tested with both faces exposed to
the furnace, and the assigned fire protection rating shall be the shortest duration
obtained from the two tests conducted in compliance with NFPA 257.
TABLE 4B.15.4
FIRE WINDOW ASSEMBLY FIRE PROTECTION RATINGS
TYPE OF ASSEMBLY
Interior walls:
Fire walls
Fire barriers and fire partitions
REQUIRED
ASSEMBLY RATING
(hours)
All
>1
1
1
Smoke barriers
>1
Exterior walls
1
Party walls
All
a. Not permitted except as specified in Section 4B.15.2.
SBC 801
2007
MINIMUM FIRE
WINDOW ASSEMBLY
RATING
(hours)
NPa
NPa
¾
¾
1½
¾
NPa
4/35
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
4B.15.4.3
Wired glass. Steel window frame assemblies of 3 mm minimum solid section or
of not less than nominal 1-mm-thick formed sheet steel members fabricated by
pressing, mitering, riveting, interlocking or welding and having provision for
glazing with 6 mm wired glass where securely installed in the building
construction and glazed with 6 mm labeled wired glass shall be deemed to meet
the requirements for a 3/4-hour fire window assembly. Wired glass panels shall
conform to the size limitations set forth in Table 4B.15.4.3.
OPENING FIRE
PROTECTION
RATING
3 hours
TABLE 4B.15.4.3
LIMITING SIZES OF WIRED GLASS PANELS
MAXIMUM
AREA
(square mm)
0
MAXIMUM
HEIGHT
(mm)
0
MAXIMUM
WIDTH
(mm)
0
0
0
0
1 and 1 ½ hours
64,500
835
250
¾ hours
836,180
1,370
1,370
Not Limited
Not Limited
Not Limited
836,180
1,370
1,370
1 ½ hour doors in
exterior walls
20 minutes
Fire window assemblies
Nonwired glass. Glazing other than wired glass in fire window assemblies shall
be fire-protection-rated glazing installed in accordance with and complying with
the size limitations set forth in NFPA 80.
4B.15.4.5 Installation. Fire-protection-rated glazing shall be in the fixed position or be
automatic-closing and shall be installed in approved frames.
4B.15.4.6 Window mullions. Metal mullions that exceed a nominal height of 3.7 m shall be
protected with materials to afford the same fire-resistance rating as required for the
wall construction in which the protective is located.
4B.15.4.7 Interior fire window assemblies. Fire-protection-rated glazing used in fire
window assemblies located in fire partitions and fire barriers shall be limited to
use in assemblies with a maximum fire-resistance rating of 1 hour in accordance
with this section.
4B.15.4.7.1 Where permitted. Fire-protection-rated glazing shall be limited to fire partitions
designed in accordance with Section 4B.8 and fire barriers utilized in the
applications set forth in Sections 4B.6.3.5 and 4B.6.3.6 where the fire-resistance
rating does not exceed 1 hour.
4B.15.4.7.2 Size limitations. The total area of windows shall not exceed 25 percent of the area
of a common wall with any room.
4B.15.4.8 Exterior fire window assemblies. Exterior openings, other than doors, required to
be protected by Section 4B.4.12, where located in a wall required by Table 4A.2 to
have a fire-resistance rating of greater than 1 hour, shall be protected with an
assembly having a fire protection rating of not less than 1 ½ hours. Exterior
openings required to be protected by Section 4B.4.8, where located in a wall
required by Table 4A.2 to have a fire-resistance rating of 1 hour, shall be protected
with an assembly having a fire protection rating of not less than 3/4 hour. Exterior
openings required to be protected by Section 4B.4.9 or 4B.4.10 shall be protected
with an assembly having a fire protection rating of not less than 3/4 hour.
Openings in non fire-resistance-rated exterior wall assemblies that require
protection in accordance with Section 4B.4.8, 4B.4.9 or 4B.4.10 shall have a fire
protection rating of not less than 3/4 hour.
4B.15.4.4
SBC 801
2007
4/36
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
4B.15.4.9
Labeling requirements. Fire-protection-rated glazing shall bear a label or other
identification showing the name of the manufacturer, the test standard, and the fire
protection rating. Such label or identification shall be issued by an approved
agency and shall be permanently affixed.
SECTION 4B.16
DUCTS AND AIR TRANSFER OPENINGS
4B.16.1
4B.16.1.1
4B.16.2
4B.16.2.1
4B.16.2.2
4B.16.3
4B.16.3.1
General. The provisions of this section shall govern the protection of ducts and air
transfer openings in fire-resistance-rated assemblies.
Ducts and air transfer openings without dampers. Ducts and air transfer
openings that penetrate fire-resistance-rated assemblies and are not required by
this section to have dampers shall comply with the requirements of Section 4B.12.
Installation. Fire dampers, smoke dampers, combination fire/smoke dampers and
ceiling dampers located within air distribution and smoke control systems shall be
installed in accordance with the requirements of this section, the manufacturer’s
installation instructions and listing.
Smoke control system. Where the installation of a fire damper will interfere with
the operation of a required smoke control system in accordance with Section 7.9,
approved alternative protection shall be utilized.
Hazardous exhaust ducts. Fire dampers for hazardous exhaust duct systems shall
comply with the SBC 501.
Damper testing and ratings. Dampers shall be listed and bear the label of an
approved testing agency indicating compliance with the standards in this section.
Fire dampers shall comply with the requirements of UL 555. Only fire dampers
labeled for use in dynamic systems shall be installed in heating, ventilation and
air-conditioning systems designed to operate with fans on during a fire. Smoke
dampers shall comply with the requirements of UL 555S. Combination fire/smoke
dampers shall comply with the requirements of both UL 555 and UL 555S. Ceiling
radiation dampers shall comply with the requirements of UL 555C.
Fire protection rating. Fire dampers shall have the minimum fire protection
rating specified in Table 4B.16.3.1 for the type of penetration.
TABLE 4B.16.3.1
FIRE DAMPER RATING
TYPE OF PENETRATION
MINIMUM DAMPER RATING
(hour)
Less than 3-hour fire resistance-rated assemblies
1.5
3-hour or greater fire resistance-rated assemblies
3
4B.16.3.1.1 Fire damper actuating device. The fire damper actuating device shall meet one
SBC 801
of the following requirements:
1. The operating temperature shall be approximately 10°C above the normal
temperature within the duct system, but not less than 70°C.
2. The operating temperature shall be not more than 140°C where located in a
smoke control system complying with Section 7.9.
3. Where a combination fire/smoke damper is located in a smoke control system
complying with Section 7.9, the operating temperature rating shall be
approximately 10°C above the maximum smoke control system designed
operating temperature, or a maximum temperature of 177°C. The temperature
2007
4/37
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
shall not exceed the UL 555S degradation test temperature rating for a
combination fire/smoke damper.
4B.16.3.2 Smoke damper ratings. Smoke damper leakage ratings shall not be less than
Class II. Elevated temperature ratings shall not be less than 120°C.
4B.16.3.2.1 Smoke damper actuation methods. The smoke damper shall close upon
actuation of a listed smoke detector or detectors installed in accordance with
Section 7.7.10 and one of the following methods, as applicable:
1. Where a damper is installed within a duct, a smoke detector shall be installed
in the duct within 1.5 m of the damper with no air outlets or inlets between the
detector and the damper. The detector shall be listed for the air velocity,
temperature and humidity anticipated at the point where it is installed. Other
than in mechanical smoke control systems, dampers shall be closed upon fan
shutdown where local smoke detectors require a minimum velocity to operate.
2. Where a damper is installed above smoke barrier doors in a smoke barrier, a
spot-type detector listed for releasing service shall be installed on either side of
the smoke barrier door opening.
3. Where a damper is installed within an unducted opening in a wall, a spot-type
detector listed for releasing service shall be installed within 1.5 m horizontally
of the damper.
4. Where a damper is installed in a corridor wall, the damper shall be permitted to
be controlled by a smoke detection system installed in the corridor.
5. Where a total-coverage smoke detector system is provided within areas served
by a heating, ventilation and air-conditioning (HVAC) system, dampers shall
be permitted to be controlled by the smoke detection system.
4B.16.4
Access and identification. Fire and smoke dampers shall be provided with an
approved means of access, large enough to permit inspection and maintenance of
the damper and its operating parts. The access shall not affect the integrity of fireresistance-rated assemblies. The access openings shall not reduce the fireresistance rating of the assembly. Access points shall be permanently identified on
the exterior by a label having letters not less than 13 mm in height reading:
SMOKE DAMPER or FIRE DAMPER. Access doors in ducts shall be tight fitting
and suitable for the required duct construction.
4B.16.5
Where required. Fire dampers, smoke dampers, combination fire/smoke dampers
and ceiling radiation dampers shall be provided at the locations prescribed in this
section. Where an assembly is required to have both fire dampers and smoke
dampers, combination fire/smoke dampers or a fire damper and a smoke damper
shall be required.
Fire walls. Ducts and air transfer openings permitted in fire walls in accordance
with Section 4B.5.11 shall be protected with approved fire dampers installed in
accordance with their listing.
Fire barriers. Duct and air transfer openings of fire barriers shall be protected
with approved fire dampers installed in accordance with their listing.
Exception: Fire dampers are not required at penetrations of fire barriers where any
of the following apply:
1. Penetrations are tested in accordance with ASTM E119 as part of the fireresistance-rated assembly.
2. Ducts are used as part of an approved smoke control system in accordance
with Section 7.9.
3. Such walls are penetrated by ducted HVAC systems, have a required fireresistance rating of 1 hour or less, are in areas of other than Group H and are in
4B.16.5.1
4B.16.5.2
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TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
buildings equipped throughout with an automatic sprinkler system in
accordance with Section 7.3.3.1.1 or 7.3.3.1.2. For the purposes of this
exception, a ducted HVAC system shall be a duct system for conveying
supply, return or exhaust air as part of the structure’s HVAC system. Such a
duct system shall be constructed of sheet steel not less than 0.5 mm (26 gage)
thickness and shall be continuous from the air-handling appliance or
equipment to the air outlet and inlet terminals.
4B.16.5.3 Shaft enclosures. Ducts and air transfer openings shall not penetrate a shaft
serving as an exit enclosure except as permitted by Section 8.20.5.
4B.16.5.3.1 Penetrations of shaft enclosures. Shaft enclosures that are permitted to be
penetrated by ducts and air transfer openings shall be protected with approved fire
and smoke dampers installed in accordance with their listing.
Exceptions:
1. Fire dampers are not required at penetrations of shafts where:
1.1 Steel exhaust subducts extended at least 560 mm vertically in exhaust
shafts provided there is a continuous airflow upward to the outside, or
1.2 Penetrations are tested in accordance with ASTM E 119 as part of the
rated assembly, or
1.3 Ducts are used as part of an approved smoke control system designed and
installed in accordance with Section 7.9, and where the fire damper will
interfere with the operation of the smoke control system, or
1.4 The penetrations are in parking garage exhaust or supply shafts that are
separated from other building shafts by not less than 2-hour fireresistance-rated construction.
2. In Group B occupancies, equipped throughout with an automatic sprinkler
system in accordance with Section 7.3.3.1.1, smoke dampers are not required
at penetrations of shafts where:
2.1 Bathroom and toilet room exhaust openings with steel exhaust subducts,
having a wall thickness of at least 0.5 mm that extend at least 560 mm
vertically and the exhaust fan at the upper terminus, powered
continuously in accordance with the provisions of Section 7.9.11,
maintains airflow upward to the outside, or
2.2 Ducts are used as part of an approved smoke control system, designed
and installed in accordance with Section 7.9, and where the smoke
damper will interfere with the operation of the smoke control system, or
3. Smoke dampers are not required at penetration of exhaust or supply shafts in
parking garages that are separated from other building shafts by not less than
2-hour fire-resistance-rated construction.
4B.16.5.4 Fire partitions. Duct penetrations in fire partitions shall be protected with
approved fire dampers installed in accordance with their listing.
Exceptions: In occupancies other than Group H, fire dampers are not required
where any of the following apply:
1. The partitions are tenant separation and corridor walls in buildings equipped
throughout with an automatic sprinkler system in accordance with Section
7.3.3.1.1 or 7.3.3.1.2 and the duct is protected as a through penetration in
accordance with Section 4B.12.
2. The duct system is constructed of approved materials in accordance with the
SBC 501 and the duct penetrating the wall meets all of the following minimum
requirements:
2.1 The duct shall not exceed 0.065 m2.
2.2 The duct shall be constructed of steel a minimum 0.55 mm in thickness.
2.3 The duct shall not have openings that communicate the corridor with
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TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
adjacent spaces or rooms.
2.4 The duct shall be installed above a ceiling.
2.5 The duct shall not terminate at a wall register in the fire-resistance-rated
wall.
2.6 A minimum 300 mm long by 1.5 mm thick steel sleeve shall be centered
in each duct opening. The sleeve shall be secured to both sides of the
wall and all four sides of the sleeve with minimum 38 mm by 38 mm by
1.5 mm steel retaining angles. The retaining angles shall be secured to
the sleeve and the wall with No. 10 (M5) screws. The annular space
between the steel sleeve and wall opening shall be filled with rock
(mineral) wool batting on all sides.
4B.16.5.4.1 Corridors. A listed smoke damper designed to resist the passage of smoke shall
be provided at each point a duct or air transfer opening penetrates a corridor
enclosure required to have smoke and draft control doors in accordance with
Section 4B.15.3.3.
Exceptions:
1. Smoke dampers are not required where the building is equipped throughout
with an approved smoke control system in accordance with Section 7.9, and
smoke dampers are not necessary for the operation and control of the system.
2. Smoke dampers are not required in corridor penetrations where the duct is
constructed of steel not less than 0.5 mm in thickness and there are no
openings serving the corridor.
4B.16.5.5 Smoke barriers. A listed smoke damper designed to resist the passage of smoke
shall be provided at each point a duct or air transfer opening penetrates a smoke
barrier. Smoke dampers and smoke damper actuation methods shall comply with
Section 4B.16.3.2.1.
Exception: Smoke dampers are not required where the openings in ducts are
limited to a single smoke compartment and the ducts are constructed of steel.
4B.16.6
4B.16.6.1
SBC 801
Horizontal assemblies. Penetrations by ducts and air transfer openings of a floor,
floor/ceiling assembly or the ceiling membrane of a roof/ceiling assembly shall be
protected by a shaft enclosure that complies with Section 4B.7 or shall comply
with this section.
Through penetrations. In occupancies other than Groups I-2 and I-3, a duct and
air transfer opening system constructed of approved materials in accordance with
the SBC 501 that penetrates a fire-resistance-rated floor/ceiling assembly that
connects not more than two stories is permitted without shaft enclosure protection
provided a fire damper is installed at the floor line.
Exception: A duct is permitted to penetrate three floors or less without a fire
damper at each floor provided it meets all of the following requirements.
1. The duct shall be contained and located within the cavity of a wall and shall be
constructed of steel not less 0.5 mm in thickness.
2. The duct shall open into only one dwelling unit or sleeping unit and the duct
system shall be continuous from the unit to the exterior of the building.
3. The duct shall not exceed 100 mm nominal diameter and the total area of such
ducts shall not exceed 0.0645 m2 for any 9.3 m2 of floor area.
4. The annular space around the duct is protected with materials that prevent the
passage of flame and hot gases sufficient to ignite cotton waste where
subjected to ASTM E 119 time-temperature conditions under a minimum
positive pressure differential of 2.5 Pa at the location of the penetration for the
time period equivalent to the fire-resistance rating of the construction
penetrated.
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TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
4B.16.6.2
4B.16.6.3
4B.16.7
5. Grille openings located in a ceiling of a fire-resistance-rated floor/ceiling or
roof/ceiling assembly shall be protected with a ceiling radiation damper in
accordance with Section 4B.16.6.2.
Membrane penetrations. Where duct systems constructed of approved materials
in accordance with the SBC 501 penetrate a ceiling of a fire-resistance-rated
floor/ceiling or roof/ceiling assembly, shaft enclosure protection is not required
provided an approved ceiling radiation damper is installed at the ceiling line.
Where a duct is not attached to a diffuser that penetrates a ceiling of a fireresistance-rated floor/ceiling or roof/ceiling assembly, shaft enclosure protection is
not required provided an approved ceiling radiation damper is installed at the
ceiling line. Ceiling radiation dampers shall be tested in accordance with UL 555C
and constructed in accordance with the details listed in a fire-resistance-rated
assembly or shall be labeled to function as a heat barrier for air-handling
outlet/inlet penetrations in the ceiling of a fire-resistance-rated assembly. Ceiling
radiation dampers shall not be required where ASTM E 119 fire tests have shown
that ceiling radiation dampers are not necessary in order to maintain the fireresistance rating of the assembly. Ceiling radiation dampers shall not be required
where exhaust duct penetrations are protected in accordance with Section
4B.12.4.2 and the exhaust ducts are located within the cavity of a wall, and do not
pass through another dwelling unit or tenant space.
Nonfire-resistance-rated assemblies. Duct systems constructed of approved
materials in accordance with the SBC 501 that penetrate nonfire-resistance-rated
floor assemblies and that connect not more than two stories are permitted without
shaft enclosure protection provided that the annular space between the assembly
and the penetrating duct is filled with an approved noncombustible material to
resist the free passage of flame and the products of combustion. Duct systems
constructed of approved materials in accordance with the SBC 501 that penetrate
nonfire-resistance-rated floor assemblies and that connect not more than three
stories are permitted without shaft enclosure protection provided that the annular
space between the assembly and the penetrating duct is filled with an approved
noncombustible material to resist the free passage of flame and the products of
combustion, and a fire damper is installed at each floor line.
Exception: Fire dampers are not required in ducts within individual residential
dwelling units.
Flexible ducts and air connectors. Flexible ducts and air connectors shall not
pass through any fire-resistance-rated assembly. Flexible air connectors shall not
pass through any wall, floor or ceiling.
SECTION 4B.17
CONCEALED SPACES
4B.17.1
General. Fire blocking and draft stopping shall be installed in combustible
concealed locations in accordance with this section. Fire blocking shall comply
with Section 4B.17.2. Draft stopping in floor/ceiling spaces and attic spaces shall
comply with Sections 4B.17.3 and 4B.17.4, respectively. The permitted use of
combustible materials in concealed spaces of noncombustible buildings shall be
limited to the applications indicated in Section 4B.17.5.
4B.17.2
Fire blocking. In combustible construction, fire blocking shall be installed to cut
off concealed draft openings (both vertical and horizontal) and shall form an
effective barrier between floors, between a top story and a roof or attic space. Fire
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TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
blocking shall be installed in the locations specified in Sections 4B.17.2.2 through
4B.17.2.7.
4B.17.2.1 Fire blocking materials. Fire blocking shall consist of 50 mm nominal lumber or
two thicknesses of 25 mm nominal lumber with broken lap joints or one thickness
of 18 mm wood structural panel with joints backed by 18 mm wood structural
panel or one thickness of 20 mm particleboard with joints backed by 20 mm
particleboard. Gypsum board, cement fiber board, batts or blankets of mineral
wool or glass fiber or other approved materials installed in such a manner as to be
securely retained in place shall be permitted as an acceptable fire block. Batts or
blankets of mineral or glass fiber or other approved non-rigid materials shall be
permitted for compliance with the 3000 mm horizontal fire blocking in walls
constructed using parallel rows of studs or staggered studs. Loose-fill insulation
material shall not be used as a fire block unless specifically tested in the form and
manner intended for use to demonstrate its ability to remain in place and to retard
the spread of fire and hot gases. The integrity of fire blocks shall be maintained.
4B.17.2.1.1 Double stud walls. Batts or blankets of mineral or glass fiber or other approved
non-rigid materials shall be allowed as fire blocking in walls constructed using
parallel rows of studs or staggered studs.
4B.17.2.2 Concealed wall spaces. Fire blocking shall be provided in concealed spaces of
stud walls and partitions, including furred spaces, and parallel rows of studs or
staggered studs, as follows:
a. Vertically at the ceiling and floor levels.
b. Horizontally at intervals not exceeding 3 m.
4B.17.2.3 Connections between horizontal and vertical spaces. Fire blocking shall be
provided at interconnections between concealed vertical stud wall or partition
spaces and concealed horizontal spaces created by an assembly of floor joists or
trusses, and between concealed vertical and horizontal spaces such as occur at
soffits, drop ceilings, cove ceilings and similar locations.
4B.17.2.4 Stairways. Fire blocking shall be provided in concealed spaces between stair
stringers at the top and bottom of the run. Enclosed spaces under stairs shall also
comply with Section 8.19.1.5.
4B.17.2.5 Ceiling and floor openings. Where annular space protection is provided in
accordance with Exception 6 of Section 4B.7.2, Exception 1 of Section 4B.12.4.2,
or Section 4B.12.4.3, fire blocking shall be installed at openings around vents,
pipes, ducts, chimneys and fireplaces at ceiling and floor levels, with an approved
material to resist the free passage of flame and the products of combustion.
Factory-built chimneys and fireplaces shall be fire blocked in accordance with UL
103 and UL 127.
4B.17.2.6 Architectural trim. Fire blocking shall be installed within concealed spaces of
exterior wall finish and other exterior architectural elements where permitted to be
of combustible construction in Section 9.6 of the SBC 201 or where erected with
combustible frames, at maximum intervals of 6 m. If non-continuous, such
elements shall have closed ends, with at least 100 mm of separation between
sections.
Exceptions:
1. Fire blocking of cornices is not required in single-family dwellings, as
applicable in SBC 201. Fire blocking of cornices of a two-family dwelling as
applicable in SBC 201 is required only at the line of dwelling unit separation.
2. Fire blocking shall not be required where installed on noncombustible framing
and the face of the exterior wall finish exposed to the concealed space is
covered by one of the following materials:
2.1 Aluminum having a minimum thickness of 0.5 mm.
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TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
2.2
4B.17.2.7
4B.17.3
4B.17.3.1
4B.17.3.2
4B.17.3.3
Corrosion-resistant steel having a base metal thickness not less than 0.4
mm at any point.
2.3 Other approved noncombustible materials.
Concealed sleeper spaces. Where wood sleepers are used for laying wood
flooring on masonry or concrete fire-resistance-rated floors, the space between the
floor slab and the underside of the wood flooring shall be filled with an approved
material to resist the free passage of flame and products of combustion or fire
blocked in such a manner that there will be no open spaces under the flooring that
will exceed 9.3 m2 in area and such space shall be filled solidly under permanent
partitions so that there is no communication under the flooring between adjoining
rooms.
Exceptions:
1. Fire blocking is not required for slab-on-grade floors in gymnasiums.
2. Fire blocking is required only at the juncture of each alternate lane and at the
ends of each lane in a bowling facility.
Draft stopping in floors. In combustible construction, draft stopping shall be
installed to subdivide floor/ceiling assemblies in the locations prescribed in
Sections 4B.17.3.2 through 4B.17.3.3.
Draft stopping materials. Draft stopping materials shall not be less than 13 mm
gypsum board, 10 mm wood structural panel, 10 mm particleboard or other
approved materials adequately supported. The integrity of draft stops shall be
maintained.
Groups R-1, R-2, R-3 and R-4. Draft stopping shall be provided in floor/ceiling
spaces in Group R-1 buildings, in Group R-2 buildings as applicable in SBC 201
with three or more dwelling units, in Group R-3 buildings as applicable in SBC
201 with two dwelling units and in Group R-4 buildings. Draft stopping shall be
located above and in line with the dwelling unit and sleeping unit separations.
Exceptions:
1. Draft stopping is not required in buildings equipped throughout with an
automatic sprinkler system in accordance with Section 7.3.3.1.1.
2. Draft stopping is not required in buildings equipped throughout with an
automatic sprinkler system in accordance with Section 7.3.3.1.2, provided that
automatic sprinklers are also installed in the combustible concealed spaces.
Other groups. In other groups, draft stopping shall be installed so that horizontal
floor areas do not exceed 93 m2.
Exception: Draft stopping is not required in buildings equipped throughout with
an automatic sprinkler system in accordance with Section 7.3.3.1.1.
Draft stopping in attics. In combustible construction, draft stopping shall be
installed to subdivide attic spaces and concealed roof spaces in the locations
prescribed in Sections 4B.17.4.2 and 4B.17.4.3. Ventilation of concealed roof
spaces shall be maintained in accordance with Section 7.3.2 of the SBC 201.
4B.17.4.1 Draft stopping materials. Materials utilized for draft stopping of attic spaces
shall comply with Section 4B.17.3.1.
4B.17.4.1.1 Openings. Openings in the partitions shall be protected by self-closing doors with
automatic latches constructed as required for the partitions.
4B.17.4.2 Groups R-1 and R-2. Draft stopping shall be provided in attics, mansards,
overhangs or other concealed roof spaces of Group R-2 buildings with three or
more dwelling units and in all Group R-1 buildings. Draft stopping shall be
installed above, and in line with, sleeping unit and dwelling unit separation walls
that do not extend to the underside of the roof sheathing above.
4B.17.4
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TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
4B.17.4.3
4B.17.5
Exceptions:
1. Where corridor walls provide a sleeping unit or dwelling unit separation, Draft
stopping shall only be required above one of the corridor walls.
2. Draft stopping is not required in buildings equipped throughout with an
automatic sprinkler system in accordance with Section 7.3.3.1.1.
3. In occupancies in Group R-2 that do not exceed four stories in height, the attic
space shall be subdivided by draft stops into areas not exceeding 279 m2 or
above every two dwelling units, whichever is smaller.
4. Draft stopping is not required in buildings equipped throughout with an
automatic sprinkler system in accordance with Section 7.3.3.1.2, provided that
automatic sprinklers are also installed in the combustible concealed spaces.
Other groups. Draft stopping shall be installed in attics and concealed roof
spaces, such that any horizontal area does not exceed 279 m2.
Exception: Draft stopping is not required in buildings equipped throughout with
an automatic sprinkler system in accordance with Section 7.3.3.1.1.
Combustibles in concealed spaces in Type I or II construction. Combustibles
shall not be permitted in concealed spaces of buildings of Type I or II
construction.
Exceptions:
1. Combustible materials in accordance with Section 4A.3.
2. Combustible materials complying with Section 4A.2 of the SBC 501.
3. Class A interior finish materials.
4. Combustible piping within partitions or enclosed shafts installed in accordance
with the provisions of these code requirements. Combustible piping shall be
permitted within concealed ceiling spaces where installed in accordance with
the SBC 501 and the SBC 701.
SECTION 4B.18
FIRE-RESISTANCE REQUIREMENTS FOR PLASTER
4B.18.1
Thickness of plaster. The minimum thickness of gypsum plaster or Portland
cement plaster used in a fire-resistance-rated system shall be determined by the
prescribed fire tests. The plaster thickness shall be measured from the face of the
lath where applied to gypsum lath or metal lath.
4B.18.2
Plaster equivalents. For fire-resistance purposes, 13 mm of unsanded gypsum
plaster shall be deemed equivalent to 20 mm of one-to-three gypsum sand plaster
or 25 mm of Portland cement sand plaster.
4B.18.3
Noncombustible furring. In buildings of Type I and II construction, plaster shall
be applied directly on concrete or masonry or on approved noncombustible
plastering base and furring.
4B.18.4
Double reinforcement. Plaster protection more than 25 mm in thickness shall be
reinforced with an additional layer of approved lath embedded at least 20 mm
from the outer surface and fixed securely in place.
Exception: Solid plaster partitions or where otherwise determined by fire tests.
4B.18.5
Plaster alternatives for concrete. In reinforced concrete construction for
nonstructural considerations, gypsum plaster or Portland cement plaster is
permitted to be substituted for 13 mm of the required poured concrete protection,
except that a minimum thickness of 10 mm of poured concrete shall be provided in
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TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
reinforced concrete floors and 25 mm in reinforced concrete columns in addition
to the plaster finish. However, for structural considerations, reinforced concrete
shall be in accordance with SBC 304.
SECTION 4B.19
THERMAL- AND SOUND-INSULATING MATERIALS
4B.19.1
General. Insulating materials, including facings such as vapor retarders and vaporpermeable membranes, similar coverings, and all layers of single and multilayer
reflective foil insulations, shall comply with the requirements of this section.
Where a flame spread index or a smoke-developed index is specified in this
section, such index shall be determined in accordance with ASTM E 84. Any
material that is subject to an increase in flame spread index or smoke-developed
index beyond the limits herein established through the effects of age, moisture, or
other atmospheric conditions shall not be permitted.
Exceptions:
1. Fiberboard insulation shall comply with an approved method.
2. Foam plastic insulation shall comply with Chapter 11 of the SBC 201.
3. Duct and pipe insulation and duct and pipe coverings and linings in plenums
shall comply with the SBC 501.
4B.19.2
Concealed installation. Insulating materials, where concealed as installed in
buildings of any type of construction, shall have a flame spread index of not more
than 25 and a smoke-developed index of not more than 450.
Exception: Cellulose loose-fill insulation that is not spray applied, complying
with the requirements of Section 4B.19.6, shall only be required to meet the
smoke-developed index of not more than 450.
Facings. Where such materials are installed in concealed spaces in buildings of
Type III, IV or V construction, the flame spread and smoke-developed limitations
do not apply to facings, coverings, and layers of reflective foil insulation that are
installed behind and in substantial contact with the unexposed surface of the
ceiling, wall or floor finish.
4B.19.2.1
4B.19.3
4B.19.3.1
Exposed installation. Insulating materials, where exposed as installed in buildings
of any type of construction, shall have a flame spread index of not more than 25
and a smoke-developed index of not more than 450.
Exception: Cellulose loose-fill insulation that is not spray applied complying with
the requirements of Section 4B.19.6 shall only be required to meet the smokedeveloped index of not more than 450.
Attic floors. Exposed insulation materials installed on attic floors shall have a
critical radiant flux of not less than 0.12 watt per square centimeter when tested in
accordance with ASTM E 970.
4B.19.4
Loose-fill insulation. Loose-fill insulation materials that cannot be mounted in the
ASTM E 84 apparatus without a screen or artificial supports shall comply with the
flame spread and smoke-developed limits of Sections 4B.19.2 and 4B.19.3 when
tested in accordance with CAN/ULC S102.2.
Exception: Cellulose loose-fill insulation shall not be required to comply with this
test method, provided such insulation complies with the requirements of Section
4B.19.6.
4B.19.5
Roof insulation. The use of combustible roof insulation not complying with
Sections 4B.19.2 and 4B.19.3 shall be permitted in any type of construction
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TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
provided it is covered with approved roof coverings directly applied thereto.
4B.19.6
Cellulose loose-fill insulation. Cellulose loose-fill insulation shall comply with
CPSC 16 CFR, Part 1209 and CPSC 16 CFR, Part 1404. Each package of such
insulating material shall be clearly labeled in accordance with CPSC 16 CFR, Part
1209 and CPSC 16 CFR, Part 1404.
4B.19.7
Insulation and covering on pipe and tubing. Insulation and covering on pipe and
tubing shall have a flame spread index of not more than 25 and a smoke-developed
index of not more than 450.
SECTION 4B.20
PRESCRIPTIVE FIRE RESISTANCE
4B.20.1
4B.20.1.1
4B.20.1.2
4B.20.1.3
4B.20.1.4
4B.20.1.5
SBC 801
General. The provisions of this section contain prescriptive details of fireresistance-rated building elements. Examples of materials of construction and
assemblies listed in Table 4B.20.1(1) for structural parts, Table 4B.20.1(2) for
walls and partitions and Table 4B.20.1(3) for floor and roof systems shall be
assumed to have the fire-resistance ratings prescribed therein. These tables should
be extended to include the materials and assemblies available locally in the
Kingdom of Saudi Arabia. Where materials that change the capacity for heat
dissipation are incorporated into a fire-resistance-rated assembly, fire test results
or other substantiating data shall be made available to the building official to show
that the required fire-resistance-rating time period is not reduced.
Thickness of protective coverings. The thickness of fire-resistant materials
required for protection of structural members shall be not less than set forth in
Table 4B.20.1(1), except as modified in this section. The figures shown shall be
the net thickness of the protecting materials and shall not include any hollow space
in back of the protection.
Unit masonry protection of steel columns. Where required, metal ties shall be
embedded in transverse joints of unit masonry for protection of steel columns.
Such ties shall be as set forth in Table 4B.20.1(1) or be equivalent thereto.
Reinforcement for cast-in-place concrete protection for steel columns. Cast-inplace concrete protection for steel columns shall be reinforced at the edges of such
members with wire ties of not less than 5 mm in diameter wound spirally around
the columns on a pitch of not more than 200 mm or by equivalent reinforcement.
Plaster application. The finish coat is not required for plaster protective coatings
where they comply with the design mix and thickness requirements of Tables
4B.20.1(1), 4B.20.1(2) and 4B.20.1(3).
Bonded prestressed concrete tendons. For members having a single tendon or
more than one tendon installed with equal concrete cover measured from the
nearest surface, the cover shall not be less than that set forth in Table 4B.20.1(1).
For members having multiple tendons installed with variable concrete cover, the
average tendon cover shall not be less than that set forth in Table 4B.20.1(1),
provided:
1. The clearance from each tendon to the nearest exposed surface is used to
determine the average cover.
2. In no case can the clear cover for individual tendons be less than one-half of
that set forth in Table 4B.20.1(1). A minimum cover of 20 mm for slabs and 25
mm for beams is required for any aggregate concrete.
3. For the purpose of establishing a fire-resistance rating, tendons having a clear
covering less than that set forth in Table 4B.20.1(1) shall not contribute more
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TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
than 50 percent of the required ultimate moment capacity for members less
than 0.226 m2 in cross-sectional area and 65 percent for larger members. For
structural design purposes, however, tendons having a reduced cover are
assumed to be fully effective.
SECTION 4B.21
CALCULATED FIRE RESISTANCE
4B.21.1
4B.21.1.1
General. The provisions of this section contain procedures by which the fire
resistance of specific materials or combinations of materials is established by
calculations. These procedures apply only to the information contained in this
section and shall not be otherwise used. The calculated fire resistance of concrete,
concrete masonry and clay masonry assemblies shall be permitted in accordance
with ACI 216.1/TMS 0216.1. The calculated fire resistance of steel assemblies
shall be permitted in accordance with Chapter 5 of ASCE/SFPE 29.
Definitions. The following words and terms shall, for the purposes of this chapter
and as used elsewhere in these code requirements, have the meanings shown
herein.
CERAMIC FIBER BLANKET. A mineral wool insulation material made of
alumina-silica fibers and weighing 64 to 160 kg/m3.
CONCRETE, CARBONATE AGGREGATE. Concrete made with aggregates
consisting mainly of calcium or magnesium carbonate, such as limestone or
dolomite, and containing 40 percent or less quartz, chert, or flint.
CONCRETE, CELLULAR. A lightweight insulating concrete made by mixing a
preformed foam with Portland cement slurry and having a dry unit weight of
approximately 480 kg/m3.
CONCRETE, LIGHTWEIGHT AGGREGATE. Concrete made with
aggregates of expanded clay, shale, slag or slate or sintered fly ash or any natural
lightweight aggregate meeting ASTM C 330 and possessing equivalent fireresistance properties and weighing 1,360 to 1,840 kg/m3.
CONCRETE, PERLITE. A lightweight insulating concrete having a dry unit
weight of approximately 480 kg/m3 made with perlite concrete aggregate. Perlite
aggregate is produced from a volcanic rock which, when heated, expands to form a
glass-like material of cellular structure.
CONCRETE, SAND-LIGHTWEIGHT. Concrete made with a combination of
expanded clay, shale, slag, slate, sintered fly ash, or any natural lightweight
aggregate meeting ASTM C 330 and possessing equivalent fire-resistance
properties and natural sand. Its unit weight is generally between 1,680 and 1,920
kg/m3.
CONCRETE, SILICEOUS AGGREGATE. Concrete made with normal-weight
aggregates consisting mainly of silica or compounds other than calcium or
magnesium carbonate, which contains more than 40-percent quartz, chert, or flint.
CONCRETE, VERMICULITE. A lightweight insulating concrete made with
vermiculite concrete aggregate which is laminated micaceous material produced
SBC 801
2007
4/47
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
by expanding the ore at high temperatures. When added to a Portland cement
slurry the resulting concrete has a dry unit weight of approximately 480 kg/m3.
GLASS FIBERBOARD. Fibrous glass roof insulation consisting of inorganic
glass fibers formed into rigid boards using a binder. The board has a top surface
faced with asphalt and kraft reinforced with glass fiber.
MINERAL BOARD. A rigid felted thermal insulation board consisting of either
felted mineral fiber or cellular beads of expanded aggregate formed into flat
rectangular units.
TABLE 4B.20.1(1)
MINIMUM PROTECTION OF STRUCTURAL PARTS BASED ON TIME PERIODS FOR VARIOUS
NONCOMBUSTIBLE INSULATING MATERIALS
STRUCTURAL
PARTS TO BE
PROTECTED
ITEM
NUMBER
1-1.1
1-1.2
1-1.3
1-1.4
1-1.5
1-1.6
1-2.1
1-3.1
1. Steel columns
and all of
primary trusses
1-3.2
1-3.3
1-3.4
1-4.1
1-5.1
1-6.1
SBC 801
INSULATING MATERIAL USED
Carbonate, lightweight and sand-lightweight aggregate concrete,
members 150 × 150 mm or greater (not including sandstone, granite
and siliceous gravel)a
Carbonate, lightweight and sand-lightweight aggregate concrete,
members 200 × 200 mm or greater (not including sandstone, granite
and siliceous gravel)a
Carbonate, lightweight and sand-lightweight aggregate concrete,
members 305 × 305 mm or greater (not including sandstone, granite
and siliceous gravel)a
Siliceous aggregate concrete and concrete excluded in Item 1-1.1,
members 150 × 150 mm or greatera
Siliceous aggregate concrete and concrete excluded in Item 1-1.1,
members 200 × 200 mm or greatera
Siliceous aggregate concrete and concrete excluded in Item 1-1.1,
members 305 × 305 mm or greatera
Clay or shale brick with brick and mortar filla
100 mm hollow clay tile in two 50 mm layers; 13 mm mortar between
tile and column; 10 mm metal mesh 1.2 mm wire diameter in horizontal
joints; tile filla
50 mm hollow clay tile; 20 mm mortar between tile and column; 10
mm metal mesh 1.2 mm wire diameter in horizontal joints; limestone
concrete fill;a plastered with 20 mm gypsum plaster.
50 mm hollow clay tile with outside wire ties 2 mm diameter at each
course of tile or 10 mm metal mesh 1.2 mm diameter wire in horizontal
joints; limestone or trap-rock concrete fill1 extending 25 mm outside
column on all sides
50 mm hollow clay tile with outside wire ties 2 mm diameter at each
course of tile with or without concrete fill; 20 mm mortar between tile
and column
Cement plaster over metal lath wire tied to 20 mm cold-rolled vertical
channels with 1.3 mm (No. 18 B.W. gage) wire ties spaced 75 to 150
mm on center. Plaster mixed 1: 2 ½ by volume, cement to sand
Vermiculite concrete, 1:4 mix by volume over paperbacked wire fabric
lath wrapped directly around column with additional 50 mm ×50 mm
1.6 mm/1.6 mm (No. 16/16 B.W. gage) wire fabric placed 10 mm from
outer concrete surface. Wire fabric tied with 1.3 mm (No. 18 B.W.
gage) wire spaced 150 mm on center for inner layer and 50 mm on
center for outer layer
Perlite or vermiculite gypsum plaster over metal lath wrapped around
column and furred 32 mm from column flanges. Sheets lapped at ends
and tied at 150 mm intervals with 1.3 mm (No. 18 B.W. gage) tie wire.
Plaster pushed through to flanges
(Continued)
2007
MINIMUM THICKNESS OF
INSULATING MATERIAL
FOR THE FOLLOWING
FIRE-RESISTANCE
PERIODS (mm)
4
3
2
1
hour hour hour hour
65
50
40
25
50
40
25
25
40
25
25
25
75
50
40
25
65
50
25
25
50
25
25
25
95
—
—
60
100
—
—
—
75
—
—
—
—
—
75
—
—
—
—
50
—
—
65b
22
50
—
—
—
40
25
—
—
4/48
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
TABLE 4B.20.1(1) – continued
MINIMUM PROTECTION OF STRUCTURAL PARTS BASED ON TIME PERIODS FOR VARIOUS
NONCOMBUSTIBLE INSULATING MATERIALS
STRUCTURAL
PARTS TO BE
PROTECTED
ITEM
NUMBER
1-6.2
1-6.3
1-6.4
1-6.5
1-7.1
1-7.2
1. Steel columns
and all of
primary trusses
1-7.3
1-8.1
2-1.1
2. Webs or flanges
of steel beams
and girders
2-1.2
2-2.1
SBC 801
INSULATING MATERIAL USED
Perlite or vermiculite gypsum plaster over self-furring metal lath
wrapped directly around column, lapped 25 mm and tied at 150 mm
intervals with 1.3 mm (No. 18 B.W. gage) wire
Perlite or vermiculite gypsum plaster on metal lath applied to 20
mm cold-rolled channels spaced 610 mm apart vertically and
wrapped flatwise around column
Perlite or vermiculite gypsum plaster over two layers of 13 mm
plain full-length gypsum lath applied tight to column flanges. Lath
wrapped with 25 mm hexagonal mesh of No. 20 gage wire and tied
with doubled 0.9 mm diameter (No. 18 B.W. gage) wire ties spaced
585 mm on center. For three-coat work, the plaster mix for the
second coat shall not exceed 46 Kg of gypsum to 0.07 m3 of
aggregate for the 3-hour system
Perlite or vermiculate gypsum plaster over one layer of 13 mm plain
full-length gypsum lath applied tight to column flanges. Lath tied
with doubled 1.3 mm (No. 18 B.W.gage) wire ties spaced 585 mm
on center and scratch coat wrapped with 25 mm hexagonal mesh 0.9
mm (No. 20 B.W. gage) wire fabric. For three-coat work, the plaster
mix for the second coat shall not exceed 46 Kg of gypsum to 0.07
m3 of aggregate
Multiple layers of 13 mm gypsum wallboardc adhesivelyd secured to
column flanges and successive layers. Wallboard applied without
horizontal joints. Corner edges of each layer staggered. Wallboard
layer below outer layer secured to column with doubled 1.3 mm
(No. 18 B.W. gage) steel wire ties spaced 380 mm on center.
Exposed corners taped and treated
Three layers of 16 mm Type X gypsum wallboard.c First and second
layer held in place by 3 mm diameter by 35 mm long ring shank
nails with 8 mm diameter heads spaced 610 mm on center at
corners. Middle layer also secured with metal straps at mid-height
and 460 mm from each end, and by metal corner bead at each
corner held by the metal straps. Third layer attached to corner bead
with 25 mm long gypsum wallboard screws spaced 305 mm on
center
Three layers of 16 mm Type X gypsum wallboard,c each layer
screw attached to 40 mm steel studs 0.45 mm thick (No. 25 carbon
sheet steel gage) at each corner of column. Middle layer also
secured with 1.3 mm (No. 18 B.W. gage) double-strand steel wire
ties, 610 mm on center. Screws are No. 6 by 25 mm spaced 610 mm
on center for inner layer, No. 6 by 40 mm spaced 305 mm on center
for middle layer and No. 8 by 60 mm spaced 305 mm on center for
outer layer
Wood-fibered gypsum plaster mixed 1:1 by weight gypsum-to-sand
aggregate applied over metal lath. Lath lapped 25 mm and tied 150
mm on center at all end, edges and spacers with 1.3 mm (No. 18
B.W. gage) steel tie wires. Lath applied over 13 mm spacers made
of 20 mm furring channel with 50 mm legs bent around each corner.
Spacers located 25 mm from top and bottom of member and a
maximum of 1 m on center and wire tied with a single strand of 1.3
mm (No. 18 B.W. gage) steel tie wires. Corner bead tied to the lath
at 150 mm on center along each corner to provide plaster thickness
Carbonate, lightweight and sand-lightweight aggregate concrete
(not including sandstone, granite and siliceous gravel) with 75 mm
or finer metal mesh placed 25 mm from the finished surface
anchored to the top flange and providing not less than 55 square
millimeter of steel area per meter in each direction
Siliceous aggregate concrete and concrete excluded in Item 2-1.1
with 75 mm or finer metal mesh placed 25 mm from the finished
surface anchored to the top flange and providing not less than 55
square millimeter of steel area per meter in each direction
Cement plaster on metal lath attached to 20 mm cold-rolled
channels with 1.3 mm (No. 18 B.W. gage) wire ties spaced 75 to
150 mm on center. Plaster mixed 1: 2 ½ by volume, cement to sand
2007
MINIMUM THICKNESS OF
INSULATING MATERIAL
FOR THE FOLLOWING
FIRE-RESISTANCE
PERIODS (mm)
4
3
2
1
hour
hour
hour hour
45
35
25
—
40
—
—
—
65
50
—
—
—
50
—
—
—
—
50
25
—
—
50
—
—
50
—
—
—
—
40
—
50
40
25
25
65
50
40
25
—
—
65b
22
4/49
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
TABLE 4B.20.1(1) – continued
MINIMUM PROTECTION OF STRUCTURAL PARTS BASED ON TIME PERIODS FOR VARIOUS
NONCOMBUSTIBLE INSULATING MATERIALS
STRUCTURAL
PARTS TO BE
PROTECTED
ITEM
NUMBER
2-3.1
2-4.1
2. Webs or flanges
of steel beams
and girders
2-4.2
3. Bonded
pretensioned
reinforcement
in prestressed
concretee
3-1.1
4. Bonded or
unbonded posttensioned
tendons in
prestressed
concretee,i
SBC 801
4-1.1
4-1.2
INSULATING MATERIAL USED
Vermiculite gypsum plaster on a metal lath cage, wire tied to 4.2 mm
diameter (No. 8 B.W. gage) steel wire hangers wrapped around beam
and spaced 405 mm on center. Metal lath ties spaced approximately
125 mm on center at cage sides and bottom
Two layers of 16 mm Type X gypsum wallboardc are attached to Ushaped brackets spaced 610 mm on center. 0.45 mm thick (No. 25
carbon sheet steel gage) 40 mm deep by 25 mm galvanized steel
runner channels are first installed parallel to and on each side of the
top beam flange to provide a 13 mm clearance to the flange. The
channel runners are attached to steel deck or concrete floor
construction with approved fasteners spaced 305 mm on center. Ushaped brackets are formed from members identical to the channel
runners. At the bent portion of the U-shaped bracket, the flanges of
the channel are cut out so that 40 mm deep corner channels can be
inserted without attachment parallel to each side of the lower flange.
As an alternate, 500 mm thick (No. 24 carbon sheet steel gage) 25
mm × 50 mm runner and corner angles may be used in lieu of
channels, and the web cutouts in the U-shaped brackets may be
omitted. Each angle is attached to the bracket with 13 mm-long No. 8
self-drilling screws. The vertical legs of the U-shaped bracket are
attached to the runners with one 13 mm long No. 8 self-drilling
screw. The completed steel framing provides a 55 mm and 40 mm
space between the inner layer of wallboard and the sides and bottom
of the steel beam, respectively. The inner layer of wallboard is
attached to the top runners and bottom corner channels or corner
angles with 32 mm-long No. 6 self-drilling screws spaced 405 mm
on center. The outer layer of wallboard is applied with 45 mm-long
No. 6 self-drilling screws spaced 200 mm on center. The bottom
corners are reinforced with metal corner beads
Three layers of 16 mm Type X gypsum wallboardc attached to a steel
suspension system as described immediately above utilizing the 0.45
mm thick (No. 25 carbon sheet steel gage) 25 mm × 50 mm lower
corner angles. The framing is located so that a 55 mm and 50 mm
space is provided between the inner layer of wallboard and the sides
and bottom of the beam, respectively. The first two layers of
wallboard are attached as described immediately above. A layer of
0.9 mm thick (No. 20 B.W. gage) 25 mm hexagonal galvanized wire
mesh is applied under the soffit of the middle layer and up the sides
approximately50 mm. The mesh is held in position with the No. 6 40
mm-long screws installed in the vertical leg of the bottom corner
angles. The outer layer of wallboard is attached with No. 6 60 mmlong screws spaced 200 mm on center. One screw is also installed at
the mid-depth of the bracket in each layer. Bottom corners are
finished as described above
Carbonate, lightweight, sand-lightweight and siliceousf aggregate
concrete
Beams or girders
Solid slabsh
Carbonate, lightweight, sand-lightweight and siliceousf aggregate
concrete unrestrained members:
Solid slabsh
Beams and girdersj
200 mm wide
greater than 305 mm wide
Carbonate, lightweight, sand-lightweight and siliceous aggregate
Restrained members:k
Solid slabsh
Beams and girdersj
200 mm wide
greater than 300 mm wide
(Continued)
2007
MINIMUM THICKNESS OF
INSULATING MATERIAL
FOR THE FOLLOWING
FIRE-RESISTANCE
PERIODS (mm)
4
3
2
1
hour hour hour hour
—
22
—
—
—
—
32
—
—
50
—
—
100g
75g
65
40
—
50
40
25
—
50
40
—
75
115
65
65
50
45
40
32
25
20
—
65
50
50
45
45
40
—
—
4/50
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
TABLE 4B.20.1(1) – continued
MINIMUM PROTECTION OF STRUCTURAL PARTS BASED ON TIME PERIODS FOR VARIOUS
NONCOMBUSTIBLE INSULATING MATERIALS
STRUCTURAL
PARTS TO BE
PROTECTED
5. Reinforcing
steel in
reinforced
concrete
columns,
beams, girders
and trusses
6. Reinforcing
steel in
reinforced
concrete joistsl
7. Reinforcing and
tie rods in floor
and roof slabsl
a.
b.
c.
d.
e.
f.
g.
h.
i.
j.
k.
l.
ITEM
NUMBER
INSULATING MATERIAL USED
MINIMUM THICKNESS OF
INSULATING MATERIAL
FOR THE FOLLOWING
FIRE-RESISTANCE
PERIODS (mm)
4
3
2
1
hour hour hour hour
Carbonate, lightweight and sand-lightweight aggregate concrete,
members 300 mm or larger, square or round. (Size limit does not
apply to beams and girders monolithic with floors)
40
40
40
40
Siliceous aggregate concrete, members 300mm or larger, square or
round. (Size limit does not apply to beams and girders monolithic
with floors)
50
40
40
40
6-1.1
Carbonate, lightweight and sand-lightweight aggregate concrete.
32
32
25
20
6-1.2
Siliceous aggregate concrete
45
40
25
20
7-1.1
Carbonate, lightweight and sand-lightweight aggregate concrete.
25
25
20
20
7-1.2
Siliceous aggregate concrete
32
25
25
20
5-1.1
Reentrant parts of protected members to be filled solidly.
Two layers of equal thickness with a 20 mm airspace in between.
For all of the construction with gypsum wallboard described in Table 4B.20.1(1), gypsum base for veneer plaster of the same size,
thickness and core type shall be permitted to be substituted for gypsum wallboard, provided attachment is identical to that specified
for the wallboard and the joints on the face layer are reinforced, and the entire surface is covered with a minimum of 1.6 mm gypsum
veneer plaster.
An approved adhesive qualified under ASTM E 119.
Where lightweight or sand-lightweight concrete having an oven-dry weight of 1,760 kilogram per cubic meter or less is used, the
tabulated minimum cover shall be permitted to be reduced 25 percent, except that in no case shall the cover be less than 20 mm in
slabs or 40 mm in beams or girders.
For solid slabs of siliceous aggregate concrete, increase tendon cover 20 percent.
Adequate provisions against spalling shall be provided by U-shaped or hooped stirrups spaced not to exceed the depth of the member
with a clear cover of 25 mm.
Prestressed slabs shall have a thickness not less than that required in Table 4B.20.1(3) for the respective fire resistance time period.
Fire coverage and end anchorages shall be as follows: Cover to the prestressing steel at the anchor shall be 13 mm greater than that
required away from the anchor. Minimum cover to steel-bearing plate shall be 25 mm in beams and 20 mm in slabs.
For beam widths between 200 mm and 305 mm, cover thickness shall be permitted to be determined by interpolation.
Interior spans of continuous slabs, beams and girders shall be permitted to be considered restrained.
For use with concrete slabs having a comparable fire endurance where members are framed into the structure in such a manner as to
provide equivalent performance to that of monolithic concrete construction.
SBC 801
2007
4/51
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
TABLE 4B.20.1(2)
RATED FIRE-RESISTANCE PERIODS FOR VARIOUS WALLS AND PARTITIONSa,o,p
MATERIAL
ITEM
NUMBER
1-1.1
1-1.2
1-1.3
1. Brick of clay or
shale
1-2.1
2. Combination of
clay brick and
load-bearing
hollow clay tile
3. Concrete
masonry units
4. Solid concreteh, i
2-1.1
2-1.2
3-1.1f,g
3-1.2f,g
3-1.3f
3-1.4f,g
4-1.1
5-1.1
5-1.2
5. Glazed or
unglazed facing
tile, nonloadbearing
5-1.3
5-1.4
5-1.5
5-1.6
5-1.7
5-1.8
6-1.1
6. Solid gypsum
plaster
6-1.2
SBC 801
CONSTRUCTION
Solid brick of clay or shalec
Hollow brick, not filled.
Hollow brick unit wall, grout or filled with perlite,
vermiculite or expanded shale aggregate.
100 mm nominal thick units at least 75 percent solid
backed with a hat-shaped metal furring channel 20
mm thick formed from 500 mm sheet metal attached
to the brick wall on 610 mm centers with approved
fasteners, and 13 mm Type X gypsum wallboard
attached to the metal furring strips with 25 mm-long
Type S screws spaced 200 mm on center
100 mm solid brick and 100 mm tile (at least 40
percent solid)
100 mm solid brick and 200 mm tile (at least 40
percent solid)
Expanded slag or pumice
Expanded clay, shale or slate
Limestone, cinders or air-cooled slag
Calcareous or siliceous gravel
Siliceous aggregate concrete
Carbonate aggregate concrete
Sand-lightweight concrete
Lightweight concrete
One 50 mm unit cored 15 percent maximum and
one 100 mm unit cored 25 percent maximum with
20 mm mortar-filled collar joint. Unit positions
reversed in alternate courses
One 50 mm unit cored 15 percent maximum and
one 100 mm unit cored 40 percent maximum with
20 mm mortar-filled collar joint. Unit positions side
with 20 mm gypsum plaster. Two wythes tied
together every fourth course with 0.8 mm (No. 22
gage) corrugated metal ties
One unit with three cells in wall thickness, cored 29
percent maximum
One 50 mm unit cored 22 percent maximum and
one 100 mm unit cored 41 percent maximum with 6
mm mortar-filled collar joint. Two wythes tied
together every third course with 0.8 mm (No. 22
galvanized sheet steel gage) corrugated metal ties
One 100 mm unit cored 25 percent maximum with
20 mm gypsum plaster on one side
One 100 mm unit with two cells in wall thickness,
cored 22 percent maximum
One 100 mm unit cored 30 percent maximum with
20 mm vermiculite gypsum plaster on one side
One 100 mm unit cored 39 percent maximum with
20 mm gypsum plaster on one side
20 mm by 1.4 mm (No. 16 carbon sheet steel gage)
vertical cold-rolled channels, 405 mm on center
with 1.2 kilogram flat metal lath applied to one face
and tied with 1.3 mm (No. 18 B.W. Gage) wire at
150 mm spacing. Gypsum plaster each side mixed
1:2 by weight, gypsum to sand aggregate
20 mm by 1.4 mm (No. 16 carbon sheet steel gage)
cold-rolled channels 405 mm on center with metal
lath applied to one face and tied with 1.3 mm (No.
18 B.W. gage) wire at 150 mm spacing. Perlite or
vermiculite gypsum plaster each side. For three-coat
work, the plaster mix for the second coat shall not
exceed 46 kilograms of gypsum to 0.07 m3 of
aggregate for the 1-hour system
(Continued)
2007
MINIMUM FINISHED
THICKNESS FACE-TO-FACEb
(mm)
4
3
2
1
hour
hour
hour
hour
150
125
95
70
125
110
85
60
170
—
—
140
—
110
125d
75
—
200
—
—
300
—
—
—
120
130
150
160
180
170
135
130
100
110
125
135
160
145
115
110
80
90
100
105
125
115
95
90
55
65
70
70
90
80
70
65
—
160
—
—
—
170
—
—
—
—
150
—
—
—
150
—
—
—
120
—
—
—
—
100
—
—
115
—
—
—
—
115
—
—
—
50d
65d
50d
4/52
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
TABLE 4B.20.1(2) – continued
RATED FIRE-RESISTANCE PERIODS FOR VARIOUS WALLS AND PARTITIONSa,o,p
MATERIAL
ITEM
NUMBER
6-1.3
6-2.1
6. Solid gypsum
plaster
6-2.2
6-2.3
7. Solid perlite
and portland
cement
7-1.1
8. Solid neat wood
fibered gypsum
plaster
8-1.1
9. Solid wallboard
partition
9-1.1
10-1.1
10. Hollow
(studless)
gypsum
wallboard
partition
10-1.2
11-1.1
11.
Noncombustible
studs—interior
partition with
plaster each side
11-1.2
11-1.3
SBC 801
CONSTRUCTION
20 mm by 1.4 mm (No. 16 carbon sheet steel gage)
vertical cold-rolled channels, 400 mm on center
with 10 mm gypsum lath applied to one face and
attached with sheet metal clips. Gypsum plaster
each side mixed 1:2 by weight, gypsum to sand
aggregate
Studless with 13 mm full-length plain gypsum lath
and gypsum plaster each side. Plaster mixed 1:1 for
scratch coat and 1:2 for brown coat, by weight,
gypsum to sand aggregate
Studless with 13 mm full-length plain gypsum lath
and perlite or vermiculite gypsum plaster each side
Studless partition with 10 mm rib metal lath
installed vertically adjacent edges tied 150 mm on
center with 1.3 mm (No. 18 gage) wire ties, gypsum
plaster each side mixed 1:2 by weight, gypsum to
sand aggregate
Perlite mixed in the ratio of 0.08 cubic meters to 46
kilograms of portland cement and machine applied
to stud side of 40 mm mesh by 1.5-mm (No. 17
B.W. gage) paper-backed woven wire fabric lath
wire-tied to 100 mm-deep steel trussed wirej studs
405 mm on center. Wire ties of 1.3 mm (No. 18
B.W. gage) galvanized steel wire 150 mm on center
vertically
20 mm by 1.4 mm (No. 16 carbon sheet steel gage)
cold-rolled channels, 305 mm on center with 1.2
kilogram flat metal lath applied to one face and tied
1.3 mm (No. 18 B.W. gage) wire at 150 mm
spacing. Neat gypsum plaster applied each side
One full-length layer 13 mm Type X gypsum
wallboarde laminated to each side of 25 mm fulllength V-edge gypsum coreboard with approved
laminating compound. Vertical joints of face layer
and coreboard staggered at least 75 mm
One full-length layer of 16 mm Type X gypsum
wallboarde attached to both sides of wood or metal
top and bottom runners laminated to each side of 25
mm× 150 mm full-length gypsum coreboard ribs
spaced 610 mm on center with approved laminating
compound. Ribs centered at vertical joints of face
plies and joints staggered 610 mm in opposing
faces. Ribs may be recessed 150 mm from the top
and bottom
25 mm regular gypsum V-edge full-length backing
board attached to both sides of wood or metal top
and bottom runners with nails or 40 mm drywall
screws at 610 mm on center. Minimum width of
runners 40 mm. Face layer of 13 mm regular fulllength gypsum wallboard laminated to outer faces of
backing board with approved laminating compound
85 mm × 1.1 mm (No. 18 carbon sheet steel gage)
steel studs spaced 610 mm on center. 16 mm
gypsum plaster on metal lath each side mixed 1:2 by
weight, gypsum to sand aggregate
85 mm × 1.4 mm (No. 16 carbon sheet steel gage)
approved nailablek studs spaced 610 mm on center.
16 mm neat gypsum wood-fibered plaster each side
over 10 mm rib metal lath nailed to studs with 6d
common nails, 200 mm on center. Nails driven 32
mm and bent over
100 mm × 1.1 mm (No. 18 carbon sheet steel gage)
channel-shaped steel studs at 405 mm on center. On
each side approved resilient clips pressed onto stud
flange at 405 mm vertical spacing, 6 mm pencil rods
snapped into or wire tied onto outer loop of clips,
metal lath wire-tied to pencil rods at 150 mm
intervals, 50 mm perlite gypsum plaster, each side
(Continued)
2007
MINIMUM FINISHED
THICKNESS FACE-TO-FACEb
(mm)
4
3
2
1
hour
hour
hour
hour
—
—
—
50d
—
—
—
50d
—
—
65d
50d
—
—
—
50d
—
—
80d
—
—
—
50d
—
—
—
50d
—
—
—
—
60d
—
—
115d
—
—
—
—
120d
—
—
140
—
—
195d
—
—
4/53
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
TABLE 4B.20.1(2) – continued
RATED FIRE-RESISTANCE PERIODS FOR VARIOUS WALLS AND PARTITIONSa,o,p
MATERIAL
ITEM
NUMBER
11-1.4
12-1.1l, m
12. Wood studs
interior
partition with
plaster each
side
12-1.2l
12-1.3l
12-1.4l
13-1.1
13. Noncombustible
studs—interior
partition with
gypsum
wallboard each
side
13-1.2
13-1.3
14.Wood studs—
interior partition
with gypsum
Wallboard each
side
SBC 801
14-1.1h, m
CONSTRUCTION
65 mm × 1.1 mm (No. 18 carbon sheet steel gage)
steel studs spaced 405 mm on center. Wood fibered
gypsum plaster mixed 1:1 by weight gypsum to
sand aggregate applied on 0.34-kilograms metal lath
wire tied to studs, each side. 20 mm plaster applied
over each face, including finish coat
50 mm × 100 mm wood studs 405 mm on center
with 16 mm gypsum plaster on metal lath. Lath
attached by 4d common nails bent over or No. 14
gage by 32 mm by 20 mm crown width staples
spaced 150 mm on center. Plaster mixed 1:1 1½ for
scratch coat and 1:3 for brown coat, by weight,
gypsum to sand aggregate
50 × 100 mm wood studs 405 mm on center with
metal lath and 22 mm neat wood-fibered gypsum
plaster each side. Lath attached by 6d common
nails, 180 mm on center. Nails driven 32 mm and
bent over
50 mm × 100 mm wood studs 405 mm on center
with 10 mm perforated or plain gypsum lath and 13
mm gypsum plaster each side. Lath nailed with 30
mm by No. 13 gage by 8 mm head plasterboard
blued nails, 100 mm on center. Plaster mixed 1:2 by
weight, gypsum to sand aggregate
50 mm × 100 mm wood studs 405 mm on center
with 10 mm Type X gypsum lath and 13 mm
gypsum plaster each side. Lath nailed with 30 mm
by No. 13 gage by 8 mm head plasterboard blued
nails, 125 mm on center. Plaster mixed 1:2 by
weight, gypsum to sand aggregate
0.45 mm (No. 25 carbon sheet steel gage) channelshaped studs 610 mm on center with one full-length
layer of 16 mm Type X gypsum wallboarde applied
vertically attached with 25 mm long No. 6 drywall
screws to each stud. Screws are 200 mm on center
around the perimeter and 305 mm on center on the
intermediate stud. The wallboard may be applied
horizontally when attached to 90 mm studs and the
horizontal joints are staggered with those on the
opposite side. Screws for the horizontal application
shall be 200 mm on center at vertical edges and 305
mm on center at intermediate studs
0.45 mm (No. 25 carbon sheet steel gage) channelshaped studs 635 mm on center with two full-length
layers of 13 mm Type X gypsum wallboarde applied
vertically each side. First layer attached with 25
mm-long, No. 6 drywall screws, 200 mm on center
around the perimeter and 305 mm on center on the
intermediate stud. Second layer applied with vertical
joints offset one stud space from first layer using 40
mm long, No. 6 drywall screws spaced 230 mm on
center along vertical joints, 305 mm on center at
intermediate studs and 640 mm on center along top
and bottom runners
1.4 mm (No. 16 carbon sheet steel gage) approved
nailable metal studse 610 mm on center with fulllength 16 mm Type X gypsum wallboarde applied
vertically and nailed 180 mm on center with 6d
cement-coated common nails. Approved metal
fastener grips used with nails at vertical butt joints
along studs
50 mm × 100 mm wood studs 405 mm on center
with two layers of 10 mm regular gypsum
wallboarde each side, 4d coolern or wallboardn nails
at 200 mm on center first layer, 5d coolern or
wallboardn nails at 200 mm on center second layer
with laminating compound between layers, joints
staggered. First layer applied full length vertically,
second layer applied horizontally or vertically
(Continued)
2007
MINIMUM FINISHED
THICKNESS FACE-TO-FACEb
(mm)
4
3
2
1
hour
hour
hour
hour
—
—
110d
—
—
—
—
130
—
—
140d
—
—
—
—
135
—
—
—
135
—
—
—
75d
—
—
90d
—
—
—
—
125
—
—
—
125
4/54
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
TABLE 4B.20.1(2) – continued
RATED FIRE-RESISTANCE PERIODS FOR VARIOUS WALLS AND PARTITIONSa,o,p
MATERIAL
ITEM
NUMBER
14-1.2l, m
14-1.3l, m
14-1.4l
14.Wood studs—
interior partition
with gypsum
Wallboard each
side
14-1.5l, m
14-1.6l
15-1.1l, m
15-1.2l, m
15. Exterior or
interior walls
15-1.3l, m
15-1.4
SBC 801
CONSTRUCTION
50 mm × 100 mm wood studs 405 mm on center
with two layers 13 mm regular gypsum wallboarde
applied vertically or horizontally each sidek, joints
staggered. Nail base layer with 5d coolern or
wallboardn nails at 200 mm on center face layer
with 8d coolern or wallboardn nails at 200 mm on
center
50 mm × 100 mm wood studs 610 mm on center
with 16 mm Type X gypsum wallboarde applied
vertically or horizontally nailed with 6d coolern or
wallboardn nails at 180 mm on center with end
joints on nailing members. Stagger joints each side
50 mm × 100 mm fire-retardant-treated wood studs
spaced 610 mm on center with one layer of 16 mm
Type X gypsum wallboarde applied with face paper
grain (long dimension) parallel to studs. Wallboard
attached with 6d coolern or wallboardn nails at 180
mm on center
50 mm × 100 mm wood studs 405 mm on center
with two layers 16 mm Type X gypsum wallboarde
each side. Base layers applied vertically and nailed
with 6d coolern or wallboardn nails at 230 mm on
center. Face layer applied vertically or horizontally
and nailed with 8d coolern or wallboardn nails at 180
mm on center. For nail-adhesive application, base
layers are nailed 150 mm on center. Face layers
applied with coating of approved wallboard
adhesive and nailed 305 mm on center
50 mm × 75 mm fire-retardant-treated wood studs
spaced 610 mm on center with one layer of 16 mm
Type X gypsum wallboarde applied with face paper
grain (long dimension) at right angles to studs.
Wallboard attached with 6d cement-coated box nails
spaced 180 mm on center
Exterior surface with 20 mm drop siding over 13
mm gypsum sheathing on 50 mm × 100 mm wood
studs at 405 mm on center, interior surface
treatment as required for 1-hour-rated exterior or
interior 50 mm × 100 mm wood stud partitions.
Gypsum sheathing nailed with 45 mm by No. 11
gage by 11 mm head galvanized nails at 200 mm on
center. Siding nailed with 7d galvanized smooth box
nails
50 mm × 100 mm wood studs 405 mm on center
with metal lath and 20 mm cement plaster on each
side. Lath attached with 6d common nails 180 mm
on center driven to 25 mm minimum penetration
and bent over. Plaster mix 1:4 for scratch coat and
1:5 for brown coat, by volume, cement to sand
50 mm × 100 mm wood studs 405 mm on center
with 22 mm cement plaster (measured from the face
of studs) on the exterior surface with interior surface
treatment as required for interior wood stud
partitions in this table. Plaster mix 1:4 for scratch
coat and 1:5 for brown coat, by volume, cement to
sand
90 mm No. 16 gage noncombustible studs 405 mm
on center with 22 mm cement plaster (measured
from the face of the studs) on the exterior surface
with interior surface treatment as required for
interior, nonbearing, noncombustible stud partitions
in this table. Plaster mix 1:4 for scratch coat and 1:5
for brown coat, by volume, cement to sand
(Continued)
2007
MINIMUM FINISHED
THICKNESS FACE-TO-FACEb
(mm)
4
3
2
1
hour
hour
hour
hour
—
—
—
140
—
—
—
120
—
—
—
120d
—
—
150
—
—
—
—
90d
—
—
—
Varies
—
—
—
135
—
—
—
Varies
—
—
—
Variesd
4/55
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
TABLE 4B.20.1(2) – continued
RATED FIRE-RESISTANCE PERIODS FOR VARIOUS WALLS AND PARTITIONSa,o,p
MATERIAL
ITEM
NUMBER
15-1.5m
15. Exterior or
interior walls
15-1.6l, m
15-1.7l, m
SBC 801
CONSTRUCTION
60 mm × 95 mm clay face brick with cored holes
over 13 mm gypsum sheathing on exterior surface
of 50 mm × 100 mm wood studs at 405 mm on
center and two layers 16 mm Type X gypsum
wallboarde on interior surface. Sheathing placed
horizontally or vertically with vertical joints over
studs nailed 150 mm on center with 45 mm × No. 11
gage by 11 mm head galvanized nails. Inner layer of
wallboard placed horizontally or vertically and
nailed 200 mm on center with 6d coolern or
wallboardn nails. Outer layer of wallboard placed
horizontally or vertically and nailed 200 mm on
center with 8d coolern or wallboardn nails. All joints
staggered with vertical joints over studs. Outer layer
joints taped and finished with compound. Nail heads
covered with joint compound. 0.9 mm (No. 20
galvanized sheet gage) corrugated galvanized steel
wall ties 20 mm by 170 mm attached to each stud
with two 8d coolern or wallboardn nails every sixth
course of bricks
50 mm × 150 mm fire-retardant-treated wood studs
405 mm on center. Interior face has two layers of 16
mm Type X gypsum with the base layer placed
vertically and attached with 6d box nails 305 mm on
center. The face layer is placed horizontally and
attached with 8d box nails 200 mm on center at
joints and 305 mm on center elsewhere. The exterior
face has a base layer of 16 mm Type X gypsum
sheathing placed vertically with 6d box nails 200
mm on center at joints and 305 mm on center
elsewhere. An approved building paper is next
applied, followed by self-furred exterior lath
attached with 65 mm, No. 12 gage galvanized
roofing nails with a 10 mm diameter head and
spaced 150 mm on center along each stud. Cement
plaster consisting of a 13 mm brown coat is then
applied. The scratch coat is mixed in the proportion
of 1:3 by weight, cement to sand with 4.5 kilograms
of hydrated lime and 1.5 kilograms of approved
additives or admixtures per sack of cement. The
brown coat is mixed in the proportion of 1:4 by
weight, cement to sand with the same amounts of
hydrated lime and approved additives or admixtures
used in the scratch coat
50 mm × 150 mm wood studs 405 mm on center.
The exterior face has a layer of 16 mm Type X
gypsum sheathing placed vertically with 6d box
nails 200 mm on center at joints and 305 mm on
center elsewhere. An approved building paper is
next applied, followed by 25 mm by No. 18 gage
self-furred exterior lath attached with 8d by 65 mm
long galvanized roofing nails spaced 150 mm on
center along each stud. Cement plaster consisting of
a 13 mm scratch coat, a bonding agent and a 13 mm
brown coat and a finish coat is then applied. The
scratch coat is mixed in the proportion of 1:3 by
weight, cement to sand with 4.5 kilograms of
hydrated lime and 1.5 kilograms of approved
additives or admixtures per sack of cement. The
brown coat is mixed in the proportion of 1:4 by
weight, cement to sand with the same amounts of
hydrated lime and approved additives or admixtures
used in the scratch coat. The interior is covered with
10 mm gypsum lath with 25 mm hexagonal mesh of
0.9 mm (No. 20 B.W. gage) woven wire lath furred
out 8 mm and 25 mm perlite or vermiculite gypsum
plaster. Lath nailed with 30 mm by No. 13 gage by
(Continued)
2007
MINIMUM FINISHED
THICKNESS FACE-TO-FACEb
(mm)
4
3
2
1
hour
hour
hour
hour
—
—
250
—
—
—
210
—
—
—
215
—
4/56
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
TABLE 4B.20.1(2) – continued
RATED FIRE-RESISTANCE PERIODS FOR VARIOUS WALLS AND PARTITIONSa,o,p
MATERIAL
ITEM
NUMBER
15-1.8l,m
15. Exterior or
interior walls
15-1.9
15-1.10
SBC 801
CONSTRUCTION
8 mm head plasterboard glued nails spaced 125 mm
on center. Mesh attached by 45 mm by No. 12 gage
by 10 mm head nails with 10 mm furrings, spaced
200 mm on center. The plaster mix shall not exceed
46 kilograms of gypsum to 0.07 m3 of aggregate
50 mm × 150 mm wood studs 405 mm on center.
The exterior face has a layer of 16 mm Type X
gypsum sheathing placed vertically with 6d box
nails 200 mm on center at joints and 305 mm on
center elsewhere. An approved building paper is
next applied, followed by 40 mm by No. 17 gage
self-furred exterior lath attached with 8d by 65 mm
long galvanized roofing nails spaced 150 mm on
center along each stud. Cement plaster consisting of
a 13 mm scratch coat, and a 13 mm brown coat is
then applied. The plaster may be placed by machine.
The scratch coat is mixed in the proportion of 1:4 by
weight, plastic cement to sand. The brown coat is
mixed in the proportion of 1:5 by weight, plastic
cement to sand. The interior is covered with 10 mm
gypsum lath with 25 mm hexagonal mesh of No. 20
gage woven wire lath furred out 8 mm and 25 mm
perlite or vermiculite gypsum plaster. Lath nailed
with 30 mm by No. 13 gage by 8 mm head
plasterboard glued nails spaced 125 mm on center.
Mesh attached by 45 mm by No. 12 gage by 10 mm
head nails with 10 mm furrings, spaced 200 mm on
center. The plaster mix shall not exceed 46
kilograms of gypsum to 0.07 cubic meters of
aggregate
100 mm No. 18 gage, nonload-bearing metal studs,
405 mm on center, with 25 mm portland cement
lime plaster [measured from the back side of the
0.34-kilograms expanded metal lath] on the exterior
surface. Interior surface to be covered with 25 mm
of gypsum plaster on 0.34 kilograms expanded
metal lath proportioned by weight – 1:2 or scratch
coat, 1:3 for brown, gypsum to sand. Lath on one
side of the partition fastened to 6 mm diameter
pencil rods supported by No. 20 gage metal clips,
located 405 mm on center vertically, on each stud.
75 mm thick mineral fiber insulating batts friction
fitted between the studs
Steel studs 1.5 mm thick, 100 mm deep or 150 mm
at 405 mm or 610 mm centers, with 13 mm Glass
Fiber Reinforced Concrete (GFRC) on the exterior
surface. GFRC is attached with flex anchors at 610
mm on center, with 125 mm leg welded to studs
with two 13 mm-long flare-bevel welds, and 100
mm foot attached to the GFRC skin with 16 mm
thick GFRC bonding pads that extend 65 mm
beyond the flex anchor foot on both sides. Interior
surface to have two layers of 13 mm Type X
gypsum wallboarde The first layer of wallboard to
be attached with 25 mm-long Type S buglehead
screws spaced 610 mm on center and the second
layer is attached with 40 mm-long Type S screws
spaced at 305 mm on center. Cavity is to be filled
with 125 mm of 65 kg/m3 (nominal) mineral fiber
batts. GFRC has 40 mm returns packed with mineral
fiber and caulked on the exterior
(Continued)
2007
MINIMUM FINISHED
THICKNESS FACE-TO-FACEb
(mm)
4
3
2
1
hour
hour
hour
hour
—
—
215
—
—
—
165d
—
—
—
165
—
4/57
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
TABLE 4B.20.1(2) – continued
RATED FIRE-RESISTANCE PERIODS FOR VARIOUS WALLS AND PARTITIONSa,o,p
MATERIAL
ITEM
NUMBER
15-1.11
15-1.12q
15-1.13q
15. Exterior or
interior walls
15-1.14q
15-1.15q
15-1.16q
SBC 801
CONSTRUCTION
Steel studs 1.5 mm thick, 100 mm deep or 150 mm
at 405 mm or 610 mm centers, respectively, with 13
mm Glass Fiber Reinforced Concrete (GFRC) on
the exterior surface. GFRC is attached with flex
anchors at 610 mm on center, with 125 mm leg
welded to studs with two 13 mm-long flare-bevel
welds, and 100 mm foot attached to the GFRC skin
with 16 mm-thick GFRC bonding pads that extend
65 mm beyond the flex anchor foot on both sides.
Interior surface to have one layer of 16 mm Type X
gypsum wallboarde, attached with 32 mm-long Type
S buglehead screws spaced 305 mm on center.
Cavity is to be filled with 125 mm of 65 kg/m3
(nominal) mineral fiber batts. GFRC has 40 mm
returns packed with mineral fiber and caulked on the
exterior
50 mm × 150 mm wood studs at 405 mm with
double top plates, single bottom plate; interior and
exterior sides covered with 16 mm Type X gypsum
wallboard, 1.22 m wide, applied horizontally or
vertically with vertical joints over studs, and
fastened with 60 mm Type S drywall screws, spaced
305 mm on center. Cavity filled with 140 mm
mineral wool insulation
50 mm × 150 mm wood studs at 405 mm with
double top plates, single bottom plate; interior and
exterior sides covered with 16 mm Type X gypsum
wallboard, 1.22 m wide, applied horizontally or
vertically with vertical joints over studs, and
fastened with 60 mm Type S drywall screws, spaced
180 mm on center. Cavity to be filled with 140 mm
mineral wool insulation minimum 41 kg/m3
(nominal)
50 mm × 100 mm wood studs at 405 mm with
double top plates, single bottom plate; interior and
exterior sides covered with 16 mm Type X gypsum
wallboard and sheathing, respectively, 1.22 m wide,
applied horizontally or vertically with vertical joints
over studs, and fastened with 60 mm Type S drywall
screws, spaced 305 mm on center. Cavity to be
filled with 90 mm mineral wool insulation
50 mm × 100 mm wood studs at 405 mm with
double top plates, single bottom plate; interior sides
covered with 16 mm Type X gypsum wallboard,
1.22 m wide, applied horizontally unblocked, and
fastened with 60 mm Type S drywall screws, spaced
305 mm on center, wallboard joints covered with
paper tape and joint compound, fastener heads
covered with joint compound. Exterior covered with
10 mm wood structural panels (oriented strand
board), applied vertically, horizontal joints blocked
and fastened with 6d common nails (bright) – 305
mm on center in the field, 150 mm on center panel
edges. Cavity to be filled with 90 mm mineral wool
insulation. Rating established for exposure from
interior side only
50 mm × 150 mm wood studs at 405 mm centers
with double top plates, single bottom plate; interior
side covered with 16 mm Type X gypsum
wallboard, 1.22 m wide, applied horizontally or
vertically with vertical joints over studs and
fastened with 60 mm Type S drywall screws, spaced
305 mm on center, exterior side covered with 11
mm wallboard joints covered with paper tape and
joint compound, fastener heads covered with joint
(Continued)
2007
MINIMUM FINISHED
THICKNESS FACE-TO-FACEb
(mm)
4
3
2
1
hour
hour
hour
hour
—
—
—
155
—
—
—
170
—
—
—
170
—
—
—
120
—
—
—
115
—
—
—
165
4/58
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
TABLE 4B.20.1(2) – continued
RATED FIRE-RESISTANCE PERIODS FOR VARIOUS WALLS AND PARTITIONSa,o,p
MATERIAL
ITEM
NUMBER
15-1.17q
16. Exterior walls
rated for fire
resistance from
the inside only
in accordance
with Section
4B.4.5.
a.
b.
c.
d.
e.
f.
g.
h.
i.
j.
k.
l.
m.
n.
o.
p.
q.
16-1.1q
CONSTRUCTION
compound; wood structural panels (oriented strand
board) fastened with 6d common nails (bright)
spaced 305 mm on center in the field and 150 mm
on center along the panel edges. Cavity to be filled
with 140 mm mineral wool insulation. Rating
established from the gypsum-covered side only
50 mm × 150 mm wood studs at 610 mm centers
with double top plates, single bottom plate; interior
and exterior side covered with two layers of 16 mm
Type X gypsum wallboard, 1.22 m wide, applied
horizontally with vertical joints over studs. Base
layer fastened with 60 mm. Type S drywall screws,
spaced 610 mm on center, and face layer fastened
with Type S drywall screws, spaced 200 mm on
center, wallboard joints covered with paper tape and
joint compound, fastened heads covered with joint
compound. Cavity to be filled with 140 mm mineral
wool insulation
50 mm × 100 mm wood studs at 405 mm centers
with double top plates, single bottom plate; interior
side covered with 16 mm Type X gypsum
wallboard, 1.22 m wide, applied horizontally
unblocked, and fastened with 60 mm. Type S
drywall screws, spaced 305 mm on center,
wallboard joints covered with paper tape and joint
compound, fastener heads covered with joint
compound. Exterior covered with 10 mm wood
structural panels (oriented strand board), applied
vertically, horizontal joints blocked and fastened
with 6d common nails (bright) – 305 mm on center
in the field, and 150 mm on center panel edges.
Cavity to be filled with 90 mm mineral wool
insulation. Rating established for exposure from
interior side only
MINIMUM FINISHED
THICKNESS FACE-TO-FACEb
(mm)
4
3
2
1
hour
hour
hour
hour
—
—
195
—
—
—
—
115
Staples with equivalent holding power and penetration shall be permitted to be used as alternate fasteners to nails for attachment to wood
framing.
Thickness shown for brick and clay tile are nominal thicknesses unless plastered, in which case thicknesses are net. Thickness shown for
concrete masonry and clay masonry is equivalent thickness defined in Section 4B.21.3.1 for concrete masonry and Section 4B.21.4.1.1 for
clay masonry. Where all cells are solid grouted or filled with silicone-treated perlite loose-fill insulation; vermiculite loose-fill insulation; or
expanded clay, shale or slate lightweight aggregate, the equivalent thickness shall be the thickness of the block or brick using specified
dimensions as defined in SBC 305. Equivalent thickness may also include the thickness of applied plaster and lath or gypsum wallboard,
where specified.
For units in which the net cross-sectional area of cored brick in any plane parallel to the surface containing the cores is at least 75 percent of
the gross cross-sectional area measured in the same plane.
Shall be used for nonbearing purposes only.
For all of the construction with gypsum wallboard described in this table, gypsum base for veneer plaster of the same size, thickness and core
type shall be permitted to be substituted for gypsum wallboard, provided attachment is identical to that specified for the wallboard, and the
joints on the face layer are reinforced and the entire surface is covered with a minimum of 1.6 mm gypsum veneer plaster.
The fire-resistance time period for concrete masonry units meeting the equivalent thicknesses required for a 2-hour fire-resistance rating in
Item 3, and having a thickness of not less than 195 mm is 4 hours when cores which are not grouted are filled with silicone-treated perlite
loose-fill insulation; vermiculite loose-fill insulation; or expanded clay, shale or slate lightweight aggregate, sand or slag having a maximum
particle size of 10 mm.
The fire-resistance rating of concrete masonry units composed of a combination of aggregate types or where plaster is applied directly to the
concrete masonry shall be determined in accordance with ACI 216.1/TMS 216. Lightweight aggregates shall have a maximum combined
density of 1,040 kilograms per cubic meter.
See also Note b. The equivalent thickness shall be permitted to include the thickness of cement plaster or 1.5 times the thickness of gypsum
plaster applied in accordance with the requirements of Chapter 10 of the SBC 201.
Concrete walls shall be reinforced with horizontal and vertical temperature reinforcement as required by SBC 304.
Studs are welded truss wire studs with 4.5 mm (No. 7 B.W. gage) flange wire and 4.5 mm (No. 7 B.W. gage) truss wires.
Nailable metal studs consist of two channel studs spot welded back to back with a crimped web forming a nailing groove.
Wood structural panels shall be permitted to be installed between the fire protection and the wood studs on either the interior or exterior side
of the wood frame assemblies in this table, provided the length of the fasteners used to attach the fire protection are increased by an amount
at least equal to the thickness of the wood structural panel.
The design stress of studs shall be reduced to 78 percent of allowable F’c with the maximum not greater than 78 percent of the calculated
stress with studs having a slenderness ratio le/d of 33.
For properties of cooler or wallboard nails, see ASTM C 514, ASTM C 547 or ASTM F 1667.
Generic fire-resistance ratings (those not designated as PROPRIETARY in the listing) in the GA 600 shall be accepted as if herein listed.
NCMA TEK 5-8, shall be permitted for the design of fire walls.
The design stress of studs shall be equal to a maximum of 100 percent of the allowable F’c calculated in accordance with Section 2306 of the
Saudi Building Code.
SBC 801
2007
4/59
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
TABLE 4B.20.1(3)
MINIMUM PROTECTION FOR FLOOR AND ROOF SYSTEMSa, q
FLOOR OR ROOF
CONSTRUCTION
1. Siliceous aggregate concrete
2. Carbonate aggregate
concrete
3. Sand-lightweight concrete
4. Lightweight concrete
ITEM
NUMBER
1-1.1
2-1.1
3-1.1
4-1.1
5-1.1
5. Reinforced concrete
5-2.1
6-1.1
6-2.1
6. Steel joists constructed with
a poured reinforced
concrete slab on metal lath
forms or steel form unitsd,e
6-3.1
6-4.1
SBC 801
CEILING CONSTRUCTION
Slab (no ceiling required). Minimum
cover over nonprestressed reinforcement
shall not be less than 20 mmb
Slab with suspended ceiling of
vermiculite gypsum plaster over metal
lath attached to 20 mm cold-rolled
channels spaced 305 mm on center.
Ceiling located 150 mm minimum below
joists
10 mm Type X gypsum wallboardc
attached to 0.45 mm (No. 25 carbon sheet
steel gage) by 22 mm deep by 65 mm hatshaped galvanized steel channels with 25
mm-long No. 6 screws. The channels are
spaced 610 mm on center, span 890 mm
and are supported along their length at
890 mm intervals by 0.8-millimeter (No.
21 galvanized sheet gage) galvanized steel
flat strap hangers having formed edges
that engage the lips of the channel. The
strap hangers are attached to the side of
the concrete joists with 4 mm by 32 mm
long
power-driven
fasteners.
The
wallboard is installed with the long
dimension perpendicular to the channels.
All end joints occur on channels and
supplementary channels are installed
parallel to the main channels, 305 mm
each side, at end joint occurrences. The
finished ceiling is located approximately
305 mm below the soffit of the floor slab
Gypsum plaster on metal lath attached to
the bottom cord with single 1.6 mm (No.
16 gage) or doubled 1.3 mm (No. 18
gage) wire ties spaced 150 mm on center.
Plaster mixed 1:2 for scratch coat, 1:3 for
brown coat, by weight, gypsum-to-sand
aggregate for 2-hour system. For 3-hour
system plaster is neat
Vermiculite gypsum plaster on metal lath
attached to the bottom chord with single
1.6 mm (No.16 gage) or doubled 1.3 mm
(No. 18 B.W. gage) wire ties 150 mm on
center
Cement plaster over metal lath attached to
the bottom chord of joists with single 1.6
mm (No.16 gage) or doubled 1.3 mm (No.
18 B.W. gage) wire ties spaced 150 mm
on center. Plaster mixed 1:2 for scratch
coat, 1:3 for brown coat for 1-hour system
and 1:1 for scratch coat, 1:1 ½ for brown
coat for 2-hour system, by weight, cement
to sand
Ceiling of 16 mm Type X wallboardc
attached to 22 mm deep by 65 mm by
0.5 mm (No. 25 carbon sheet steel gage)
hat-shaped furring channels 305 mm on
center with 25 mm long No. 6 wallboard
screws at 200 mm on center. Channels
wire tied to bottom chord of joists with
doubled 1.3 mm (No. 18 B.W. gage)
wire or suspended below joists on wire
hangersg
(Continued)
2007
THICKNESS OF
MINIMUM
FLOOR OR ROOF
THICKNESS OF
SLAB
CEILING
(mm)
(mm)
4
3
2
1
4
3
2
1
hour hour hour hour hour hour hour hour
180 160 125
90
—
—
—
—
170
145
115
80
—
—
—
—
135
130
115
110
95
90
70
65
—
—
—
—
—
—
—
—
75
50
—
—
25
20
—
—
—
—
65
—
—
—
16
—
—
—
65
60
—
—
20
16
—
50
—
—
—
16
—
—
—
—
—
50
—
—
—
16f
—
—
65
—
—
—
16
—
4/60
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
TABLE 4B.20.1(3) – continued
MINIMUM PROTECTION FOR FLOOR AND ROOF SYSTEMSa, q
FLOOR OR ROOF
CONSTRUCTION
6. Steel joists constructed with
a poured reinforced
concrete slab on metal lath
forms or steel form unitsd,e
7. Reinforced concrete slabs
and joists with hollow clay
tile fillers laid end to end in
rows 65 mm or more apart;
reinforcement placed
between rows and concrete
cast around and over tile.
8. Steel joists constructed with
a reinforced concrete slab
on top poured on a 13 mm
deep steel deck.e
ITEM
NUMBER
6-5.1
7-1.1
7-1.2
8-1.1
9. 75 mm deep cellular steel
deck with concrete slab on
top. Slab thickness
measured to top.
9-1.1
10. 40 mm-deep steel roof
deck on steel framing.
Insulation board, 480 kg/m3
density, composed of wood
fibers with cement binders
of thickness shown bonded
to deck with unified asphalt
adhesive. Covered with a
Class A or B roof covering.
10-1.1
11.40 mm-deep steel roof deck
on steel-framing wood fiber
insulation board, 280 kg/m3
density on top applied over
a 7 kilogram asphaltsaturated felt. Class A or B
roof covering.
11-1.1
SBC 801
CEILING CONSTRUCTION
Wood-fibered gypsum plaster mixed 1:1
by weight gypsum to sand aggregate
applied over metal lath. Lath tied 150
mm, on center to 20 mm channels spaced
345 mm on center. Channels secured to
joists at each intersection with two strands
of 1.3 mm (No. 18 B.W. gage) galvanized
wire
16 mm gypsum plaster on bottom of floor
or roof construction
None
Vermiculite gypsum plaster on metal lath
attached to 20 mm cold-rolled channels
with 1.3 mm (No. 18 B.W. gage) wire ties
spaced 150 mm on center
Suspended ceiling of vermiculite gypsum
plaster base coat and vermiculite
acoustical plaster on metal lath attached at
150 mm intervals to 20 mm cold-rolled
channels spaced 305 mm on center and
secured to 40 mm cold-rolled channels
spaced 915 mm on center with 1.6 mm
(No. 16 B.W. gage) wire. 40 mm channels
supported by 4.2 mm (No. 8 gage) wire
hangers at 915 mm on center. Beams
within envelope and with a 65 mm
airspace between beam soffit and lath
have a 4-hour rating
Ceiling of gypsum plaster on metal lath.
Lath attached to 20 mm furring channels
with 1.3 mm (No. 18 B.W. gage) wire ties
spaced 150 mm on center. 20 mm channel
saddle tied to 50 mm channels with
doubled 1.6 mm (No. 16 B.W. gage) wire
ties. 50 mm channels spaced 915 mm on
center suspended 50 mm below steel
framing and saddle-tied with 4.2 mm (No.
8 B.W. gage) wire. Plaster mixed 1:2 by
weight, gypsum-to-sand aggregate
Ceiling of gypsum plaster on metal lath.
Lath attached to 20 mm furring channels
with 1.3 mm (No. 18 B.W. gage) wire ties
spaced 150 mm on center. 20 mm
channels saddle tied to 50 mm channels
with doubled 1.6 mm (No. 16 B.W. gage)
wire ties. 50 mm channels spaced 915 mm
on center suspended 50 mm below steel
framing and saddle tied with 4.2 mm (No.
8 B.W. gage) wire. Plaster mixed 1:2 for
scratch coat and 1:3 for brown coat, by
weight, gypsum-to-sand aggregate for 1hour system. For 2-hour system, plaster
mix is 1:2 by weight, gypsum-to-sand
aggregate
(Continued)
2007
THICKNESS OF
MINIMUM
FLOOR OR ROOF
THICKNESS OF
SLAB
CEILING
(mm)
(mm)
4
3
2
1
4
3
2
1
hour hour hour hour hour hour hour hour
—
—
65
—
—
—
20
—
—
—
200h
—
—
—
16
—
—
—
—
140i
—
—
—
—
65j
—
—
—
20
—
—
—
65
—
—
—
30k
—
—
—
—
—
50
25
—
—
20l
20l
—
—
40
25
—
—
22g
20l
4/61
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
TABLE 4B.20.1(3) – continued
MINIMUM PROTECTION FOR FLOOR AND ROOF SYSTEMSa, q
FLOOR OR ROOF
CONSTRUCTION
12.40 mm deep steel roof deck
on steel-framing insulation
of rigid board consisting of
expanded perlite and fibers
impregnated with integral
asphalt waterproofing;
density 145 to 195 kg/m3
secured to metal roof deck
by 13 mm wide ribbons of
waterproof, cold-process
liquid adhesive spaced 150
mm apart. Steel joist or
light steel construction with
metal roof deck, insulation,
and Class A or B built-up
roof covering.e
ITEM
NUMBER
CEILING CONSTRUCTION
12-1.1
Gypsum-vermiculite plaster on metal lath
wire tied at 150 mm intervals to 20 mm
furring channels spaced 305 mm on center
and wire tied to 50 mm runner channels
spaced 815 mm on center. Runners wire
tied to bottom chord of steel joists
13-1.1
13. Double wood floor over
wood joists spaced 405
mm on center.m,n
13-1.2
13-1.3
13-1.4
14. Plywood stressed skin
panels consisting of 16
mm-thick interior C-D
(exterior glue) top stressed
skin on 50 mm × 150 mm
nominal (minimum)
stringers. Adjacent panel
edges joined with 8d
common wire nails spaced
150 mm on center.
Stringers spaced 305 mm
maximum on center.
SBC 801
14-1.1
Gypsum plaster over 10 mm Type X
gypsum lath. Lath initially applied with
not less than four 30 mm by No. 13 gage
by 8 mm head plasterboard blued nails per
bearing. Continuous stripping over lath
along all joist lines. Stripping consists of
75 mm wide strips of metal lath attached
by 40 mm by No. 11 gage by 13 mm head
roofing nails spaced 150 mm on center.
Alternate stripping consists of 75 mm
wide 1.3 mm diameter wire stripping
weighing 0.54 kilograms per square meter
and attached by No.16 gage by 40 mm by
20 mm crown width staples, spaced 100
mm on center. Where alternate stripping
is used, the lath nailing may consist of
two nails at each end and one nail at each
intermediate bearing. Plaster mixed 1:2 by
weight, gypsum-to-sand aggregate
Cement or gypsum plaster on metal lath.
Lath fastened with 40 mm by No. 11 gage
by 11 mm head barbed shank roofing
nails spaced 125 mm on center. Plaster
mixed 1:2 for scratch coat and 1:3 for
brown coat, by weight, cement to sand
aggregate
Perlite or vermiculite gypsum plaster on
metal lath secured to joists with 40 mm by
No. 11 gage by 11 mm head barbed shank
roofing nails spaced 125 mm on center
13 mm Type X gypsum wallboardc nailed
to joists with 5d coolero or wallboardo
nails at 150 mm on center. End joints of
wallboard centered on joists
13 mm-thick wood fiberboard weighing
240 to 290 kilograms per cubic meter
installed with long dimension parallel to
stringers or 10 mm C-D (exterior glue)
plywood glued and/or nailed to stringers.
Nailing to be with 5d coolero or
wallboardo nails at 305 mm on center.
Second layer of 13 mm Type X gypsum
wallboardc applied with long dimension
perpendicular to joists and attached with
8d coolero or wallboardo nails at 150 mm
on center at end joints and 200 mm on
center elsewhere. Wallboard joints
staggered with respect to fiberboard joints
(Continued)
2007
THICKNESS OF
MINIMUM
FLOOR OR ROOF
THICKNESS OF
SLAB
CEILING
(mm)
(mm)
4
3
2
1
4
3
2
1
hour hour hour hour hour hour hour hour
—
—
25
—
—
—
22
—
—
—
—
—
—
—
—
22
—
—
—
—
—
—
—
16
—
—
—
—
—
—
—
16
—
—
—
—
—
—
—
13
—
—
—
—
—
—
—
25
4/62
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
TABLE 4B.20.1(3) – continued
MINIMUM PROTECTION FOR FLOOR AND ROOF SYSTEMSa, q
FLOOR OR ROOF
CONSTRUCTION
15. Vermiculite concrete slab
proportioned 1:4 (Portland
cement to vermiculite
aggregate) on a 40 mmdeep steel deck supported
on individually protected
steel framing. Maximum
span of deck 2.1 meter
where deck is less than 0.5
mm (No. 26 carbon steel
sheet gage) or greater.
Slab reinforced with 100 ×
200 mm 2.8/2.1 mm (No.
12/14 B.W. gage) welded
wire mesh.
16. Perlite concrete slab
proportioned 1:6 (portland
cement to perlite aggregate)
on a 32 mm-deep steel deck
supported on individually
protected steel framing.
Slab reinforced with 100 ×
200 mm 2.8/2.1 mm (No.
12/14 B.W. gage) welded
wire mesh.
17. Perlite concrete slab
proportioned 1:6 (portland
cement to perlite aggregate)
on a 14 mm-deep steel deck
supported by steel joists
1.22 m on center. Class A
or B roof covering on top.
18. Perlite concrete slab
proportion-ed 1:6
(portland cement to perlite
aggregate) on 32 mm-deep
steel deck supported on
individually protected steel
framing. Maximum span
of deck 2.1 meter where
deck is less than 0.5 mm
(No. 26 carbon sheet steel
gage) and 2.4 meter where
deck is 0.5 mm (No. 26
carbon sheet steel gage)or
greater. Slab reinforced
with 1.1 mm (No. 19 B.W.
gage) hexagonal wire
mesh. Class A or B roof
covering on top.
19. Floor and beam
construction consisting of
75 mm-deep cellular steel
floor unit mounted on steel
members with 1:4
(proportion of portland
cement to perlite aggregate)
perlite-concrete floor slab
on top.
SBC 801
THICKNESS OF
MINIMUM
FLOOR OR ROOF
THICKNESS OF
SLAB
CEILING
(mm)
(mm)
4
3
2
1
4
3
2
1
hour hour hour hour hour hour hour hour
ITEM
NUMBER
CEILING CONSTRUCTION
15-1.1
None
—
—
—
75j
—
—
—
—
16-1.1
None
—
—
—
90j
—
—
—
—
17-1.1
Perlite gypsum plaster on metal lath wire
tied to 20 mm furring channels attached
with 1.6 mm (No. 16 B.W. gage) wire ties
to lower chord of joists
—
50p
50p
—
—
22
20
—
18-1.1
None
—
60p
60p
—
—
—
—
—
50p
—
—
—
25l
—
—
—
19-1.1
Suspended envelope ceiling of perlite
gypsum plaster on metal lath attached to
20 mm cold-rolled channels, secured to 40
mm cold-rolled channels spaced 1.07 m
on center supported by 5.2 mm (No. 6
B.W. gage) wire 915 mm on center.
Beams in envelope with 75 mm minimum
airspace between beam soffit and lath
have a 4-hour rating
(Continued)
2007
4/63
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
TABLE 4B.20.1(3) – continued
MINIMUM PROTECTION FOR FLOOR AND ROOF SYSTEMSa, q
FLOOR OR ROOF
CONSTRUCTION
20. Perlite concrete
proportioned 1:6 (portland
cement to perlite aggregate)
poured to 3 mm thickness
above top of corrugations of
35 mm-deep galvanized
steel deck maximum span
2.4 meter for 0.6-mm (No.
24 galvanized sheet gage)
or 2.1 meter for 0.5-mm
(No. 26 galvanized sheet
gage) with deck supported
by individually protected
steel framing. Approved
polystyrene foam plastic
insulation board having a
flame spread not exceeding
75 (25 mm to 100 mm
thickness) with vent holes
that approximate 3 percent
of the board surface area
placed on top of perlite
slurry. A 0.61 m by 1.22 m
insulation board contains
six 70 mm diameter holes.
Board covered with 60 mm
minimum perlite concrete
slab.
21. Slab reinforced with mesh
consisting of 1.1 mm (No.
19 B.W. gage) galvanized
steel wire twisted together
to form 50 mm hexagons
with straight 1.6 mm (No.
16 B.W. gage) galvanized
steel wire woven into mesh
and spaced 75 mm.
Alternate slab
reinforcement shall be
permitted to consist of 100
mm × 200 mm, 2.8/2.1 mm
(No. 12/4 B.W. gage), or 50
mm × 50 mm, 2.1/2.1-mm
(No. 14/14 B.W. gage)
welded wire fabric. Class A
or B roof covering on top.
22. Wood joists, floor trusses
and flat or pitched roof
trusses spaced a maximum
610 mm o.c. with 13 mm
wood structural panels with
exterior glue applied at
right angles to top of joist
or top chord of trusses with
8d nails. The wood
structural panel thickness
shall not be less than
nominal 13 mm.
SBC 801
THICKNESS OF
MINIMUM
FLOOR OR ROOF
THICKNESS OF
SLAB
CEILING
(mm)
(mm)
4
3
2
1
4
3
2
1
hour hour hour hour hour hour hour hour
ITEM
NUMBER
CEILING CONSTRUCTION
20-1.1
None
—
—
Varies
—
—
—
—
—
21-1.1
None
—
—
Varies
—
—
—
—
—
—
—
—
Varies
—
—
—
32
22-1.1
Base layer 16 mm Type X gypsum
wallboard applied at right angles to joist
or truss 610 mm o.c. with 32 mm Type S
or Type W drywall screws 610 mm o.c.
Face layer 16 mm Type X gypsum
wallboard or veneer base applied at right
angles to joist or truss through base layer
with 50 mm Type S or Type W drywall
screws 305 mm o.c. at joints and
intermediate joist or truss. Face layer
Type G drywall screws placed 50 mm
back on either side of face layer end
joints, 305 mm o.c.
(Continued)
2007
4/64
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
TABLE 4B.20.1(3) – continued
MINIMUM PROTECTION FOR FLOOR AND ROOF SYSTEMSa,q
FLOOR OR ROOF
CONSTRUCTION
23. Steel joists, floor trusses
and flat or pitched roof
trusses spaced a maximum
610 mm o.c. with 13 mm
wood structural panels
with exterior glue applied
at right angles to top of
joist or top chord of
trusses with No. 8 screws.
The wood structural panel
thickness shall not be less
than nominal 13 mm nor
less than required by SBC
306.
24. Wood I-joist (minimum
joist depth 235 mm with a
minimum flange depth of
35 mm and a minimum
flange cross sectional area
of 1,485 square
millimeters) at 610 mm
o.c. spacing with 1 × 4
(nominal) wood furring
strip spacer applied
parallel to and covering
the bottom of the bottom
flange of each member,
tacked in place. 50 mm
mineral fiber insulation, 56
kg/m3 (nominal) installed
adjacent to the bottom
flange of the I-joist and
supported by the 1 × 4
furring strip spacer.
a.
b.
c.
d.
e.
f.
g.
h.
i.
j.
k.
l.
m.
n.
o.
p.
q.
ITEM
NUMBER
CEILING CONSTRUCTION
23-1.1
Base layer 16 mm Type X gypsum board
applied at right angles to steel framing
610 mm on center with 25 mm Type S
drywall screws spaced 610 mm on center.
Face layer 16 mm Type X gypsum board
applied at right angles to steel framing
attached through base layer with 40 mm
Type S drywall screws 305 mm on center
at end joints and intermediate joints and
40 mm Type G drywall screws 305 mm
on center placed 50 mm back on either
side of face layer end joints. Joints of the
face layer are offset 610 mm from the
joints of the base layer
24-1.1
13 mm deep single leg resilient channel
405 mm on center (channels doubled at
wallboard
end
joints),
placed
perpendicular to the furring strip and joist
and attached to each joist by 50 mm Type
S drywall screws. 16 mm Type C gypsum
wallboard applied perpendicular to the
channel with end joints staggered at least
1.22 m and fastened with 30 mm Type S
drywall screws spaced 175 mm on center.
Wallboard joints to be taped and covered
with joint compound
THICKNESS OF
MINIMUM
FLOOR OR ROOF
THICKNESS OF
SLAB
CEILING
(mm)
(mm)
4
3
2
1
4
3
2
1
hour hour hour hour hour hour hour hour
—
—
—
Varies
—
—
—
32
—
—
—
Varies
—
—
—
—
Staples with equivalent holding power and penetration shall be permitted to be used as alternate fasteners to nails for attachment to wood framing.
When the slab is in an unrestrained condition, minimum reinforcement cover shall not be less than 40 mm for 4-hour (siliceous aggregate only); 32 mm for 4- and
3-hour; 25 mm for 2-hour (siliceous aggregate only); and 20 mm for all other restrained and unrestrained conditions.
For all of the construction with gypsum wallboard described in this table, gypsum base for veneer plaster of the same size, thickness and core type shall be
permitted to be substituted for gypsum wallboard, provided attachment is identical to that specified for the wallboard, and the joints on the face layer are reinforced
and the entire surface is covered with a minimum of 1.6 mm gypsum veneer plaster.
Slab thickness over steel joists measured at the joists for metal lath form and at the top of the form for steel form units.
(a) The maximum allowable stress level for H-Series joists shall not exceed 151,690 kPa.
(b) The allowable stress for K-Series joists shall not exceed 179,270 kPa, the nominal depth of such joist shall not be less than 250 mm and the nominal joist
weight shall not be less than 7.5 kg/m.
Cement plaster with 7 kilograms of hydrated lime and 1.4 kilograms of approved additives or admixtures per bag of cement.
Gypsum wallboard ceilings attached to steel framing shall be permitted to be suspended with 40 mm cold-formed carrying channels spaced 1.22 m on center,
which are suspended with No. 8 SWG galvanized wire hangers spaced 1.22 m on center. Cross-furring channels are tied to the carrying channels with No. 18 SWG
galvanized wire hangers spaced 1.22 m on center. Cross-furring channels are tied to the carrying channels with No. 18 SWG galvanized wire (double strand) and
spaced as required for direct attachment to the framing. This alternative is also applicable to those steel framing assemblies recognized under Note q.
Six-inch hollow clay tile with 50 mm concrete slab above.
Four-inch hollow clay tile with 40 mm concrete slab above.
Thickness measured to bottom of steel form units.
Five-eighths inch of vermiculite gypsum plaster plus 13 mm of approved vermiculite acoustical plastic.
Furring channels spaced 305 mm on center.
Double wood floor shall be permitted to be either of the following:
(a) Subfloor of 25 mm nominal boarding, a layer of asbestos paper weighing not less than 6.4 kilograms per 9.3 square meters and a layer of 25 mm nominal
tongue-and-groove finished flooring; or
(b) Subfloor of 25 mm nominal tongue-and-groove boarding or 12 mm wood structural panels with exterior glue and a layer of 25 mm nominal tongue-and-groove
finished flooring or 15 mm wood structural panel finish flooring or a layer of Type I Grade M-1 particleboard not less than 16 mm thick.
The ceiling shall be permitted to be omitted over unusable space, and flooring shall be permitted to be omitted where unusable space occurs above.
For properties of cooler or wallboard nails, see ASTM C 514, ASTM C 547 or ASTM F 1667.
Thickness measured on top of steel deck unit.
Generic fire-resistance ratings those not designated as PROPRIETARY in the listing in the GA 600 shall be accepted as if herein listed.
SBC 801
2007
4/65
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
Concrete assemblies. The provisions of this section contain procedures by which
the fire-resistance ratings of concrete assemblies are established by calculations.
4B.21.2.1 Concrete walls. Cast-in-place and precast concrete walls shall comply with
Section 4B.21.2.1.1. Multiwythe concrete walls shall comply with Section
4B.21.2.1.2. Joints between precast panels shall comply with Section 4B.21.2.1.3.
Concrete walls with gypsum wallboard or plaster finish shall comply with Section
4B.21.2.1.4.
4B.21.2.1.1 Cast-in-place or precast walls. The minimum equivalent thicknesses of cast-inplace or precast concrete walls for fire-resistance ratings of 1 hour to 4 hours are
shown in Table 4B.21.2.1.1. For solid walls with flat vertical surfaces, the
equivalent thickness is the same as the actual thickness. The values in Table
4B.21.2.1.1 apply to plain, reinforced or prestressed concrete walls.
4B.21.2
TABLE 4B.21.2.1.1
MINIMUM EQUIVALENT THICKNESS OF CAST-IN-PLACE OR
PRECAST CONCRETE WALLS, LOAD-BEARING OR NONLOADBEARING
MINIMUM WALL THICKNESS (mm)
FOR FIRE-RESISTANCE RATING OF
CONCRETE TYPE
1-hour
1 ½ -hour
2-hour
3-hour
4-hour
Siliceous
90
110
125
160
175
Carbonate
80
100
115
145
170
Sand-Lightweight
70
85
95
115
135
Lightweight
65
80
90
110
130
4B.21.2.1.1.1 Hollow-core precast wall panels. For hollow-core precast concrete wall panels
in which the cores are of constant cross section throughout the length, calculation
of the equivalent thickness by dividing the net cross-sectional area (the gross cross
section minus the area of the cores) of the panel by its width shall be permitted.
4B.21.2.1.1.2 Core spaces filled. Where all of the core spaces of hollow-core wall panels are
filled with loose-fill material, such as expanded shale, clay, or slag, or vermiculite
or perlite, the fire-resistance rating of the wall is the same as that of a solid wall of
the same concrete type and of the same overall thickness.
4B.21.2.1.1.3 Tapered cross sections. The thickness of panels with tapered cross sections shall
be that determined at a distance 2t or 150 mm, whichever is less, from the point of
minimum thickness, where t is the minimum thickness.
4B.21.2.1.1.4 Ribbed or undulating surfaces. The equivalent thickness of panels with ribbed
or undulating surfaces shall be determined by one of the following expressions:
For s � 4t, the thickness to be used shall be t
For s � 2t, the thickness to be used shall be te
For 4t > s > 2t, the thickness to be used shall be
� 4t
�
t � �� � 1�� �t e � t �
� s
�
(Equation 4B.-3)
Where:
s =
Spacing of ribs or undulations.
t =
Minimum thickness.
Equivalent thickness of the panel calculated as the net cross-sectional
te =
area of the panel divided by the width, in which the maximum
thickness used in the calculation shall not exceed 2t.
SBC 801
2007
4/66
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
4B.21.2.1.2 Multiwythe walls. For walls that consist of two wythes of different types of
THICKNESS OF OUTSIDE WYTHE OF CARBONATE
OR SILICEOUS AGGREGATE CONCRETE (mm)
THICKNESS OF OUTSIDE WYTHE OF
SAND-LIGHTWEIGHT CONCRETE (mm)
4B.21.2.1.2.1
concrete, the fire-resistance ratings shall be permitted to be determined from
Figure 4B.21.2.1.2.
Two or more wythes. The fire-resistance rating for wall panels consisting of two
or more wythes shall be permitted to be determined by the formula:
1.7
R � �R10.59 � R20.59 � � � Rn0.59 �
(Equation 4B.-4)
Where:
R = The fire endurance of the assembly, minutes.
R1, R2, and Rn = The fire endurances of the individual wythes, minutes. Values of
Rn0.59 for use in Equation 4B.-4 are given in Table 4B.21.2.1.2(1).
Calculated fire-resistance ratings are shown in Table
4B.21.2.1.2(2).
INSIDE WYTHE CARBONATE
120
INSIDE WYTHE SILICEOUS
120
100
100
80
4 hr.
80
60
3 hr.
60
40
1 hr.
20
4 hr.
3 hr.
40
2 hr.
1 hr.
20
2 hr.
0
0
0
30
60
90
0
120
30
60
90
120
THICKNESS OF INSIDE WYTHE (mm)
THICKNESS OF INSIDE WYTHE (mm)
OUTSIDE WYTHE CARBONATE
OUTSIDE WYTHE SILICEOUS
120
120
4 hr.
100
3 hr.
80
40
20
20
0
0
0
30
2 hr.
60
1 hr.
40
3 hr.
80
2 hr.
60
4 hr.
100
60
90
1 hr.
0
120
30
60
90
120
THICKNESS OF INSIDE WYTHE OF SAND-LIGHTWEIGHT CONCRETE (mm)
FIGURE 4B.21.2.1.2
FIRE-RESISTANCE RATINGS OF TWO-WYTHE CONCRETE WALLS
SBC 801
2007
4/67
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
TYPE OF
MATERIAL
Siliceous aggregate
concrete
Carbonate
aggregate concrete
Sand-lightweight
concrete
Lightweight
concrete
Insulating
concretea
Airspaceb
a.
b.
c.
40
TABLE 4B.21.2.1.2(1)
VALUES OF Rn0.59 FOR USE IN EQUATION 4B.-4
THICKNESS OF MATERIAL (mm)
50
65
75
90 100
115
125
140
150
165
175
5.3
6.5
8.1
9.5
11.3 13.0
14.9
16.9
18.8
20.7
22.8
25.1
5.5
7.1
8.9
10.4 12.0 14.0
16.2
18.1
20.3
21.9
24.7
27.2c
6.5
8.2
10.5 12.8 15.5 18.1
20.7
23.3
26.0c
Note c Note c Note c
6.6
8.8
11.2 13.7 16.5 19.1
21.9
24.7
27.8c
Note c Note c Note c
9.3 13.3 16.6 18.3 23.1 26.5c Note c Note c Note c Note c Note c Note c
–
–
–
–
–
–
–
–
–
–
–
–
3
Dry unit weight of 560 kg/m or less and consisting of cellular, perlite or vermiculite concrete.
The Rn0.59 value for 40 mm to 90 mm airspace is 3.3. The Rn0.59 value for 65 mm to 90 mm airspaces is 6.7.
The fire-resistance rating for this thickness exceeds 4 hours.
TABLE 4B.21.2.1.2(2)
FIRE-RESISTANCE RATINGS BASED ON R0.59
a.
Ra, MINUTES
60
R0.59
11.20
120
16.85
180
21.41
240
25.37
Based on Equation 4B.4
Foam plastic insulation. The fire-resistance ratings of precast concrete wall
panels consisting of a layer of foam plastic insulation sandwiched between two
wythes of concrete shall be permitted to be determined by use of Equation 4B.-4.
Foam plastic insulation with a total thickness of less than 25 mm shall be
disregarded. The Rn value for thickness of foam plastic insulation of 25 mm or
greater, for use in the calculation, is 5 minutes; therefore Rn0.59 = 2.5.
4B.21.2.1.3 Joints between precast wall panels. Joints between precast concrete wall panels
which are not insulated as required by this section shall be considered as openings
in walls. Uninsulated joints shall be included in determining the percentage of
openings permitted by Table 4B.4.8. Where openings are not permitted or are
required by these code requirements to be protected, the provisions of this section
shall be used to determine the amount of joint insulation required. Insulated joints
shall not be considered openings for purposes of determining compliance with the
allowable percentage of openings in Table 4B.4.8.
4B.21.2.1.3.1 Ceramic fiber joint protection. Figure 4B.21.2.1.3.1 shows thicknesses of
ceramic fiber blankets to be used to insulate joints between precast concrete wall
panels for various panel thicknesses and for joint widths of 10 mm and 25 mm for
fire-resistance ratings of 1 hour to 4 hours. For joint widths between 10 mm and 25
mm, the thickness of ceramic fiber blanket is allowed to be determined by direct
interpolation. Other tested and labeled materials are acceptable in place of ceramic
fiber blankets.
4B.21.2.1.2.2
SBC 801
2007
4/68
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
THICKNESS OF CERAMIC BLANKET "C" (mm)
100
4 hr.
25 mm JOINT WIDTH
4 hr.
3 hr.
75
3hr.
2 hr.
50
1 hr.
25
0
75
100
125
150
175
200
THICKNESS OF CERAMIC BLANKET
"C" (mm)
PANEL THICKNESS (mm)
75
10 mm JOINT WIDTH
50
2 hr.
25
3hr.
2 hr.
3 hr.
4 hr.
1 hr.
4 hr.
1 hr.
0
75
100
125
150
175
200
PANEL THICKNESS (mm)
FIGURE 4B.21.2.1.3.1
CERAMIC FIBER JOINT PROTECTION
4B.21.2.1.4 Walls with gypsum wallboard or plaster finishes. The fire-resistance rating of
cast-in-place or precast concrete walls with finishes of gypsum wallboard or
plaster applied to one or both sides shall be permitted to be calculated in
accordance with the provisions of this section.
4B.21.2.1.4.1 Nonfire-exposed side. Where the finish of gypsum wallboard or plaster is applied
to the side of the wall not exposed to fire, the contribution of the finish to the total
fire-resistance rating shall be determined as follows: The thickness of the finish
shall first be corrected by multiplying the actual thickness of the finish by the
applicable factor determined from Table 4B.21.2.1.4(1) based on the type of
aggregate in the concrete. The corrected thickness of finish shall then be added to
the actual or equivalent thickness of concrete and fire-resistance rating of the
concrete and finish determined from Table 4B.21.2.1.1, Figure 4B.21.2.1.2 or
Table 4B.21.2.1.2(1).
4B.21.2.1.4.2 Fire-exposed side. Where gypsum wallboard or plaster is applied to the fireexposed side of the wall, the contribution of the finish to the total fire-resistance
rating shall be determined as follows: The time assigned to the finish as
established by Table 4B.21.2.1.4(2) shall be added to the fire-resistance rating
determined from Table 4B.21.2.1.1 or Figure 4B.21.2.1.2, or Table 4B.21.2.1.2(1)
for the concrete alone, or to the rating determined in Section 4B.21.2.1.4.1 for the
concrete and finish on the nonfire-exposed side.
4B.21.2.1.4.3 Nonsymmetrical assemblies. For a wall having no finish on one side or different
types or thicknesses of finish on each side, the calculation procedures of Sections
4B.21.2.1.4.1 and 4B.21.2.1.4.2 shall be performed twice, assuming either side of
the wall to be the fire-exposed side. The fire-resistance rating of the wall shall not
exceed the lower of the two values.
Exception: For an exterior wall with more than 1.5 m of horizontal separation, the
fire shall be assumed to occur on the interior side only.
SBC 801
2007
4/69
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
TABLE 4B.21.2.1.4(1)
MULTIPLYING FACTOR FOR FINISHES ON NONFIRE-EXPOSED SIDE OF WALL
TYPE OF AGGREGATE USED IN CONCRETE OR CONCRETE MASONRY
TYPE OF FINISH APPLIED TO
MASONRY WALL
Portland cement-sand plaster
Gypsum-sand plaster or gypsum
wallboard
Gypsum-vermiculite or perlite
plaster
a.
Concrete:
siliceous or
carbonate
Masonry:
siliceous or
calcareous
gravel
1.00
Concrete: sand
lightweight
concrete
Masonry:
limestone,
cinders or
unexpected slag
0.75a
Concrete:
light-weight
concrete
Masonry:
expanded
shale, clay or
slate
0.75a
Concrete:
pumice, or
expanded
slag
0.50a
1.25
1.00
1.00
1.00
1.75
1.50
1.50
1.25
For Portland cement-sand plaster 16 mm or less in thickness and applied directly to the masonry on the nonfire-exposed side of
the wall, the multiplying factor shall be 1.00.
Minimum concrete fire-resistance rating. Where finishes applied to one or both
sides of a concrete wall contribute to the fire-resistance rating, the concrete alone
shall provide not less than one-half of the total required fire-resistance rating.
Additionally, the contribution to the fire resistance of the finish on the nonfireexposed side of a load-bearing wall shall not exceed one-half the contribution of
the concrete alone.
4B.21.2.1.4.5 Concrete finishes. Finishes on concrete walls that are assumed to contribute to the
total fire-resistance rating of the wall shall comply with the installation
requirements of Section 4B.21.3.2.5.
4B.21.2.2 Concrete floor and roof slabs. Reinforced and prestressed floors and roofs shall
comply with Section 4B.21.2.2.1. Multicourse floors and roofs shall comply with
Sections 4B.21.2.2.2 and 4B.21.2.2.3, respectively.
4B.21.2.2.1 Reinforced and prestressed floors and roofs. The minimum thicknesses of
reinforced and prestressed concrete floor or roof slabs for fire-resistance ratings of
1 hour to 4 hours are shown in Table 4B.21.2.2.1.
4B.21.2.1.4.4
TABLE 4B.21.2.1.4(2)
TIME ASSIGNED TO FINISH MATERIALS ON FIRE-EXPOSED SIDE OF
WALL
FINISH DESCRIPTION
Gypsum wallboard
10 mm
13 mm
16 mm
2 layers of 10 mm
1 layer 10 mm, 1 layer 13 mm
2 layers 13 mm
Type X gypsum wallboard
13 mm
16 mm
Portland cement-sand plaster applied
directly to concrete masonry
Portland cement-sand plaster on metal lath
20 mm
22 mm
25 mm
Gypsum sand plaster on 10 mm gypsum lath
13 mm
16 mm
20 mm
Gypsum sand plaster on metal lath
20 mm
22 mm
25 mm
TIME (minute)
10
15
20
25
35
40
25
40
See Note a
20
25
30
35
40
50
50
60
80
a. The actual thickness of Portland cement-sand plaster, provided it is 16 mm or less in thickness, shall be
permitted to be included in determining the equivalent thickness of the masonry for use in Table 4B.21.3.2.
SBC 801
2007
4/70
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
TABLE 4B.21.2.2.1
MINIMUM SLAB THICKNESS (mm)
FIRE-RESISTANCE RATING (hour)
4B.21.2.2.1.1
4B.21.2.2.1.2
CONCRETE TYPE
1
1½
2
3
4
Siliceous
90
110
125
160
175
Carbonate
80
100
115
145
170
Sand-lightweight
70
85
95
115
135
Lightweight
65
80
90
110
130
Hollow-core prestressed slabs. For hollow-core prestressed concrete slabs in
which the cores are of constant cross section throughout the length, the equivalent
thickness shall be permitted to be obtained by dividing the net cross-sectional area
of the slab including grout in the joints, by its width.
Slabs with sloping soffits. The thickness of slabs with sloping soffits (see Figure
4B.21.2.2.1.2) shall be determined at a distance 2t or 150 mm, whichever is less,
from the point of minimum thickness, where t is the minimum thickness.
FIGURE 4B.21.2.2.1.2
DETERMINATION OF SLAB
THICKNESS FOR SLOPING SOFFITS
4B.21.2.2.1.3
Slabs with ribbed soffits. The thickness of slabs with ribbed or undulating soffits
(see Figure 4B.21.2.2.1.3) shall be determined by one of the following
expressions, whichever is applicable:
For s � 4t, the thickness to be used shall be t
For s � 2t, the thickness to be used shall be te
For 4t > s > 2t, the thickness to be used shall be
� 4t �
t � �� � 1�� �t e � t �
� s
�
(Equation 4B.-5)
Where:
s = Spacing of ribs or undulations.
t = Minimum thickness.
te = Equivalent thickness of the slab calculated as the net area of the slab
divided by the width, in which the maximum thickness used in the
calculation shall not exceed 2t.
SBC 801
2007
4/71
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
FIGURE 4B.21.2.2.1.3
SLABS WITH RIBBED OR UNDULATING SOFFITS
4B.21.2.2.2 Multicourse floors. The fire-resistance ratings of floors that consist of a base slab
4B.21.2.2.3
4B.21.2.2.3.1
4B.21.2.2.4
4B.21.2.3
4B.21.2.3.1
4B.21.2.3.2
4B.21.2.3.3
SBC 801
of concrete with a topping (overlay) of a different type of concrete shall comply
with Figure 4B.21.2.2.2.
Multicourse roofs. The fire-resistance ratings of roofs which consist of a base slab
of concrete with a topping (overlay) of an insulating concrete or with an insulating
board and built-up roofing shall comply with Figures 4B.21.2.2.3(1) and
4B.21.2.2.3(2).
Heat transfer. For the transfer of heat, three-ply built-up roofing contributes 10
minutes to the fire-resistance rating. The fire-resistance rating for concrete
assemblies such as those shown in Figure 4B.21.2.2.3(1) shall be increased by 10
minutes. This increase is not applicable to those shown in Figure 4B.21.2.2.3(2).
Joints in precast slabs. Joints between adjacent precast concrete slabs need not be
considered in calculating the slab thickness provided that a concrete topping at
least 25 mm thick is used. Where no concrete topping is used, joints must be
grouted to a depth of at least one-third the slab thickness at the joint, but not less
than 25 mm, or the joints must be made fire resistant by other approved methods.
Concrete cover over reinforcement. The minimum thickness of concrete cover
over reinforcement in concrete slabs, reinforced beams and prestressed beams shall
comply with this section.
Slab cover. The minimum thickness of concrete cover to the positive moment
reinforcement shall comply with Table 4B.21.2.3(1) for reinforced concrete and
Table 4B.21.2.3(2) for prestressed concrete. These tables are applicable for solid
or hollow-core one-way or two-way slabs with flat undersurfaces. These tables are
applicable to slabs that are either cast in place or precast. For precast prestressed
concrete not covered elsewhere, the procedures contained in PCI MNL 124 shall
be acceptable.
Reinforced beam cover. The minimum thickness of concrete cover to the positive
moment reinforcement (bottom steel) for reinforced concrete beams is shown in
Table 4B.21.2.3(3) for fire-resistance ratings of 1 hour to 4 hours.
Prestressed beam cover. The minimum thickness of concrete cover to the
positive moment prestressing tendons (bottom steel) for restrained and
unrestrained prestressed concrete beams and stemmed units shall comply with the
values shown in Tables 4B.21.2.3(4) and 4B.21.2.3(5) for fire-resistance ratings of
1 hour to 4 hours. Values in Table 4B.21.2.3(4) apply to beams 200 mm or greater
in width. Values in Table 4B.21.2.3(5) apply to beams or stems of any width,
2007
4/72
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
THICKNESS OF SAND-LIGHTWEIGHT
CONCRETE OVERLAY (mm)
provided the cross-section area is not less than 25,810 mm2. In case of differences
between the values determined from Table 4B.21.2.3(4) or 4B.21.2.3(5), it is
permitted to use the smaller value. The concrete cover shall be calculated in
accordance with Section 4B.21.2.3.3.1. The minimum concrete cover for
nonprestressed reinforcement in prestressed concrete beams shall comply with
Section 4B.21.2.3.2.
CARBONATE BASE
SILICEOUS BASE
120
120
100
100
4 hr.
80
60
60
3 hr.
40
1 hr.
20
4 hr.
80
3 hr.
40
2 hr.
1 hr.
20
2 hr.
0
0
0
30
60
90
0
120
30
60
90
120
THICKNESS OF NORMAL WEIGHT CONCRETE BASE SLAB (mm)
OVERLAY THICKNESS (mm)
CARBONATE OVERLAY
SILICEOUS OVERLAY
120
120
4 hr.
100
3 hr.
80
40
20
20
0
0
0
30
2 hr.
60
1 hr.
40
3 hr.
80
2 hr.
60
4 hr.
100
60
90
1 hr.
0
120
30
60
90
120
THICKNESS OF SAND-LIGHTWEIGHT CONCRETE BASE SLAB (mm)
FIGURE 4B.21.2.2.2
FIRE-RESISTANCE RATINGS FOR TWO-COURSE CONCRETE FLOORS
SBC 801
2007
4/73
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
CELLULAR CONCRETE
CONCRETE
SILICEOUS BASE
(a)
T H IC K N ESS O F C EL LU LA R
CO N C RETE O V E RLA Y (m m )
CARBONATE BASE
SAND-LIGHTWEIGHT BASE
75
75
75
4 hr.
50
2 hr. 3 hr.
25
1 hr.
4 hr.
50
2 hr. 3 hr.
25
1 hr.
2 hr. 3 hr.
25
1 hr.
0
0
0
0
25
50
0
75 100
4 hr.
50
25
50
0
75 100
25
50
75 100
THICKNESS OF CONCRETE BASE SLAB (mm)
PERLITE CONCRETE
(b)
THICKNESS OF PERLITE
CONCRETE OVERLAY (mm)
CONCRETE
SILICEOUS BASE
CARBONATE BASE
75
4 hr.
50
2 hr. 3 hr.
50
4 hr.
3 hr.
2 hr.
25
1 hr.
25
1 hr.
75
SAND-LIGHTWEIGHT BASE
100
100
100
0
25
50
75
2 hr. 3 hr.
1 hr.
0
0
100
25
4 hr.
50
0
0
75
25
50
75
0
100
25
50
75
100
THICKNESS OF CONCRETE BASE SLAB (mm)
VERMICULITE CONCRETE
(c)
THICKNESS OF VERMICULITE
CONCRETE OVERLAY (mm)
CONCRETE
SAND-LIGHTWEIGHT BASE
SILICEOUS BASE
CARBONATE BASE
100
100
100
75
4 hr.
75
4 hr.
75
50
2 hr. 3 hr.
50
2 hr. 3 hr.
50
1 hr.
25
0
0
0
0
25
50
75
100
1 hr.
25
1 hr.
25
4 hr.
2 hr. 3 hr.
0
25
50
75
100
0
25
50
75
100
THICKNESS OF CONCRETE BASE SLAB (mm)
FIGURE 4B.21.2.2.3(1)
FIRE-RESISTANCE RATINGS FOR CONCRETE ROOF ASSEMBLIES
4B.21.2.3.3.1
SBC 801
Calculating concrete cover. The concrete cover for an individual tendon is the
minimum thickness of concrete between the surface of the tendon and the fireexposed surface of the beam, except that for ungrouped ducts, the assumed cover
thickness is the minimum thickness of concrete between the surface of the duct
and the fire-exposed surface of the beam. For beams in which two or more tendons
are used, the cover is assumed to be the average of the minimum cover of the
individual tendons. For corner tendons (tendons equal distance from the bottom
and side), the minimum cover used in the calculation shall be one-half the actual
value. For stemmed members with two or more prestressing tendons located along
the vertical centerline of the stem, the average cover shall be the distance from the
2007
4/74
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
bottom of the member to the centroid of the tendons. The actual cover for any
individual tendon shall not be less than one-half the smaller value shown in Tables
4B.21.2.3(4) and 4B.21.2.3(5), or 25 mm, whichever is greater.
STANDARD 3-PLY
BUILT-UP ROOFING
(d)
THICKNESS OF MINERAL BOARD, mm
MINERAL BOARD
CONCRETE
SILICEOUS BASE
CARBONATE BASE
SAND-LIGHTWEIGHT BASE
75
75
4 hr
13 hr
50
2 hr
25
75
4 hr
50
25
3 hr.
2 hr.
25
1 hr
1 hr
1 hr.
0
0
25
4 hr.
50
3 hr
2 hr
50
75
0
25
100
50
75
100
25
50
75
100
THICKNESS OF CONCRETE BASE SLAB (mm)
STANDARD 3-PLY
BUILT-UP ROOFING
GLASS FIBER BOARD
(e)
THICKNESS OF
GLASS FIBER BOARD (mm)
CONCRETE
SAND LIGHTWEIGHT BASE
SILICEOUS BASE
CARBONATE BASE
75
75
75
50
3 hr.
2 hr.
25
25
0
75
100
25
125
1 hr.
0
0
50
2 hr.
1 hr.
1 hr.
25
4 hr.
3 hr.
2 hr.
25
50
4 hr.
50
4 hr.
3 hr.
50
75
100
125
25
50
75
100
125
THICKNESS OF CONCRETE BASE SLAB (mm)
FIGURE 4B.21.2.2.3(2)
FIRE-RESISTANCE RATINGS FOR CONCRETE ROOF ASSEMBLIES
TABLE 4B.21.2.3(1)
COVER THICKNESS FOR REINFORCED CONCRETE FLOOR OR ROOF SLABS (mm)
CONCRETE AGGREGATE TYPE
Siliceous
Carbonate
Sand-lightweight or lightweight
1
20
20
20
FIRE-RESISTANCE RATING (hours)
Restrained
Unrestrained
1½
2
3
4
1
1½
2
3
20
20
20
20
20
20
25
32
20
20
20
20
20
20
20
32
20
20
20
20
20
20
20
32
4
40
32
32
TABLE 4B.21.2.3(2)
COVER THICKNESS FOR PRESTRESSED CONCRETE FLOOR OR ROOF SLABS (mm)
CONCRETE AGGREGATE TYPE
Siliceous
Carbonate
Sand-lightweight or lightweight
SBC 801
1
20
20
20
FIRE-RESISTANCE RATING (hours)
Restrained
Unrestrained
1½
2
3
4
1
1½
2
3
20
20
20
20
30
40
45
60
20
20
20
20
25
35
40
55
20
20
20
20
25
35
40
50
2007
4
70
60
60
4/75
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
TABLE 4B.21.2.3(3)
MINIMUM COVER FOR MAIN REINFORCING BARS OF REINFORCED CONCRETE BEAMSc
(APPLICABLE TO ALL TYPES OF STRUCTURAL CONCRETE)
RESTRAINED OR
UNRESTRAINEDa
BEAM
WIDTHb (mm)
125
175
Restrained
� 250
125
175
Unrestrained
� 250
FIRE-RESISTANCE RATING (hours)
1½
2
3
1
a
4
20
20
20
20
20
20
20
20
20
25
20
20
32a
20
20
20
20
20
25
20
20
32
20
20
�
45
25
�
75
45
a. Tabulated values for restrained assemblies apply to beams spaced more than 1.2 m on center. For restrained beams
spaced 1.2 m or less on center, minimum cover of 20 mm is adequate for ratings of 4 hours or less.
b. For beam widths between the tabulated values, the minimum cover thickness can be determined by direct interpolation.
c. The cover for an individual reinforcing bar is the minimum thickness of concrete between the surface of the bar and the
fire-exposed surface of the beam. For beams in which several bars are used, the cover for corner bars used in the
calculation shall be reduced to one-half of the actual value. The cover for an individual bar must be not less than onehalf of the value given in Table 4B.21.2.3(3) nor less than 20 mm.
TABLE 4B.21.2.3(4)
MINIMUM COVER FOR PRESTRESSED CONCRETE BEAMS 200 mm
OR GREATER IN WIDTH
RESTRAINED OR
UNRESTRAINEDa
CONCRETE AGGREGATE
TYPE
Restrained
Carbonate or siliceous
Carbonate or siliceous
Sand lightweight
Sand lightweight
Unrestrained
BEAM
WIDTHb
(mm)
200
� 305
200
� 305
200
Carbonate or siliceous
Carbonate or siliceous
Sand lightweight
Sand lightweight
� 305
200
� 305
FIRE-RESISTANCE RATING
(hours)
1
1½
2
3
4
40
40
40
40
40
40
40
40
40
40
40
40
45a
40
40
40
65a
50a
50a
40a
40
40
40
40
45
40
40
40
65
50a
50
40
125c
65
85
50
�
75
�
65
a. Tabulated values for restrained assemblies apply to beams spaced more than 1.2 m on center. For restrained beams
spaced 1.2 m or less on center, minimum cover of 20 mm is adequate for 4-hour ratings or less.
b. For beam widths between 200 mm and 305 mm, minimum cover thickness can be determined by direct interpolation.
c. Not practical for 200 mm-wide beam but shown for purposes of interpolation.
SBC 801
2007
4/76
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
TABLE 4B.21.2.3(5)
MINIMUM COVER FOR PRESTRESSED CONCRETE BEAMS OF ALL WIDTHS
RESTRAINED OR
UNRESTRAINEDa
Restrained
Unrestrained
CONCRETE
AGGREGATE
TYPE
BEAM AREAb
A (square mm)
All
Carbonate or
siliceous
Sand lightweight
All
Carbonate or
siliceous
Sand lightweight
25,810 � A � 96,780
96M780 < A � 193,560
193,560 < A
96,780 < A
25,810 � A � 96,780
96,780 < A � 193,560
193,560 < A
96,780 < A
FIRE-RESISTANCE RATING
(hours)
1
1½
2
3
4
40
40
50
65
—
40
40
40
45
65
40
40
40
40
50
40
40
40
40
50
50
65
—
—
—
40
45
65
—
—
c
40
40
50
75
100c
100c
40
40
50
75c
a. Tabulated values for restrained assemblies apply to beams spaced more than 1.2 m on center. For restrained beams
spaced 1.2 m or less on center, minimum cover of 20 mm is adequate for 4-hour ratings or less.
b. The cross-sectional area of a stem is permitted to include a portion of the area in the flange, provided the width of the
flange used in the calculation does not exceed three times the average width of the stem.
c. U-shaped or hooped stirrups spaced not to exceed the depth of the member and having a minimum cover of 25 mm shall
be provided.
TABLE 4B.21.2.4
MINIMUM DIMENSION OF CONCRETE COLUMNS (mm)
TYPES OF
CONCRETE
FIRE-RESISTANCE RATING (hours)
1
1½
2a
3a
4b
Siliceous
200
230
250
305
355
Carbonate
200
230
250
280
305
Sand-lightweight
200
215
230
265
305
a.
b.
The minimum dimension is permitted to be reduced to 200 mm for rectangular columns
with two parallel sides at least 915 mm in length.
The minimum dimension is permitted to be reduced to 250 mm for rectangular columns
with two parallel sides at least 915 mm in length.
4B.21.2.4 Concrete columns. Concrete columns shall comply with this section.
4B.21.2.4.1 Minimum size. The minimum overall dimensions of reinforced concrete columns
for fire-resistance ratings of 1 hour to 4 hours shall comply with Table 4B.21.2.4.
4B.21.2.4.2 Minimum cover for R/C columns. The minimum thickness of concrete cover to
the main longitudinal reinforcement in columns, regardless of the type of
aggregate used in the concrete, shall not be less than 25 mm times the number of
hours of required fire resistance or 50 mm, whichever is less.
4B.21.2.4.3 Columns built into walls. The minimum dimensions of Table 4B.21.2.4 do not
apply to a reinforced concrete column that is built into a concrete or masonry wall
provided all of the following are met:
1. The fire-resistance rating for the wall is equal to or greater than the required
rating of the column;
2. The main longitudinal reinforcing in the column has cover not less than that
required by Section 4B.21.2.4.2; and
3. Openings in the wall are protected in accordance with Table 4B.15.4.
Where openings in the wall are not protected as required by Section 4B.15.4, the
minimum dimension of columns required to have a fire-resistance rating of 3 hours
or less shall be 200 mm, and 250 mm for columns required to have a fireSBC 801
2007
4/77
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
resistance rating of 4 hours, regardless of the type of aggregate used in the
concrete.
4B.21.2.4.4 Precast cover units for steel columns. See Section 4B.21.5.1.4.
4B.21.3
4B.21.3.1
4B.21.3.1.1
4B.21.3.1.2
4B.21.3.1.3
4B.21.3.1.4
4B.21.3.2
4B.21.3.2.1
4B.21.3.2.2
4B.21.3.2.3
SBC 801
Concrete masonry. The provisions of this section contain procedures by which
the fire-resistance ratings of concrete masonry are established by calculations.
Equivalent thickness. The equivalent thickness of concrete masonry construction
shall be determined in accordance with the provisions of this section.
Concrete masonry unit plus finishes. The equivalent thickness of concrete
masonry assemblies, Tea, shall be computed as the sum of the equivalent thickness
of the concrete masonry unit, Te, as determined by Section 4B.21.3.1.2,
4B.21.3.1.3, or 4B.21.3.1.4, plus the equivalent thickness of finishes, Tef,
determined in accordance with Section 4B.21.3.2:
Tea = Te + Tef
(Equation 4B.-6)
Te = Vn /LH = Equivalent thickness of concrete masonry unit (mm).
Where:
Vn = Net volume of masonry unit (mm3).
L = Specified length of masonry unit (mm).
H = Specified height of masonry unit (mm).
Ungrouted or partially grouted construction. Te shall be the value obtained for
the concrete masonry unit determined in accordance with ASTM C 140.
Solid grouted construction. The equivalent thickness, Te, of solid grouted
concrete masonry units is the actual thickness of the unit.
Airspaces and cells filled with loose-fill material. The equivalent thickness of
completely filled hollow concrete masonry is the actual thickness of the unit when
loose-fill materials are: sand, pea gravel, crushed stone, or slag that meet ASTM C
33 requirements; pumice, scoria, expanded shale, expanded clay, expanded slate,
expanded slag, expanded fly ash, or cinders that comply with ASTM C 331; or
perlite or vermiculite meeting the requirements of ASTM C 549 and ASTM C 516,
respectively.
Concrete masonry walls. The fire-resistance rating of walls and partitions
constructed of concrete masonry units shall be determined from Table 4B.21.3.2.
The rating shall be based on the equivalent thickness of the masonry and type of
aggregate used.
Finish on nonfire-exposed side. Where plaster or gypsum wallboard is applied to
the side of the wall not exposed to fire, the contribution of the finish to the total
fire-resistance rating shall be determined as follows: The thickness of gypsum
wallboard or plaster shall be corrected by multiplying the actual thickness of the
finish by applicable factor determined from Table 4B.21.2.1.4(1). This corrected
thickness of finish shall be added to the equivalent thickness of masonry and the
fire-resistance rating of the masonry and finish determined from Table 4B.21.3.2.
Finish on fire-exposed side. Where plaster or gypsum wallboard is applied to the
fire-exposed side of the wall, the contribution of the finish to the total fireresistance rating shall be determined as follows: The time assigned to the finish as
established by Table 4B.21.2.1.4(2) shall be added to the fire-resistance rating
determined in Section 4B.21.3.2 for the masonry alone, or in Section 4B.21.3.2.1
for the masonry and finish on the nonfire-exposed side.
Nonsymmetrical assemblies. For a wall having no finish on one side or having
different types or thicknesses of finish on each side, the calculation procedures of
this section shall be performed twice, assuming either side of the wall to be the
fire-exposed side. The fire-resistance rating of the wall shall not exceed the lower
of the two values calculated.
2007
4/78
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
Exception: For exterior walls with more than 1.5 m of horizontal separation, the
fire shall be assumed to occur on the interior side only.
4B.21.3.2.4 Minimum concrete masonry fire-resistance rating. Where the finish applied to
a concrete masonry wall contributes to its fire-resistance rating, the masonry alone
shall provide not less than one-half the total required fire-resistance rating.
4B.21.3.2.5 Attachment of finishes. Installation of finishes shall be as follows:
1. Gypsum wallboard and gypsum lath applied to concrete masonry or concrete
walls shall be secured to wood or steel furring members spaced not more than
405 mm on center (o.c.).
2. Gypsum wallboard shall be installed with the long dimension parallel to the
furring members and shall have all joints finished.
3. Other aspects of the installation of finishes shall comply with the applicable
provisions of this Chapter and Chapter 10 of the SBC 201.
TABLE 4B.21.3.2
MINIMUM EQUIVALENT THICKNESS (mm) OF BEARING OR NONBEARING
CONCRETE MASONRY WALLSa,b,c,d
FIRE-RESISTANCE RATING (hours)
TYPE OF
AGGREGATE
Pumice or expanded
slag
Expanded shale,
clay or slate
Limestone, cinders
or unexpanded slag
Calcareous or
siliceous gravel
½
¾
1
1¼
1½ 1¾
2
2¼ 2½ 2¾
40 50 55
65
70
75
80
85
45 55 65
75
85
85
90
95 100 105 110 115 120 125 130
50 60 70
80
85
95 100 110 115 120 125 130 140 145 150
50 60 70
80
90
100 105 115 120 125 135 140 145 150 160
90
3
3¼ 3½ 3¾
4
95 100 105 110 115 120
a. Values between those shown in the table can be determined by direct interpolation.
b. Where combustible members are framed into the wall, the thickness of solid material between the end of
each member and the opposite face of the wall, or between members set in from opposite sides, shall not be
less than 93 percent of the thickness shown in the table.
c. Requirements of ASTM C 55, ASTM C 73 or ASTM C 90 shall apply.
d. Minimum required equivalent thickness corresponding to the hourly fire-resistance rating for units with a
combination of aggregate shall be determined by linear interpolation based on the percent by volume of each
aggregate used in manufacture.
4B.21.3.3
4B.21.3.4
SBC 801
Multiwythe masonry walls. The fire-resistance rating of wall assemblies
constructed of multiple wythes of masonry materials shall be permitted to be based
on the fire-resistance rating period of each wythe and the continuous airspace
between each wythe in accordance with the following formula:
R A � �R10.59 � R20.59 � � � Rn0.59 � A1 � A2 � � � An � 1.7
(Equation 4B.-7)
Where:
RA = Fire endurance rating of the assembly (hours).
R1, R2, ..., Rn = Fire endurance rating of wythes for 1, 2, n (hours), respectively.
A1, A2, ...., An = 0.30, factor for each continuous airspace for 1, 2, ..., n,
respectively, having a depth of 13 mm or more between wythes.
Concrete masonry lintels. Fire-resistance ratings for concrete masonry lintels
shall be determined based upon the nominal width of the lintel and the minimum
thickness of concrete masonry or concrete, or any combination thereof, covering
the main reinforcing bars, as determined according to Table 4B.21.3.4, or by
approved alternate methods.
2007
4/79
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
TABLE 4B.21.3.4
MINIMUM COVER OF LONGITUDINAL REINFORCEMENT
IN FIRE-RESISTANCE-RATED REINFORCED
CONCRETE MASONRY LINTELS (mm)
FIRE-RESISTANCE RATING (hours)
1
2
3
4
40
50
—
—
40
40
45
75
40
40
40
45
NOMINAL WIDTH
OF LINTEL (mm)
150
200
250 or greater
4B.21.3.5
Concrete masonry columns. The fire-resistance rating of concrete masonry
columns shall be determined based upon the least plan dimension of the column in
accordance with Table 4B.21.3.5 or by approved alternate methods.
TABLE 4B.21.3.5
MINIMUM DIMENSION OF CONCRETE
MASONRY COLUMNS (mm)
FIRE-RESISTANCE RATING (hours)
1
2
3
4
200
250
305
355
Clay brick and tile masonry. The provisions of this section contain procedures
by which the fire-resistance ratings of clay brick and tile masonry are established
by calculations.
4B.21.4.1 Masonry walls. The fire-resistance rating of masonry walls shall be based upon
the equivalent thickness as calculated in accordance with this section. The
calculation shall take into account finishes applied to the wall and airspaces
between wythes in multi wythe construction.
4B.21.4.1.1 Equivalent thickness. The fire-resistance ratings of walls or partitions constructed
of solid or hollow clay masonry units shall be determined from Table 4B.21.4.1(1)
or 4B.21.4.1(2). The equivalent thickness of the clay masonry unit shall be
determined by Equation 4B.-8 when using Table 4B.21.4.1(1). The fire-resistance
rating determined from Table 4B.21.4.1(1) shall be permitted to be used in the
calculated fire-resistance rating procedure in Section 4B.21.4.2.
Te = Vn /LH
(Equation 4B.-8)
Where:
Te = The equivalent thickness of the clay masonry unit (mm).
Vn = The net volume of the clay masonry unit (mm3).
L = The specified length of the clay masonry unit (mm).
H = The specified height of the clay masonry unit (mm).
4B.21.4
4B.21.4.1.1.1
SBC 801
Hollow clay units. The equivalent thickness, Te, shall be the value obtained for
hollow clay units as determined in accordance with ASTM C67.
2007
4/80
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
TABLE 4B.21.4.1(1)
FIRE-RESISTANCE PERIODS OF CLAY MASONRY WALLS
MINIMUM REQUIRED EQUIVALENT
THICKNESS FOR FIRE RESISTANCEa,b,c (mm)
1 hour
2 hour
3 hour
4 hour
70
95
125
150
MATERIAL TYPE
Solid brick of clay or shaled
Hollow brick or tile of clay or shale,
unfilled
Hollow brick or tile of clay or shale,
grouted or filled with materials
specified in Section 4B.21.4.1.1.3
a.
b.
c.
d.
60
85
110
125
75
110
140
170
Equivalent thickness as determined from Section 4B.21.4.1.1.
Calculated fire resistance between the hourly increments listed shall be determined by linear
interpolation.
Where combustible members are framed in the wall, the thickness of solid material between the end
of each member and the opposite face of the wall, or between members set in from opposite sides,
shall not be less than 93 percent of the thickness shown.
For units in which the net cross-sectional area of cored brick in any plane parallel to the surface
containing the cores is at least 75 percent of the gross cross-sectional area measured in the same
plane.
TABLE 4B.21.4.1(2)
FIRE-RESISTANCE RATINGS FOR BEARING STEEL FRAME
BRICK VENEER WALLS OR PARTITIONS
WALL OR PARTITION
ASSEMBLY
Outside facing of steel studs:
13 mm wood fiberboard sheathing next to
studs, 20 mm airspace formed with 20 mm × 40
mm wood strips placed over the fiberboard and
secured to the studs; metal or wire lath nailed to
such strips, 95 mm brick veneer held in place
by filling 20 mm airspace between the brick
and lath with mortar. Inside facing of studs: 20
mm unsanded gypsum plaster on metal or wire
lath attached to 8 mm wood strips secured to
edges of the studs
Outside facing of steel studs:
25 mm insulation board sheathing attached to
studs, 25 mm airspace, and 95 mm brick veneer
attached to steel frame with metal ties every 5th
course. Inside facing of studs: 22 mm sanded
gypsum plaster (1:2 mix) applied on metal or
wire lath attached directly to the studs
Same as above except use 22 mm vermiculite—
gypsum plaster or 25 mm sanded gypsum
plaster (1:2 mix) applied to metal or wire
Outside facing of steel studs:
13 mm gypsum sheathing board, attached to
studs, and 95 mm brick veneer attached to steel
frame with metal ties every 5th course. Inside
facing of studs: 13 mm sanded gypsum plaster
(1:2 mix) applied to 13 mm perforated gypsum
lath securely attached to studs and having strips
of metal lath 75 mm wide applied to all
horizontal joints of gypsum lath
SBC 801
2007
PLASTER SIDE
EXPOSED
(hours)
BRICK FACED
SIDE EXPOSED
(hours)
1.5
4
1.5
4
2
4
2
4
4/81
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
Solid grouted clay units. The equivalent thickness of solid grouted clay masonry
units shall be taken as the actual thickness of the units.
4B.21.4.1.1.3 Units with filled cores. The equivalent thickness of the hollow clay masonry units
is the actual thickness of the unit when completely filled with loose-fill materials
of: sand, pea gravel, crushed stone, or slag that meet ASTM C 33 requirements;
pumice, scoria, expanded shale, expanded clay, expanded slate, expanded slag,
expanded fly ash, or cinders in compliance with ASTM C 331; or perlite or
vermiculite meeting the requirements of ASTM C 549 and ASTM C 516),
respectively.
4B.21.4.1.2 Plaster finishes. Where plaster is applied to the wall, the total fire-resistance
rating shall be determined by the formula:
R = (Rn0.59 + pl)1.7
(Equation 4B-9)
Where:
R
= The fire endurance of the assembly (hours).
Rn = The fire endurance of the individual wall (hours).
pl = Coefficient for thickness of plaster.
Values for Rn0.59 for use in Equation 4B-9 are given in Table 4B.21.4.1(3).
Coefficients for thickness of plaster shall be selected from Table 4B.21.4.1(4)
based on the actual thickness of plaster applied to the wall or partition and whether
one or two sides of the wall are plastered.
4B.21.4.1.3 Multiwythe walls with airspace. Where a continuous airspace separates multiple
wythes of the wall or partition, the total fire-resistance rating shall be determined
by the formula:
R = (R10.59 + R20.59 + ....+ Rn0.59 + as )1.7
(Equation 4B-10)
Where:
R
= The fire endurance of the assembly (hours).
R1, R2 and Rn = The fire endurance of the individual wall (hours).
as = Coefficient for continuous airspace.
Values for Rn0.59 for use in Equation 4B-10 are given in Table 4B.21.4.1(3). The
coefficient for each continuous airspace of 13 mm to 90 mm separating two
individual wythes shall be 0.3.
4B.21.4.1.4 Nonsymmetrical assemblies. For a wall having no finish on one side or having
different types or thicknesses of finish on each side, the calculation procedures of
this section shall be performed twice, assuming either side to be the fire-exposed
side of the wall. The fire resistance of the wall shall not exceed the lower of the
two values determined.
Exception: For exterior walls with more than 1.5 m of horizontal separation, the
fire shall be assumed to occur on the interior side only.
4B.21.4.1.1.2
TABLE 4B.21.4.1(3)
VALUES OF Rn0.59
SBC 801
Rn0.59
R (hours)
1
1.0
2
1.50
3
1.91
4
2.27
2007
4/82
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
TABLE 4B.21.4.1(4)
COEFFICIENTS FOR PLASTER, pl a
a.
THICKNESS OF PLASTER
(mm)
13
ONE SIDE
0.3
TWO SIDE
0.6
16
0.37
0.75
20
0.45
Values listed in table are for 1:3 sanded gypsum plaster.
0.90
TABLE 4B.21.4.1(5)
REINFORCED MASONRY LINTELS
NOMINAL LINTEL
WIDTH (mm)
MINIMUM LONGITUDINAL REINFORCEMENT
COVER FOR FIRE RESISTANCE (mm)
1 hour
2 hour
3 hour
4 hour
150
40
50
NP
NP
200
40
40
45
75
40
40
40
45
250 or more
NP = Not permitted.
TABLE 4B.21.4.1(6)
REINFORCED CLAY MASONRY COLUMNS
FIRE-RESISTANCE RATING
(hour)
COLUMN SIZE
1
2
3
4
Minimum column dimension (mm)
4B.21.4.2
200
250
305
355
Multiwythe walls. The fire-resistance rating for walls or partitions consisting of
two or more dissimilar wythes shall be permitted to be determined by the formula:
�
R � R10.59 � R20.59 � � � Rn0.59
�
1.7
(Equation 4B.-11)
Where:
R = The fire endurance of the assembly (hours).
R1, R2 and Rn = The fire endurance of the individual wall (hours).
Values for Rn0.59 for use in Equation 4B.-11 are given in Table 4B.21.4.1(3).
4B.21.4.2.1 Multiwythe walls of different material. For walls that consist of two or more
wythes of different materials (concrete or concrete masonry units) in combination
with clay masonry units, the fire-resistance rating of the different materials shall
be permitted to be determined from Table 4B.21.2.1.1 for concrete; Table
4B.21.3.2 for concrete masonry units or Table 4B.21.4.1(1) or 4B.21.4.1(2) for
clay brick and tile masonry units.
4B.21.4.3 Reinforced clay masonry lintels. Fire-resistance ratings for clay masonry lintels
shall be determined based on the nominal width of the lintel and the minimum
covering for the longitudinal reinforcement in accordance with Table 4B.21.4.1(5).
4B.21.4.4 Reinforced clay masonry columns. The fire-resistance ratings shall be
determined based on the least plan dimension of the column in accordance with
Table 4B.21.4.1(6). The minimum cover for longitudinal reinforcement shall be 50
mm.
4B.21.5
SBC 801
Steel assemblies. The provisions of this section contain procedures by which the
fire-resistance ratings of steel assemblies are established by calculations.
2007
4/83
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
Structural steel columns. The fire-resistance ratings of steel columns shall be
based on the size of the element and the type of protection provided in accordance
with this section.
4B.21.5.1.1 General. These procedures establish a basis for determining the fire resistance of
column assemblies as a function of the thickness of fire-resistant material and, the
weight, W, and heated perimeter, D, of steel columns. As used in these sections, W
is the average weight of a structural steel column in kilograms per linear meter.
The heated perimeter, D, is the inside perimeter of the fire-resistant material in
millimeters as illustrated in Figure 4B.21.5.1(1).
4B.21.5.1.1.1 Nonload-bearing protection. The application of these procedures shall be limited
to column assemblies in which the fire-resistant material is not designed to carry
any of the load acting on the column.
4B.21.5.1.1.2 Embedments. In the absence of substantiating fire-endurance test results, ducts,
conduit, piping, and similar mechanical, electrical, and plumbing installations shall
not be embedded in any required fire-resistant materials.
4B.21.5.1.1.3 Weight-to-perimeter ratio. Table 4B.21.5.1(1) contains weight-to-heatedperimeter ratios (W/D) for both contour and box fire-resistant profiles, for some
wide flange shapes.
For different fire-resistant protection profiles or column cross sections, the weightto-heated-perimeter ratios (W/D) shall be determined in accordance with the
definitions given in this section.
4B.21.5.1
FIGURE 4B.21.5.1(1)
DETERMINATION OF THE HEATED PERIMETER OF STRUCTURAL
STEEL COLUMNS
4B.21.5.1.2 Gypsum wallboard protection. The fire resistance of structural steel columns
with weight to-heated-perimeter ratios (W/D) less than or equal to 0.214 and which
are protected with Type X gypsum wallboard shall be permitted to be determined
from the following expression:
� h�W ' / D � �
�
� 2.976 �
R = 130 �
Where:
=
R
=
H
=
D
W’ =
0.75
(Equation 4B.-12)
Fire resistance (minutes).
Total thickness of gypsum wallboard (mm).
Heated perimeter of the structural steel column (mm).
Total weight of the structural steel column and gypsum wallboard
protection (kilogram per linear meter).
W’ = W + 800hD/106.
Alternatively, the determination of the fire resistance of structural steel columns
from Figure 4B.21.5.1(4) is permitted for various thicknesses of gypsum
wallboard as a function of the weight-to-heated-perimeter ratio (W/D) of the
column.
SBC 801
2007
4/84
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
For structural steel columns with weight-to-heated-perimeter ratios (W/D) greater
than 0.21, the thickness of gypsum wallboard required for specified fire-resistance
ratings shall be the same as the thickness determined for a wide flange shape with
W/D equals to 0.21.
4B.21.5.1.2.1 Attachment. The gypsum wallboard shall be supported as illustrated in either
Figure 4B.21.5.1(2) for fire-resistance ratings of 4 hours or less, or Figure
4B.21.5.1(3) for fire-resistance ratings of 3 hours or less.
4B.21.5.1.2.2 Gypsum wallboard equivalent to concrete. The determination of the fire
resistance of structural steel columns from Figure 4B.21.5.1(4) is permitted for
various thicknesses of gypsum wallboard as a function of the weight-to-heatedperimeter ratio (W/D) of the column. For structural steel columns with weight-toheated-perimeter ratios (W/D) greater than 0.21, the thickness of gypsum
wallboard required for specified fire-resistance ratings shall be the same as the
thickness determined for a wide flange shape with W/D equals to 0.21.
4B.21.5.1.3 Spray-applied fire-resistant materials. The fire resistance of wide-flange
structural steel columns protected with spray-applied fire-resistant materials, as
illustrated in Figure 4B.21.5.1(5), shall be permitted to be determined from the
following expression:
R = [ C1 (W / D) + C2 ] h
(Equation 4B.-13)
Where:
R
= Fire resistance (minutes
h
= Thickness of spray-applied fire-resistant material (mm)
D
= Heated perimeter of the structural steel column (mm)
C1 and C2 = Material-dependent constants
W
= Weight of structural steel column (kilograms per linear meter)
FIGURE 4B.21.5.1(2)
GYPSUM WALLBOARD PROTECTED STRUCTURAL STEEL COLUMNS WITH
SHEET STEEL COLUMN COVERS
SBC 801
2007
4/85
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
1.
2.
3.
Structural steel column, either wide flange or tubular shapes.
Type X gypsum wall board in accordance with ASTM C 36). For single-layer applications, the
wallboard shall be applied vertically with no horizontal joints. For multiple-layer applications,
horizontal joints are permitted at a minimum spacing of 2.4 m, provided that the joints in
successive layers are staggered at least 305 mm. The total required thickness of wallboard shall
be determined on the basis of the specified fire-resistance rating and the weight-to-heatedperimeter ratio (W/D) of the column. For fire-resistance ratings of 2 hours or less, one of the
required layers of gypsum wallboard may be applied to the exterior of the sheet steel column
covers with 25 mm long Type S screws spaced 25 mm from the wallboard edge and 200 mm
on center. For such installations, 0.38-mm minimum thickness galvanized steel corner beads
with 40 mm legs shall be attached to the wallboard with Type S screws spaced 305 mm on
center.
For fire-resistance ratings of 3 hours or less, the column covers shall be fabricated from 0.6mm minimum thickness galvanized or stainless steel. For 4-hour fire-resistance ratings, the
column covers shall be fabricated from 0.6-mm minimum thickness stainless steel. The
column covers shall be erected with the Snap Lock or Pittsburgh joint details. For fireresistance ratings of 2 hours or less, column covers fabricated from 0.68-mm minimum
thickness galvanized or stainless steel shall be permitted to be erected with lap joints. The lap
joints shall be permitted to be located anywhere around the perimeter of the column cover. The
lap joints shall be secured with 13 mm-long No. 8 sheet metal screws spaced 305 mm on
center. The column covers shall be provided with a minimum expansion clearance of 10 mm
per linear meter between the ends of the cover and any restraining construction.
Material-dependent constants. The material-dependent constants, C1 and C2,
shall be determined for specific fire-resistant materials on the basis of standard fire
endurance tests in accordance with Section 4B.3.2. Unless evidence is submitted to
the building official substantiating a broader application, this expression shall be
limited to determining the fire resistance of structural steel columns with weightto-heated-perimeter ratios (W/D) between the largest and smallest columns for
which standard fire-endurance test results are available.
4B.21.5.1.3.2 Spray-applied identification. Spray-applied fire-resistant materials shall be
identified by density and thickness required for a given fire-resistance rating.
4B.21.5.1.4 Concrete-protected columns. The fire resistance of structural steel columns
protected with concrete, as illustrated in Figure 4B.21.5.1(6) (a) and (b), shall be
permitted to be determined from the following expression:
4B.21.5.1.3.1
R = Ro (1 + 0.03m)
(Equation 4B.-14)
where:
Ro = 73 (W/D)0.7 + 0.107 × (h1.6/kc0.2) × (1 + 30784 (H/pccch (L + h))0.8)
As used in these expressions:
R
= Fire endurance at equilibrium moisture conditions (minutes)
Ro = Fire endurance at zero moisture content (minutes)
M = Equilibrium moisture content of the concrete by volume (percent)
W = Average weight of the steel column (kilograms per linear meter)
D
= Heated perimeter of the steel column (mm)
H
= Thickness of the concrete cover (mm)
kc
= Ambient temperature thermal conductivity of the concrete (Watt/m.�K)
H
= Ambient temperature thermal capacity of the steel column = 0.46W (kJ/m.�K)
pc = Concrete density (kg/m3)
cc
= Ambient temperature specific heat of concrete (kJ/kg.�K)
L
= Interior dimension of one side of a square concrete box protection (mm)
SBC 801
2007
4/86
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
FIGURE 4B.21.5.1(3)
GYPSUM WALLBOARD PROTECTED STRUCTURAL STEEL COLUMNS WITH STEEL
STUD/SCREW ATTACHMENT SYSTEM
1.
2.
3.
4.
5.
6.
7.
SBC 801
Structural steel column, either wide flange or tubular shapes.
40 mm deep studs fabricated from 0.45-mm minimum thickness galvanized steel with 35 mm or 37 mm
legs. The length of the steel studs shall be 13 mm less than the height of the assembly.
Type X gypsum wall board in accordance with ASTM C 36). For single-layer applications, the wallboard
shall be applied vertically with no horizontal joints. For multiple-layer applications, horizontal joints are
permitted at a minimum spacing of 2.4 m, provided that the joints in successive layers are staggered at
least 305 mm. The total required thickness of wallboard shall be determined on the basis of the specified
fire-resistance rating and the weight-to-heated-perimeter ratio (W/D) of the column.
Galvanized 0.38-mm minimum thickness steel corner beads with 40 mm legs attached to the wallboard
with 25 mm-long Type S screws spaced 305 mm on center.
1.3 mm (No. 18 SWG) steel tie wires spaced 610 mm on center.
Sheet metal angles with 50 mm legs fabricated from 0.56-mm minimum thickness galvanized steel.
Type S screws, 25 mm long, shall be used for attaching the first layer of wallboard to the steel studs and
the third layer to the sheet metal angles at 610 mm on center. Type S screws 45 mm long shall be used
for attaching the second layer of wallboard to the steel studs and the fourth layer to the sheet metal angles
at 305 mm on center. Type S screws 60 mm long shall be used for attaching the third layer of wallboard
to the steel studs at 305 mm on center.
2007
4/87
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
FIGURE 4B.21.5.1(4)
FIRE RESISTANCE OF STRUCTURAL STEEL COLUMNS PROTECTED WITH VARIOUS
THICKNESSES OF TYPE X GYPSUM WALLBOARD
a.
The W/D ratios for typical wide flange columns are listed in Table 4B.21.5.1(1). For other column
shapes, the W/D ratios shall be determined in accordance with Section 4B.21.5.1.1.
FIGURE 4B.21.5.1(5)
WIDE FLANGE STRUCTURAL STEEL COLUMNS WITH
SPRAY-APPLIED FIRE-RESISTANT MATERIALS
SBC 801
2007
4/88
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
FIGURE 4B.21.5.1(6)
CONCRETE PROTECTED STRUCTURAL STEEL COLUMNSa,b
a.
When the inside perimeter of the concrete protection is not square, L shall be taken as the
average of L1 and L2. When the thickness of concrete cover is not constant, h shall be taken as
the average of h1 and h2.
b. Joints shall be protected with a minimum 25 mm thickness of ceramic fiber blanket but in no
case less than one-half the thickness of the column cover (see Section 4B.21.2.1.3).
4B.21.5.1.4.1
Reentrant space filled. For wide-flange steel columns completely encased in
concrete with all reentrant spaces filled [Figure 4B.21.5.1(6)(c)], the thermal
capacity of the concrete within the reentrant spaces shall be permitted to be added
to the thermal capacity of the steel column, as follows:
H = 0.46W + 1 × 10-6 pccc (bfd � As)
(Equation 4B.-15)
Where:
bf = Flange width of the steel column (mm)
d = Depth of the steel column (mm)
As = Cross-sectional area of the steel column (square mm)
4B.21.5.1.4.2 Concrete properties unknown. If specific data on the properties of concrete are
not available, the values given in Table 4B.21.5.1(2) are permitted.
4B.21.5.1.4.3 Minimum concrete cover. For structural steel column encased in concrete with all
reentrant spaces filled, Figure 4B.21.5.1(6)(c) and Tables 4B.21.5.1(7) and
4B.21.5.1(8) indicate the thickness of concrete cover required for various fireresistance ratings for typical wide-flange sections. The thicknesses of concrete
indicated in these tables also apply to structural steel columns larger than those
listed.
4B.21.5.1.4.4 Minimum precast concrete cover. For structural steel columns protected with
precast concrete column covers as shown in Figure 4B.21.5.1(6)(a), Tables
4B.21.5.1(9) and 4B.21.5.1(10) indicate the thickness of the column covers
required for various fire-resistance ratings for typical wide-flange shapes. The
thicknesses of concrete given in these tables also apply to structural steel columns
larger than those listed.
4B.21.5.1.4.5 Masonry protection. The fire resistance of structural steel columns protected with
concrete masonry units or clay masonry units as illustrated in Figure 4B.21.5.1(7),
shall be permitted to be determined from the following expression:
R = 1.24 (W/D)0.7 + [0.0018 (Te1.6/km0.2) ] �
[1.0 + 392.76 { (As/dm Te) / (0.25p + Te) }0.8 ]
SBC 801
2007
(Equation 4B.-16)
4/89
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
Where:
=
R
W =
=
D
Te =
km
=
As
dm
P
=
=
=
Fire-resistance rating of column assembly (hours).
Average weight of steel column (kg/m3).
Heated perimeter of steel column (mm) [see Figure 4B.21.5.1(7)].
Equivalent thickness of concrete or clay masonry unit (mm) (see Table
4B.21.3.2 Note a or Section 4B.21.4.1).
Thermal conductivity of concrete or clay masonry unit (Watt/m.�K) [see
Table 4B.21.5.1(3)].
Cross-sectional area of steel column (square mm).
Density of the concrete or clay masonry unit (kg/m3).
Inner perimeter of concrete or clay masonry protection (mm) [see
Figure 4B.21.5.1(7)].
4B.21.5.1.4.6 Equivalent masonry thickness. For structural steel columns protected with
concrete masonry, Table 4B.21.5.1(5) gives the equivalent thickness of concrete
masonry required for various fire-resistance ratings for typical column shapes. For
structural steel columns protected with clay masonry, Table 4B.21.5.1(6) gives the
equivalent thickness of clay masonry required for various fire-resistance ratings
for typical column shapes.
FIGURE 4B.21.5.1(7)
CONCRETE OR CLAY MASONRY PROTECTED STRUCTURAL STEEL COLUMNS
d
=
tweb =
w =
SBC 801
Depth of a wide flange column, outside diameter of pipe column, or outside dimension of structural tubing column
(mm).
Thickness of web of wide flange column (mm).
Width of flange of wide flange column or outside dimension of structural tubing column (mm).
2007
4/90
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
TABLE 4B.21.5.1(1)
W/D RATIOS FOR STEEL COLUMNS
in. ×lb/ft
mm×kg/m
kg/m
Area
As
mm2
mm
mm
mm
mm
Contour
Profile
kg/m/mm
W14×233
W360×347
347
44200
407
27.2
404
43.7
0.146
0.214
W14×211
W360×314
314
39900
399
24.9
401
39.6
0.133
0.196
W14×193
W360×287
287
36600
393
22.6
399
36.6
0.123
0.181
W14×176
W360×262
262
33500
387
21.1
398
33.3
0.113
0.167
W14×159
W360×237
237
30100
380
18.9
395
30.2
0.103
0.153
W14×145
W360×216
216
27600
375
17.3
394
27.7
0.094
0.140
W14×82
W360×122
122
15500
363
13
257
21.7
0.071
0.098
W14×68
W360×101
101
12900
357
10.5
255
18.3
0.059
0.083
W14×53
W360×79
79
10100
354
9.4
205
16.8
0.052
0.071
W14×43
W360×64
64
8140
347
7.7
203
13.5
0.043
0.058
W12×190
W310×283
283
36000
365
26.9
322
44.1
0.144
0.206
W12×170
W310×253
253
32200
356
24.4
319
39.6
0.130
0.187
W12×152
W310×226
226
28900
348
22.1
317
35.6
0.118
0.170
W12×136
W310×202
202
25800
341
20.1
315
31.8
0.106
0.154
W12×72
W310×107
107
13600
311
10.9
306
17
0.059
0.087
W12×58
W310×86
86
11000
310
9.1
254
16.3
0.053
0.076
W12×50
W310×74
74
9490
310
9.4
205
16.3
0.052
0.072
W12×40
W310×60
60
7590
303
7.5
203
13.1
0.043
0.059
W10×112
W250×167
167
21300
289
19.2
265
31.8
0.104
0.151
W10×100
W250×149
149
19000
282
17.3
263
28.4
0.094
0.137
W10×88
W250×131
131
16700
275
15.4
261
25.1
0.084
0.122
W10×77
W250×115
115
14600
269
13.5
259
22.1
0.074
0.109
W10×68
W250×101
101
12900
264
11.9
257
19.6
0.066
0.097
W10×54
W250×80
80
10200
256
9.4
255
15.6
0.053
0.078
W10×45
W250×67
67
8550
275
8.9
204
15.7
0.050
0.070
W10×33
W250×49.1
49.1
6250
247
7.4
202
11
0.038
0.055
W8×40
W200×59
59
7560
210
9.1
205
14.2
0.048
0.071
W8×35
W200×52
52
6660
206
7.9
204
12.6
0.043
0.063
W8×31
W200×46.1
46.1
5860
203
7.2
203
11.8
0.038
0.057
W8×28
W200×41.7
41.7
5310
205
7.2
166
11.8
0.039
0.056
W8×24
W200×35.9
35.9
4580
201
6.2
165
10.2
0.034
0.049
W8×18
W200×26.6
26.6
3390
207
5.8
133
8.4
0.028
0.039
Shape Designation
Weight
d
tw
bf
tf
Box
Profile
kg/m/mm
TABLE 4B.21.5.1(2)
PROPERTIES OF CONCRETE
PROPERTY
Thermal conductivity (kc)
Specific heat (cc)
Density (Pc)
Equilibrium (free) moisture content
(m) by volume
SBC 801
NORMAL WEIGHT
CONCRETE
STRUCTURAL
LIGHTWEIGHT CONCRETE
0.84 kJ/kg · K
0.84 kJ/kg · oK
1.64 Watt/m · oK
o
2400 kg/m3
4%
2007
0.61 Watt/m · oK
1750 kg/m3
5%
4/91
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
TABLE 4B.21.5.1(3)
THERMAL CONDUCTIVITY OF CONCRETE OR CLAY MASONRY UNITS
DENSITY (dm) OF UNITS
THERMAL CONDUCTIVITY (km)
(kg/m3)
OF UNITS (Watt/m · oK)
Concrete Masonry Units
1280
0.358
1360
0.395
1440
0.436
1520
0.481
1600
0.533
1680
0.588
1760
0.651
1840
0.720
1920
0.794
2000
0.879
2080
0.971
2160
1.073
2240
1.186
2320
1.312
2400
1.449
Clay Masonry Units
1920
2080
2.16
3.89
TABLE 4B.21.5.1(4)
WEIGHT-TO-HEATED-PERIMETER RATIOS (W/D) FOR TYPICAL WIDE FLANGE
BEAM AND GIRDER SHAPES
Shape Designation
in.×lb/ft
mm×kg/m
W36×300
W36×280
W36×260
W36×245
W36×230
W33×241
W33×221
W33×201
W33×152
W30×211
W30×191
W30×173
W30×132
W920×446
W920×417
W920×387
W920×365
W920×342
W840×359
W840×329
W840×299
W840×226
W760×314
W760×284
W760×257
W760×196
SBC 801
weight
kg/m
446
417
387
365
342
359
329
299
226
314
284
257
196
Area
As
mm2
57000
53300
49300
46400
43600
45800
42000
38100
28900
40100
36200
32600
25100
Depth
d
mm
933
928
921
916
912
868
862
855
851
786
779
773
770
2007
tw
mm
24
22.5
21.3
20.3
19.3
21.1
19.7
18.2
16.1
19.7
18
16.6
15.6
Width
bf
mm
423
422
420
419
418
403
401
400
294
384
382
381
268
tf
mm
42.7
39.9
36.6
34.3
32
35.6
32.4
29.2
26.8
33.4
30.1
27.1
25.4
Contour
Profile
kg/m/mm
0.144
0.136
0.126
0.120
0.113
0.124
0.114
0.104
0.089
0.117
0.106
0.097
0.085
Box
Profile
kg/m/mm
0.195
0.183
0.171
0.162
0.153
0.168
0.155
0.142
0.113
0.161
0.146
0.133
0.108
4/92
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
TABLE 4B.21.5.1(5)
FIRE RESISTANCE OF CONCRETE MASONRY PROTECTED STEEL COLUMNS
Shape Designation
in. x lb/ft
W14×82
W14×68
W14×53
W14×43
W12×72
W12×58
W12×50
W12×40
W10×68
W10×54
W10×45
SBC 801
mm x kg/m
W360×122
W360×101
W360×79
W360×64
W310×107
W310×86
W310×74
W310×60
W250×101
W250×80
W250×67
W/D
kg/m/mm
0.09839
0.08252
0.07066
0.05818
0.08671
0.07624
0.07184
0.05929
0.09693
0.07828
0.06994
Concrete
Masonry
Density
(kg/m3)
Minimum Required Equivalent Thickness
For Fire-resistance Rating of Concrete
Masonry Protection Assembly Te (mm)
1-hour
2-hour
3-hour
4-hour
1280
18
39
58
75
1600
22
46
66
84
1760
24
49
70
89
1920
26
52
74
93
1280
21
42
61
79
1600
25
49
69
88
1760
27
52
73
92
1920
28
55
77
97
1280
23
45
65
82
1600
27
52
72
91
1760
29
54
76
95
1920
31
57
80
99
1280
25
48
68
86
1600
29
55
76
94
1760
31
57
79
98
1920
33
60
83
102
1280
20
42
61
78
1600
24
48
69
87
1760
26
51
72
92
1920
28
54
76
96
1280
22
44
63
81
1600
26
50
71
90
1760
28
53
75
94
1920
30
56
78
98
1280
23
45
65
82
1600
27
51
72
91
1760
29
54
76
95
1920
31
57
80
100
1280
25
49
68
86
1600
29
55
76
95
1760
31
57
79
99
1920
33
60
83
103
1280
19
40
59
76
1600
23
47
67
86
1760
25
50
71
90
1920
27
53
75
94
1280
22
44
63
81
1600
26
50
71
90
1760
28
53
75
94
1920
30
56
79
98
1280
23
46
66
83
1600
27
52
73
92
1760
29
55
77
96
1920
31
58
80
100
2007
4/93
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
TABLE 4B.21.5.1(5) – Continued
FIRE RESISTANCE OF CONCRETE MASONRY PROTECTED STEEL COLUMNS
Shape Designation
in. x lb/ft
W10×33
W8×40
W8×31
W8×24
W8×18
mm x kg/m
W250�49.1
W200�59
W200�46.1
W200�35.9
W200�26.6
W/D
kg/m/mm
0.05468
0.07108
0.05677
0.04904
0.03912
Concrete
Masonry
Density
(kg/m3)
Minimum Required Equivalent Thickness
For Fire-resistance Rating of Concrete
Masonry Protection Assembly Te (mm)
1-hour
2-hour
3-hour
4-hour
1280
27
50
70
88
1600
31
56
77
96
1760
32
59
81
100
1920
34
62
84
104
1280
23
46
66
84
1600
27
53
74
93
1760
29
55
77
97
1920
31
58
81
101
1280
26
50
70
88
1600
30
56
77
96
1760
32
59
81
100
1920
34
61
84
104
1280
28
52
72
90
1600
32
58
80
99
1760
34
61
83
102
1920
36
63
86
106
1280
31
55
76
94
1600
35
61
82
101
1760
36
63
85
105
1920
38
66
89
109
Note: Tabulated values assume 25-mm air gap between masonry and steel section.
SBC 801
2007
4/94
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
TABLE 4B.21.5.1(6)
FIRE RESISTANCE OF CLAY MASONRY PROTECTED STEEL COLUMNS
Shape Designation
W/D
kg/m/mm
Concrete
Masonry
Density
(kg/m3)
Minimum Required Equivalent Thickness For
Fire-Resistance Rating of Concrete Masonry
Protection Assembly, Te (mm)
1-hour
2-hour
3-hour
4-hour
in. x lb/ft
mm x kg/m
W14×82
W360×122
0.09839
1920
2080
31
35
61
68
86
96
108
120
W14×68
W360×101
0.08252
1920
2080
34
38
64
71
89
99
112
123
W14×53
W360×79
0.07066
1920
2080
36
41
67
74
92
102
115
126
W14×43
W360×64
0.05818
1920
2080
39
43
70
77
95
105
118
129
W12×72
W310×107
0.08671
1920
2080
33
38
63
71
89
98
111
122
W12×58
W310×86
0.07624
1920
2080
35
40
66
73
91
101
114
125
W12×50
W310×74
0.07184
1920
2080
36
40
67
74
92
102
115
126
W12×40
W310×60
0.05929
W10×68
W250×101
0.09693
1920
2080
1920
2080
39
43
32
36
70
77
62
69
96
105
87
97
118
129
110
121
W10×54
W250×80
0.07828
1920
2080
35
40
66
73
91
101
114
125
W10×45
W250×67
0.06994
1920
2080
37
41
68
75
93
103
116
127
W10×33
W250×49.1
0.05468
1920
2080
40
45
71
79
97
106
120
131
W8×40
W200×59
0.07108
1920
2080
37
41
68
75
94
103
116
128
W8×31
W200×46.1
0.05677
1920
2080
40
45
71
78
97
106
120
131
W8×24
W200×35.9
0.04904
1920
2080
42
46
73
80
99
108
122
133
W8×18
W200×26.6
0.03912
1920
44
76
102
124
2080
49
83
111
135
Note: Tabulated values assume 25-mm air gap between masonry and steel section.
SBC 801
2007
4/95
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
TABLE 4B.21.5.1(7)
MINIMUM COVER (mm) FOR STEEL COLUMNS ENCASED IN
NORMAL-WEIGHT CONCRETEa [FIGURE 4B.21.5.1(6)(c)]
Shape Designation
W/D
Fire-Resistance Rating (hours)
in. x lb/ft
mm x kg/m
kg/m/mm
1
1.5
2
3
4
W14×233
W360�347
0.146
25
25
25
40
55
W14×211
W360�314
0.133
25
25
25
40
55
W14×193
W360�287
0.123
25
25
25
40
55
W14×176
W360�262
0.113
25
25
25
40
55
W14×159
W360�237
0.103
25
25
25
40
60
W14×145
W360�216
0.094
25
25
25
45
60
W12×190
W310�283
0.144
25
25
25
45
60
W12×170
W310�253
0.130
25
25
25
45
60
W12×152
W310�226
0.118
25
25
30
45
60
W12×136
W310�202
0.106
25
25
30
45
65
W10×112
W250�167
0.104
25
25
30
50
70
W10×100
W250�149
0.094
25
25
35
50
70
W10×88
W250�131
0.084
25
25
35
55
70
W10×77
W250�115
0.074
25
25
35
55
70
W8×35
W200�52
0.043
25
30
45
65
85
W8×28
W200�41.7
0.039
25
35
45
70
90
W8×24
W200�35.9
0.034
25
35
45
70
90
W8×18
W200�26.6
0.028
25
40
50
70
95
a. The tabulated thicknesses are based upon the assumed properties of normalweight concrete given in Table 4B.21.5.1(2).
TABLE 4B.21.5.1(8)
MINIMUM COVER (mm) FOR STEEL COLUMNS ENCASED IN STRUCTURAL
LIGHTWEIGHT CONCRETEa [FIGURE 4B.21.5.1(6)(c)]
in. x lb/ft
mm x kg/m
W/D
kg/m/mm
W14×233
W360�347
W14×211
W360�314
W14×193
Shape Designation
1
1.5
2
3
4
0.146
25
25
25
30
40
0.133
25
25
25
30
40
W360�287
0.123
25
25
25
30
40
W14×176
W360�262
0.113
25
25
25
30
40
W14×159
W360�237
0.103
25
25
25
30
45
W14×145
W360�216
0.094
25
25
25
30
45
W12×190
W310�283
0.144
25
25
25
30
45
W12×170
W310�253
0.130
25
25
25
30
45
W12×152
W310�226
0.118
25
25
25
35
45
W12×136
W310�202
0.106
25
25
25
35
45
W10×112
W250�167
0.104
25
25
25
40
50
W10×100
W250�149
0.094
25
25
25
40
55
W10×88
W250�131
0.084
25
25
25
40
55
W10×77
W250�115
0.074
25
25
25
40
55
W8×35
W200�52
0.043
25
25
35
50
65
W8×28
W200�41.7
0.039
25
25
35
55
70
W8×24
W200�35.9
0.034
25
30
35
55
70
W200�26.6
0.028
25
30
40
60
75
W8×18
a.
SBC 801
Fire-Resistance Rating (hours)
The tabulated thicknesses are based upon the assumed properties of structural
lightweight concrete given in Table 4B.21.5.1(2).
2007
4/96
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
TABLE 4B.21.5.1(9)
MINIMUM COVER (mm) FOR STEEL COLUMNS IN NORMAL-WEIGHT
PRECAST COVERSa [FIGURE 4B.21.5.1(6)(a)]
Shape Designation
a.
Fire-Resistance Rating (hours)
in. � lb/ft
mm�kg/m
W/D
kg/m/mm
1
1.5
2
3
4
W14×233
W360�347
0.146
40
40
40
60
80
W14×211
W360�314
0.133
40
40
40
60
80
W14×193
W360�287
0.123
40
40
40
65
85
W14×176
W360�262
0.113
40
40
45
65
85
W14×159
W360�237
0.103
40
40
45
70
90
W14×145
W360�216
0.094
40
40
50
70
90
W12×190
W310�283
0.144
40
40
40
60
80
W12×170
W310�253
0.130
40
40
40
65
85
W12×152
W310�226
0.118
40
40
45
65
85
W12×136
W310�202
0.106
40
40
45
70
90
W10×112
W250�167
0.104
40
40
45
70
90
W10×100
W250�149
0.094
40
40
50
70
90
W10×88
W250�131
0.084
40
40
50
75
95
W10×77
W250�115
0.074
40
40
55
75
95
W8×35
W200�52
0.043
40
50
65
85
110
W8×28
W200�41.7
0.039
40
50
65
90
110
W8×24
W200�35.9
0.034
40
55
65
90
110
W8×18
W200�26.6
0.028
40
55
70
95
115
The tabulated thicknesses are based upon the assumed properties of
normal- weight concrete given in Table 4B.21.5.1(2).
TABLE 4B.21.5.1(10)
MINIMUM COVER (mm) FOR STEEL COLUMNS IN STRUCTURAL
LIGHTWEIGHT PRECAST COVERSa [FIGURE 4B.21.5.1(6)(a)]
Shape Designation
a.
SBC 801
in. � lb/ft
mm�kg/m
W/D
kg/m/mm
W14×233
W360�347
W14×211
W14×193
Fire-Resistance Rating (hours)
1
1.5
2
3
4
0.146
40
40
40
40
60
W360�314
0.133
40
40
40
45
60
W360�287
0.123
40
40
40
45
65
W14×176
W360�262
0.113
40
40
40
50
65
W14×159
W360�237
0.103
40
40
40
50
65
W14×145
W360�216
0.094
40
40
40
55
70
W12×190
W310�283
0.144
40
40
40
45
60
W12×170
W310�253
0.130
40
40
40
45
60
W12×152
W310�226
0.118
40
40
40
50
65
W12×136
W310�202
0.106
40
40
40
50
70
W10×112
W250�167
0.104
40
40
40
50
70
W10×100
W250�149
0.094
40
40
40
55
70
W10×88
W250�131
0.084
40
40
40
55
75
W10×77
W250�115
0.074
40
40
40
60
75
W8×35
W200�52
0.043
40
40
50
70
90
W8×28
W200�41.7
0.039
40
40
55
75
90
W8×24
W200�35.9
0.034
40
45
55
75
95
W8×18
W200�26.6
0.028
40
45
55
80
95
The tabulated thicknesses are based upon the assumed properties of structural
lightweight concrete given in Table 4B.21.5.1(2).
2007
4/97
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
Structural steel beams and girders. The fire-resistance ratings of steel beams
and girders shall be based upon the size of the element and the type of protection
provided in accordance with this section.
4B.21.5.2.1 Determination of fire resistance. These procedures establish a basis for
determining resistance of structural steel beams and girders which differ in size
from that specified in approved fire-resistant assemblies as a function of the
thickness of fire-resistant material and the weight (W) and heated perimeter (D) of
the beam or girder. As used in these sections, W is the average weight of a
structural steel member in kilograms per linear meter. The heated perimeter, D, is
the inside perimeter of the fire-resistant material in millimeters as illustrated in
Figure 4B.21.5.2.
4B.21.5.2.1.1 Weight-to-heated perimeter. The weight-to-heated-perimeter ratios (W/D), for
both contour and box fire-resistant protection profiles, for some wide flange
shapes used as beams or girders are given in Table 4B.21.5.1(4). For different
shapes, the weight-to-heated-perimeter ratios (W/D) shall be determined in
accordance with the definitions given in this section.
4B.21.5.2.1.2 Beam and girder substitutions. Except as provided for in Section 4B.21.5.2.2,
structural steel beams in approved fire-resistant assemblies shall be considered the
minimum permissible size. Other beam or girder shapes shall be permitted to be
substituted provided that the weight-to-heated-perimeter ratio (W/D) of the
substitute beam is equal to or greater than that of the beam specified in the
approved assembly.
4B.21.5.2
FIGURE 4B.21.5.2
DETERMINATION OF THE HEATED PERIMETER OF
STRUCTURAL STEEL BEAMS AND GIRDERS
4B.21.5.2.2 Spray-applied fire-resistant materials. The provisions in this section apply to
unrestrained structural steel beams and girders protected with spray-applied fireresistant materials. Larger or smaller unrestrained beam and girder shapes shall be
permitted to be substituted for beams specified in approved unrestrained or
restrained fire-resistant assemblies provided that the thickness of the fire-resistant
material is adjusted in accordance with the following expression:
� �W / D1 � � 0.60 �
h2 � � 1
� h1
�� �W2 / D2 � � 0.60 ��
(Equation 4B.-17)
Where:
h = Thickness of spray-applied fire-resistant material in mm
W = Weight of the structural steel beam or girder in kg/m
D = Heated perimeter of the structural steel beam or girder in mm
SBC 801
2007
4/98
TYPES OF CONSTRUCTION AND FIRE-RESISTANCE-RATED CONSTRUCTION
Subscript 1 refers to the beam and fire-resistant material thickness in the approved
assembly.
Subscript 2 refers to the substitute beam or girder and the required thickness of
fire-resistant material.
4B.21.5.2.2.1 Minimum thickness. Equation 4B.-17 is limited to beams with a weight-toheated-perimeter ratio (W/D) of 0.022 or greater. The minimum thickness of fireresistant material shall not be less than 10 mm.
4B.21.5.2.3 Structural steel trusses. The fire resistance of structural steel trusses protected
with fire-resistant materials spray applied to each of the individual truss elements
shall be permitted to be determined in accordance with this section. The thickness
of the fire-resistant material shall be determined in accordance with Section
4B.21.5.1.3. The weight-to-heated-perimeter ratio (W/D) of truss elements which
can be simultaneously exposed to fire on all sides shall be determined on the same
basis as columns, as specified in Section 4B.21.5.1.1. The weight-to-heatedperimeter ratio (W/D) of truss elements which directly support floor or roof
construction shall be determined on the same basis as beams and girders, as
specified in Section 4B.21.5.2.1.
SBC 801
2007
4/99
GENERAL PRECAUTIONS AGAINST FIRE
CHAPTER 5
GENERAL PRECAUTIONS AGAINST FIRE, EMERGENCY
PLANNING AND PREPAREDNESS FIRE SERVICE FEATURES
BUILDING SERVICES AND SYSTEMS
SECTION 5A
GENERAL PRECAUTIONS AGAINST FIRE
SECTION 5A.1
GENERAL
5A.1.1
Scope. The provisions of this section shall govern the occupancy and maintenance
of all structures and premises for precautions against fire and the spread of fire.
5A.1.2
Permits. Permits shall be required as set forth in SBC 100 for the activities or uses
regulated by Sections 5A.6, 5A.7, 5A.8.3, 5A.8.4, 5A.8.5 and 5A.15.
SECTION 5A.2
DEFINITIONS
5A.2.1
Definitions. The following words and terms shall, for the purposes of this section
and as used elsewhere in these code requirements, have the meanings shown
herein.
BONFIRE. An outdoor fire utilized for ceremonial purposes.
HI-BOY. A cart used to transport hot roofing materials on a roof.
OPEN BURNING. The burning of materials wherein products of combustion are
emitted directly into the ambient air without passing through a stack or chimney
from an enclosed chamber. Open burning does not include road flares, smudge
pots and similar devices associated with safety or occupational uses typically
considered open flames or recreational fires. For the purpose of this definition, a
chamber shall be regarded as enclosed when, during the time combustion occurs,
only apertures, ducts, stacks, flues or chimneys necessary to provide combustion
air and permit the escape of exhaust gas are open.
POWERED INDUSTRIAL TRUCK. A forklift, tractor, platform lift truck or
motorized hand truck powered by an electrical motor or internal combustion
engine. Powered industrial trucks do not include farm vehicles or automotive
vehicles for highway use.
RECREATIONAL FIRE. An outdoor fire burning materials other than rubbish
where the fuel being burned is not contained in an incinerator, outdoor fireplace,
barbeque grill or barbeque pit and has a total fuel area of 900 mm or less in
diameter and 0.6 m or less in height for pleasure, ceremonial, cooking, warmth or
similar purposes.
SECTION 5A.3
ASPHALT KETTLES
5A.3.1
SBC 801
Transporting. Asphalt (tar) kettles shall not be transported over any highway,
road or street when the heat source for the kettle is operating.
2007
5/1
GENERAL PRECAUTIONS AGAINST FIRE
Exception: Asphalt (tar) kettles in the process of patching road surfaces.
5A.3.2
Location. Asphalt (tar) kettles shall not be located within 6.1 m of any
combustible material, combustible building surface or any building opening and
within a controlled area identified by the use of traffic cones, barriers or other
approved means. Asphalt (tar) kettles and pots shall not be utilized inside or on the
roof of a building or structure. Roofing kettles and operating asphalt (tar) kettles
shall not block means of egress, gates, roadways or entrances.
5A.3.3
Location of fuel containers. Fuel containers shall be located at least 3 m from the
burner.
Exception: Containers properly insulated from heat or flame are allowed to be
within 0.6 m of the burner.
5A.3.4
Attendant. An operating kettle shall be attended by a minimum of one employee
knowledgeable of the operations and hazards. The employee shall be within 30.5
m of the kettle and have the kettle within sight. Ladders or similar obstacles shall
not form a part of the route between the attendant and the kettle.
5A.3.5
Fire extinguishers. There shall be a portable fire extinguisher complying with
Section 7.6 and with a minimum 40-B:C rating within 7.6 m of each asphalt (tar)
kettle during the period such kettle is being utilized, and one additional portable
fire extinguisher with a minimum 40-B:C rating on the roof being covered.
5A.3.6
Lids. Asphalt (tar) kettles shall be equipped with tight-fitting lids.
5A.3.7
Hi-boys. Hi-boys shall be constructed of noncombustible materials. Hi-boys shall
be limited to a capacity of 208 L. Fuel sources or heating elements shall not be
allowed as part of a hi-boy.
5A.3.8
Roofing kettles. Roofing kettles shall be constructed of noncombustible materials.
5A.3.9
Fuel containers under air pressure. Fuel containers that operate under air
pressure shall not exceed 76 L in capacity and shall be approved.
SECTION 5A.4
COMBUSTIBLE WASTE MATERIAL
5A.4.1
5A.4.1.1
5A.4.1.2
5A.4.1.3
SBC 801
Waste accumulation prohibited. Combustible waste material creating a fire
hazard shall not be allowed to accumulate in buildings or structures or upon
premises.
Waste material. Accumulations of wastepaper, wood, hay, straw, weeds, litter or
combustible or flammable waste or rubbish of any type shall not be permitted to
remain on a roof or in any court, yard, vacant lot, alley, parking lot, open space, or
beneath a grandstand, bleacher, pier, wharf, manufactured home, recreational
vehicle or other similar structure.
Vegetation. Weeds, grass, vines or other growth that is capable of being ignited
and endangering property, shall be cut down and removed by the owner or
occupant of the premises.
Space underneath seats. Spaces underneath grandstand and bleacher seats shall
be kept free from combustible and flammable materials. Except where enclosed in
not less than 1 hour fire-resistance-rated construction in accordance with the
2007
5/2
GENERAL PRECAUTIONS AGAINST FIRE
Chapter 4, spaces underneath grandstand and bleacher seats shall not be occupied
or utilized for purposes other than means of egress.
5A.4.2
Storage. Storage of combustible rubbish shall not produce conditions that will
create a nuisance or a hazard to the public health, safety or welfare.
5A.4.3
Containers. Combustible rubbish, and waste material kept within a structure shall
be stored in accordance with Sections 5A.4.3.1 through 5A.4.3.3.
Spontaneous ignition. Materials susceptible to spontaneous ignition, such as oily
rags, shall be stored in a listed disposal container. Contents of such containers
shall be removed and disposed of daily.
Capacity exceeding 0.15 m3. Containers with a capacity exceeding 0.15 m3 shall
be provided with lids. Containers and lids shall be constructed of noncombustible
materials or approved combustible materials.
Capacity exceeding 1.15 m3. Dumpsters and containers with an individual
capacity of 1.15 m3 or more shall not be stored in buildings or placed within 1.5 m
of combustible walls, openings or combustible roof eave lines.
Exceptions:
1. Dumpsters or containers in areas protected by an approved automatic sprinkler
system complying with Chapter 7.
2. Storage in a structure shall not be prohibited where the structure is of Type I or
Type IIA construction, located not less than 3 m from other buildings and used
exclusively for dumpster or container storage.
5A.4.3.1
5A.4.3.2
5A.4.3.3
SECTION 5A.5
IGNITION SOURCES
5A.5.1
Clearance from ignition sources. Clearance between ignition sources, such as
light fixtures, heaters and flame-producing devices, and combustible materials
shall be maintained in an approved manner.
5A.5.2
Hot ashes and spontaneous ignition sources. Hot ashes, cinders, smoldering
coals or greasy or oily materials subject to spontaneous ignition shall not be
deposited in a combustible receptacle, within 3 m of other combustible material
including combustible walls and partitions or within 0.6 m of openings to
buildings.
Exception: The minimum required separation distance to other combustible
materials shall be 0.6 m where the material is deposited in a covered,
noncombustible receptacle placed on a noncombustible floor, ground surface or
stand.
5A.5.3
Open-flame warning devices. Open-flame warning devices shall not be used
along an excavation, road, or any place where the dislodgment of such device
might permit the device to roll, fall or slide on to any area or land containing
combustible material.
5A.5.4
Deliberate or negligent burning. It shall be unlawful to deliberately or through
negligence set fire to or cause the burning of combustible material in such a
manner as to endanger the safety of persons or property.
SBC 801
2007
5/3
GENERAL PRECAUTIONS AGAINST FIRE
SECTION 5A.6
MOTION PICTURE FILM AND SCREENS
5A.6.1
Motion picture projection rooms. Electric arc, xenon or other light source
projection equipment which develops hazardous gases, dust or radiation and the
projection of ribbon-type cellulose nitrate film, regardless of the light source used
in projection, shall be operated within a motion picture projection room complying
with Section 2.22 of SBC 201.
5A.6.2
Cellulose nitrate film storage. Storage of cellulose nitrate film shall be in
accordance with NFPA 40.
SECTION 5A.7
OPEN BURNING AND RECREATIONAL FIRES
5A.7.1
General. A person shall not kindle or maintain or authorize to be kindled or
maintained any open burning unless conducted and approved in accordance with
this section.
5A.7.2
Permit required. A permit shall be obtained from the building official in
accordance with SBC 100 prior to kindling a fire for recognized silvicultural or
range or wildlife management practices, prevention or control of disease or pests,
or a bonfire. Application for such approval shall only be presented by and permits
issued to the owner of the land upon which the fire is to be kindled.
Authorization. Where required local law or regulations, open burning shall only
be permitted with prior approval from the local air and water quality management
authority, provided that all conditions specified in the authorization are followed.
Prohibited open burning. Open burning that will be offensive or objectionable
because of smoke or odor emissions when atmospheric conditions or local
circumstances make such fires hazardous shall be prohibited. The building official
is authorized to order the extinguishment by the permit holder or the Civil Defence
of open burning which creates or adds to a hazardous or objectionable situation.
5A.7.2.1
5A.7.2.2
5A.7.3
5A.7.3.1
5A.7.3.2
5A.7.4
SBC 801
Location. The location for open burning shall not be less than 15.2 m from any
structure, and provisions shall be made to prevent the fire from spreading to within
15.2 m of any structure.
Exceptions:
1. Fires in approved containers that are not less than 4.6 m from a structure.
2. The minimum required distance from a structure shall be 7.6 m where the pile
size is 900 mm or less in diameter and 0.6 m or less in height.
Bonfires. A bonfire shall not be conducted within 15.2 m of a structure or
combustible material unless the fire is contained in a barbecue pit. Conditions
which could cause a fire to spread within 15.2 m of a structure shall be eliminated
prior to ignition.
Recreational fires. Recreational fires shall not be conducted within 7.6 m of a
structure or combustible material. Conditions which could cause a fire to spread
within 7.6 m of a structure shall be eliminated prior to ignition.
Attendance. Open burning, bonfires or recreational fires shall be constantly
attended until the fire is extinguished. A minimum of one portable fire
extinguisher complying with Section 7.6 with a minimum 4-A rating or other
approved on-site fire-extinguishing equipment, such as dirt, sand, water barrel,
2007
5/4
GENERAL PRECAUTIONS AGAINST FIRE
garden hose or water truck, shall be available for immediate utilization.
SECTION 5A.8
OPEN FLAMES
5A.8.1
General. This section shall control open flames, fire and burning on all premises.
5A.8.2
Where prohibited. A person shall not take or utilize an open flame or light in a
structure, vessel, boat or other place where highly flammable, combustible or
explosive material is utilized or stored. Lighting appliances shall be well-secured
in a glass globe and wire mesh cage or a similar approved device.
Throwing or placing sources of ignition. No person shall throw or place, or
cause to be thrown or placed, a lighted match, cigar, cigarette, matches, or other
flaming or glowing substance or object on any surface or article where it can cause
an unwanted fire.
5A.8.2.1
Open flame. A person shall not utilize or allow to be utilized, an open flame in
connection with a public meeting or gathering for purposes of deliberation,
worship, entertainment, amusement, instruction, education, recreation, awaiting
transportation or similar purpose in assembly or educational occupancies without
first obtaining a permit in accordance with SBC 100.
5A.8.3.1
Open-flame cooking devices. Charcoal burners and other open-flame cooking
devices shall not be operated on combustible balconies or within 3 m of
combustible construction.
Exceptions:
1. One- and two-family dwellings.
2. Where buildings, balconies and decks are protected by an automatic sprinkler
system.
5A.8.3.1.1 Liquefied-petroleum-gas-fueled cooking devices. LP-gas burners having an LPgas container with a water capacity greater than 1.14 kg shall not be located on
combustible balconies or within 3 m of combustible construction.
Exception: One- and two-family dwellings.
5A.8.3.2
Open-flame decorative devices. Open-flame decorative devices shall comply
with all of the following restrictions:
1. Class I and Class II liquids and LP-gas shall not be used.
2. Liquid or solid-fueled lighting devices containing more than 237 ml of fuel
must self-extinguish and not leak fuel at a rate of more than 1.26 ml per
minute if tipped over.
3. The device or holder shall be constructed to prevent the spillage of liquid fuel
or wax at the rate of more than 1.26 ml per minute when the device or holder
is not in an upright position.
4. The device or holder shall be designed so that it will return to the upright
position after being tilted to an angle of 45 degrees from vertical.
Exception: Devices that self-extinguish if tipped over and do not spill fuel or
wax at the rate of more than 1.26 ml per minute if tipped over.
5. The flame shall be enclosed except where openings on the side are not more
than 9.5 mm diameter or where openings are on the top and the distance to the
top is such that a piece of tissue paper placed on the top will not ignite in 10
seconds.
6. Chimneys shall be made of noncombustible materials and securely attached to
the open-flame device.
Exception: A chimney is not required to be attached to any open-flame device
SBC 801
2007
5/5
5A.8.3
GENERAL PRECAUTIONS AGAINST FIRE
5A.8.3.3
5A.8.3.4
5A.8.3.5
5A.8.3.6
5A.8.3.7
5A.8.4
5A.8.4.1
5A.8.5
SBC 801
that will self-extinguish if the device is tipped over.
7. Fuel canisters shall be safely sealed for storage.
8. Storage and handling of combustible liquids shall be in accordance with
Chapter 32.
9. Shades, where used, shall be made of noncombustible materials and securely
attached to the open-flame device holder or chimney.
10. Candelabras with flame-lighted candles shall be securely fastened in place to
prevent overturning, and shall be located away from occupants using the area
and away from possible contact with drapes, curtains or other combustibles.
Location near combustibles. Open flames such as from candles, lanterns,
kerosene heaters, and gas-fired heaters shall not be located on or near decorative
material or similar combustible materials.
Aisles and exits. Candles shall be prohibited in areas where occupants stand, or in
an aisle or exit.
Ceremonies. When, in the opinion of the building official, adequate safeguards
have been taken, participants in ceremonies are allowed to carry hand-held
candles, and sandle wood burner. Hand-held candles and sandle wood burner shall
not be passed from one person to another while lighted.
Theatrical performances. Where approved, open-flame devices used in
conjunction with theatrical performances are allowed to be used when adequate
safety precautions have been taken in accordance with NFPA 160.
Group A occupancies. Open-flame devices shall not be used in a Group A
occupancy.
Exceptions:
1. Open-flame devices are allowed to be used in the following situations,
provided approved precautions are taken to prevent ignition of a combustible
material or injury to occupants:
1.1 Where necessary for ceremonial purposes in accordance with Section
5A.8.3.5.
1.2 On stages and platforms as a necessary part of a performance in
accordance with Section 5A.8.3.6.
1.3 Where candles on tables are securely supported on substantial
noncombustible bases and the candle flames are protected.
2. Heat-producing equipment complying with Chapter 6 and the SBC 501.
3. Gas lights are allowed to be used provided adequate precautions satisfactory to
the building official are taken to prevent ignition of combustible materials.
Torches for removing paint. Persons utilizing a torch or other flame-producing
device for removing paint from a structure shall provide a minimum of one
portable fire extinguisher complying with Section 7.6 and with a minimum 4-A
rating, two portable fire extinguishers, each with a minimum 2-A rating, or a water
hose connected to the water supply on the premises where such burning is done.
The person doing the burning shall remain on the premises 1 hour after the torch
or flame-producing device is utilized.
Permit. A permit in accordance with SBC 100 shall be secured from the building
official prior to the utilization of a torch or flame-producing device to remove
paint from a structure.
Open-flame devices. Torches and other devices, machines or processes liable to
start or cause fire shall not be operated or used in or upon hazardous fire areas,
except by a permit in accordance with SBC 100 secured from the building official.
Exception: Use within inhabited premises or designated campsites which are a
2007
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GENERAL PRECAUTIONS AGAINST FIRE
5A.8.5.1
5A.8.5.2
minimum of 9.1 m from grass, grain, brush or forest-covered areas.
Signals and markers. Flame-employing devices, such as lanterns or kerosene
road flares, shall not be operated or used as a signal or marker in or upon
hazardous fire areas.
Exception: The proper use of fuses at the scenes of emergencies or as required by
standard railroad operating procedures.
Portable fueled open-flame devices. Portable open-flame devices fueled by
flammable or combustible gases or liquids shall be enclosed or installed in such a
manner as to prevent the flame from contacting combustible material.
Exceptions:
1. LP-gas-fueled devices used for sweating pipe joints or removing paint in
accordance with Chapter 36.
2. Cutting and welding operations in accordance with Chapter 24.
3. Torches or flame-producing devices in accordance with Section 5A.8.4.
4. Candles and open-flame decorative devices in accordance with Section 5A.8.3.
SECTION 5A.9
POWERED INDUSTRIAL TRUCKS
5A.9.1
General. Powered industrial trucks shall be operated and maintained in
accordance with this section.
5A.9.2
Battery chargers. Battery chargers shall be of an approved type. Combustible
storage shall be kept a minimum of 900 mm from battery chargers. Battery
charging shall not be conducted in areas accessible to the public.
5A.9.3
Ventilation. Ventilation shall be provided in an approved manner in batterycharging areas to prevent a dangerous accumulation of flammable gases.
5A.9.4
Fire extinguishers. Battery-charging areas shall be provided with a fire
extinguisher complying with Section 7.6 having a minimum 4-A:20-B:C rating
within 6.1 m of the battery charger.
5A.9.5
Refueling. Powered industrial trucks using liquid fuel or LP-gas shall be refueled
outside of buildings or in areas specifically approved for that purpose and in
accordance with Chapter 32 or 36.
5A.9.6
Repairs. Repairs to fuel systems, electrical systems and repairs utilizing open
flame or welding shall be done in approved locations outside of buildings or in
areas specifically approved for that purpose.
SECTION 5A.10
SMOKING
5A.10.1
General. The smoking or carrying of a lighted pipe, cigar, cigarette or any other
type of smoking paraphernalia or material is prohibited in the areas indicated in
this section.
5A.10.2
Prohibited areas. Smoking shall be prohibited where conditions are such as to
make smoking a hazard, and in spaces where flammable or combustible materials
are stored or handled.
SBC 801
2007
5/7
GENERAL PRECAUTIONS AGAINST FIRE
5A.10.3
“No Smoking” signs. The building official is authorized to order the posting of
“No Smoking” signs in a conspicuous location in each structure or location in
which smoking is prohibited. The content, lettering, size, color and location of
required “No Smoking” signs shall be approved.
5A.10.4
Removal of signs prohibited. A posted “No Smoking” sign shall not be obscured,
removed, defaced, mutilated or destroyed.
5A.10.5
Compliance with “No Smoking” signs. Smoking shall not be permitted nor shall
a person smoke, throw or deposit any lighted or smoldering substance in any place
where “No Smoking” signs are posted.
5A.10.6
Ash trays. Where smoking is permitted, suitable noncombustible ashtrays or
match receivers shall be provided on each table and at other appropriate locations.
5A.10.7
Burning objects. Lighted matches, cigarettes, cigars or other burning object shall
not be discarded in such a manner that could cause ignition of other combustible
material.
5A.10.8
Hazardous environmental conditions. When the building official determines that
hazardous environmental conditions necessitate controlled use of smoking
materials, the ignition or use of such materials in mountainous, brush-covered or
forest-covered areas or other designated areas is prohibited except in approved
designated smoking areas.
SECTION 5A.11
VACANT PREMISES
5A.11.1
5A.11.1.1
5A.11.1.2
5A.11.2
5A.11.2.1
5A.11.2.2
SBC 801
General. Temporarily unoccupied buildings, structures, premises or portions
thereof, including tenant spaces, shall be safeguarded and maintained in
accordance with this section.
Abandoned premises. Buildings, structures and premises for which an owner
cannot be identified or located by dispatch of a certificate of mailing to the last
known or registered address, which persistently or repeatedly become unprotected
or unsecured, which have been occupied by unauthorized persons or for illegal
purposes, or which present a danger of structural collapse or fire spread to adjacent
properties shall be considered abandoned, declared unsafe and abated by
demolition or rehabilitation in accordance with the SBC 100.
Tenant spaces. Storage and lease plans required by these code requirements shall
be revised and updated to reflect temporary or partial vacancies.
Safeguarding vacant premises. Temporarily unoccupied buildings, structures,
premises or portions thereof shall be secured and protected in accordance with this
section.
Security. Exterior openings and interior openings accessible to other tenants or
unauthorized persons shall be boarded, locked, blocked or otherwise protected to
prevent entry by unauthorized individuals.
Fire protection. Fire alarm, sprinkler and standpipe systems shall be maintained
in an operable condition at all times.
Exceptions:
1. When the premises have been cleared of all combustible materials and debris
and, in the opinion of the building official, the type of construction, fire
2007
5/8
GENERAL PRECAUTIONS AGAINST FIRE
5A.11.2.3
separation distance and security of the premises do not create a fire hazard.
2. Where buildings will not be heated and fire protection systems will be exposed
to freezing temperatures, fire alarm and sprinkler systems are permitted to be
placed out of service and standpipes are permitted to be maintained as dry
systems (without an automatic water supply) provided the building has no
contents or storage, and windows, doors and other openings are secured to
prohibit entry by unauthorized persons.
Fire separation. Fire-resistance-rated partitions, fire barriers, and fire walls
separating vacant tenant spaces from the remainder of the building shall be
maintained. Openings, joints, and penetrations in fire-resistance-rated assemblies
shall be protected in accordance with Chapter 4.
5A.11.3
Removal of combustibles. Persons owning, or in charge or control of, a vacant
building or portion thereof, shall remove from all accumulations of combustible
materials, flammable or combustible waste or rubbish and shall securely lock or
otherwise secure doors, windows and other openings to prevent entry by
unauthorized persons. The premises shall be maintained clear of waste or
hazardous materials.
Exceptions:
1. Buildings or portions of buildings undergoing additions, alterations, repairs, or
change of occupancy in accordance with the SBC 201, where waste is
controlled and removed as required by Section 5A.4.
2. Seasonally occupied buildings.
5A.11.4
Removal of hazardous materials. Persons owning or having charge or control of
a vacant building containing hazardous materials regulated by Chapter 25 shall
comply with the facility closure requirements of Section 25.1.6.
SECTION 5A.12
VEHICLE IMPACT PROTECTION
5A.12.1
General. Vehicle impact protection required by these code requirements shall be
provided by posts that comply with Section 5A.12.2 or by other approved physical
barriers that comply with Section 5A.12.3.
5A.12.2
Posts. Guard posts shall comply with all of the following requirements:
1. Constructed of steel not less than 100 mm in diameter and concrete filled.
2. Spaced not more than 1.2 m between posts on center.
3. Set not less than 900 mm deep in a concrete footing of not less than a 381 mm
diameter.
4. Set with the top of the posts not less than 900 mm above ground.
5. Located not less than 900 mm from the protected object.
5A.12.3
Other barriers. Physical barriers shall be a minimum of 900 mm in height and
shall resist a force of 53,375 N applied 900 mm above the adjacent ground surface.
SECTION 5A.13
FUELED EQUIPMENT
5A.13.1
SBC 801
Fueled equipment. Fueled equipment, including but not limited to motorcycles,
mopeds, lawn-care equipment and portable cooking equipment, shall not be stored,
operated or repaired within a building.
2007
5/9
GENERAL PRECAUTIONS AGAINST FIRE
5A.13.1.1
5A.13.2
Exceptions:
1. Buildings or rooms constructed for such use in accordance with the SBC.
2. Where allowed by Section 5A.13.
Removal. The building official is authorized to require removal of fueled
equipment from locations where the presence of such equipment is determined by
the building official to be hazardous.
Group R occupancies. Vehicles powered by flammable liquids, Class II
combustible liquids, or compressed flammable gases shall not be stored within the
living space of Group R buildings and shall be separated from other occupancies
in accordance with the SBC.
SECTION 5A.14
INDOOR DISPLAYS
5A.14.1
General. Indoor displays constructed within any occupancy shall comply with
Sections 5A.14.2 through 5A.14.4.
5A.14.2
Fixtures and displays. Fixtures and displays of goods for sale to the public shall
be arranged so as to maintain free, immediate and unobstructed access to exits as
required by Chapter 8.
5A.14.3
Highly combustible goods. The display of highly combustible goods, including
but not limited to fireworks, flammable or combustible liquids, liquefied
flammable gases, oxidizing materials, pyroxylin plastics and agricultural goods, in
main exit access aisles, corridors, covered malls, or within 1.5 m of entrances to
exits and exterior exit doors is prohibited when a fire involving such goods would
rapidly prevent or obstruct egress.
5A.14.4
Vehicles. Liquid or gas-fueled vehicles, boats or other motorcraft shall not be
located indoors except as follows:
1. Batteries are disconnected.
2. Fuel in fuel tanks does not exceed one-quarter tank or 19 L (whichever is
least).
3. Fuel tanks and fill openings are closed and sealed to prevent tampering.
4. Vehicles, boats or other motorcraft equipment are not fueled or defueled within
the building.
SECTION 5A.15
MISCELLANEOUS COMBUSTIBLE MATERIALS STORAGE
5A.15.1
General. Storage, use and handling of miscellaneous combustible materials shall
be in accordance with this section. A permit shall be obtained in accordance with
SBC 100.
5A.15.2
Storage in buildings. Storage of combustible materials in buildings shall be
orderly. Storage shall be separated from heaters or heating devices by distance or
shielding so that ignition cannot occur.
Ceiling clearance. Storage shall be maintained 0.6 m or more below the ceiling in
nonsprinklered areas of buildings or a minimum of 457 mm below sprinkler head
deflectors in sprinklered areas of buildings.
Means of egress. Combustible materials shall not be stored in exits or exit
5A.15.2.1
5A.15.2.2
SBC 801
2007
5/10
GENERAL PRECAUTIONS AGAINST FIRE
5A.15.2.3
5A.15.2.4
5A.15.3
5A.15.3.1
5A.15.3.2
enclosures.
Equipment rooms. Combustible material shall not be stored in boiler rooms,
mechanical rooms or electrical equipment rooms.
Attic, under-floor and concealed spaces. Attic, under-floor and concealed spaces
used for storage of combustible materials shall be protected on the storage side as
required for 1-hour fire-resistance-rated construction. Openings shall be protected
by assemblies that are self-closing and are of noncombustible construction or solid
wood core not less than 44.5 mm in thickness. Storage shall not be placed on
exposed joists.
Exceptions:
1. Areas protected by approved automatic sprinkler systems.
2. Group R-3 and Group U occupancies.
Outside storage. Outside storage of combustible materials shall not be located
within 3 m of a property line.
Exceptions:
1. The separation distance is allowed to be reduced to 900 mm for storage not
exceeding 1.8 m in height.
2. The separation distance is allowed to be reduced when the building official
determines that no hazard to the adjoining property exists.
Storage beneath overhead projections from buildings. Combustible materials
stored or displayed outside of buildings that are protected by automatic sprinklers
shall not be stored or displayed under nonsprinklered eaves, canopies or other
projections or overhangs.
Height. Storage in the open shall not exceed 6.1 m in height.
SECTION 5B
EMERGENCY PLANNING AND PREPAREDNESS
SECTION 5B.1
GENERAL
5B.1.1
Scope. Reporting of emergencies, coordination with emergency response forces,
emergency plans, and procedures for managing or responding to emergencies shall
comply with the provisions of this section.
Exception: Firms that have approved on-premises fire-fighting organizations and
that are in compliance with approved procedures for fire reporting.
5B.1.2
Approval. Where required by these code requirements, fire safety plans,
emergency procedures, and employee training programs shall be approved by the
building official.
5B.1.3
Emergency forces notification. In the event an unwanted fire occurs on a
property, the owner or occupant shall immediately report such condition to the fire
department. Building employees and tenants shall implement the appropriate
emergency plans and procedures. No person shall, by verbal or written directive,
require any delay in the reporting of a fire to the fire department.
Making false report. It shall be unlawful for a person to give, signal, or transmit a
false alarm.
Alarm activations. Upon activation of a fire alarm signal, employees or staff shall
immediately notify the fire department.
5B.1.3.1
5B.1.3.2
SBC 801
2007
5/11
GENERAL PRECAUTIONS AGAINST FIRE
5B.1.3.3
Emergency evacuation drills. Nothing in this section shall prohibit the sounding
of a fire alarm signal for the carrying out of an emergency evacuation drill in
accordance with the provisions of Section 5B.5.
5B.1.4
Interference with fire department operations. It shall be unlawful to interfere
with, attempt to interfere with, conspire to interfere with, obstruct or restrict the
mobility of or block the path of travel of a fire department emergency vehicle in
any way, or to interfere with, attempt to interfere with, conspire to interfere with,
obstruct or hamper any fire department operation.
5B.1.5
Security device. Any security device or system that emits any medium that could
obscure a means of egress in any building, structure or premise shall be prohibited.
SECTION 5B.2
DEFINITIONS
5B.2.1
Definition. The following word and term shall, for the purposes of this section and
as used elsewhere in these code requirements, have the meaning shown herein.
EMERGENCY EVACUATION DRILL. An exercise performed to train staff
and occupants and to evaluate their efficiency and effectiveness in carrying out
emergency evacuation procedures.
SECTION 5B.3
PUBLIC ASSEMBLAGES AND EVENTS
5B.3.1
5B.3.1.1
5B.3.1.2
SBC 801
General. When, in the opinion of the building official, it is essential for public
safety in a place of assembly or any other place where people congregate, because
of the number of persons, or the nature of the performance, exhibition, display,
contest or activity, the owner, agent or lessee shall provide one or more fire watch
personnel, as required and approved, to remain on duty during the times such
places are open to the public, or when such activity is being conducted. The fire
watch personnel shall keep diligent watch for fires, obstructions to means of egress
and other hazards during the time such place is open to the public or such activity
is being conducted and take prompt measures for remediation of hazards,
extinguishment of fires that occur and assist in the evacuation of the public from
the structures.
Public safety plan. In other than Group A or E occupancies, where the building
official determines that an indoor or outdoor gathering of persons has an adverse
impact on public safety through diminished access to buildings, structures, fire
hydrants and fire apparatus access roads or where such gatherings adversely affect
public safety services of any kind, the building official shall have the authority to
order the development of, or prescribe a plan for, the provision of an approved
level of public safety.
Contents. The public safety plan, where required by Section 5B.3.1.1, shall
address such items as emergency vehicle ingress and egress, fire protection,
emergency medical services, public assembly areas and the directing of both
attendees and vehicles (including the parking of vehicles), vendor and food
concession distribution, and the need for the presence of law enforcement, and fire
and emergency medical services personnel at the event.
2007
5/12
GENERAL PRECAUTIONS AGAINST FIRE
SECTION 5B.4
FIRE SAFETY AND EVACUATION PLANS
5B.4.1
General. Fire safety and evacuation plans shall comply with the requirements of
this section.
5B.4.2
Where required. An approved fire safety and evacuation plan shall be prepared
and maintained for the following occupancies and buildings.
1. Group A, other than Group A occupancies used exclusively for purposes of
mosques that have an occupant load less than 2,000.
2. Group E.
3. Group H.
4. Group I.
5. Group R-1.
6. Group R-4.
7. High-rise buildings.
8. Group M buildings having an occupant load of 500 or more persons or more
than 100 persons above or below the lowest level of exit discharge.
2
9. Covered malls exceeding 4,645 m in aggregate floor area.
10. Underground buildings.
11. Buildings with an atrium and having an occupancy in Group A, E or M.
5B.4.3
Contents. Fire safety and evacuation plan contents shall be in accordance with
Sections 5B.4.3.1 and 5B.4.3.2.
Fire evacuation plans. Fire evacuation plans shall include the following:
1. Emergency egress or escape routes and whether evacuation of the building is
to be complete or, where approved, by selected floors or areas only.
2. Procedures for employees who must remain to operate critical equipment
before evacuating.
3. Procedures for accounting for employees and occupants after evacuation has
been completed.
4. Identification and assignment of personnel responsible for rescue or
emergency medical aid.
5. The preferred and any alternative means of notifying occupants of a fire or
emergency.
6. The preferred and any alternative means of reporting fires and other
emergencies to the fire department or designated emergency response
organization.
7. Identification and assignment of personnel who can be contacted for further
information or explanation of duties under the plan.
8. A description of the emergency voice/alarm communication system alert tone
and preprogrammed voice messages, where provided.
Fire safety plans. Fire safety plans shall include the following:
1. The procedure for reporting a fire or other emergency.
2. The life safety strategy and procedures for notifying, relocating, or evacuating
occupants.
3. Site plans indicating the following:
3.1 The occupancy assembly point.
3.2 The locations of fire hydrants.
3.3 The normal routes of fire department vehicle access.
4. Floor plans identifying the locations of the following:
4.1 Exits.
2007
5/13
5B.4.3.1
5B.4.3.2
SBC 801
GENERAL PRECAUTIONS AGAINST FIRE
4.2 Primary evacuation routes.
4.3 Secondary evacuation routes.
4.4 Accessible egress routes.
4.5 Areas of refuge.
4.6 Manual fire alarm boxes.
4.7 Portable fire extinguishers.
4.8 Occupant-use hose stations.
4.9 Fire alarm annunciators and controls.
5. A list of major fire hazards associated with the normal use and occupancy of
the premises, including maintenance and housekeeping procedures.
6. Identification and assignment of personnel responsible for maintenance of
systems and equipment installed to prevent or control fires.
7. Identification and assignment of personnel responsible for maintenance,
housekeeping and controlling fuel hazard sources.
5B.4.4
Maintenance. Fire safety and evacuation plans shall be reviewed or updated
annually or as necessitated by changes in staff assignments, occupancy, or the
physical arrangement of the building.
5B.4.5
Availability. Fire safety and evacuation plans shall be available in the workplace
for reference and review by employees, and copies shall be furnished to the
building official for review upon request.
SECTION 5B.5
EMERGENCY EVACUATION DRILLS
5B.5.1
General. Emergency evacuation drills complying with the provisions of this
section shall be conducted in the occupancies listed in Section 5B.4.2 or when
required by the building official. Drills shall be designed in cooperation with the
local authorities.
5B.5.2
Frequency. Required emergency evacuation drills shall be held at the intervals
specified in Table 5B.5.2 or more frequently where necessary to familiarize all
occupants with the drill procedure.
5B.5.3
Leadership. Responsibility for the planning and conduct of drills shall be assigned
to competent persons designated to exercise leadership.
5B.5.4
Time. Drills shall be held at unexpected times and under varying conditions to
simulate the unusual conditions that occur in case of fire.
5B.5.5
Record keeping. Records shall be maintained of required emergency evacuation
drills and include the following information:
1. Identity of the person conducting the drill.
2. Date and time of the drill.
3. Notification method used.
4. Staff members on duty and participating.
5. Number of occupants evacuated.
6. Special conditions simulated.
7. Problems encountered.
8. Weather conditions when occupants were evacuated.
9. Time required to accomplish complete evacuation.
SBC 801
2007
5/14
GENERAL PRECAUTIONS AGAINST FIRE
5B.5.6
Notification. Where required by the building official, prior notification of
emergency evacuation drills shall be given to the building official.
TABLE 5B.5.2
FIRE AND EVACUATION DRILL FREQUENCY AND
PARTICIPATION
GROUP OR
OCCUPANCY
FREQUENCY
PARTICIPATION
Group A
Quarterly
Employees
a.
b.
Group E
Monthlya
All occupants
Group I
Quarterly on each shift
Employeesb
Group R-1
Quarterly on each shift
Employees
Group R-4
Quarterly on each shift
Employeesb
The frequency shall be allowed to be modified in accordance with Section
5B.8.3.2.
Fire and evacuation drills in residential care assisted living facilities shall
include complete evacuation of the premises in accordance with Section
5B.8.10.5. Where occupants receive habilitation or rehabilitation training, fire
prevention and fire safety practices shall be included as part of the training
program.
5B.5.7
Initiation. Where a fire alarm system is provided, emergency evacuation drills
shall be initiated by activating the fire alarm system.
5B.5.8
Accountability. As building occupants arrive at the assembly point, efforts shall
be made to determine if all occupants have been successfully evacuated or have
been accounted for.
5B.5.9
Recall and reentry. An electrically or mechanically operated signal used to recall
occupants after an evacuation shall be separate and distinct from the signal used to
initiate the evacuation. The recall signal initiation means shall be manually
operated and under the control of the person in charge of the premises or the
official in charge of the incident. No one shall reenter the premises until authorized
to do so by the official in charge.
SECTION 5B.6
EMPLOYEE TRAINING AND RESPONSE PROCEDURES
5B.6.1
General. Employees in the occupancies listed in Section 5B.4.2 shall be trained in
the fire emergency procedures described in their fire evacuation and fire safety
plans. Training shall be based on these plans and as described in Section 5B.4.3.
5B.6.2
Frequency. Employees shall receive training in the contents of fire safety and
evacuation plans and their duties as part of new employee orientation and at least
annually thereafter. Records shall be kept and made available to the building
official upon request.
5B.6.3
Employee training program. Employees shall be trained in fire prevention,
evacuation and fire safety in accordance with Sections 5B.6.3.1 through 5B.6.3.3.
Fire prevention training. Employees shall be apprised of the fire hazards of the
5B.6.3.1
SBC 801
2007
5/15
GENERAL PRECAUTIONS AGAINST FIRE
5B.6.3.2
5B.6.3.3
materials and processes to which they are exposed. Each employee shall be
instructed in the proper procedures for preventing fires in the conduct of their
assigned duties.
Evacuation training. Employees shall be familiarized with the fire alarm and
evacuation signals, their assigned duties in the event of an alarm or emergency,
evacuation routes, areas of refuge, exterior assembly areas, and procedures for
evacuation.
Fire safety training. Employees assigned fire-fighting duties shall be trained to
know the locations and proper use of portable fire extinguishers or other manual
fire-fighting equipment and the protective clothing or equipment required for its
safe and proper use.
SECTION 5B.7
HAZARD COMMUNICATION
5B.7.1
General. The provisions of Sections 5B.7.2 through 5B.7.7 shall be applicable
where hazardous materials subject to permits under Section 25.1.5 are located on
the premises or where required by the building official.
5B.7.2
Material Safety Data Sheets. Material Safety Data Sheets (MSDS) for all
hazardous materials shall be readily available on the premises.
5B.7.3
Identification. Individual containers of hazardous materials, cartons or packages
shall be marked or labeled in accordance with applicable local regulations.
Buildings, rooms and spaces containing hazardous materials shall be identified by
hazard warning signs in accordance with Section 25.3.5.
5B.7.4
Training. Persons responsible for the operation of areas in which hazardous
materials are stored, dispensed, handled or used shall be familiar with the chemical
nature of the materials and the appropriate mitigating actions necessary in the
event of a fire, leak or spill. Responsible persons shall be designated and trained to
be liaison personnel for the fire department. These persons shall aid the fire
department in preplanning emergency responses and identification of the locations
where hazardous materials are located, and shall have access to Material Safety
Data Sheets and be knowledgeable in the site emergency response procedures.
5B.7.5
Hazardous Materials Inventory Statement. Where required by the building
official, each application for a permit shall include a Hazardous Materials
Inventory Statement (HMIS) in accordance with Section 25.1.5.2.
5B.7.6
Hazardous Materials Management Plan. Where required by the building
official, each application for a permit shall include a Hazardous Materials
Management Plan (HMMP) in accordance with Section 25.1.5.1. The building
official is authorized to accept a similar plan required by other regulations.
5B.7.7
Facility closure plans. The permit holder or applicant shall submit to the building
official a facility closure plan in accordance with Section 25.1.6.3 to terminate
storage, dispensing, handling or use of hazardous materials.
SBC 801
2007
5/16
GENERAL PRECAUTIONS AGAINST FIRE
SECTION 5B.8
USE AND OCCUPANCY-RELATED REQUIREMENTS
5B.8.1
General. In addition to the other requirements of this section, the provisions of
this section are applicable to specific occupancies listed herein.
5B.8.2
Group A occupancies. Group A occupancies shall comply with the requirements
of Sections 5B.8.2.1 and 5B.8.2.2 and Sections 5B.1 through 5B.6.
Seating plan. The fire safety and evacuation plans for assembly occupancies shall
include the information required by Section 5B.4.3 and a detailed seating plan,
occupant load, and occupant load limit. Deviations from the approved plans shall
be allowed provided the occupant load limit for the occupancy is not exceeded and
the aisles and exit access ways remain unobstructed.
Announcements. In theaters, motion picture theaters, auditoriums and similar
assembly occupancies in Group A used for non-continuous programs, an audible
announcement shall be made not more than 10 minutes prior to the start of each
program to notify the occupants of the location of the exits to be used in the event
of a fire or other emergency.
Exception: In motion picture theaters, the announcement is allowed to be
projected upon the screen in a manner approved by the building official.
5B.8.2.1
5B.8.2.2
5B.8.3
5B.8.3.1
5B.8.3.2
5B.8.3.3
5B.8.3.4
5B.8.4
5B.8.4.1
5B.8.4.2
5B.8.4.3
SBC 801
Group E occupancies. Group E occupancies shall comply with the requirements
of Sections 5B.8.3.1 through 5B.8.3.4 and Sections 5B.1 through 5B.6.
First emergency evacuation drill. The first emergency evacuation drill of each
school year shall be conducted within 10 days of the beginning of classes.
Emergency evacuation drill deferral. In severe climates, the building official
shall have the authority to modify the emergency evacuation drill frequency
specified in Section 5B.5.2.
Time of day. Emergency evacuation drills shall be conducted at different hours of
the day or evening, during the changing of classes, when the school is at assembly,
during the recess or gymnastic periods, or during other times to avoid distinction
between drills and actual fires.
Assembly points. Outdoor assembly areas shall be designated and shall be located
a safe distance from the building being evacuated so as to avoid interference with
fire department operations. The assembly areas shall be arranged to keep each
class separate to provide accountability of all individuals.
Group H-5 occupancies. Group H-5 occupancies shall comply with the
requirements of Sections 5B.8.4.1 through 5B.8.4.4 and Sections 5B.1 through
5B.7.
Plans and diagrams. In addition to the requirements of Section 5B.4 and Section
5B.7.6, plans and diagrams shall be maintained in approved locations indicating
the approximate plan for each area, the amount and type of HPM stored, handled
and used, locations of shutoff valves for HPM supply piping, emergency telephone
locations and locations of exits.
Plan updating. The plans and diagrams required by Section 5B.8.4.1 shall be
maintained up to date and the building official and fire department shall be
informed of all major changes.
Emergency response team. Responsible persons shall be designated the on-site
emergency response team and trained to be liaison personnel for the fire
department. These persons shall aid the fire department in preplanning emergency
responses, identifying locations where HPM is stored, handled and used, and be
2007
5/17
GENERAL PRECAUTIONS AGAINST FIRE
5B.8.4.4
5B.8.5
5B.8.5.1
5B.8.5.2
5B.8.5.3
5B.8.5.4
5B.8.5.5
5B.8.6
5B.8.6.1
5B.8.6.2
5B.8.7
5B.8.7.1
5B.8.7.2
SBC 801
familiar with the chemical nature of such material. An adequate number of
personnel for each work shift shall be designated.
Emergency drills. Emergency drills of the on-site emergency response team shall
be conducted on a regular basis but not less than once every three months. Records
of drills conducted shall be maintained.
Group I-1 occupancies. Group I-1 occupancies shall comply with the
requirements of Sections 5B.8.5.1 through 5B.8.5.5 and Sections 5B.1 through
5B.6.
Fire safety and evacuation plan. The fire safety and evacuation plan required by
Section 5B.4 shall include special staff actions including fire protection procedures
necessary for residents and shall be amended or revised upon admission of any
resident with unusual needs.
Staff training. Employees shall be periodically instructed and kept informed of
their duties and responsibilities under the plan. Such instruction shall be reviewed
by the staff at least every two months. A copy of the plan shall be readily available
at all times within the facility.
Resident training. Residents capable of assisting in their own evacuation shall be
trained in the proper actions to take in the event of a fire. The training shall include
actions to take if the primary escape route is blocked. Where the resident is given
rehabilitation or habilitation training, training in fire prevention and actions to take
in the event of a fire shall be a part of the rehabilitation training program.
Residents shall be trained to assist each other in case of fire to the extent their
physical and mental abilities permit them to do so without additional personal risk.
Drill frequency. Emergency evacuation drills shall be conducted at least six times
per year, two times per year on each shift. Twelve drills shall be conducted in the
first year of operation. Drills are not required to comply with the time
requirements of Section 5B.5.4.
Resident participation. Emergency evacuation drills shall involve the actual
evacuation of all residents to a selected assembly point.
Group I-2 occupancies. Group I-2 occupancies shall comply with the
requirements of Sections 5B.8.6.1 and 5B.8.6.2 and Sections 5B.1 through 5B.6.
Drills are not required to comply with the time requirements of Section 5B.5.4.
Evacuation not required. During emergency evacuation drills, the movement of
patients to safe areas or to the exterior of the building is not required.
Coded alarm signal. When emergency evacuation drills are conducted after
visiting hours or when patients or residents are expected to be asleep, a coded
announcement is allowed instead of audible alarms.
Group I-3 occupancies. Group I-3 occupancies shall comply with the
requirements of Sections 5B.8.7.1 through 5B.8.7.4 and Sections 5B.1 through
5B.6.
Employee training. Employees shall be instructed in the proper use of portable
fire extinguishers and other manual fire suppression equipment. Training of new
staff shall be provided promptly upon entrance on duty. Refresher training shall be
provided at least annually.
Staffing. Group I-3 occupancies shall be provided with 24-hour staffing. Staff
shall be within three floors or 91.5 m horizontal distance of the access door of each
resident housing area. In Use Conditions 3, 4 and 5, as defined in Chapter 1, the
arrangement shall be such that the staff involved can start release of locks
necessary for emergency evacuation or rescue and initiate other necessary
2007
5/18
GENERAL PRECAUTIONS AGAINST FIRE
5B.8.7.3
5B.8.7.4
5B.8.8
5B.8.8.1
5B.8.8.2
5B.8.8.3
5B.8.9
5B.8.9.1
5B.8.9.2
5B.8.9.3
5B.8.10
5B.8.10.1
5B.8.10.2
5B.8.10.3
SBC 801
emergency actions within 2 minutes of an alarm.
Exception: Staff shall not be required to be within three floors or 91.5 m in areas
in which all locks are unlocked remotely and automatically in accordance with
Section 2.21 of SBC 201.
Notification. Provisions shall be made for residents in Use Conditions 3, 4 and 5,
as defined in Chapter 1, to readily notify staff of an emergency.
Keys. Keys necessary for unlocking doors installed in a means of egress shall be
individually identifiable by both touch and sight.
Group R-1 occupancies. Group R-1 occupancies shall comply with the
requirements of Sections 5B.8.8.1 through 5B.8.8.3 and Sections 5B.1 through
5B.6.
Evacuation diagrams. A diagram depicting two evacuation routes shall be posted
on or immediately adjacent to every required egress door from each hotel, motel or
dormitory guestroom.
Emergency duties. Upon discovery of a fire or suspected fire, hotel, motel and
dormitory employees shall perform the following duties:
1. Activate the fire alarm system, where provided.
2. Notify the public fire department.
3. Take other action as previously instructed.
Fire safety and evacuation instructions. Information shall be provided in the fire
safety and evacuation plan required by Section 5B.4 to allow guests to decide
whether to evacuate to the outside, evacuate to an area of refuge, remain in place,
or any combination of the three.
Group R-2 occupancies. Group R-2 occupancies shall comply with the
requirements of Sections 5B.8.9.1 through 5B.8.9.3 and Sections 5B.1 through
5B.6.
Emergency guide. A fire emergency guide shall be provided which describes the
location, function and use of fire protection equipment and appliances accessible
to residents, including fire alarm systems, smoke alarms, and portable fire
extinguishers. The guide shall also include an emergency evacuation plan for each
dwelling unit.
Maintenance. Emergency guides shall be reviewed and approved in accordance
with Section 5B.1.2.
Distribution. A copy of the emergency guide shall be given to each tenant prior to
initial occupancy.
Group R-4 occupancies. Group R-4 occupancies shall comply with the
requirements of Sections 5B.8.10.1 through 5B.8.10.5 and Sections 5B.1 through
5B.6.
Fire safety and evacuation plan. The fire safety and evacuation plan required by
Section 5B.4 shall include special staff actions, including fire protection
procedures necessary for residents, and shall be amended or revised upon
admission of a resident with unusual needs.
Staff training. Employees shall be periodically instructed and kept informed of
their duties and responsibilities under the plan. Such instruction shall be reviewed
by the staff at least every two months. A copy of the plan shall be readily available
at all times within the facility.
Resident training. Residents capable of assisting in their own evacuation shall be
trained in the proper actions to take in the event of a fire. The training shall include
actions to take if the primary escape route is blocked. Where the resident is given
2007
5/19
GENERAL PRECAUTIONS AGAINST FIRE
5B.8.10.4
5B.8.10.5
rehabilitation or habilitation training, training in fire prevention and actions to take
in the event of a fire shall be a part of the rehabilitation training program.
Residents shall be trained to assist each other in case of fire to the extent their
physical and mental abilities permit them to do so without additional personal risk.
Drill frequency. Emergency evacuation drills shall be conducted at least six times
per year, two times per year on each shift. Twelve drills shall be conducted in the
first year of operation. Drills are not required to comply with the time
requirements of Section 5B.5.4.
Resident participation. Emergency evacuation drills shall involve the actual
evacuation of all residents to a selected assembly point and shall provide residents
with experience in exiting through all required exits. All required exits shall be
used during emergency evacuation drills.
Exception: Actual exiting from windows shall not be required. Opening the
window and signaling for help shall be an acceptable alternative.
Covered mall buildings. Covered mall buildings shall comply with the provisions
of Sections 5B.8.11.1 through 5B.8.11.3.
5B.8.11.1 Lease plan. A lease plan shall be prepared for each covered mall building. The
plan shall include the following information in addition to that required by Section
5B.4.3.2:
1. Each occupancy, including identification of tenant.
2. Exits from each tenant space.
3. Fire protection features, including the following:
3.1 Fire department connections.
3.2 Fire command center.
3.3 Smoke management system controls.
3.4 Elevators and elevator controls.
3.5 Hose valves outlets.
3.6 Sprinkler and standpipe control valves.
3.7 Automatic fire-extinguishing system areas.
3.8 Automatic fire detector zones.
3.9 Fire barriers.
5B.8.11.1.1 Approval. The lease plan shall be submitted to the building official for approval,
and shall be maintained on site for immediate reference by responding fire service
personnel.
5B.8.11.1.2 Revisions. The lease plans shall be revised annually or as often as necessary to
keep them current. Modifications or changes in tenants or occupancies shall not be
made without prior approval of the building official and building official.
5B.8.11.2 Tenant identification. Each occupied tenant space provided with a secondary exit
to the exterior or exit corridor shall be provided with tenant identification by
business name and/or address. Letters and numbers shall be posted on the corridor
side of the door, be plainly legible and shall contrast with their background.
Exception: Tenant identification is not required for anchor stores.
5B.8.11.3 Maintenance. Unoccupied tenant spaces shall be:
1. Kept free from the storage of any materials.
2. Separated from the remainder of the building by partitions of at least 12.7-mmthick gypsum board or an approved equivalent to the underside of the ceiling of
the adjoining tenant spaces.
3. Without doors or other access openings other than one door that shall be kept
key locked in the closed position except during that time when opened for
inspection.
4. Kept free from combustible waste and bedroom-swept clean.
SBC 801
2007
5/20
5B.8.11
GENERAL PRECAUTIONS AGAINST FIRE
SECTION 5C
FIRE SERVICE FEATURES
SECTION 5C.1
GENERAL
5C.1.1
Scope. Fire service features for buildings, structures and premises shall comply
with this section.
5C.1.2
Permits. A permit shall be required as set forth in SBC 100.
5C.1.3
Construction documents. Construction documents for proposed fire apparatus
access, location of fire lanes and construction documents and hydraulic
calculations for fire hydrant systems shall be submitted to the Civil Defence for
review and approval prior to construction.
5C.1.4
Timing of installation. When fire apparatus access roads or a water supply for fire
protection is required to be installed, such protection shall be installed and made
serviceable prior to and during the time of construction except when approved
alternative methods of protection are provided. Temporary street signs shall be
installed at each street intersection when construction of new roadways allows
passage by vehicles in accordance with Section 5C.5.2.
SECTION 5C.2
DEFINITIONS
5C.2.1
Definitions. The following words and terms shall, for the purposes of this section
and as used elsewhere in these code requirements, have the meanings shown
herein.
FIRE APPARATUS ACCESS ROAD. A road that provides fire apparatus
access from a fire station to a facility, building or portion thereof. This is a general
term inclusive of all other terms such as fire lane, public street, private street,
parking lot lane and access roadway.
FIRE COMMAND CENTER. The principal attended or unattended location
where the status of the detection, alarm communications and control systems is
displayed, and from which the system(s) can be manually controlled.
CIVIL DEFENCE MASTER KEY. A limited issue key of special or controlled
design to be carried by Civil Defence officials in command which will open key
boxes on specified properties.
FIRE LANE. A road or other passageway developed to allow the passage of fire
apparatus. A fire lane is not necessarily intended for vehicular traffic other than
fire apparatus.
KEY BOX. A secure, tamperproof device with a lock operable only by a Civil
Defence master key, and containing building entry keys and other keys that may
be required for access in an emergency.
SBC 801
2007
5/21
GENERAL PRECAUTIONS AGAINST FIRE
SECTION 5C.3
FIRE APPARATUS ACCESS ROADS
5C.3.1
5C.3.1.1
5C.3.1.2
5C.3.1.3
5C.3.2
5C.3.2.1
5C.3.2.2
5C.3.2.3
5C.3.2.4
5C.3.2.5
5C.3.2.6
5C.3.2.7
SBC 801
Where required. Fire apparatus access roads shall be provided and maintained in
accordance with Sections 5C.3.1.1 through 5C.3.1.3.
Buildings and facilities. Approved fire apparatus access roads shall be provided
for every facility, building or portion of a building hereafter constructed or moved
into or within the jurisdiction. The fire apparatus access road shall comply with the
requirements of this section and shall extend to within 45.7 m of all portions of the
facility and all portions of the exterior walls of the first story of the building as
measured by an approved route around the exterior of the building or facility.
Exception: The building official is authorized to increase the dimension of 45.7 m
where:
1. The building is equipped throughout with an approved automatic sprinkler
system installed in accordance with Section 7.3.3.1.1, 7.3.3.1.2 or 7.3.3.1.3.
2. Fire apparatus access roads cannot be installed because of location on property,
topography, water ways, nonnegotiable grades or other similar conditions, and
an approved alternative means of fire protection is provided.
3. There are not more than two Group R-3 or Group U occupancies.
Additional access. The building official is authorized to require more than one
fire apparatus access road based on the potential for impairment of a single road by
vehicle congestion, condition of terrain, climatic conditions or other factors that
could limit access.
High-piled storage. Civil Defence vehicle access to buildings used for high-piled
combustible storage shall comply with the applicable provisions of Chapter 21.
Specifications. Fire apparatus access roads shall be installed and arranged in
accordance with Sections 5C.3.2.1 through 5C.3.2.7.
Dimensions. Fire apparatus access roads shall have an unobstructed width of not
less than 6.1 m, except for approved security gates in accordance with Section
5C.3.6, and an unobstructed vertical clearance of not less than 4.1 m.
Authority. The building official shall have the authority to require an increase in
the minimum access widths where they are inadequate for fire or rescue
operations.
Surface. Fire apparatus access roads shall be designed and maintained to support
the imposed loads of fire apparatus and shall be surfaced so as to provide allweather driving capabilities.
Turning radius. The required turning radius of a fire apparatus access road shall
be determined by the building official.
Dead ends. Dead-end fire apparatus access roads in excess of 45.7 m in length
shall be provided with an approved area for turning around fire apparatus.
Bridges and elevated surfaces. Where a bridge or an elevated surface is part of a
fire apparatus access road, the bridge shall be constructed and maintained in
accordance with MOT standards or (AASHTO Standard Specification for
Highway Bridges). Bridges and elevated surfaces shall be designed for a live load
sufficient to carry the imposed loads of fire apparatus. Vehicle load limits shall be
posted at both entrances to bridges when required by the building official. Where
elevated surfaces designed for emergency vehicle use are adjacent to surfaces
which are not designed for such use, approved barriers, approved signs or both
shall be installed and maintained when required by the building official.
Grade. The grade of the fire apparatus access road shall be within the limits
established by the building official based on the Civil Defence’s apparatus.
2007
5/22
GENERAL PRECAUTIONS AGAINST FIRE
5C.3.3
Marking. Where required by the building official, approved signs or other
approved notices shall be provided for fire apparatus access roads to identify such
roads or prohibit the obstruction thereof. Signs or notices shall be maintained in a
clean and legible condition at all times and be replaced or repaired when necessary
to provide adequate visibility.
5C.3.4
Obstruction of fire apparatus access roads. Fire apparatus access roads shall not
be obstructed in any manner, including the parking of vehicles. The minimum
widths and clearances established in Section 5C.3.2.1 shall be maintained at all
times.
5C.3.5
Required gates or barricades. The building official is authorized to require the
installation and maintenance of gates or other approved barricades across fire
apparatus access roads, trails or other accessways, not including public streets,
alleys or highways.
Secured gates and barricades. When required, gates and barricades shall be
secured in an approved manner. Roads, trails and other accessways that have been
closed and obstructed in the manner prescribed by Section 5C.3.5 shall not be
trespassed on or used unless authorized by the owner and the building official.
Exception: The restriction on use shall not apply to public officers acting within
the scope of duty.
5C.3.5.1
5C.3.6
Security gates. The installation of security gates across a fire apparatus access
road shall be approved by the fire chief. Where security gates are installed, they
shall have an approved means of emergency operation. The security gates and the
emergency operation shall be maintained operational at all times.
SECTION 5C.4
ACCESS TO BUILDING OPENINGS AND ROOFS
5C.4.1
Required access. Exterior doors and openings required by these code
requirements or the SBC 201 shall be maintained readily accessible for emergency
access by the Civil Defence. An approved access walkway leading from fire
apparatus access roads to exterior openings shall be provided when required by the
building official.
5C.4.2
Maintenance of exterior doors and openings. Exterior doors and their function
shall not be eliminated without prior approval. Exterior doors that have been
rendered nonfunctional and that retain a functional door exterior appearance shall
have a sign affixed to the exterior side of the door with the words THIS DOOR
BLOCKED. The sign shall consist of letters having a principal stroke of not less
than 19.1 mm wide and at least 150 mm high on a contrasting background.
Required Civil Defence access doors shall not be obstructed or eliminated. Exit
and exit access doors shall comply with Chapter 8. Access doors for high-piled
combustible storage shall comply with Section 21.6.6.1.
5C.4.3
Stairway access to roof. New buildings four or more stories in height, except
those with a roof slope greater than four units vertical in 12 units horizontal (33.3
percent slope), shall be provided with a stairway to the roof. Stairway access to the
roof shall be in accordance with Section 8.9.12. Such stairway shall be marked at
street and floor levels with a sign indicating that the stairway continues to the roof.
2007
5/23
SBC 801
GENERAL PRECAUTIONS AGAINST FIRE
Where roofs are used for roof gardens or for other purposes, stairways shall be
provided as required for such occupancy classification.
SECTION 5C.5
PREMISES IDENTIFICATION
5C.5.1
Address numbers. New and existing buildings shall have approved address
numbers, building numbers or approved building identification placed in a position
that is plainly legible and visible from the street or road fronting the property.
These numbers shall contrast with their background. Address numbers shall be
Arabic numerals or alphabet letters. Numbers shall be a minimum of 100 mm high
with a minimum stroke width of 12.7 mm.
5C.5.2
Street or road signs. Streets and roads shall be identified with approved signs.
Temporary signs shall be installed at each street intersection when construction of
new roadways allows passage by vehicles. Signs shall be of an approved size,
weather resistant and be maintained until replaced by permanent signs.
SECTION 5C.6
KEY BOXES
5C.6.1
5C.6.1.1
5C.6.2
Where required. Where access to or within a structure or an area is restricted
because of secured openings or where immediate access is necessary for lifesaving or fire-fighting purposes, the building official is authorized to require a key
box to be installed in an approved location. The key box shall be of an approved
type and shall contain keys to gain necessary access as required by the building
official.
Locks. An approved lock shall be installed on gates or similar barriers when
required by the building official.
Key box maintenance. The operator of the building shall immediately notify the
building official and provide the new key when a lock is changed or rekeyed. The
key to such lock shall be secured in the key box.
SECTION 5C.7
HAZARDS TO FIRE FIGHTERS
5C.7.1
Trapdoors to be closed. Trapdoors and scuttle covers, other than those that are
within a dwelling unit or automatically operated, shall be kept closed at all times
except when in use.
5C.7.2
5C.7.2.1
Shaftway markings. Vertical shafts shall be identified as required by this section.
Exterior access to shaftways. Outside openings accessible to the Civil Defence
and which open directly on a hoistway or shaftway communicating between two
or more floors in a building shall be plainly marked with the word SHAFTWAY
in red letters at least 150 mm high on a white background. Such warning signs
shall be placed so as to be readily discernible from the outside of the building.
Interior access to shaftways. Door or window openings to a hoistway or
shaftway from the interior of the building shall be plainly marked with the word
SHAFTWAY in red letters at least 150 mm high on a white background. Such
warning signs shall be placed so as to be readily discernible.
Exception: Marking shall not be required on shaftway openings which are readily
2007
5/24
5C.7.2.2
SBC 801
GENERAL PRECAUTIONS AGAINST FIRE
discernible as openings onto a shaftway by the construction or arrangement.
5C.7.3
Pitfalls. The intentional design or alteration of buildings to disable, injure, maim
or kill intruders is prohibited. No person shall install and use firearms, sharp or
pointed objects, razor wire, explosives, flammable or combustible liquid
containers, or dispensers containing highly toxic, toxic, irritant or other hazardous
materials in a manner which may passively or actively disable, injure, maim or kill
a fire fighter who forcibly enters a building for the purpose of controlling or
extinguishing a fire, rescuing trapped occupants or rendering other emergency
assistance.
SECTION 5C.8
FIRE PROTECTION WATER SUPPLIES
5C.8.1
Required water supply. An approved water supply capable of supplying the
required fire flow for fire protection shall be provided to premises upon which
facilities, buildings or portions of buildings are hereafter constructed or moved
into or within the jurisdiction.
5C.8.2
Type of water supply. A water supply shall consist of reservoirs, pressure tanks,
elevated tanks, water mains or other fixed systems capable of providing the
required fire flow.
Private fire service mains. Private fire service mains and appurtenances shall be
installed in accordance with NFPA 24.
Water tanks. Water tanks for private fire protection shall be installed in
accordance with NFPA 22.
5C.8.2.1
5C.8.2.2
5C.8.3
Fire flow. Fire flow requirements for buildings or portions of buildings and
facilities shall be determined by an approved method.
5C.8.4
Water supply test. The building official shall be notified prior to the water supply
test. Water supply tests shall be witnessed by the building official or approved
documentation of the test shall be provided to the building official prior to final
approval of the water supply system.
5C.8.5
Fire hydrant systems. Fire hydrant systems shall comply with Sections 5C.8.5.1
through 5C.8.5.6.
Where required. Where a portion of the facility or building hereafter constructed
or moved into or within the jurisdiction is more than 122 m from a hydrant on a
fire apparatus access road, as measured by an approved route around the exterior
of the facility or building, on-site fire hydrants and mains shall be provided where
required by the building official.
Exceptions:
1. For Group R-3 and Group U occupancies, the distance requirement shall be
183 m.
2. For buildings equipped throughout with an approved automatic sprinkler
system installed in accordance with Section 7.3.3.1.1 or 7.3.3.1.2, the distance
requirement shall be 183 m.
Inspection, testing and maintenance. Fire hydrant systems shall be subject to
periodic tests as required by the building official. Fire hydrant systems shall be
maintained in an operative condition at all times and shall be repaired where
defective. Additions, repairs, alterations and servicing shall comply with approved
2007
5/25
5C.8.5.1
5C.8.5.2
SBC 801
GENERAL PRECAUTIONS AGAINST FIRE
5C.8.5.3
5C.8.5.4
5C.8.5.5
5C.8.5.6
standards.
Private fire service mains and water tanks. Private fire service mains and water
tanks shall be periodically inspected, tested and maintained in accordance with
NFPA 25 at the following intervals:
1. Private fire hydrants (all types): Inspection annually and after each operation;
flow test and maintenance annually.
2. Fire service main piping: Inspection of exposed, annually; flow test every 5
years.
3. Fire service main piping strainers: Inspection and maintenance after each use.
Obstruction. Posts, fences, vehicles, growth, trash, storage and other materials or
objects shall not be placed or kept near fire hydrants, Civil Defence inlet
connections or fire protection system control valves in a manner that would
prevent such equipment or fire hydrants from being immediately discernible. The
Civil Defence shall not be deterred or hindered from gaining immediate access to
fire protection equipment or fire hydrants.
Clear space around hydrants. A 900 mm clear space shall be maintained around
the circumference of fire hydrants except as otherwise required or approved.
Physical protection. Where fire hydrants are subject to impact by a motor vehicle,
guard posts or other approved means shall comply with Section 5A.12.
SECTION 5C.9
FIRE COMMAND CENTER
5C.9.1
SBC 801
Features. Where required by other sections of these code requirements and in all
buildings classified as high-rise buildings by the SBC, a fire command center for
Civil Defence operations shall be provided. The location and accessibility of the
fire command center shall be approved by the Civil Defence. The fire command
center shall be separated from the remainder of the building by not less than a 12
hour fire-resistance-rated fire barrier. The room shall be a minimum of 9 m with a
minimum dimension of 2.4 m. A layout of the fire command center and all features
required by this section to be contained therein shall be submitted for approval
prior to installation. The fire command center shall comply with NFPA 72 and
shall contain the following features:
1.
The emergency voice/alarm communication system unit.
2.
The Civil Defence communications system.
3.
Fire-detection and alarm system annunciator system.
4.
Annunciator visually indicating the location of the elevators and whether they
are operational.
5.
Status indicators and controls for air-handling systems.
6.
The fire-fighter’s control panel required by Section 7.9.16 for smoke control
systems installed in the building.
7.
Controls for unlocking stairway doors simultaneously.
8.
Sprinkler valve and water-flow detector display panels.
9.
Emergency and standby power status indicators.
10. A telephone for Civil Defence use with controlled access to the public
telephone system.
11. Fire pump status indicators.
12. Schematic building plans indicating the typical floor plan and detailing the
building core, means of egress, fire protection systems, fire-fighting
equipment and Civil Defence access.
13. Work table.
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GENERAL PRECAUTIONS AGAINST FIRE
14.
15.
Generator supervision devices, manual start and transfer features.
Public address system, where specifically required by other sections of these
code requirements.
SECTION 5C.10
CIVIL DEFENCE ACCESS TO EQUIPMENT
5C.10.1
Identification. Fire protection equipment shall be identified in an approved
manner. Rooms containing controls for air-conditioning systems, sprinkler risers
and valves, or other fire detection, suppression or control elements shall be
identified for the use of the Civil Defence. Approved signs required to identify fire
protection equipment and equipment location, shall be constructed of durable
materials, permanently installed and readily visible.
SECTION 5D
BUILDING SERVICES AND SYSTEMS
SECTION 5D.1
GENERAL
5D.1.1
Scope. The provisions of this section shall apply to the installation, operation and
maintenance of fuel-fired appliances and heating systems, emergency and standby
power systems, electrical systems and equipment, mechanical refrigeration
systems, elevator recall, stationary lead-acid battery systems and commercial
kitchen hoods.
5D.1.2
Permits. Permits shall be obtained for refrigeration systems and battery systems as
set forth in SBC 100.
SECTION 5D.2
DEFINITIONS
5D.2.1
Definitions. The following words and terms shall, for the purposes of this section
and as used elsewhere in these code requirements, have the meanings shown
herein.
BATTERY, LEAD ACID. A group of electrochemical cells interconnected to
supply a nominal voltage of DC power to a suitably connected electrical load. The
number of cells connected in series determines the nominal voltage rating of the
battery. The size of the cells determines the discharge capacity of the entire
battery.
BATTERY SYSTEM, STATIONARY LEAD ACID. A system which consists
of three interconnected subsystems:
1. A lead-acid battery.
2. A battery charger.
3. A collection of rectifiers, inverters, converters, and associated electrical
equipment as required for a particular application.
SBC 801
COMMERCIAL COOKING APPLIANCES. Appliances used in a commercial
food service establishment for heating or cooking food and which produce grease
vapors, steam, fumes, smoke or odors that are required to be removed through a
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5/27
GENERAL PRECAUTIONS AGAINST FIRE
local exhaust ventilation system. Such appliances include deep fat fryers; upright
broilers; griddles; broilers; steam-jacketed kettles; hot-top ranges; under-fired
broilers (charbroilers); ovens; barbecues; rotisseries; and similar appliances. For
the purpose of this definition, a food service establishment shall include any
building or a portion thereof used for the preparation and serving of food.
HOOD. An air-intake device used to capture by entrapment, impingement,
adhesion or similar means, grease and similar contaminants before they enter a
duct system.
Type I. A kitchen hood for collecting and removing grease vapors and smoke.
REFRIGERANT. The fluid used for heat transfer in a refrigerating system; the
refrigerant absorbs heat and transfers it at a higher temperature and a higher
pressure, usually with a change of state.
REFRIGERATION SYSTEM. A combination of interconnected refrigerantcontaining parts constituting one closed refrigerant circuit in which a refrigerant is
circulated for the purpose of extracting heat.
VALVE-REGULATED LEAD-ACID (VRLA) BATTERY. A lead-acid battery
consisting of sealed cells furnished with a valve that opens to vent the battery
whenever the internal pressure of the battery exceeds the ambient pressure by a set
amount. In VRLA batteries, the liquid electrolyte in the cells is immobilized in an
absorptive glass mat (AGM cells or batteries) or by the addition of a gelling agent
(gel cells or gelled batteries).
VENTED (FLOODED) LEAD-ACID BATTERY. A lead-acid battery
consisting of cells that have electrodes immersed in liquid electrolyte. Flooded
lead-acid batteries have a provision for the user to add water to the cell and are
equipped with a flame-arresting vent which permits the escape of hydrogen and
oxygen gas from the cell in a diffused manner such that a spark, or other ignition
source, outside the cell will not ignite the gases inside the cell.
SECTION 5D.3
FUEL-FIRED APPLIANCES
5D.3.1
5D.3.1.1
5D.3.1.2
5D.3.1.3
5D.3.1.4
SBC 801
Installation. The installation of nonportable fuel gas appliances and systems shall
be carried out by an approved method. The installation of all other fuel-fired
appliances, other than internal combustion engines, oil lamps and portable devices
such as blow torches, melting pots and weed burners, shall comply with this
section and the SBC 501.
Manufacturer’s instructions. The installation shall be made in accordance with
the manufacturer’s instructions and applicable local rules and regulations. Where it
becomes necessary to change, modify, or alter a manufacturer’s instructions in any
way, written approval shall first be obtained from the manufacturer.
Approval. The design, construction and installation of fuel-fired appliances shall
be in accordance with the SBC 100 and the SBC 501.
Electrical wiring and equipment. Electrical wiring and equipment used in
connection with oil-burning equipment shall be installed and maintained in
accordance with Section 5D.5 and the SBC 401.
Fuel oil. The grade of fuel oil used in a burner shall be that for which the burner is
approved and as stipulated by the burner manufacturer. Oil containing gasoline
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GENERAL PRECAUTIONS AGAINST FIRE
shall not be used. Waste crankcase oil shall be an acceptable fuel in Group F, M
and S occupancies, when utilized in equipment listed for use with waste oil and
when such equipment is installed in accordance with the manufacturer’s
instructions and the terms of its listing.
5D.3.1.5
Access. The installation shall be readily accessible for cleaning hot surfaces;
removing burners; replacing motors, controls, air filters, chimney connectors, draft
regulators, and other working parts; and for adjusting, cleaning and lubricating
parts.
5D.3.1.6
Testing, diagrams and instructions. After installation of the oil-burning
equipment, operation and combustion performance tests shall be conducted to
determine that the burner is in proper operating condition and that all accessory
equipment, controls, and safety devices function properly.
5D.3.1.6.1 Diagrams. Contractors installing industrial oil-burning systems shall furnish not
less than two copies of diagrams showing the main oil lines and controlling valves,
one copy of which shall be posted at the oil-burning equipment and another at an
approved location that will be accessible in case of emergency.
5D.3.1.6.2 Instructions. After completing the installation, the installer shall instruct the
owner or operator in the proper operation of the equipment. The installer shall also
furnish the owner or operator with the name and telephone number of persons to
contact for technical information or assistance and routine or emergency services.
5D.3.1.7
Clearances. Working clearances between oil-fired appliances and electrical
panelboards and equipment shall be in accordance with the SBC 401. Clearances
between oil-fired equipment and oil supply tanks shall be in accordance with
NFPA 31.
5D.3.2
Chimneys. Masonry chimneys shall be constructed in accordance with the SBC
305. Factory-built chimneys shall be installed in accordance with the SBC 501.
Metal chimneys shall be constructed and installed in accordance with NFPA 211.
5D.3.3
Fuel oil storage systems. Fuel oil storage systems shall be installed in accordance
with these code requirements. Fuel oil piping systems shall be installed in
accordance with the SBC 501.
Maximum outside fuel oil storage above ground. Where connected to a fuel-oil
piping system, the maximum amount of fuel oil storage allowed outside above
ground without additional protection shall be 2,500 L. The storage of fuel oil
above ground in quantities exceeding 2,500 L shall comply with NFPA 31.
Maximum inside fuel oil storage. Where connected to a fuel-oil piping system,
the maximum amount of fuel oil storage allowed inside any building shall be 2,500
L. Where the amount of fuel oil stored inside a building exceeds 2,500 L, the
storage area shall be in compliance with the SBC 201.
Underground storage of fuel oil. The storage of fuel oil in underground storage
tanks shall comply with NFPA 31.
5D.3.3.1
5D.3.3.2
5D.3.3.3
5D.3.4
5D.3.4.1
5D.3.5
SBC 801
Portable unvented heaters. Portable unvented fuel-fired heating equipment shall
be prohibited in occupancies in Groups A, E, I, R-1, R-2, R-3 and R-4.
Exception: Listed and approved unvented fuel-fired heaters in one- and twofamily dwellings.
Prohibited locations. Unvented fuel-fired heating equipment shall not be located
in, or obtain combustion air from, any of the following rooms or spaces: sleeping
rooms, bathrooms, toilet rooms or storage closets.
Heating appliances. Heating appliances shall be listed and shall comply with this
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GENERAL PRECAUTIONS AGAINST FIRE
5D.3.5.1
5D.3.5.2
5D.3.6
5D.3.6.1
5D.3.6.2
5D.3.6.3
5D.3.6.4
5D.3.6.5
5D.3.7
5D.3.7.1
5D.3.8
5D.3.8.1
5D.3.8.2
5D.3.8.3
SBC 801
section.
Guard against contact. The heating element or combustion chamber shall be
permanently guarded so as to prevent accidental contact by persons or material.
Heating appliance installation. Heating appliances shall be installed in
accordance with the manufacturer’s instructions, the SBC 401, and the SBC 501.
Chimneys and appliances. Chimneys, incinerators, smokestacks or similar
devices for conveying smoke or hot gases to the outer air and the stoves, furnaces,
fireboxes or boilers to which such devices are connected, shall be maintained so as
not to create a fire hazard.
Masonry chimneys. Masonry chimneys that, upon inspection, are found to be
without a flue liner and that have open mortar joints which will permit smoke or
gases to be discharged into the building, or which are cracked as to be dangerous,
shall be repaired or relined with a listed chimney liner system installed in
accordance with the manufacturer’s installation instructions or a flue lining system
installed in accordance with the SBC requirements and appropriate for the
intended class of chimney service.
Metal chimneys. Metal chimneys which are corroded or improperly supported
shall be repaired or replaced.
Decorative shrouds. Decorative shrouds installed at the termination of factorybuilt chimneys shall be removed except where such shrouds are listed and labeled
for use with the specific factory-built chimney system and are installed in
accordance with the chimney manufacturer’s installation instructions.
Factory-built chimneys. Existing factory-built chimneys that are damaged,
corroded or improperly supported shall be repaired or replaced.
Connectors. Existing chimney and vent connectors that are damaged, corroded or
improperly supported shall be repaired or replaced.
Discontinuing operation of unsafe heating appliances. The building official is
authorized to order that measures be taken to prevent the operation of any existing
stove, oven, furnace, incinerator, boiler or any other heat-producing device or
appliance found to be defective or in violation of code requirements for existing
appliances after giving notice to this effect to any person, owner, firm or agent or
operator in charge of the same. The building official is authorized to take measures
to prevent the operation of any device or appliance without notice when inspection
shows the existence of an immediate fire hazard or when imperiling human life.
The defective device shall remain withdrawn from service until all necessary
repairs or alterations have been made.
Unauthorized operation. It shall be a violation of these code requirements for
any person, user, firm or agent to continue the utilization of any device or
appliance (the operation of which has been discontinued or ordered discontinued
in accordance with Section 5D.3.7), unless written authority to resume operation is
given by the building official. Removing or breaking the means by which
operation of the device is prevented shall be a violation of these code
requirements.
Incinerators. Commercial, industrial and residential-type incinerators and
chimneys shall be constructed in accordance with the SBC 501.
Residential incinerators. Residential incinerators shall be of an approved type.
Spark arrestor. Incinerators shall be equipped with an effective means for
arresting sparks.
Restrictions. Where the building official determines that burning in incinerators
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GENERAL PRECAUTIONS AGAINST FIRE
5D.3.8.4
5D.3.8.5
5D.3.9
located within 152 m of mountainous, brush or grass-covered areas will create an
undue fire hazard because of atmospheric conditions, such burning shall be
prohibited.
Time of burning. Burning shall take place only during approved hours.
Discontinuance. The building official is authorized to require incinerator use to be
discontinued immediately if the building official determines that smoke emissions
are offensive to occupants of surrounding property or if the use of incinerators is
determined by the building official to constitute a hazardous condition.
Gas meters. Above-ground gas meters, regulators and piping subject to damage
shall be protected by a barrier complying with Section 5A.12 or otherwise
protected in an approved manner.
SECTION 5D.4
EMERGENCY AND STANDBY POWER SYSTEMS
5D.4.1
5D.4.1.1
5D.4.2
5D.4.2.1
5D.4.2.2
5D.4.2.3
5D.4.2.4
5D.4.2.5
5D.4.2.6
5D.4.2.7
5D.4.2.8
5D.4.2.9
5D.4.2.10
5D.4.2.11
SBC 801
Installation. Emergency and standby power systems shall be installed in
accordance with the SBC 401, NFPA 110 and NFPA 111. Existing installations
shall be maintained in accordance with the original approval.
Stationary generators. Stationary emergency and standby power generators
required by these code requirements shall be listed in accordance with UL 2200.
Where required. Emergency and standby power systems shall be provided where
required by Sections 5D.4.2.1 through 5D.4.2.18.
Group A occupancies. Emergency power shall be provided for emergency
voice/alarm communication systems in Group A occupancies in accordance with
Section 7.7.2.1.2.
Smoke control systems. Standby power shall be provided for smoke control
systems in accordance with Section 7.9.11.
Exit signs. Emergency power shall be provided for exit signs in accordance with
Section 8.11.5.3.
Means of egress illumination. Emergency power shall be provided for means of
egress illumination in accordance with Section 8.6.3.
Accessible means of egress elevators or platform lifts. Standby power shall be
provided for elevators or platform lifts that are part of an accessible means of
egress in accordance with Section 8.7.4 or 8.7.5, respectively.
Horizontal sliding doors. Standby power shall be provided for horizontal sliding
doors in accordance with Section 8.8.1.3.3.
Semiconductor fabrication facilities. Emergency power shall be provided for
semiconductor fabrication facilities in accordance with Section 16.3.15.
Membrane structures. Emergency power shall be provided for exit signs in
temporary tents and membrane structures in accordance with Section 22.3.12.6.1.
Standby power shall be provided for auxiliary inflation systems in permanent
membrane structures in accordance with the SBC requirements.
Hazardous materials. Emergency or standby power shall be provided in
occupancies with hazardous materials in accordance with Sections 25.4.7 and
25.5.1.5.
Highly toxic and toxic materials. Emergency power shall be provided for
occupancies with highly toxic or toxic materials in accordance with Sections
35.4.2.2.8 and 35.4.3.2.6.
Organic peroxides. Standby power shall be provided for occupancies with
organic peroxides in accordance with Section 37.4.1.11.
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5/31
GENERAL PRECAUTIONS AGAINST FIRE
5D.4.2.12
5D.4.2.13
5D.4.2.14
5D.4.2.14.1
5D.4.2.14.1.1
5D.4.2.14.1.2
5D.4.2.14.1.3
5D.4.2.14.2
5D.4.2.14.2.1
5D.4.2.14.3
5D.4.2.15
5D.4.2.15.1
5D.4.2.15.1.1
5D.4.2.15.1.2
SBC 801
Pyrophoric materials. Emergency power shall be provided for occupancies with
silane gas in accordance with Sections 39.6.2.3 and 39.6.4.3.
Covered mall buildings. Covered mall buildings exceeding 4,645 m2 shall be
provided with standby power systems which are capable of operating the
emergency voice/alarm communication.
High-rise buildings. Standby power, light and emergency systems in high-rise
buildings shall comply with the requirements of Sections 5D.4.2.14.1 through
5D.4.2.14.3.
Standby power. A standby power system shall be provided. Where the standby
system is a generator set inside a building, the system shall be located in a separate
room enclosed with 2-hour fire-resistance-rated fire barrier assemblies. System
supervision with manual start and transfer features shall be provided at the fire
command center.
Fuel supply. An on-premises fuel supply, sufficient for not less than 2-hour fulldemand operation of the system, shall be provided.
Exception: Where the system is supplied with pipeline natural gas and is
approved.
Capacity. The standby system shall have a capacity and rating that supplies all
equipment required to be operational at the same time. The generating capacity is
not required to be sized to operate all of the connected electrical equipment
simultaneously.
Connected facilities. Power and lighting facilities for the fire command center and
elevators specified in Sections 5B.3.8 and 5B.3.9, as applicable, and electrically
powered fire pumps required to maintain pressure, shall be transferable to the
standby source. Standby power shall be provided for at least one elevator to serve
all floors and be transferable to any elevator.
Separate circuits and fixtures. Separate lighting circuits and fixtures shall be
required to provide sufficient light with an intensity of not less than 11 lux
measured at floor level in all means of egress corridors, stairways, smoke proof
enclosures, elevator cars and lobbies, and other areas which are clearly a part of
the escape route.
Other circuits. Circuits supplying lighting for the fire command center and
mechanical equipment rooms shall be transferable to the standby source.
Emergency systems. Exit signs, exit illumination as required by Chapter 8, and
elevator car lighting are classified as emergency systems and shall operate within
10 seconds of failure of the normal power supply and shall be capable of being
transferred to the standby source.
Exception: Exit sign, exit and means of egress illumination are permitted to be
powered by a standby source in buildings of Group F and S occupancies.
Underground buildings. Emergency and standby power systems in underground
buildings covered in Chapter 2 of SBC 201 shall comply with Sections
5D.4.2.15.1 and 5D.4.2.15.2.
Standby power. A standby power system complying with the SBC 401 shall be
provided for standby power loads as specified in Section 5D.4.2.15.1.1.
Standby power loads. The following loads are classified as standby power loads:
1. Smoke control system.
2. Ventilation and automatic fire detection equipment for smokeproof enclosures.
3. Fire pumps.
4. Standby power shall be provided for elevators in accordance with the SBC 401
and 501.
Pickup time. The standby power system shall pick up its connected loads within
60 seconds of failure of the normal power supply.
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GENERAL PRECAUTIONS AGAINST FIRE
5D.4.2.15.2 Emergency power. An emergency power system complying with the SBC 401
5D.4.2.15.2.1
5D.4.2.16
5D.4.2.17
5D.4.2.18
5D.4.2.18.1
5D.4.2.18.2
5D.4.2.18.3
5D.4.2.18.4
5D.4.3
5D.4.3.1
5D.4.3.2
SBC 801
shall be provided for emergency power loads as specified in Section 5D.4.2.15.2.1.
Emergency power loads. The following loads are classified as emergency power
loads:
1. Emergency voice/alarm communication systems.
2. Fire alarm systems.
3. Automatic fire detection systems.
4. Elevator car lighting.
5. Means of egress lighting and exit sign illumination as required by Chapter 8.
Group I-3 occupancies. Power-operated sliding doors or power-operated locks
for swinging doors in Group I-3 occupancies shall be operable by a manual release
mechanism at the door, and either emergency power or a remote mechanical
operating release shall be provided.
Exception: Emergency power is not required in facilities where provisions for
remote locking and unlocking of occupied rooms in Occupancy Condition 4 are
not required as set forth in the SBC.
Airport traffic control towers. A standby power system shall be provided in
airport traffic control towers more than 19.8 m in height. Power shall be provided
to the following equipment:
1. Pressurization equipment, mechanical equipment and lighting.
2. Elevator operating equipment.
3. Fire alarm and smoke detection systems.
Elevators. In buildings and structures where standby power is required or
furnished to operate an elevator, the operation shall be in accordance with Sections
5D.4.2.18.1 through 5D.4.2.18.4.
Manual transfer. Standby power shall be manually transferable to all elevators in
each bank.
One elevator. Where only one elevator is installed, the elevator shall
automatically transfer to standby power within 60 seconds after failure of normal
power.
Two or more elevators. Where two or more elevators are controlled by a common
operating system, all elevators shall automatically transfer to standby power within
60 seconds after failure of normal power where the standby power source is of
sufficient capacity to operate all elevators at the same time. Where the standby
power source is not of sufficient capacity to operate all elevators at the same time,
all elevators shall transfer to standby power in sequence, return to the designated
landing and disconnect from the standby power source. After all elevators have
been returned to the designated level, at least one elevator shall remain operable
from the standby power source.
Venting. Where standby power is connected to elevators, the machine room
ventilation or air conditioning shall be connected to the standby power source.
Maintenance. Emergency and standby power systems shall be maintained such
that the system is capable of supplying service within the time specified for the
type and duration required.
Schedule. Inspection, testing and maintenance of emergency and standby power
systems shall be in accordance with an approved schedule established upon
completion and approval of the system installation.
Written record. Written records of the inspection, testing and maintenance of
emergency and standby power systems shall include the date of service, name of
the servicing technician, a summary of conditions noted and a detailed description
of any conditions requiring correction and what corrective action was taken. Such
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GENERAL PRECAUTIONS AGAINST FIRE
5D.4.3.3
5D.4.4
5D.4.4.1
5D.4.5
records shall be kept on the premises served by the emergency or standby power
system and be available for inspection by the building official.
Switch maintenance. Emergency and standby power system transfer switches
shall be included in the inspection, testing and maintenance schedule required by
Section 5D.4.3.1. Transfer switches shall be maintained free from accumulated
dust and dirt. Inspection shall include examination of the transfer switch contacts
for evidence of deterioration. When evidence of contact deterioration is detected,
the contacts shall be replaced in accordance with the transfer switch
manufacturer’s instructions.
Operational inspection and testing. Emergency power systems, including all
appurtenant components shall be inspected and tested under load in accordance
with NFPA 110 and NFPA 111.
Exception: Where the emergency power system is used for standby power or peak
load shaving, such use shall be recorded and shall be allowed to be substituted for
scheduled testing of the generator set, provided that appropriate records are
maintained.
Transfer switch test. The test of the transfer switch shall consist of electrically
operating the transfer switch from the normal position to the alternate position and
then return to the normal position.
Supervision of maintenance and testing. Routine maintenance, inspection and
operational testing shall be overseen by a properly instructed individual.
SECTION 5D.5
ELECTRICAL EQUIPMENT, WIRING AND HAZARDS
5D.5.1
Abatement of electrical hazards. Identified electrical hazards shall be abated.
Identified hazardous electrical conditions in permanent wiring shall be brought to
the attention of the code official responsible for enforcement of the SBC 401.
Electrical wiring, devices, appliances and other equipment that is modified or
damaged and constitutes an electrical shock or fire hazard shall not be used.
5D.5.2
Illumination. Illumination shall be provided for service equipment areas, motor
control centers and electrical panelboards.
5D.5.3
Working space and clearance. A working space of not less than 760 mm in
width, 900 mm in depth and 2 m in height shall be provided in front of electrical
service equipment. Where the electrical service equipment is wider than 760 mm,
the working space shall not be less than the width of the equipment. No storage of
any materials shall be located within the designated working space.
Exceptions:
1. Where other dimensions are required or allowed by the SBC 401.
2. Access openings into attics or under-floor areas which provide a minimum
clear opening of 560 mm by 760 mm.
Labeling. Doors into electrical control panel rooms shall be marked with a plainly
visible and legible sign stating ELECTRICAL ROOM or similar approved
wording. The disconnecting means for each service, feeder or branch circuit
originating on a switchboard or panelboard shall be legibly and durably marked to
indicate its purpose unless such purpose is clearly evident.
5D.5.3.1
5D.5.4
SBC 801
Multiplug adapters. Multiplug adaptors, such as cube adaptors, unfused plug
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GENERAL PRECAUTIONS AGAINST FIRE
5D.5.4.1
5D.5.4.2
5D.5.4.3
5D.5.5
5D.5.5.1
5D.5.5.2
5D.5.5.3
5D.5.5.4
strips or any other device not complying with the SBC 401 shall be prohibited.
Power tap design. Relocatable power taps shall be of the polarized or grounded
type, equipped with overcurrent protection, and shall be listed.
Power supply. Relocatable power taps shall be directly connected to a
permanently installed receptacle.
Installation. Relocatable power tap cords shall not extend through walls, ceilings,
floors, under doors or floor coverings, or be subject to environmental or physical
damage.
Extension cords. Extension cords and flexible cords shall not be a substitute for
permanent wiring. Extension cords and flexible cords shall not be affixed to
structures, extended through walls, ceilings or floors, or under doors or floor
coverings, nor shall such cords be subject to environmental damage or physical
impact. Extension cords shall be used only with portable appliances.
Power supply. Extension cords shall be plugged directly into an approved
receptacle, power tap or multiplug adapter and, except for approved multiplug
extension cords, shall serve only one portable appliance.
Ampacity. The ampacity of the extension cords shall not be less than the rated
capacity of the portable appliance supplied by the cord.
Maintenance. Extension cords shall be maintained in good condition without
splices, deterioration or damage.
Grounding. Extension cords shall be grounded when serving grounded portable
appliances.
5D.5.6
Unapproved conditions. Open junction boxes and open-wiring splices shall be
prohibited. Approved covers shall be provided for all switch and electrical outlet
boxes.
5D.5.7
Appliances. Electrical appliances and fixtures shall be tested and listed in
published reports of inspected electrical equipment by an approved agency and
installed in accordance with all instructions included as part of such listing.
5D.5.8
Electrical motors. Electrical motors shall be maintained free from excessive
accumulations of oil, dirt, waste and debris.
5D.5.9
Temporary wiring. Temporary wiring for electrical power and lighting
installations is allowed for a period not to exceed 90 days. Temporary wiring
methods shall meet the applicable provisions of the SBC 401.
Exception: Temporary wiring for electrical power and lighting installations is
allowed during periods of construction, remodeling, repair or demolition of
buildings, structures, equipment or similar activities.
Attachment to structures. Temporary wiring attached to a structure shall be
attached in an approved manner.
5D.5.9.1
SECTION 5D.6
MECHANICAL REFRIGERATION
5D.6.1
Scope. Refrigeration systems shall be installed in accordance with the SBC 501.
5D.6.2
Refrigerants. The use and purity of new, recovered, and reclaimed refrigerants
shall be in accordance with the SBC 501.
SBC 801
2007
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GENERAL PRECAUTIONS AGAINST FIRE
5D.6.3
Refrigerant classification. Refrigerants shall be classified in accordance with the
SBC 501.
5D.6.4
Change in refrigerant type. A change in the type of refrigerant in a refrigeration
system shall be in accordance with the SBC 501.
5D.6.5
Access. Refrigeration systems having a refrigerant circuit containing more than
100 kg of Group A1 or 14 kg of any other group refrigerant shall be accessible to
the Civil Defence at all times as required by the building official.
5D.6.6
Testing of equipment. Refrigeration equipment and systems having a refrigerant
circuit containing more than 100 kg of Group A1 or 14 kg of any other group
refrigerant shall be subject to periodic testing in accordance with Section 5D.6.6.1.
A written record of required testing shall be maintained on the premises. Tests of
emergency devices or systems required by this section shall be conducted by
persons trained and qualified in refrigeration systems.
Periodic testing. The following emergency devices or systems shall be
periodically tested in accordance with the manufacturer’s instructions and as
required by the building official.
1. Treatment and flaring systems.
2. Valves and appurtenances necessary to the operation of emergency
refrigeration control boxes.
3. Fans and associated equipment intended to operate emergency ventilation
systems.
4. Detection and alarm systems.
5D.6.6.1
5D.6.7
Emergency signs. Refrigeration units or systems having a refrigerant circuit
containing more than 100 kg of Group A1 or 14 kg of any other group refrigerant
shall be provided with approved emergency signs, charts, and labels in accordance
with NFPA 704. Hazard signs shall be in accordance with the SBC 501 for the
classification of refrigerants listed therein.
5D.6.8
Refrigerant detector. Machinery rooms shall contain a refrigerant detector with
an audible and visual alarm. The detector, or a sampling tube that draws air to the
detector, shall be located in an area where refrigerant from a leak will concentrate.
The alarm shall be actuated at a value not greater than the corresponding TLVTWA values shown in the SBC 501 for the refrigerant classification. Detectors and
alarms shall be placed in approved locations.
Exception: Detectors are not required for ammonia systems where the machinery
room complies with the SBC 501.
5D.6.9
Remote controls. Remote control of the mechanical equipment and appliances
located in the machinery room shall be provided at an approved location
immediately outside the machinery room and adjacent to its principal entrance.
Refrigeration system. A clearly identified switch of the break-glass type shall
provide off-only control of electrically energized equipment and appliances in the
machinery room, other than refrigerant leak detectors and machinery room
ventilation.
Ventilation system. A clearly identified switch of the break-glass type shall
provide on-only control of the machinery room ventilation fans.
Emergency control box. Emergency control boxes shall be provided for
refrigeration systems required to be equipped with a treatment system, flaring
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5D.6.9.1
5D.6.9.2
5D.6.9.3
SBC 801
GENERAL PRECAUTIONS AGAINST FIRE
5D.6.9.3.1
5D.6.9.3.2
5D.6.9.3.3
5D.6.9.3.4
5D.6.9.3.5
system or ammonia diffusion system.
Location. Emergency control boxes shall be located outside of the building at an
approved accessible location. All portions of the emergency control box shall be
1.8 m or less above the adjoining grade.
Construction. Emergency control boxes shall be of iron or steel not less than 1.4
mm in thickness and provided with a hinged cover and lock.
Operational procedure. Valves and switches shall be identified in an approved
manner as to the sequential procedure to be followed in the event of an emergency.
Identification. Emergency control boxes shall be provided with a permanent label
on the outside cover reading: CIVIL DEFENCE USE ONLY – REFRIGERANT
CONTROL BOX, and including the name of the refrigerant in the system. Hazard
identification in accordance with NFPA 704 shall be posted inside and outside of
the control box.
Instructions. Written instructions and information shall be provided and located
in the emergency control box designating the following information:
1. Instructions for suspending operation of the system in the event of an
emergency.
2. The name, address and emergency telephone numbers to obtain emergency
service.
3. The location and operation of emergency discharge systems.
5D.6.10
Storage, use and handling. Flammable and combustible materials shall not be
stored in machinery rooms for refrigeration systems having a refrigerant circuit
containing more than 100 kg of Group A1 or 14 kg of any other group refrigerant.
Storage, use or handling of extra refrigerant or refrigerant oils shall be as required
by Chapters 25, 28, 30 and 32.
Exception: This provision shall not apply to spare parts, tools, and incidental
materials necessary for the safe and proper operation and maintenance of the
system.
5D.6.11
Termination of relief devices. Pressure relief devices, fusible plugs and purge
systems for refrigeration systems containing more than 3 kg of flammable, toxic or
highly toxic refrigerants shall be provided with an approved discharge system as
required by Sections 5D.6.11.1, 5D.6.11.2 and 5D.6.11.3. Discharge piping and
devices connected to the discharge side of a fusible plug or rupture member shall
have provisions to prevent plugging the pipe in the event of the fusible plug or
rupture member functions.
Flammable refrigerants. Systems containing flammable refrigerants having a
density equal to or greater than the density of air shall discharge vapor to the
atmosphere only through an approved treatment system in accordance with Section
5D.6.11.4 or a flaring system in accordance with Section 5D.6.11.5. Systems
containing flammable refrigerants having a density less than the density of air shall
be permitted to discharge vapor to the atmosphere provided that the point of
discharge is located outside of the structure at not less than 4.6 m above the
adjoining grade level and not less than 6.1 m from any window, ventilation
opening or exit.
Toxic and highly toxic refrigerants. Systems containing toxic or highly toxic
refrigerants shall discharge vapor to the atmosphere only through an approved
treatment system in accordance with Section 5D.6.11.4 or a flaring system in
accordance with Section 5D.6.11.5.
Ammonia refrigerant. Systems containing ammonia refrigerant shall discharge
vapor to the atmosphere through an approved treatment system in accordance with
2007
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5D.6.11.1
5D.6.11.2
5D.6.11.3
SBC 801
GENERAL PRECAUTIONS AGAINST FIRE
5D.6.11.4
5D.6.11.5
5D.6.11.6
Section 5D.6.11.4, a flaring system in accordance with Section 5D.6.11.5, or
through an approved ammonia diffusion system in accordance with Section
5D.6.11.6, or by other approved means.
Exceptions:
1. Ammonia/water absorption systems containing less than 10 kg of ammonia
and for which the ammonia circuit is located entirely outdoors.
2. When the building official determines, on review of an engineering analysis
prepared in accordance with SBC 100, that a fire, health or environmental
hazard would not result from discharging ammonia directly to the atmosphere.
Treatment systems. Treatment systems shall be designed to reduce the allowable
discharge concentration of the refrigerant gas to not more than 50 percent of the
IDLH at the point of exhaust. Treatment systems shall be in accordance with
Chapter 35.
Flaring systems. Flaring systems for incineration of flammable refrigerants shall
be designed to incinerate the entire discharge. The products of refrigerant
incineration shall not pose health or environmental hazards. Incineration shall be
automatic upon initiation of discharge, shall be designed to prevent blowback, and
shall not expose structures or materials to threat of fire. Standby fuel, such as LP
gas, and standby power shall have the capacity to operate for one and one-half the
required time for complete incineration of refrigerant in the system.
Ammonia diffusion systems. Ammonia diffusion systems shall include a tank
containing 4 L of water for each 1 kg of ammonia that will be released in 1 hour
from the largest relief device connected to the discharge pipe. The water shall be
prevented from freezing. The discharge pipe from the pressure relief device shall
distribute ammonia in the bottom of the tank, but no lower than 10.1 m below the
maximum liquid level. The tank shall contain the volume of water and ammonia
without overflowing.
5D.6.12
Discharge location for refrigeration machinery room ventilation. Exhaust from
mechanical ventilation systems serving refrigeration machinery rooms capable of
exceeding 25 percent of the LFL or 50 percent of the IDLH shall be equipped with
approved treatment systems to reduce the discharge concentrations of flammable,
toxic or highly toxic refrigerants to those values or lower.
5D.6.13
Notification of refrigerant discharges. The building official shall be notified
immediately when a discharge becomes reportable under local regulations in
accordance with Section 25.3.3.1.
5D.6.14
Records. A written record shall be kept of refrigerant quantities brought into and
removed from the premises. Such records shall be available to the building
official.
5D.6.15
Electrical equipment. Where refrigerants of Groups A2, A3, B2 and B3, as
defined in the SBC 501, are used, refrigeration machinery rooms shall conform to
the Class I, Division 2 hazardous location classification requirements of the SBC
401.
Exception: Ammonia machinery rooms that are provided with ventilation in
accordance with SBC 501.
SBC 801
2007
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GENERAL PRECAUTIONS AGAINST FIRE
SECTION 5D.7
ELEVATOR RECALL AND MAINTENANCE
5D.7.1
Required. Existing elevators with a travel distance of 25 level of a building and
intended to serve the needs of emergency personnel for fire-fighting or rescue
purposes shall be provided with emergency operation in accordance with ASME
A17.3. New elevators shall be provided with Phase I emergency recall operation
and Phase II emergency in-car operation in accordance with ASME A17.1.
5D.7.2
Emergency signs. An approved pictorial sign of a standardized design shall be
posted adjacent to each elevator call station on all floors instructing occupants to
use the exit stairways and not to use the elevators in case of fire. The sign shall
read: IN FIRE EMERGENCY, DO NOT USE ELEVATOR. USE EXIT STAIRS.
The emergency sign shall not be required for elevators that are part of an
accessible means of egress complying with Section 8.7.4.
5D.7.3
Elevator keys. Keys for the elevator car doors and fire-fighter service keys shall
be kept in an approved location for immediate use by the Civil Defence.
SECTION 5D.8
STATIONARY LEAD-ACID BATTERY SYSTEMS
5D.8.1
Scope. Stationary lead-acid battery systems using vented (flooded) lead-acid
batteries having an electrolyte capacity of more than 189 L used for facility
standby power, emergency power, or uninterrupted power supplies shall comply
with this section. Valve-regulated lead-acid batteries are not subject to the
requirements of this section, but shall comply with Section 7.9.
5D.8.2
Safety venting. Batteries shall be provided with safety venting caps.
5D.8.3
Room design and construction. Enclosure of stationary lead-acid system rooms
shall comply with the SBC 201. The battery systems are permitted to be in the
same room with the equipment they support.
5D.8.4
Spill control and neutralization. An approved method and materials for the
control and neutralization of a spill of electrolyte shall be provided. The method
and materials shall be capable of controlling and neutralizing a spill from the
largest lead-acid battery to a pH between 7.0 and 9.0.
Ventilation. Ventilation shall be provided in accordance with the SBC 501 and the
following:
1. The ventilation system shall be designed to limit the maximum concentration
of hydrogen to 1.0 percent of the total volume of the room; or
2. Continuous ventilation shall be provided at a rate of not less than 0.0051
m3/(s · m2) of floor area of the room.
5D.8.5
5D.8.6
Signs. Doors into rooms or buildings containing stationary lead-acid battery
systems shall be provided with approved signs. The signs shall state that the room
contains lead-acid battery systems, that the battery room contains energized
electrical circuits, and that the battery electrolyte solutions are corrosive liquids.
5D.8.7
Seismic protection. The battery systems shall be seismically braced in accordance
with the SBC 201.
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SBC 801
GENERAL PRECAUTIONS AGAINST FIRE
5D.8.8
Smoke detection. An approved automatic smoke detection system shall be
installed in battery rooms in accordance with Section 7.7.2.23.
SECTION 5D.9
VALVE-REGULATED LEAD-ACID (VRLA) BATTERY SYSTEMS
5D.9.1
Scope. Valve-regulated lead-acid (VRLA) battery systems having an electrolyte
capacity of more than 189 L used for facility standby power, emergency power or
uninterrupted power supplies (UPS) shall comply with this section.
5D.9.2
Safety vents. VRLA batteries shall be equipped with self-resealing flame-arresting
safety vents.
5D.9.3
Thermal runaway. VRLA battery systems shall be provided with a listed device
or other approved method to preclude, detect and control thermal runaway.
5D.9.4
Room design and construction. Enclosure of VRLA battery system rooms shall
comply with the SBC 201. The battery systems are permitted to be in the same
room with the equipment they support. When VRLA battery systems are installed
in a separate equipment room accessible only to authorized personnel, they shall
be allowed to be installed on an open rack for ease of maintenance. When a VRLA
battery system is situated in an occupied work center, it shall be housed in a
noncombustible cabinet or other enclosure to prevent access by unauthorized
personnel.
5D.9.5
Neutralization. An approved manual method and materials for the neutralization
of a release of electrolyte shall be provided. The method and materials shall be
capable of controlling and neutralizing a release of 3 percent of the capacity of the
largest VRLA cell or block in the room to a pH between 7.0 and 9.0.
5D.9.6
Room ventilation. Ventilation shall be provided to limit the maximum
concentration of hydrogen to 1 percent of the total volume of the room during the
worst-case event of simultaneous “boost” charging of all batteries in the room.
Where calculations are not provided to substantiate the ventilation rate, continuous
ventilation at a rate of not less than 0.0051 m3/(s · m2) of floor area of the room
shall be provided. The ventilation shall be either mechanically or naturally
induced.
5D.9.7
Cabinet ventilation. Where VRLA batteries are installed inside a cabinet, the
cabinet shall be vented. The cabinet ventilation shall limit the maximum
concentration of hydrogen to 1 percent of the total volume of the cabinet during the
worst-case event of simultaneous “boost” charging of all batteries in the cabinet.
Where calculations are not provided to substantiate the ventilation rate, continuous
ventilation at a rate of not less than 0.0051 m3/(s · m2) of floor area covered by the
cabinet shall be provided. The ventilation shall be either mechanically or naturally
induced. The room in which the cabinet is installed shall also be ventilated as
required in Section 7.9.6.
5D.9.8
Signs. Doors into electrical equipment rooms containing VRLA battery systems
shall be provided with approved signs. The signs shall state that the room contains
lead-acid battery systems and contains energized electrical circuits. Where VRLA
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SBC 801
GENERAL PRECAUTIONS AGAINST FIRE
batteries are contained in cabinets in occupied work centers, the cabinet enclosures
shall be located within 3 m of the equipment that they support. The cabinets shall
have exterior labels that identify the manufacturer and model number of the system
and electrical rating (voltage and current) of the contained battery system. Within
the cabinet there shall be signs that indicate the relevant electrical, chemical and
fire hazards.
5D.9.9
Seismic protection. The battery systems shall be seismically braced in accordance
with the SBC 301.
5D.9.10
Smoke detection. An approved automatic smoke detection system shall be
installed in rooms containing VRLA battery systems in accordance with Section
7.7.2.23.
SECTION 5D.10
COMMERCIAL KITCHEN HOODS
5D.10.1
General. Commercial kitchen exhaust hoods shall comply with the requirements of
the SBC 501.
5D.10.2
Where required. A Type I hood shall be installed at or above all commercial
cooking appliances and domestic cooking appliances used for commercial purposes
that produce grease vapors.
SBC 801
2007
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INTERIOR FINISH, DECORATIVE MATERIALS AND FURNISHINGS
CHAPTER 6
INTERIOR FINISH, DECORATIVE MATERIALS AND FURNISHINGS
SECTION 6.1
GENERAL
6.1.1
Scope. The provisions of this chapter shall govern furniture and furnishings,
interior finishes, interior trim, decorative materials and decorative vegetation in
buildings. Sections 6.3, 6.4 and 6.5 shall be applicable to new and existing
buildings. Section 6.6 shall be applicable to existing buildings.
SECTION 6.2
DEFINITIONS
6.2.1
Terms defined in Chapter 1. Words and terms used in this chapter and defined in
Chapter 1 shall have the meanings ascribed to them as defined therein.
SECTION 6.3
FURNISHINGS
6.3.1
6.3.1.1
6.3.1.2
6.3.1.3
6.3.2
6.3.2.1
6.3.2.2
6.3.3
SBC 801
General requirements. The provisions of Sections 6.3.1.1 through 6.3.1.3 shall
be applicable to all occupancies covered by Sections 6.3.2 through 6.3.7.
Explosive and highly flammable materials. Furnishings or decorations of an
explosive or highly flammable character shall not be used.
Fire-retardant coatings. Fire-retardant coatings shall be maintained so as to
retain the effectiveness of the treatment under service conditions encountered in
actual use.
Obstructions. Furnishings or other objects shall not be placed to obstruct exits,
access thereto, egress there from or visibility thereof.
Group A. The requirements in Sections 6.3.2.1 and 6.3.2.2 shall apply to
occupancies in Group A.
Foam plastics. Exposed foam plastic materials and unprotected materials
containing foam plastic used for decorative purposes or stage scenery or exhibit
booths shall have a maximum heat release rate of 100 kilowatts (kW) when tested
in accordance with UL 1975.
Exceptions:
1. Individual foam plastic items or items containing foam plastic where the foam
plastic does not exceed 0.45 kg in weight.
2. Cellular or foam plastic shall be allowed for trim not in excess of 10 percent of
the wall or ceiling area, provided it is not less than 320 kg/m3 in density, is
limited to 12.7 mm in thickness and 100 mm in width, and complies with the
requirements for Class B interior wall and ceiling finish, except that the
smoke-developed index shall not be limited.
Motion picture screens. The screens upon which motion pictures are projected
shall be either flame resistant, as demonstrated by complying with NFPA 701, or
shall comply with the requirements for a Class B interior finish.
Group E. The requirements in Sections 6.3.3.1 and 6.3.3.2 shall apply to
occupancies in Group E.
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INTERIOR FINISH, DECORATIVE MATERIALS AND FURNISHINGS
6.3.3.1
6.3.3.2
6.3.4
6.3.4.1
6.3.4.2
6.3.5
6.3.5.1
6.3.5.2
6.3.5.3
SBC 801
Storage in corridors and lobbies. Clothing and personal effects shall not be
stored in corridors and lobbies.
Exceptions:
1. Corridors protected by an approved automatic sprinkler system installed in
accordance with Section 7.3.3.1.1.
2. Corridors protected by an approved smoke detection system installed in
accordance with Section 7.7.
3. Storage in metal lockers provided the minimum required egress width is
maintained.
Artwork. Artwork and teaching materials shall be limited on the walls of
corridors to not more than 20 percent of the wall area.
Group I-4, day care facilities. The requirements in Sections 6.3.4.1 and 6.3.4.2
shall apply to day care facilities classified in Group I-4.
Storage in corridors and lobbies. Clothing and personal effects shall not be
stored in corridors and lobbies.
Exceptions:
1. Corridors protected by an approved automatic sprinkler system installed in
accordance with Section 7.3.3.1.1.
2. Corridors protected by an approved smoke detection system installed in
accordance with Section 7.7.
3. Storage in metal lockers provided the minimum required egress width is
maintained.
Artwork. Artwork and teaching materials shall be limited on walls of corridors to
not more than 20 percent of the wall area.
Group I-2, nursing homes and hospitals. The requirements in Sections 6.3.5.1
through 6.3.5.3 shall apply to nursing homes and hospitals classified in Group I-2.
Upholstered furniture. Newly introduced upholstered furniture shall be shown to
resist ignition by cigarettes as determined by tests conducted in accordance with
NFPA 261 and shall have a char length not exceeding 38 mm.
Exceptions:
1. Upholstered furniture belonging to the patient in sleeping rooms of nursing
homes (Group I-2), provided that a smoke detector is installed in such rooms.
Battery-powered, single-station smoke alarms shall be permitted.
2. Upholstered furniture in rooms or spaces protected by an approved automatic
sprinkler system installed in accordance with Section 7.3.3.1.1.
Upholstered furniture heat release rate. Newly introduced upholstered furniture
shall have limited rates of heat release when tested in accordance with ASTM E
1537 or NFPA 266.
1. The peak rate of heat release for the single upholstered furniture item shall not
exceed 250 kW.
Exception: Upholstered furniture in rooms or spaces protected by an approved
automatic sprinkler system installed in accordance with Section 7.3.3.1.1.
2. The total energy released by the single upholstered furniture item during the
first 5 minutes of the test shall not exceed 40 mega joules (mJ).
Exception: Upholstered furniture in rooms or spaces protected by an approved
automatic sprinkler system installed in accordance with Section 7.3.3.1.1.
Mattresses, heat-release rate. Newly introduced mattresses in Group I-2
occupancies shall have limited rates of heat release when tested in accordance with
ASTM E 1590 or NFPA 267.
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INTERIOR FINISH, DECORATIVE MATERIALS AND FURNISHINGS
6.3.5.4
6.3.6
6.3.6.1
6.3.6.2
6.3.6.3
6.3.7
6.3.7.1
6.3.7.2
SBC 801
1. The peak rate of heat release for the mattress shall not exceed 250 kW.
Exception: Mattresses in rooms or spaces protected by an approved automatic
sprinkler system installed in accordance with Section 7.3.3.1.1.
2. The total energy released by the mattress during the first 5 minutes of the test
shall not exceed 40 mJ.
Exception: Mattresses in rooms or spaces protected by an approved automatic
sprinkler system installed in accordance with Section 7.3.3.1.1.
Identification. Upholstered furniture shall bear the label of an approved agency,
confirming compliance with the requirements of Sections 6.3.5.1 and 6.3.5.2.
Group I-1, board and care facilities. The requirements in Sections 6.3.6.1
through 6.3.6.3 shall apply to board and care facilities classified in Group I-1.
Upholstered furniture. Newly introduced upholstered furniture shall meet the
requirements for Class I when tested in accordance with NFPA 260.
Exception: Upholstered furniture in rooms or spaces protected by an approved
automatic sprinkler system.
Mattresses. New mattresses shall have a char length not exceeding 50 mm.
Exception: Mattresses in rooms or spaces protected by an approved automatic
sprinkler system.
Mattresses, heat-release rate. Newly introduced mattresses in Group I-1
occupancies shall have limited rates of heat release when tested in accordance with
ASTM E 1590 or NFPA 267.
1. The peak rate of heat release for the mattress shall not exceed 250 kW.
Exception: Mattresses in rooms or spaces protected by an approved automatic
sprinkler system.
2. The total energy released by the mattress during the first 5 minutes of the test
shall not exceed 40 mJ.
Exception: Mattresses in rooms or spaces protected by an approved automatic
sprinkler system.
Group I-3, detention and correction facilities. The requirements in Sections
6.3.7.1 through 6.3.7.6 shall apply to detention and correction facilities classified
in Group I-3.
Upholstered furniture classification. Newly introduced upholstered furniture
shall meet the requirements for Class I where tested in accordance with NFPA
260.
Exception: Upholstered furniture in rooms or spaces protected by an approved
automatic sprinkler system installed in accordance with Section 7.3.3.1.1.
Upholstered furniture heat release rate. Newly introduced upholstered furniture
shall have limited rates of heat release, as follows:
1. The peak rate of heat release for the single upholstered furniture item shall not
exceed 250 kW.
Exceptions:
1. In Use Condition I, II and III occupancies, as defined in the SBC 201,
upholstered furniture in rooms or spaces protected by approved smoke
detectors that initiate, without delay, an alarm that is audible in that room
or space.
2. Upholstered furniture in rooms or spaces protected by an approved
automatic sprinkler system installed in accordance with Section 7.3.3.1.1.
2. The total energy released by the single upholstered furniture item during the
first 5 minutes of the test shall not exceed 40 mJ.
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INTERIOR FINISH, DECORATIVE MATERIALS AND FURNISHINGS
6.3.7.3
6.3.7.4
6.3.7.5
6.3.7.6
Exception: Upholstered furniture in rooms or spaces protected by an approved
automatic sprinkler system installed in accordance with Section 7.3.3.1.1.
Mattresses, char length. Newly introduced mattresses shall have a char length
not exceeding 50 mm.
Exception: Mattresses in rooms or spaces protected by an approved automatic
sprinkler system installed in accordance with Section 7.3.3.1.1.
Mattresses, heat release rate. Newly introduced mattresses in detention and
correctional occupancies shall have limited rates of heat release when tested in
accordance with ASTM E 1590 or NFPA 267, as follows:
1. The peak rate of heat release for the mattress shall not exceed 250 kW.
Exception: Mattresses in rooms or spaces protected by an approved automatic
sprinkler system installed in accordance with Section 7.3.3.1.1.
2. The total energy released by the mattress during the first 5 minutes of the test
shall not exceed 40 mJ.
Exception: Mattresses in rooms or spaces protected by an approved automatic
sprinkler system installed in accordance with Section 7.3.3.1.1.
Wastebaskets. Wastebaskets and other waste containers shall be of noncombustible or other approved materials.
Wastebasket lids. Waste containers with a capacity of more than 76 L shall be
provided with a lid of noncombustible or other approved material.
SECTION 6.4
DECORATIVE VEGETATION
6.4.1
6.4.1.1
6.4.1.2
6.4.1.3
Natural cut trees. Natural cut trees, where permitted by this section, shall have
the trunk bottoms cut off at least 12.7 mm above the original cut and shall be
placed in a support device complying with Section 6.4.1.2.
Restricted occupancies. Natural cut trees shall be prohibited in Group A, E, I-1,
I-2, I-3, I-4, M, R-1, R-2 and R-4 occupancies.
Exception: Trees located in areas protected by an approved automatic sprinkler
system installed in accordance with Section 7.3.3.1.1 or 7.3.3.1.2 shall not be
prohibited in Groups A, E, M, R-1 and R-2.
Support devices. The support device that holds the tree in an upright position
shall be of a type that is stable and that meets all of the following criteria:
1. The device shall hold the tree securely and be of adequate size to avoid tipping
over of the tree.
2. The device shall be capable of containing a minimum 2 days supply of water.
3. The water level, when full, shall cover the tree stem at least 50 mm. The water
level shall be maintained above the fresh cut and checked at least once daily.
Dryness. The tree shall be removed from the building whenever the needles or
leaves fall off readily when a tree branch is shaken or if the needles are brittle and
break when bent between the thumb and index finger. The tree shall be checked
daily for dryness.
6.4.2
Obstruction of means of egress. The required width of any portion of a means of
egress shall not be obstructed by decorative vegetation.
6.4.3
Open flame. Candles and open flames shall not be used on or near decorative
vegetation. Natural cut trees shall be kept a distance from heat vents and any open
flame or heat-producing devices at least equal to the height of the tree.
SBC 801
2007
6/4
INTERIOR FINISH, DECORATIVE MATERIALS AND FURNISHINGS
6.4.3.1
Electrical fixtures and wiring. The use of unlisted electrical wiring and lighting
on decorative vegetation shall be prohibited.
6.4.4
Artificial vegetation. Artificial decorative vegetation shall be flame resistant or
flame retardant. Such flame resistance or flame retardance shall be documented
and certified by the manufacturer in an approved manner.
Electrical fixtures and wiring. The use of unlisted electrical wiring and lighting
on decorative vegetation shall be prohibited. The use of electrical wiring and
lighting on metal artificial trees shall be prohibited.
6.4.4.1
SECTION 6.5
DECORATIONS AND TRIM
6.5.1
6.5.1.1
6.5.1.2
General. In occupancies of Groups A, E, I and R-1 and dormitories in Group R-2,
curtains, draperies, hangings and other decorative materials suspended from walls
or ceilings shall be flame resistant in accordance with Section 6.5.2 and NFPA 701
or be noncombustible.
In Groups I-1 and I-2, combustible decorations shall be flame retardant unless the
decorations, such as photographs and paintings, are of such limited quantities that
a hazard of fire development or spread is not present. In Group I-3, combustible
decorations are prohibited.
Noncombustible materials. The permissible amount of noncombustible
decorative material shall not be limited.
Flame-resistant materials. The permissible amount of flame-resistant decorative
materials shall not exceed 10 percent of the aggregate area of walls and ceilings.
Exception: In auditoriums of Group A, the permissible amount of flame-resistant
decorative material shall not exceed 50 percent of the aggregate area of walls and
ceiling where the building is equipped throughout with an automatic sprinkler
system in accordance with Section 7.3.3.1.1, and where the material is installed in
accordance with Section 7.11 of SBC 201.
6.5.2
Acceptance criteria and reports. Where required to be flame resistant, decorative
materials shall be tested by an approved agency and pass Test 1, as described in
NFPA 701, or such materials shall be noncombustible. Reports of test results shall
be prepared in accordance with NFPA 701 and furnished to the Building code
official upon request.
6.5.3
Foam plastic. Foam plastic used as interior trim shall comply with Sections
6.5.3.1 through 6.5.3.4.
3
Density. The minimum density of the interior trim shall be 320 kg/m .
Thickness. The maximum thickness of the interior trim shall be 12.7 mm and the
maximum width shall be 200 mm.
Area limitation. The interior trim shall not constitute more than 10 percent of the
aggregate wall and ceiling area of a room or space.
Flame spread. The flame spread rating shall not exceed 75 where tested in
accordance with ASTM E 84. The smoke-developed index shall not be limited.
6.5.3.1
6.5.3.2
6.5.3.3
6.5.3.4
6.5.4
SBC 801
Pyroxylin plastic. Imitation leather or other material, consisting of or coated with
a pyroxylin or similarly hazardous base, shall not be used in Group A occupancies.
2007
6/5
INTERIOR FINISH, DECORATIVE MATERIALS AND FURNISHINGS
6.5.5
Trim. Material used as interior trim shall have a minimum Class C flame spread
index and smoke-developed index. Combustible trim, excluding handrails and
guardrails, shall not exceed 10 percent of the aggregate wall or ceiling area in
which it is located.
SECTION 6.6
INTERIOR FINISH AND DECORATIVE MATERIALS
6.6.1
General. The provisions of this section shall limit the allowable flame spread and
smoke development of interior finishes and decorative materials in existing
buildings based on location and occupancy classification.
Exceptions:
1. Materials having a thickness less than 1.0 mm applied directly to the surface of
walls and ceilings.
2. Exposed portions of structural members complying with the requirements of
buildings of Type IV construction in accordance with the SBC 201 shall not be
subject to interior finish requirements.
Requirements based on occupancy. Interior finish and decorative materials shall
be restricted by combustibility and flame resistance according to occupancy group
in accordance with Table 6.6.3.
Foam plastics. Cellular or foam plastics shall not be used as interior finish or trim.
Exceptions:
1. Cellular or foam plastic materials shall be permitted on the basis of fire tests
that substantiate their combustibility characteristics for the use intended under
actual fire conditions.
2. Cellular or foam plastic shall be permitted for trim not in excess of 10 percent
3
of the wall or ceiling area, provided such trim is not less than 320 kg/m in
density, is limited to 12.7 mm in thickness and 200 mm in width, and complies
with the requirements for Class A or B interior wall and ceiling finish except
that the smoke rating shall not be limited.
Obstruction of means of egress. No decorations or other objects shall be placed
to obstruct exits, access thereto, egress there from, or visibility thereof.
6.6.1.1
6.6.1.2
6.6.1.3
6.6.2
6.6.2.1
6.6.2.1.1
SBC 801
Wall and ceiling finish. Interior wall and ceiling finishes shall be classified in
accordance with Section 7.11 of SBC 201. Such interior finishes shall be grouped
in the following classes in accordance with their flame spread and smokedeveloped index.
Class A: Flame spread index 0-25
Smoke-developed index 0-450
Class B: Flame spread index 26-75
Smoke-developed index 0-450
Class C: Flame spread index 76-450
Smoke-developed index 0-450
Exception: Materials, other than textiles, tested in accordance with Section
6.6.2.1.
Interior wall and ceiling finishes other than textiles. Interior wall or ceiling
finishes, other than textiles, shall be permitted to be tested in accordance with
NFPA 286. Finishes tested in accordance with NFPA 286 shall comply with
Section 6.6.2.1.1.
Acceptance criteria. During the 40 kW exposure, the interior finish shall comply
with Item 1. During the 160 kW exposure, the interior finish shall comply with
Item 2. During the entire test, the interior finish shall comply with Item 3.
2007
6/6
INTERIOR FINISH, DECORATIVE MATERIALS AND FURNISHINGS
6.6.2.2
6.6.2.3
6.6.2.3.1
6.6.2.3.2
6.6.2.4
6.6.2.5
6.6.2.6
SBC 801
1. During the 40 kW exposure, flames shall not spread to the ceiling.
2. During the 160 kW exposure, the interior finish shall comply with the
following:
2.1 Flame shall not spread to the outer extremity of the sample on any wall
or ceiling.
2.2 Flashover, as defined in NFPA 286, shall not occur.
3. The total smoke released throughout the NFPA 286 test shall not exceed 1,000
2
m.
Stability. Interior finish materials regulated by this chapter shall be applied or
otherwise fastened in such a manner that such materials will not readily become
detached when subjected to a room temperature of 93°C for not less than 30
minutes.
Textiles. Textile wall coverings shall have a Class A flame spread rating when
tested in accordance with ASTM E 84 and be protected by approved automatic
sprinklers installed in accordance with Section 7.3.3.1.1 or 7.3.3.1.2 or the
covering shall meet the criteria of Section 6.6.2.3.1 or 6.6.2.3.2 when tested in
accordance with NFPA 265 using the product-mounting system, including
adhesive, of actual use.
Method A. When using method A, flame shall not spread to the ceiling during a
40 kW exposure. During the 150 kW exposure, all of the following criteria shall be
met:
1. Flame shall not spread to the outer extremity of the sample on the 2.4 m by 3.7
m wall.
2. The specimen shall not burn to the outer extremity of the 06-m-wide samples
mounted vertically in the corner of the room.
3. Burning droplets that are judged by the Building Code official to be capable of
igniting the textile wall covering or that persist in burning for 30 seconds or
more shall not be formed and dropped to the floor.
4. Flashover, as defined in NFPA 265, shall not occur.
5. The maximum instantaneous net peak rate of heat release shall not exceed 300
kW.
Method B. When using method B, flame shall not spread to the ceiling during the
40 kW exposure. During the 150 kW exposure, all of the following criteria shall be
met:
1. Flame shall not spread to the outer extremity of the sample on the 2.4 by 3.7 m
wall.
2. Flashover, as defined in NFPA 265, shall not occur.
Trim and incidental finish. Interior wall and ceiling finish not in excess of 10
percent of the aggregate wall and ceiling areas of any room or space shall be
permitted to be Class C materials.
Expanded vinyl wall coverings. Expanded vinyl wall coverings shall comply with
the requirements for textile wall and ceiling materials and their use shall comply
with Section 6.6.2.2.
Exception: Expanded vinyl wall or ceiling coverings complying with Section
6.6.2.1 shall not be required to comply with Sections 6.6.2 and 6.6.3.
Fire-retardant coatings. The required flame spread or smoke-developed
classification of surfaces shall be permitted to be achieved by application of
approved fire-retardant coatings, paints or solutions to surfaces having a flame
spread rating exceeding that permitted. Such applications shall comply with NFPA
703 and the required fire-retardant properties shall be maintained or renewed in
accordance with the manufacturer’s instructions.
2007
6/7
INTERIOR FINISH, DECORATIVE MATERIALS AND FURNISHINGS
Wall and ceiling finish requirements. Interior wall and ceiling finish shall have a
flame spread index not greater than that specified in Table 6.6.3 for the group and
location designated. Interior wall and ceiling finish materials, other than textiles,
tested in accordance with NFPA 286 and meeting the acceptance criteria of Section
6.6.2.1.1, shall be permitted to be used where a Class A classification in
accordance with ASTM E 84 is required.
6.6.3
TABLE 6.6.3
k
INTERIOR WALL AND CEILING FINISH REQUIREMENTS BY OCCUPANCY
GROUP
A-1l & A-2
A-3f, l,A-4,
A-5
B, E, M, R1, R-4
F
H
I-1
I-2
I-3
I-4
R-2
R-3
S
U
SPRINKLEREDm
Exit access
Vertical exits
corridors
and exit
and other
passagewaysa, b
exitways
B
B
B
B
C
B
B
B
A
B
C
C
C
B
C
C
B
C
B
Aj
B
C
C
C
No Restrictions
Rooms and
enclosed
spacesc
C
NONSPRINKLERED
Exit access
corridors
Vertical exits
Rooms and
and other
and exit
enclosed
passagewaysa, b
spacesc
exitways
d
A
A
Be
C
A
C
C
Cg
C
Bh, i
C
Bh, i
C
C
C
A
B
A
A
A
A
A
B
C
B
Ad
B
C
A
B
A
A
A
B
C
B
No Restrictions
C
C
C
B
B
B
B
B
C
C
C
Class C interior finish materials shall be permitted for wainscotting or paneling of not more than 93 m2 of
applied surface area in the grade lobby where applied directly to a noncombustible base or over furring strips
applied to a noncombustible base and fire blocked as required by Section 7.11 of SBC 201.
b. In vertical exits of buildings less than three stories in height of other than Group I-3, Class B interior finish for
unsprinklered buildings and Class C for sprinklered buildings shall be permitted.
c. Requirements for rooms and enclosed spaces shall be based upon spaces enclosed by partitions. Where a fireresistance rating is required for structural elements, the enclosing partitions shall extend from the floor to the
ceiling. Partitions that do not comply with this shall be considered as enclosing spaces and the rooms or spaces
on both sides shall be considered as one. In determining the applicable requirements for rooms and enclosed
spaces, the specific occupancy thereof shall be the governing factor regardless of the group classification of the
building or structure.
d. Lobby areas in Group A-1, A-2 and A-3 occupancies shall not be less than Class B.
e. Class C interior finish materials shall be permitted in Group A occupancies with an occupant load of 300
persons or less.
f. For mosques and places or worship, wood used for ornamental purposes, trusses, paneling, or chancel
furnishing shall be permitted.
g. Class B required where building exceeds two stories.
h. Class C interior finish materials shall be permitted in administrative spaces.
i. Class C interior finish materials shall be permitted in rooms with a capacity of four persons or less.
j. Class B materials shall be permitted as wainscoting extending not more than 1,219 mm above the finished floor
in exit access corridors.
k. Finish materials as provided for in other sections of these code requirements.
l. Motion picture screens shall comply with Section 6.3.2.2.
m. Applies when the vertical exits, exit passageways, exit access corridors or exitways, or rooms and spaces are
protected by a sprinkler system installed in accordance with Section 7.3.3.1.1 or 7.3.3.1.2.
a.
SBC 801
2007
6/8
FIRE PROTECTION SYSTEMS
CHAPTER 7
FIRE PROTECTION SYSTEMS
SECTION 7.1
GENERAL
7.1.1
Scope. The provisions of this chapter shall specify where fire protection systems
are required and shall apply to the design, installation, inspection, operation,
testing and maintenance of all fire protection systems.
7.1.2
Construction documents. The Building official shall have the authority to require
construction documents and calculations for all fire protection systems and to
require permits be issued for the installation, rehabilitation or modification of any
fire protection system. Construction documents for fire protection systems shall be
submitted for review and approval prior to system installation.
Statement of compliance. Before requesting final approval of the installation,
where required by the Building official, the installing contractor shall furnish a
written statement to the Building official that the subject fire protection system has
been installed in accordance with approved plans and has been tested in
accordance with the manufacturer’s specifications and the appropriate installation
standard. Any deviations from the design standards shall be noted and copies of
the approvals for such deviations shall be attached to the written statement.
7.1.2.1
7.1.3
Permits. Permits shall be required as set forth in SBC 100.
7.1.4
Installation. Fire protection systems shall be maintained in accordance with the
original installation standards for that system. Required systems shall be extended,
altered, or augmented as necessary to maintain and continue protection whenever
the building is altered, remodeled or added to. Alterations to fire protection
systems shall be done in accordance with applicable standards.
Required fire protection systems. Fire protection systems required by these code
requirements or the SBC 201 shall be installed, repaired, operated, tested and
maintained in accordance with these code requirements.
Nonrequired fire protection systems. Any fire protection system or portion
thereof not required by these code requirements or the SBC 201 shall be allowed
to be furnished for partial or complete protection provided such installed system
meets these code requirements and the SBC 201.
Additional fire protection systems. In occupancies of a hazardous nature, where
special hazards exist in addition to the normal hazards of the occupancy, or where
the Building official determines that access for fire apparatus is unduly difficult,
the Building official shall have the authority to require additional safeguards. Such
safeguards include, but shall not be limited to, the following: automatic fire
detection systems, fire alarm systems, automatic fire-extinguishing systems,
standpipe systems, or portable or fixed extinguishers. Fire protection equipment
required under this section shall be installed in accordance with these code
requirements and the applicable referenced standards.
Appearance of equipment. Any device that has the physical appearance of life
safety or fire protection equipment but that does not perform that life safety or fire
protection function, shall be prohibited.
7.1.4.1
7.1.4.2
7.1.4.3
7.1.4.4
7.1.5
SBC 801
Installation acceptance testing. Fire detection and alarm systems, fireextinguishing systems, fire hydrant systems, fire standpipe systems, fire pump
2007
7/1
FIRE PROTECTION SYSTEMS
7.1.5.1
7.1.6
7.1.6.1
systems, private fire service mains and all other fire protection systems and
appurtenances thereto shall be subject to acceptance tests as contained in the
installation standards and as approved by the Building official. The Building
official shall be notified before any required acceptance testing.
Occupancy. It shall be unlawful to occupy any portion of a building or structure
until the required fire detection, alarm and suppression systems have been tested
and approved.
Inspection, testing and maintenance. Fire detection, alarm and extinguishing
systems shall be maintained in an operative condition at all times, and shall be
replaced or repaired where defective. Nonrequired fire protection systems and
equipment shall be inspected, tested and maintained or removed.
Standards. Fire protection systems shall be inspected, tested and maintained in
accordance with the referenced standards listed in Table 7.1.6.1.
TABLE 7.1.6.1
FIRE PROTECTION SYSTEM MAINTENANCE STANDARDS
SYSTEM
Portable fire extinguishers
Carbon dioxide fire-extinguishing system
Halon 1301 fire-extinguishing systems
Dry-chemical extinguishing systems
Wet-chemical extinguishing systems
Water-based fire protection systems
Fire alarm systems
Water-mist systems
Clean-agent extinguishing systems
STANDARD
NFPA 10
NFPA 12
NFPA 12A
NFPA 17
NFPA 17A
NFPA 25
NFPA 72
NFPA 750
NFPA 2001
7.1.6.2
Records. Records of all system inspections, tests, and maintenance required by the
referenced standards shall be maintained on the premises for a minimum of 3 years
and made available to the Building official upon request.
7.1.7
Systems out of service. Where a required fire protection system is out of service,
the Civil Defence and the Building official shall be notified immediately and,
where required by the Building official, the building shall either be evacuated or
an approved fire watch shall be provided for all occupants left unprotected by the
shut down until the fire protection system has been returned to service.
Where utilized, fire watches shall be provided with at least one approved means
for notification of the Civil Defence and their only duty shall be to perform
constant patrols of the protected premises and keep watch for fires.
Impairment coordinator. The building owner shall assign an impairment
coordinator to comply with the requirements of this section. In the absence of a
specific designee, the owner shall be considered the impairment coordinator.
Tag required. A tag shall be used to indicate that a system, or portion thereof, has
been removed from service.
Placement of tag. The tag shall be posted at each Civil Defence connection,
system control valve, fire alarm control unit, fire alarm annunciator and fire
command center, indicating which system, or part thereof, has been removed from
service. The Building official shall specify where the tag is to be placed.
Preplanned impairment programs. Preplanned impairments shall be authorized
7.1.7.1
7.1.7.2
7.1.7.3
7.1.7.4
SBC 801
2007
7/2
FIRE PROTECTION SYSTEMS
7.1.7.5
7.1.7.6
7.1.8
7.1.8.1
by the impairment coordinator. Before authorization is given, a designated
individual shall be responsible for verifying that all of the following procedures
have been implemented:
1. The extent and expected duration of the impairment have been determined.
2. The areas or buildings involved have been inspected and the increased risks
determined.
3. Recommendations have been submitted to management or building owner/
manager.
4. The Civil Defence has been notified.
5. The insurance carrier, the alarm company, building owner/manager, and other
authorities having jurisdiction have been notified.
6. The supervisors in the areas to be affected have been notified.
7. A tag impairment system has been implemented.
8. Necessary tools and materials have been assembled on the impairment site.
Emergency impairments. When unplanned impairments occur, appropriate
emergency action shall be taken to minimize potential injury and damage. The
impairment coordinator shall implement the steps outlined in Section 7.1.7.4.
Restoring systems to service. When impaired equipment is restored to normal
working order, the impairment coordinator shall verify that all of the following
procedures have been implemented:
1. Necessary inspections and tests have been conducted to verify that affected
systems are operational.
2. Supervisors have been advised that protection is restored.
3. The Civil Defence has been advised that protection is restored.
4. The building owner/manager, insurance carrier, alarm company, and other
involved parties have been advised that protection is restored.
5. The impairment tag has been removed.
Removal of or tampering with equipment. It shall be unlawful for any person to
remove, tamper with or otherwise disturb any fire hydrant, fire detection and alarm
system, fire suppression system, or other fire appliance required by these code
requirements except for the purpose of extinguishing fire, training purposes,
recharging or making necessary repairs, or when approved by the Building
official.
Removal of or tampering with appurtenances. Locks, gates, doors, barricades,
chains, enclosures, signs, tags or seals which have been installed by or at the
direction of the Building official shall not be removed, unlocked, destroyed,
tampered with or otherwise vandalized in any manner.
7.1.9
Modifications. No person shall remove or modify any fire protection system
installed or maintained under the provisions of these code requirements or the SBC
201 without approval by the building official.
7.1.10
Threads. Threads provided for fire department connections to sprinkler systems,
standpipes, yard hydrants or any other fire hose connection shall be compatible
with the connections used by the local Civil Defence.
7.1.11
Acceptance tests. Fire protection systems shall be tested in accordance with the
requirements of these code requirements and the SBC 201. When required, the
tests shall be conducted in the presence of the building official. Tests required by
these code requirements, the SBC 201 and the standards listed in these code
requirements shall be conducted at the expense of the owner or the owner’s
SBC 801
2007
7/3
FIRE PROTECTION SYSTEMS
representative. It shall be unlawful to occupy portions of a structure until the
required fire protection systems within that portion of the structure have been
tested and approved.
7.1.12
7.1.12.1
7.1.12.2
7.1.12.3
7.1.13
Supervisory service. Where required, fire protection systems shall be monitored
by an approved supervising station in accordance with NFPA 72.
Automatic sprinkler systems. Automatic sprinkler systems shall be monitored by
an approved supervising station.
Exceptions:
1. A supervising station is not required for automatic sprinkler systems protecting
one- and two-family dwellings.
2. Limited area systems serving fewer than 20 sprinklers.
Fire alarm systems. Fire alarm systems required by the provisions of Section
7.7.2 of these code requirements shall be monitored by an approved supervising
station in accordance with Section 7.7.15.
Exceptions:
1. Single- and multiple-station smoke alarms required by Section 7.7.2.10.
2. Smoke detectors in Group I-3 occupancies.
3. Supervisory service is not required for automatic sprinkler systems in one- and
two-family dwellings.
Group H. Manual fire alarm, automatic fire-extinguishing and emergency alarm
systems in Group H occupancies shall be monitored by an approved supervising
station.
Exception: When approved by the building official, on-site monitoring at a
constantly attended location shall be permitted provided that notifications to the
fire department will be equal to those provided by an approved supervising station.
Fire areas. Where buildings, or portions thereof, are divided into fire areas so as
not to exceed the limits established for requiring a fire protection system in
accordance with this chapter, such fire areas shall be separated by fire barriers
having a fire-resistance rating of not less than that determined in accordance with
Section 4.6.3.7 of the SBC 201.
SECTION 7.2
DEFINITIONS
7.2.1
Definitions. The following words and terms shall, for the purposes of this chapter
and as used elsewhere in these code requirements, have the meanings shown
herein.
ALARM NOTIFICATION APPLIANCE. A fire alarm system component such
as a bell, horn, speaker, light, or text display that provides audible, tactile, or
visible outputs, or any combination thereof.
ALARM SIGNAL. A signal indicating an emergency requiring immediate action,
such as a signal indicative of fire.
ALARM VERIFICATION FEATURE. A feature of automatic fire detection
and alarm systems to reduce unwanted alarms wherein smoke detectors report
alarm conditions for a minimum period of time, or confirm alarm conditions
within a given time period, after being automatically reset, in order to be accepted
as a valid alarm-initiation signal.
SBC 801
2007
7/4
FIRE PROTECTION SYSTEMS
ANNUNCIATOR. A unit containing one or more indicator lamps, alphanumeric
displays, or other equivalent means in which each indication provides status
information about a circuit, condition or location.
AUDIBLE ALARM NOTIFICATION APPLIANCE. A notification appliance
that alerts by the sense of hearing.
AUTOMATIC. As applied to fire protection devices, is a device or system
providing an emergency function without the necessity for human intervention and
activated as a result of a predetermined temperature rise, rate of temperature rise,
or combustion products.
AUTOMATIC FIRE-EXTINGUISHING SYSTEM. An approved system of
devices and equipment which automatically detects a fire and discharges an
approved fire-extinguishing agent onto or in the area of a fire.
AUTOMATIC SPRINKLER SYSTEM. A sprinkler system, for fire protection
purposes, is an integrated system of underground and overhead piping designed in
accordance with fire protection engineering standards. The system includes a
suitable water supply. The portion of the system above the ground is a network of
specially sized or hydraulically designed piping installed in a structure or area,
generally overhead, and to which automatic sprinklers are connected in a
systematic pattern. The system is usually activated by heat from a fire and
discharges water over the fire area.
AVERAGE AMBIENT SOUND LEVEL. The root mean square, A-weighted
sound pressure level measured over a 24-hour period.
CARBON DIOXIDE EXTINGUISHING SYSTEM. A system supplying
carbon dioxide (CO2) from a pressurized vessel through fixed pipes and nozzles.
The system includes a manual or automatic-actuating mechanism.
CLEAN AGENT. Electrically non-conducting, volatile, or gaseous fire
extinguishant that does not leave a residue upon evaporation.
CONSTANTLY ATTENDED LOCATION. A designated location at a facility
staffed by trained personnel on a continuous basis where alarm or supervisory
signals are monitored and facilities are provided for notification of the Civil
Defence or other emergency services.
DELUGE SYSTEM. A sprinkler system employing open sprinklers attached to a
piping system connected to a water supply through a valve that is opened by the
operation of a detection system installed in the same area as the sprinklers. When
this valve opens, water flows into the piping system and discharges from all
sprinklers attached thereto.
DETECTOR, HEAT. A fire detector that senses heat produced by burning
substances. Heat is the energy produced by combustion that causes substances to
rise in temperature.
DRY-CHEMICAL EXTINGUISHING AGENT. A powder composed of small
particles, usually of sodium bicarbonate, potassium bicarbonate, urea-potassiumSBC 801
2007
7/5
FIRE PROTECTION SYSTEMS
based bicarbonate, potassium chloride or monoammonium phosphate, with added
particulate material supplemented by special treatment to provide resistance to
packing, resistance to moisture absorption (caking) and the proper flow
capabilities.
EMERGENCY ALARM SYSTEM. A system to provide indication and warning
of emergency situations involving hazardous materials.
EMERGENCY VOICE/ALARM COMMUNICATIONS. Dedicated manual or
automatic facilities for originating and distributing voice instructions, as well as
alert and evacuation signals pertaining to a fire emergency, to the occupants of a
building.
FIRE ALARM BOX, MANUAL. See “Manual fire alarm box.”
FIRE ALARM CONTROL UNIT. A system component that receives inputs
from automatic and manual fire alarm devices and is capable of supplying power
to detection devices and transponder(s) of off-premises transmitter(s). The control
unit is capable of providing a transfer of power to the notification appliances and
transfer of condition to relays of devices.
FIRE ALARM SIGNAL. A signal initiated by a fire alarm-initiating device such
as a manual fire alarm box, automatic fire detector, water-flow switch, or other
device whose activation is indicative of the presence of a fire or fire signature.
FIRE ALARM SYSTEM. A system or portion of a combination system
consisting of components and circuits arranged to monitor and annunciate the
status of fire alarm or supervisory signal-initiating devices and to initiate the
appropriate response to those signals.
FIRE AREA. The aggregate floor area enclosed and bounded by fire walls, fire
barriers, exterior walls, or fire-resistance-rated horizontal assemblies of a building.
FIRE DETECTOR, AUTOMATIC. A device designed to detect the presence of
a fire signature and to initiate action.
FIRE PROTECTION SYSTEM. Approved devices, equipment and systems or
combinations of systems used to detect a fire, activate an alarm, extinguish or
control a fire, control or manage smoke and products of a fire or any combination
thereof.
FIRE SAFETY FUNCTIONS. Building and fire control functions that are
intended to increase the level of life safety for occupants or to control the spread of
the harmful effects of fire.
FOAM-EXTINGUISHING SYSTEM. A special system discharging a foam
made from concentrates, either mechanically or chemically, over the area to be
protected.
HALOGENATED EXTINGUISHING SYSTEM. A fire-extinguishing system
using one or more atoms of an element from the halogen chemical series: fluorine,
chlorine, bromine and iodine.
SBC 801
2007
7/6
FIRE PROTECTION SYSTEMS
IMPAIRMENT COORDINATOR. The person responsible for the maintenance
of a particular fire protection system.
INITIATING DEVICE. A system component that originates transmission of a
change-of-state condition, such as in a smoke detector, manual fire alarm box, or
supervisory switch.
LISTED. Equipment, materials or services included in a list published by an
organization acceptable to the building official and concerned with evaluation of
products or services that maintains periodic inspection of production of listed
equipment or materials or periodic evaluation of services and whose listing states
either that the equipment, material or service meets identified standards or has
been tested and found suitable for a specified purpose.
MANUAL FIRE ALARM BOX. A manually operated device used to initiate an
alarm signal.
MULTIPLE-STATION ALARM DEVICE. Two or more single-station alarm
devices that can be interconnected such that actuation of one causes all integral or
separate audible alarms to operate. It also can consist of one single-station alarm
device having connections to other detectors or to a manual fire alarm box.
MULTIPLE-STATION SMOKE ALARM. Two or more single-station alarm
devices that are capable of interconnection such that actuation of one causes all
integral or separate audible alarms to operate.
NUISANCE ALARM. An alarm caused by mechanical failure, malfunction,
improper installation, or lack of proper maintenance, or an alarm activated by a
cause that cannot be determined.
RECORD DRAWINGS. Drawings (“as builts”) that document the location of all
devices, appliances, wiring, sequences, wiring methods, and connections of the
components of a fire alarm system as installed.
SINGLE-STATION SMOKE ALARM. An assembly incorporating the detector,
the control equipment, and the alarm-sounding device in one unit, operated from a
power supply either in the unit or obtained at the point of installation.
SLEEPING UNIT. A room or space in which people sleep, which can also
include permanent provisions for living, eating, and either sanitation or kitchen
facilities but not both. Such rooms and spaces that are also part of a dwelling unit
are not sleeping units.
SMOKE ALARM. A single or multiple-station alarm responsive to smoke and
not connected to a system.
SMOKE DETECTOR. A listed device that senses visible or invisible particles of
combustion.
SBC 801
2007
7/7
FIRE PROTECTION SYSTEMS
SMOKEPROOF ENCLOSURE. An exit stairway designed and constructed so
that the movement of the products of combustion produced by a fire occurring in
any part of the building into the enclosure is limited.
STANDPIPE SYSTEM, CLASSES OF. Standpipe classes are as follows:
Class I system. A system providing 65 mm hose connections to supply water
for use by Civil Defence and those trained in handling heavy fire streams.
Class II system. A system providing 40 mm hose stations to supply water for
use primarily by the building occupants or by the Civil Defence during initial
response.
Class III system. A system providing 40 mm hose stations to supply water for
use by building occupants and 65 mm hose connections to supply a larger
volume of water for use by fire departments and those trained in handling
heavy fire streams.
STANDPIPE, TYPES OF. Standpipe types are as follows:
Automatic dry. A dry standpipe system, normally filled with pressurized air,
that is arranged through the use of a device, such as a dry pipe valve, to admit
water into the system piping automatically upon the opening of a hose valve.
The water supply for an automatic dry standpipe system shall be capable of
supplying the system demand.
Automatic wet. A wet standpipe system that has a water supply that is capable
of supplying the system demand automatically.
Manual dry. A dry standpipe system that does not have a permanent water
supply attached to the system. Manual dry standpipe systems require water
from a fire department pumper to be pumped into the system through the Civil
Defence connection in order to supply the system demand.
Manual wet. A wet standpipe system connected to a water supply for the
purpose of maintaining water within the system but which does not have a
water supply capable of delivering the system demand attached to the system.
Manual wet standpipe systems require water from a Civil Defence pumper (or
the like) to be pumped into the system in order to supply the system demand.
Semi-automatic dry. A dry standpipe system that is arranged through the use
of a device, such as a deluge valve, to admit water into the system piping upon
activation of a remote control device located at a hose connection. A remote
control activation device shall be provided at each hose connection. The water
supply for a semi-automatic dry standpipe system shall be capable of
supplying the system demand.
SUPERVISING STATION. A facility that receives signals and at which
personnel are in attendance at all times to respond to these signals.
SUPERVISORY SERVICE. The service required to monitor performance of
guard tours and the operative condition of fixed suppression systems or other
systems for the protection of life and property.
SUPERVISORY SIGNAL. A signal indicating the need of action in connection
with the supervision of guard tours, the fire suppression systems or equipment, or
the maintenance features of related systems.
SUPERVISORY SIGNAL-INITIATING DEVICE. An initiating device such
as a valve supervisory switch, water level indicator, or low-air pressure switch on
SBC 801
2007
7/8
FIRE PROTECTION SYSTEMS
a dry-pipe sprinkler system whose change of state signals an off-normal condition
and its restoration to normal of a fire protection or life safety system; or a need for
action in connection with guard tours, fire suppression systems or equipment, or
maintenance features of related systems.
TIRES, BULK STORAGE OF. Storage of tires where the area available for
storage exceeds 566 m3.
TROUBLE SIGNAL. A signal initiated by the fire alarm system or device
indicative of a fault in a monitored circuit or component.
VISIBLE ALARM NOTIFICATION APPLIANCE. A notification appliance
that alerts by the sense of sight.
WET-CHEMICAL EXTINGUISHING AGENT. A solution of water and
potassium-carbonate-based chemical, potassium-acetate-based chemical or a
combination thereof, forming an extinguishing agent.
WIRELESS PROTECTION SYSTEM. A system or a part of a system that can
transmit and receive signals without the aid of wire.
ZONE. A defined area within the protected premises. A zone can define an area
from which a signal can be received, an area to which a signal can be sent, or an
area in which a form of control can be executed.
SECTION 7.3
AUTOMATIC SPRINKLER SYSTEMS
7.3.1
7.3.1.1
General. Automatic sprinkler systems shall comply with this section.
Alternative protection. Alternative automatic fire-extinguishing systems
complying with Section 7.4 shall be permitted in lieu of automatic sprinkler
protection where recognized by the applicable standard and approved by the
Building official.
7.3.2
Where required. Approved automatic sprinkler systems in new buildings and
structures shall be provided in the locations described in this section.
Exception: Spaces or areas in telecommunications buildings used exclusively for
telecommunications equipment, associated electrical power distribution
equipment, batteries and standby engines, provided those spaces or areas are
equipped throughout with an automatic fire alarm system and are separated from
the remainder of the building by a wall with a fire-resistance rating of not less
than 1 hour and a floor/ceiling assembly with a fire-resistance rating of not less
than 2 hours.
Group A. An automatic sprinkler system shall be provided throughout buildings
and portions thereof used as Group A occupancies as provided in this section. For
Group A-1, A-2, A-3, and A-4 occupancies, the automatic sprinkler system shall
be provided throughout the floor area where the Group A-1, A-2, A-3 or A-4
occupancy is located, and in all floors between the Group A occupancy and the
level of exit discharge. For group A-5 occupancies, the automatic sprinkler system
shall be provided in the spaces indicated in Section 7.3.2.1.5.
Group A-1. An automatic sprinkler system shall be provided for Group A-1
occupancies where one of the following conditions exists:
7.3.2.1
7.3.2.1.1
SBC 801
2007
7/9
FIRE PROTECTION SYSTEMS
7.3.2.1.2
7.3.2.1.3
7.3.2.1.4
7.3.2.1.5
7.3.2.2
7.3.2.3
7.3.2.3.1
7.3.2.4
7.3.2.4.1
7.3.2.4.2
SBC 801
1. The fire area exceeds 1,115 m2;
2. The fire area has an occupant load of 300 or more;
3. The fire area is located on a floor other than the level of exit discharge; or
4. The fire area contains a multitheater complex.
Group A-2. An automatic sprinkler system shall be provided for Group A-2
occupancies where one of the following conditions exists:
1. The fire area exceeds 465 m2;
2. The fire area has an occupant load of 300 or more; or
3. The fire area is located on a floor other than the level of exit discharge.
Group A-3. An automatic sprinkler system shall be provided for Group A-3
occupancies where one of the following conditions exists:
1. The fire area exceeds 1.1 m2;
2. The fire area has an occupant load of 300 or more; or
3. The fire area is located on a floor other than the level of exit discharge.
Exception: Areas used exclusively as participant sports areas where the main floor
area is located at the same level as the level of exit discharge of the main entrance
and exit.
Group A-4. An automatic sprinkler system shall be provided for Group A-4
occupancies where one of the following conditions exists:
1. The fire area exceeds 1.1 m2;
2. The fire area has an occupant load of 300 or more; or
3. The fire area is located on a floor other than the level of exit discharge.
Exception: Areas used exclusively as participant sports areas where the main floor
area is located at the same level as the level of exit discharge of the main entrance
and exit.
Group A-5. An automatic sprinkler system shall be provided in concession stands,
retail areas, press boxes, and other accessory use areas in excess of 93 m2.
Group E. An automatic sprinkler system shall be provided for Group E
occupancies as follows:
1. Throughout all Group E fire areas greater than 1.9 m2 in area.
2. Throughout every portion of educational buildings below the level of exit
discharge.
Exception: An automatic sprinkler system is not required in any fire area or area
below the level of exit discharge where every classroom throughout the building
has at least one exterior exit door at ground level.
Group F-1. An automatic sprinkler system shall be provided throughout all
buildings containing a Group F-1 occupancy where one of the following
conditions exist:
1. Where a Group F-1 fire area exceeds 1.1 m2;
2. Where a Group F-1 fire area is located more than three stories above grade; or
3. Where the combined area of all Group F-1 fire areas on all floors, including
any mezzanines, exceeds 2.2 m2.
Woodworking operations. An automatic sprinkler system shall be provided
throughout all Group F-1 occupancy fire areas that contain woodworking
operations in excess of 232 m2 which generate finely divided combustible waste or
which use finely divided combustible materials.
Group H. Automatic sprinkler systems shall be provided in high-hazard
occupancies as required in Sections 7.3.2.4.1 through 7.3.2.4.3.
General. An automatic sprinkler system shall be installed in Group H
occupancies.
Group H-5 occupancies. An automatic sprinkler system shall be installed
throughout buildings containing Group H-5 occupancies. The design of the
2007
7/10
FIRE PROTECTION SYSTEMS
7.3.2.4.3
sprinkler system shall not be less than that required under the SBC 201 for the
occupancy hazard classifications in accordance with Table 7.3.2.4.2.
Where the design area of the sprinkler system consists of a corridor protected by
one row of sprinklers, the maximum number of sprinklers required to be calculated
is 13.
Pyroxylin plastics. An automatic sprinkler system shall be provided in buildings,
or portions thereof, where cellulose nitrate film or pyroxylin plastics are
manufactured, stored or handled in quantities exceeding 45 kg.
TABLE 7.3.2.4.2
GROUP H-5 SPRINKLER DESIGN CRITERIA
OCCUPANCY HAZARD
CLASSIFICATION
LOCATION
7.3.2.5
7.3.2.6
7.3.2.6.1
7.3.2.7
7.3.2.8
7.3.2.8.1
7.3.2.8.2
SBC 801
Fabrication areas
Ordinary Hazard Group 2
Service corridors
Ordinary Hazard Group 2
Storage rooms without dispensing
Ordinary Hazard Group 2
Storage rooms with dispensing
Extra Hazard Group 2
Corridors
Ordinary Hazard Group 2
Group I. An automatic sprinkler system shall be provided throughout buildings
with a Group I fire area.
Exception: An automatic sprinkler system installed in accordance with Section
7.3.3.1.2 or 7.3.3.1.3 shall be allowed in Group I-1 facilities.
Group M. An automatic sprinkler system shall be provided throughout buildings
containing a Group M occupancy where one of the following conditions exists:
1. Where a Group M fire area exceeds 1.1 m2;
2. Where a Group M fire area is located more than three stories above grade; or
3. Where the combined area of all Group M fire areas on all floors, including any
mezzanines, exceeds 2,230 m2.
High-piled storage. An automatic sprinkler system shall be provided as required
in Chapter 21 in all buildings of Group M where storage of merchandise is in highpiled or rack storage arrays.
Group R. An automatic sprinkler system installed in accordance with Section
7.3.3 shall be provided throughout all buildings with a Group R fire area.
Group S-1. An automatic sprinkler system shall be provided throughout all
buildings containing a Group S-1 occupancy where one of the following
conditions exist:
1. Where a Group S-1 fire area exceeds 1.1 m2;
2. Where a Group S-1 fire area is located more than three stories above grade; or
3. Where the combined area of all Group S-1 fire areas on all floors, including
any mezzanines, exceeds 2,230 m2.
Repair garages. An automatic sprinkler system shall be provided throughout all
buildings used as repair garages in accordance with the SBC 201, as follows:
1. Buildings two or more stories in height, including basements, with a fire area
containing a repair garage exceeding 929 m2.
2. One-story buildings with a fire area containing a repair garage exceeding 1.1
m2.
3. Buildings with a repair garage servicing vehicles parked in the basement.
Bulk storage of tires. Buildings and structures where the area for the storage of
3
tires exceeds 566 m shall be equipped throughout with an automatic sprinkler
system in accordance with Section 7.3.3.1.1.
2007
7/11
FIRE PROTECTION SYSTEMS
Group S-2. An automatic sprinkler system shall be provided throughout buildings
classified as an enclosed parking garage in accordance with the SBC 201 or where
located beneath other groups.
Exception: Enclosed parking garages located beneath Group R-3 occupancies.
7.3.2.9.1
Commercial parking garages. An automatic sprinkler system shall be provided
throughout buildings used for storage of commercial trucks or buses where the
fire area exceeds 464 m2.
7.3.2.10
All occupancies except Groups R-3 and U. An automatic sprinkler system shall
be installed in the locations set forth in Sections 7.3.2.10.1 through 7.3.2.10.1.3.
Exception: Group R-3 and Group U.
7.3.2.10.1 Stories and basements without openings. An automatic sprinkler system shall
be installed in every story or basement of all buildings where the floor area
exceeds 140 m2 and where there is not provided at least one of the following types
of exterior wall openings:
1. Openings below grade that lead directly to ground level by an exterior
stairway complying with Section 8.9 or an outside ramp complying with
Section 8.10. Openings shall be located in each 15.2 m, or fraction thereof, of
exterior wall in the story on at least one side.
2
2. Openings entirely above the adjoining ground level totaling at least 1.86 m in
each 15.2, or fraction thereof, of exterior wall in the story on at least one side.
7.3.2.10.1.1 Opening dimensions and access. Openings shall have a minimum dimension of
not less than 762 mm. Such openings shall be accessible to the Civil Defence
from the exterior and shall not be obstructed in a manner that fire fighting or
rescue cannot be accomplished from the exterior.
7.3.2.10.1.2 Openings on one side only. Where openings in a story are provided on only one
side and the opposite wall of such story is more than 23.0 m from such openings,
the story shall be equipped throughout with an approved automatic sprinkler
system or openings as specified above shall be provided on at least two sides the
story.
7.3.2.10.1.3 Basements. Where any portion of a basement is located more than 23.0 m from
openings required by Section 7.3.2.10.1, the basement shall be equipped
throughout with an approved automatic sprinkler system.
7.3.2.10.2 Rubbish and linen chutes. An automatic sprinkler system shall be installed at the
top of rubbish and linen chutes and in their terminal rooms. Chutes extending
through three or more floors shall have additional sprinkler heads installed within
such chutes at alternate floors. Chute sprinklers shall be accessible for servicing.
7.3.2.10.3 Buildings more than 16.8 meters in height. An automatic sprinkler system shall
be installed throughout buildings with a floor level having an occupant load of 30
or more that is located 16.8 m or more above the lowest level of Civil Defence
vehicle access.
Exceptions:
1. Airport control towers.
2. Open parking structures.
3. Occupancies in Group F-2.
7.3.2.11
During construction. Automatic sprinkler systems required during construction,
alteration and demolition operations shall be provided in accordance with Section
10.13.
7.3.2.12
Other hazards. Automatic sprinkler protection shall be provided for the hazards
indicated in Sections 7.3.2.12.1 and 7.3.2.12.2.
7.3.2.12.1 Ducts conveying hazardous exhausts. Where required by the SBC 501,
automatic sprinklers shall be provided in ducts conveying hazardous exhaust,
flammable or combustible materials.
7.3.2.9
SBC 801
2007
7/12
FIRE PROTECTION SYSTEMS
7.3.2.12.2
7.3.2.13
Exception: Ducts where the largest cross-sectional diameter of the duct is less
than 254 mm.
Commercial cooking operations. An automatic sprinkler system shall be
installed in a commercial kitchen exhaust hood and duct system where an
automatic sprinkler system is used to comply with Section 7.4.
Other required suppression systems. In addition to the requirements of Section
7.3.2, the provisions indicated in Table 7.3.2.13 also require the installation of a
suppression system for certain buildings and areas.
TABLE 7.3.2.13
ADDITIONAL REQUIRED FIRE-EXTINGUISHING SYSTEMS
SECTION
8.24.6.2.3
12.4.1
12.4.6
12.5.1
12.5.6.1
12.5.8.4
13.8.2
13.8.3
16.3.10
16.3.10.1.1
16.3.10.2
16.3.10.3
16.3.10.4
16.3.10.4
16.3.10.4.2
17.7.3
17.8.7
19.6.1
19.6.2
Table 21.6.2
21.6.4
25.3.8.4.1
25.3.8.5.3
25.4.5
25.5.1.8
26.4.4.1
27.4.5
31.6.5.2.1
31.6.5.2.3
32.4.3.7.5.1
32.4.3.8
32.5.3.7.3
35.4.1.2
35.4.1.3
SBC 801
SUBJECT
Smoke-protected seating
Spray finishing in Group A, E, I or R
Spray booths and rooms
Dip-tank rooms
Dip tanks
Hardening and tempering tanks
Dry cleaning plants
Dry cleaning machines
HPM facilities
HPM work station exhaust
HPM gas cabinets
HPM corridors
HPM exhaust
HPM noncombustible ducts
HPM combustible ducts
Lumber production conveyor rooms
Recycling facility conveyor rooms
Class A and B ovens
Class C and D ovens
Storage fire protection
Storage
Gas rooms
Exhausted enclosures
Indoor storage of hazardous materials
Indoor dispensing of hazardous materials
Aerosol warehouses
Storage of more than 28 m3 of loose combustible fibers
Storage of smokeless propellant
Storage of small arms primers
Flammable and combustible liquid storage rooms
Flammable and combustible liquid storage warehouses
Flammable and combustible liquid Group H-2 or H-3 areas
Gas cabinets for highly toxic and toxic gas
Exhausted enclosures for highly toxic and toxic gas
(Continued)
2007
7/13
FIRE PROTECTION SYSTEMS
TABLE 7.3.2.13 – continued
ADDITIONAL REQUIRED FIRE-EXTINGUISHING SYSTEMS
SECTION
35.4.2.2.6
35.4.3.3
39.6.2.2
40.4.1.1
40.4.1.3
40.4.2
SUBJECT
Gas rooms for highly toxic and toxic gas
Outdoor storage for highly toxic and toxic gas
Exhausted enclosures or gas cabinets for silane gas
Pyroxylin plastic storage cabinets
Pyroxylin plastic storage vaults
Pyroxylin plastic storage and manufacturing
Installation requirements. Automatic sprinkler systems shall be designed and
installed in accordance with Sections 7.3.3.1 through 7.3.3.7.
7.3.3.1
Standards. Sprinkler systems shall be designed and installed in accordance with
Section 7.3.3.1.1, 7.3.3.1.2 or 7.3.3.1.3.
7.3.3.1.1
Sprinkler systems. Where the provisions of these code requirements require that a
building or portion thereof be equipped throughout with an automatic sprinkler
system in accordance with this section, sprinklers shall be installed throughout in
accordance with NFPA 13 except as provided in Section 7.3.3.1.1.1.
7.3.3.1.1.1 Exempt locations. Automatic sprinklers shall not be required in the following
rooms or areas where such rooms or areas are protected with an approved
automatic fire detection system in accordance with Section 7.7.2 that will respond
to visible or invisible particles of combustion. Sprinklers shall not be omitted from
any room merely because it is damp, of fire-resistance rated construction or
contains electrical equipment.
1. Any room where the application of water, or flame and water, constitutes a
serious life or fire hazard.
2. Any room or space where sprinklers are considered undesirable because of the
nature of the contents, when approved by the Building official.
3. Generator and transformer rooms separated from the remainder of the building
by walls and floor/ceiling or roof/ceiling assemblies having a fire-resistance
rating of not less than 2 hours.
4. In rooms or areas that are of noncombustible construction with wholly
noncombustible contents.
7.3.3.1.2
Sprinkler systems. Where allowed in buildings of Group R, up to and including
four stories in height, automatic sprinkler systems shall be installed throughout in
accordance with NFPA 13R.
7.3.3.1.2.1 Balconies. Sprinkler protection shall be provided for exterior balconies and
ground floor patios of dwelling units where the building is of Type V construction.
Sidewall sprinklers that are used to protect such areas shall be permitted to be
located such that their deflectors are within 25 mm to 150 mm below the structural
members, and a maximum distance of 350 mm below the deck of the exterior
balconies that are constructed of open wood joist construction.
7.3.3.1.3
Sprinkler systems. Where allowed, automatic sprinkler systems installed in oneand two-family dwellings shall be installed throughout in accordance with NFPA
13D.
7.3.3.2
Quick-response and residential sprinklers. Where automatic sprinkler systems
are required by these code requirements, quick-response or residential automatic
sprinklers shall be installed in the following areas in accordance with Section
7.3.3.1 and their listings:
1. Throughout all spaces within a smoke compartment containing patient sleeping
7.3.3
SBC 801
2007
7/14
FIRE PROTECTION SYSTEMS
units in Group I-2 in accordance with the SBC 201.
2. Dwelling units and sleeping units in Group R and I-1 occupancies.
3. Light-hazard occupancies as defined in NFPA 13.
7.3.3.3
Obstructed locations. Automatic sprinklers shall be installed with due regard to
obstructions that will delay activation or obstruct the water distribution pattern.
Automatic sprinklers shall be installed in or under covered kiosks, displays,
booths, concession stands, or equipment that exceeds 1.2 m in width. Not less than
a 0.9 m clearance shall be maintained between automatic sprinklers and the top of
piles of combustible fibers.
Exception: Kitchen equipment under exhaust hoods protected with a fireextinguishing system in accordance with Section 7.4.
7.3.3.4
Actuation. Automatic sprinkler systems shall be automatically actuated unless
specifically provided for in these code requirements.
7.3.3.5
Water supplies. Water supplies for automatic sprinkler systems shall comply with
this section and the standards referenced in Section 7.3.3.1. The potable water
supply shall be protected against backflow in accordance with the requirements of
this section and the SBC 701.
7.3.3.5.1
Domestic services. Where the domestic service provides the water supply for the
automatic sprinkler system, the supply shall be in accordance with this section.
7.3.3.5.1.1 Limited area sprinkler systems. Limited area sprinkler systems serving fewer
than 20 sprinklers on any single connection are permitted to be connected to the
domestic service where a wet automatic standpipe is not available. Limited area
sprinkler systems connected to domestic water supplies shall comply with each of
the following requirements:
1. Valves shall not be installed between the domestic water riser control valve
and the sprinklers.
Exception: An approved indicating control valve supervised in the open
position in accordance with Section 7.3.4.
2. The domestic service shall be capable of supplying the simultaneous domestic
demand and the sprinkler demand required to be hydraulically calculated by
NFPA 13, NFPA 13R or NFPA 13D.
7.3.3.5.1.2 Residential combination services. A single combination water supply shall be
permitted provided that the domestic demand is added to the sprinkler demand as
required by NFPA 13R.
7.3.3.5.2
Secondary water supply. A secondary on-site water supply equal to the
hydraulically calculated sprinkler demand, including the hose stream requirement,
shall be provided for high-rise buildings in Seismic Design Category C, D, E or F
as determined by the SBC 201. The secondary water supply shall have a duration
not less than 30 minutes as determined by the occupancy hazard classification in
accordance with NFPA 13.
Exception: Existing buildings.
7.3.3.6
Hose threads. Fire hose threads used in connection with automatic sprinkler
systems shall be approved and shall be compatible with Civil Defence hose
threads.
7.3.3.7
Civil Defence connections. The location of Civil Defence connections shall be
approved by the Building official.
7.3.4
SBC 801
Sprinkler system monitoring and alarms. All valves controlling the water
supply for automatic sprinkler systems, pumps, tanks, water levels and
temperatures, critical air pressures, and water-flow switches on all sprinkler
systems shall be electrically supervised.
2007
7/15
FIRE PROTECTION SYSTEMS
7.3.4.1
7.3.4.2
7.3.4.3
Exceptions:
1. Automatic sprinkler systems protecting one- and two-family dwellings.
2. Limited area systems serving fewer than 20 sprinklers.
3. Automatic sprinkler systems installed in accordance with NFPA 13R where a
common supply main is used to supply both domestic water and the automatic
sprinkler system, and a separate shutoff valve for the automatic sprinkler
system is not provided.
4. Jockey pumps control valves that are sealed or locked in the open position.
5. Control valves to commercial kitchen hoods, paint spray booths or dip tanks
that are sealed or locked in the open position.
6. Valves controlling the fuel supply to fire pump engines that are sealed or
locked in the open position.
7. Trim valves to pressure switches in dry, preaction and deluge sprinkler systems
that are sealed or locked in the open position.
Signals. Alarm, supervisory and trouble signals shall be distinctly different and
shall be automatically transmitted to an approved central station, remote
supervising station or proprietary supervising station as defined in NFPA 72 or,
when approved by the Building official, shall sound an audible signal at a
constantly attended location.
Exceptions:
1. Underground key or hub valves in roadway boxes provided by the
municipality or public utility are not required to be monitored.
2. Backflow prevention device test valves, located in limited area sprinkler
system supply piping, shall be locked in the open position. In occupancies
required to be equipped with a fire alarm system, the backflow preventer
valves shall be electrically supervised by a tamper switch installed in
accordance with NFPA 72 and separately annunciated.
Alarms. Approved audible devices shall be connected to every automatic sprinkler
system. Such sprinkler water-flow alarm devices shall be activated by water flow
equivalent to the flow of a single sprinkler of the smallest orifice size installed in
the system. Alarm devices shall be provided on the exterior of the building in an
approved location. Where a fire alarm system is installed, actuation of the
automatic sprinkler system shall actuate the building fire alarm system.
Floor control valves. Approved supervised indicating control valves shall be
provided at the point of connection to the riser on each floor in high-rise buildings.
7.3.5
Testing and maintenance. Sprinkler systems shall be tested and maintained in
accordance with Section 7.1.
7.3.6
Existing buildings. The provisions of this section are intended to provide a
reasonable degree of safety in existing structures not complying with the minimum
requirements of the SBC 201 by requiring installation of an automatic fireextinguishing system.
Pyroxylin plastics. All structures occupied for the manufacture or storage of
articles of cellulose nitrate (pyroxylin) plastic shall be equipped with an approved
automatic fire-extinguishing system. Vaults located within buildings for the
storage of raw pyroxylin shall be protected with an approved automatic sprinkler
system capable of discharging 68 L/min/m2 over the area of the vault.
7.3.6.1
SBC 801
2007
7/16
FIRE PROTECTION SYSTEMS
SECTION 7.4
ALTERNATIVE AUTOMATIC FIRE-EXTINGUISHING SYSTEMS
7.4.1
General. Automatic fire-extinguishing systems, other than automatic sprinkler
systems, shall be designed, installed, inspected, tested and maintained in
accordance with the provisions of this section and the applicable referenced
standards.
7.4.2
Where required. Automatic fire-extinguishing systems installed as an alternative
to the required automatic sprinkler systems of Section 7.3 shall be approved by the
Building official. Automatic fire-extinguishing systems shall not be considered
alternatives for the purposes of exceptions or reductions permitted by other
requirements of these code requirements.
Hood system suppression. Each required commercial kitchen exhaust hood and
duct system required by Section 4.10 to have a Type I hood shall be protected with
an approved automatic fire-extinguishing system installed in accordance with
these code requirements.
7.4.2.1
7.4.3
7.4.3.1
7.4.3.2
7.4.3.3
7.4.3.4
7.4.3.5
7.4.4
7.4.4.1
7.4.4.2
SBC 801
Installation. Automatic fire-extinguishing systems shall be installed in accordance
with this section.
Electrical wiring. Electrical wiring shall be in accordance with the SBC 401.
Actuation. Automatic fire-extinguishing systems shall be automatically actuated
and provided with a manual means of actuation in accordance with Section
7.4.11.1.
System interlocking. Automatic equipment interlocks with fuel shutoffs,
ventilation controls, door closers, window shutters, conveyor openings, smoke and
heat vents, and other features necessary for proper operation of the fireextinguishing system shall be provided as required by the design and installation
standard utilized for the hazard.
Alarms and warning signs. Where alarms are required to indicate the operation
of automatic fire-extinguishing systems, distinctive audible, visible alarms and
warning signs shall be provided to warn of pending agent discharge. Where
exposure to automatic-extinguishing agents poses a hazard to persons and a delay
is required to ensure the evacuation of occupants before agent discharge, a separate
warning signal shall be provided to alert occupants once agent discharge has
begun. Audible signals shall be in accordance with Section 7.7.10.2.
Monitoring. Where a building fire alarm system is installed, automatic fireextinguishing systems shall be monitored by the building fire alarm system in
accordance with NFPA 72.
Inspection and testing. Automatic fire-extinguishing systems shall be inspected
and tested in accordance with the provisions of this section prior to acceptance.
Inspection. Prior to conducting final acceptance tests, the following items shall be
inspected:
1. Hazard specification for consistency with design hazard.
2. Type, location and spacing of automatic and manual-initiating devices.
3. Size, placement and position of nozzles or discharge orifices.
4. Location and identification of audible and visible alarm devices.
5. Identification of devices with proper designations.
6. Operating instructions.
Alarm testing. Notification appliances, connections to fire alarm systems, and
connections to approved supervising stations shall be tested in accordance with
2007
7/17
FIRE PROTECTION SYSTEMS
7.4.4.2.1
7.4.4.3
7.4.5
7.4.5.1
7.4.5.2
7.4.6
7.4.6.1
7.4.6.2
7.4.7
7.4.7.1
7.4.8
7.4.8.1
7.4.8.2
7.4.8.3
SBC 801
this section and Section 7.7 to verify proper operation.
Audible and visible signals. The audibility and visibility of notification
appliances signaling agent discharge or system operation, where required, shall be
verified.
Monitor testing. Connections to protected premises and supervising station fire
alarm systems shall be tested to verify proper identification and retransmission of
alarms from automatic fire-extinguishing systems.
Wet-chemical systems. Wet-chemical extinguishing systems shall be installed,
maintained, periodically inspected and tested in accordance with NFPA 17A and
their listing.
System test. Systems shall be inspected and tested for proper operation at 6
months intervals. Tests shall include a check of the detection system, alarms and
releasing devices, including manual stations and other associated equipment.
Extinguishing system units shall be weighed and the required amount of agent
verified. Stored pressure-type units shall be checked for the required pressure. The
cartridge of cartridge-operated units shall be weighed and replaced at intervals
indicated by the manufacturer.
Fusible link maintenance. Fixed temperature-sensing elements shall be
maintained to ensure proper operation of the system.
Dry-chemical systems. Dry-chemical extinguishing systems shall be installed,
maintained, periodically inspected and tested in accordance with NFPA 17 and
their listing.
System test. Systems shall be inspected and tested for proper operation at 6
months intervals. Tests shall include a check of the detection system, alarms and
releasing devices, including manual stations and other associated equipment.
Extinguishing system units shall be weighed, and the required amount of agent
verified. Stored pressure-type units shall be checked for the required pressure. The
cartridge of cartridge-operated units shall be weighed and replaced at intervals
indicated by the manufacturer.
Fusible link maintenance. Fixed temperature-sensing elements shall be
maintained to ensure proper operation of the system.
Foam systems. Foam-extinguishing systems shall be installed, maintained,
periodically inspected and tested in accordance with NFPA 11, NFPA 11A and
NFPA 16 and their listing.
System test. Foam-extinguishing systems shall be inspected and tested at intervals
in accordance with NFPA 25.
Carbon dioxide systems. Carbon dioxide extinguishing systems shall be installed,
maintained, periodically inspected and tested in accordance with NFPA 12 and
their listing.
System test. Systems shall be inspected and tested for proper operation at 12
months intervals.
High-pressure cylinders. High-pressure cylinders shall be weighed and the date
of the last hydrostatic test shall be verified at 6 months intervals. Where a
container shows a loss in original content of more than 10 percent, the cylinder
shall be refilled or replaced.
Low-pressure containers. The liquid-level gauges of low-pressure containers
shall be observed at one-week intervals. Where a container shows a content loss of
more than 10 percent, the container shall be refilled to maintain the minimum gas
2007
7/18
FIRE PROTECTION SYSTEMS
7.4.8.4
7.4.8.4.1
7.4.8.5
7.4.9
7.4.9.1
7.4.9.2
7.4.9.3
7.4.9.3.1
7.4.9.4
7.4.10
7.4.10.1
7.4.10.2
7.4.10.3
7.4.11
SBC 801
requirements.
System hoses. System hoses shall be examined at 12 months intervals for damage.
Damaged hoses shall be replaced or tested. At five-year intervals, all hoses shall
be tested.
Test procedure. Hoses shall be tested at not less than 17,238 kPa for highpressure systems and at not less than 6,206 kPa for low-pressure systems.
Auxiliary equipment. Auxiliary and supplementary components, such as
switches, door and window releases, interconnected valves, damper releases and
supplementary alarms, shall be manually operated at 12 months intervals to ensure
that such components are in proper operating condition.
Halon systems. Halogenated extinguishing systems shall be installed, maintained,
periodically inspected and tested in accordance with NFPA 12A and their listing.
System test. Systems shall be inspected and tested for proper operation at 12
months intervals.
Containers. The extinguishing agent quantity and pressure of containers shall be
checked at 6 months intervals. Where a container shows a loss in original weight
of more than 5 percent or a loss in original pressure (adjusted for temperature) of
more than 10 percent, the container shall be refilled or replaced. The weight and
pressure of the container shall be recorded on a tag attached to the container.
System hoses. System hoses shall be examined at 12 months intervals for damage.
Damaged hoses shall be replaced or tested. At 5 years intervals, all hoses shall be
tested.
Test procedure. For Halon 1301 systems, hoses shall be tested at not less than
10,343 kPa for 4,137 kPa charging pressure systems and not less than 6,206 kPa
for 2,482 kPa charging pressure systems. For Halon 1211 hand-hose line systems,
hoses shall be tested at 17,238 kPa for high-pressure systems and 6,206 kPa for
low-pressure systems.
Auxiliary equipment. Auxiliary and supplementary components, such as
switches, door and window releases, interconnected valves, damper releases and
supplementary alarms, shall be manually operated at 12 months intervals to ensure
such components are in proper operating condition.
Clean-agent systems. Clean-agent fire-extinguishing systems shall be installed,
maintained, periodically inspected and tested in accordance with NFPA 2001 and
their listing.
System test. Systems shall be inspected and tested for proper operation at 12
months intervals.
Containers. The extinguishing agent quantity and pressure of the containers shall
be checked at 6 months intervals. Where a container shows a loss in original
weight of more than 5 percent or a loss in original pressure, adjusted for
temperature, of more than 10 percent, the container shall be refilled or replaced.
The weight and pressure of the container shall be recorded on a tag attached to the
container.
System hoses. System hoses shall be examined at 12 months intervals for damage.
Damaged hoses shall be replaced or tested. All hoses shall be tested at 5-year
intervals.
Commercial cooking systems. The automatic fire-extinguishing system for
commercial cooking systems shall be of a type recognized for protection of
commercial cooking equipment and exhaust systems of the type and arrangement
protected. Preengineered automatic dry and wet-chemical extinguishing systems
2007
7/19
FIRE PROTECTION SYSTEMS
7.4.11.1
7.4.11.2
7.4.11.3
7.4.11.3.1
7.4.11.4
7.4.11.4.1
7.4.11.5
7.4.11.6
7.4.11.6.1
SBC 801
shall be tested in accordance with UL 300 and listed and labeled for the intended
application. Other types of automatic fire-extinguishing systems shall be listed and
labeled for specific use as protection for commercial cooking operations. The
system shall be installed in accordance with these code requirements, its listing
and the manufacturer’s installation instructions. Automatic fire-extinguishing
systems of the following types shall be installed in accordance with the referenced
standard indicated, as follows:
1. Carbon dioxide extinguishing systems, NFPA 12.
2. Automatic sprinkler systems, NFPA 13.
3. Foam-water sprinkler system or foam-water spray systems, NFPA 16.
4. Dry-chemical extinguishing systems, NFPA 17.
5. Wet-chemical extinguishing systems, NFPA 17A.
Exception: Factory-built commercial cooking recirculating systems that are tested
in accordance with UL 197 and listed, labeled and installed in accordance with
SBC 501.
Manual system operation. A manual actuation device shall be located at or near a
means of egress from the cooking area, a minimum of 3 m and a maximum of 6.1
m from the kitchen exhaust system. The manual actuation device shall be located a
minimum of 1.2 m and a maximum of 1.5 m above the floor. The manual actuation
shall require a maximum force of 178 N and a maximum movement of 350 mm to
actuate the fire suppression system.
Exception: Automatic sprinkler systems shall not be required to be equipped with
manual actuation means.
System interconnection. The actuation of the fire suppression system shall
automatically shut down the fuel or electrical power supply to the cooking
equipment. The fuel and electrical supply reset shall be manual.
Carbon dioxide systems. When carbon dioxide systems are used, there shall be a
nozzle at the top of the ventilating duct. Additional nozzles that are symmetrically
arranged to give uniform distribution shall be installed within vertical ducts
exceeding 6.1 m and horizontal ducts exceeding 15.2 m. Dampers shall be
installed at either the top or the bottom of the duct and shall be arranged to operate
automatically upon activation of the fire-extinguishing system. When the damper
is installed at the top of the duct, the top nozzle shall be immediately below the
damper. Automatic carbon dioxide fire-extinguishing systems shall be sufficiently
sized to protect all hazards venting through a common duct simultaneously.
Ventilation system. Commercial-type cooking equipment protected by an
automatic carbon dioxide extinguishing system shall be arranged to shutoff the
ventilation system upon activation.
Special provisions for automatic sprinkler systems. Automatic sprinkler
systems protecting commercial-type cooking equipment shall be supplied from a
separate, readily accessible, indicating-type control valve that is identified.
Listed sprinklers. Sprinklers used for the protection of fryers shall be listed for
that application and installed in accordance with their listing.
Commercial cooking equipment. Portable fire extinguishers shall be provided
within a 9.1 m travel distance of commercial-type cooking equipment. Cooking
equipment involving vegetable or animal oils and fats shall be protected by a Class
K rated portable extinguisher.
Operations and maintenance. Commercial cooking systems shall be operated
and maintained in accordance with this section.
Ventilation system. The ventilation system in connection with hoods shall be
operated at the required rate of air movement, and classified grease filters shall be
in place when equipment under a kitchen grease hood is used.
2007
7/20
FIRE PROTECTION SYSTEMS
7.4.11.6.2
7.4.11.6.3
7.4.11.6.4
7.4.11.6.5
Grease extractors. Where grease extractors are installed, they shall be operated
when the commercial-type cooking equipment is used.
Cleaning. Hoods, grease-removal devices, fans, ducts and other appurtenances
shall be cleaned at intervals necessary to prevent the accumulation of grease.
Cleanings shall be recorded, and records shall state the extent, time and date of
cleaning. Such records shall be maintained on the premises.
Extinguishing system service. Automatic fire-extinguishing systems shall be
serviced at least every 6 months and after activation of the system. Inspection shall
be by qualified individuals, and a certificate of inspection shall be forwarded to the
Building official upon completion.
Fusible link and sprinkler head replacement. Fusible links and automatic
sprinkler heads shall be replaced at least annually, and other protection devices
shall be serviced or replaced in accordance with the manufacturer’s instructions.
Exception: Frangible bulbs are not required to be replaced annually.
SECTION 7.5
STANDPIPE SYSTEMS
7.5.1
General. Standpipe systems shall be provided in new buildings and structures in
accordance with this section. Fire hose threads used in connection with standpipe
systems shall be approved and shall be compatible with Civil Defence hose
threads. The location of Civil Defence hose connections shall be approved. In
buildings used for high-piled combustible storage, fire protection shall be in
accordance with Chapter 21.
7.5.2
Installation standards. Standpipe systems shall be installed in accordance with
this section and NFPA 14.
7.5.3
Required installations. Standpipe systems shall be installed where required by
Sections 7.5.3.1 through 7.5.3.6 and in the locations indicated in Sections 7.5.4,
7.5.5 and 7.5.6. Standpipe systems are permitted to be combined with automatic
sprinkler systems.
Exception: Standpipe systems are not required in Group R-3 occupancies.
Building height. Class III standpipe systems shall be installed throughout
buildings where the floor level of the highest story is located more than 9.1 m
above the lowest level of the Civil Defence vehicle access, or where the floor level
of the lowest story is located more than 9.1 m below the highest level of Civil
Defence vehicle access.
Exceptions:
1. Class I standpipes are allowed in buildings equipped throughout with an
automatic sprinkler system in accordance with Section 7.3.3.1.1 or 7.3.3.1.2.
2. Class I manual standpipes are allowed in open parking garages where the
highest floor is located not more than 45.7 m above the lowest level of Civil
Defence vehicle access.
3. Class I manual dry standpipes are allowed in open parking garages that are
subject to freezing temperatures, provided that the hose connections are
located as required for Class II standpipes in accordance with Section 7.5.5.
4. Class I standpipes are allowed in basements equipped throughout with an
automatic sprinkler system.
Group A. Class I automatic wet standpipes shall be provided in nonsprinklered
Group A buildings having an occupant load exceeding 1,000 persons.
7.5.3.1
7.5.3.2
SBC 801
2007
7/21
FIRE PROTECTION SYSTEMS
7.5.3.3
7.5.3.4
7.5.3.4.1
7.5.3.5
7.5.3.6
7.5.4
SBC 801
Exceptions:
1. Open-air-seating spaces without enclosed spaces.
2. Class I automatic dry and semiautomatic dry standpipes or manual wet
standpipes are allowed in buildings where the highest floor surface used for
human occupancy is 22.9 m or less above the lowest level of Civil Defence
vehicle access.
Covered mall buildings. A covered mall building shall be equipped throughout
with a standpipe system where required by Section 7.5.3. Covered mall buildings
not required to be equipped with a standpipe system by Section 7.5.3 shall be
equipped with Class I hose connections connected to a system sized to deliver
946.3 L/min at the most hydraulically remote outlet. Hose connections shall be
provided at each of the following locations:
1. Within the mall at the entrance to each exit passageway or corridor.
2. At each floor-level landing within enclosed stairways opening directly on the
mall.
3. At exterior public entrances to the mall.
Stages. Stages greater than 93 m2 shall be equipped with a Class III wet standpipe
system with 40 mm and 65 mm hose connections on each side of the stage.
Exception: Where the building or area is equipped throughout with an automatic
sprinkler system, the hose connections are allowed to be supplied from the
automatic sprinkler system and shall have a flow rate of not less than that required
by NFPA 14 for Class III standpipes.
Hose and cabinet. The 40 mm hose connections shall be equipped with sufficient
lengths of 40 mm hose to provide fire protection for the stage area. Hose
connections shall be equipped with an approved adjustable fog nozzle and be
mounted in a cabinet or on a rack.
Underground buildings. Underground buildings shall be equipped throughout
with a Class I automatic wet or manual wet standpipe system.
Helistops and heliports. Buildings with a helistop or heliport that are equipped
with a standpipe shall extend the standpipe to the roof level on which the helistop
or heliport is located in accordance with Section 11.7.5.
Location of Class I standpipe hose connections. Class I standpipe hose
connections shall be provided in all of the following locations:
1. In every required stairway, a hose connection shall be provided for each floor
level above or below grade. Hose connections shall be located at an
intermediate floor level landing between floors, unless otherwise approved by
the Building official.
2. On each side of the wall adjacent to the exit opening of a horizontal exit.
3. In every exit passageway at the entrance from the exit passageway to other
areas of a building.
4. In covered mall buildings, adjacent to each exterior public entrance to the mall
and adjacent to each entrance from an exit passageway or exit corridor to the
mall.
5. Where the roof has a slope less than four units vertical in 12 units horizontal
(33.3 percent slope), each standpipe shall be provided with a hose connection
located either on the roof or at the highest landing of stairways with stair
access to the roof. An additional hose connection shall be provided at the top
of the most hydraulically remote standpipe for testing purposes.
6. Where the most remote portion of a nonsprinklered floor or story is more than
45.7 m from a hose connection or the most remote portion of a sprinklered
floor or story is more than 61 m from a hose connection, the Building official
2007
7/22
FIRE PROTECTION SYSTEMS
7.5.4.1
7.5.4.2
7.5.5
7.5.5.1
7.5.5.2
7.5.5.3
7.5.6
7.5.6.1
7.5.6.2
7.5.7
7.5.7.1
7.5.7.2
SBC 801
is authorized to require that additional hose connections be provided in
approved locations.
Protection. Risers and laterals of Class I standpipe systems not located within an
enclosed stairway or pressurized enclosure shall be protected by a degree of fire
resistance equal to that required for vertical enclosures in the building in which
they are located.
Exception: In buildings equipped throughout with an approved automatic
sprinkler system, laterals that are not located within an enclosed stairway or
pressurized enclosure are not required to be enclosed within fire-resistance-rated
construction.
Interconnection. In buildings where more than one standpipe is provided, the
standpipes shall be interconnected in accordance with NFPA 14.
Location of Class II standpipe hose connections. Class II standpipe hose
connections shall be accessible and shall be located so that all portions of the
building are within 9.1 m of a nozzle attached to 30.5 m of hose.
Groups A-1 and A-2. In Group A-1 and A-2 occupancies with occupant loads of
more than 1,000, hose connections shall be located on each side of any stage, on
each side of the rear of the auditorium, on each side of the balcony, and on each
tier of dressing rooms.
Protection. Fire-resistance-rated protection of risers and laterals of Class II
standpipe systems is not required.
Class II system 25 mm hose. A minimum 25 mm hose shall be allowed to be
used for hose stations in light-hazard occupancies where investigated and listed for
this service and where approved by the Building official.
Location of Class III standpipe hose connections. Class III standpipe systems
shall have hose connections located as required for Class I standpipes in Section
7.5.4 and shall have Class II hose connections as required in Section 7.5.5.
Protection. Risers and laterals of Class III standpipe systems shall be protected as
required for Class I systems in accordance with Section 7.5.4.1.
Interconnection. In buildings where more than one Class III standpipe is
provided, the standpipes shall be interconnected at the bottom.
Cabinets. Cabinets containing fire-fighting equipment, such as standpipes, fire
hose, fire extinguishers or Civil Defence valves, shall not be blocked from use or
obscured from view.
Cabinet equipment identification. Cabinets shall be identified in an approved
manner by a permanently attached sign with letters not less than 51 mm high in a
color that contrasts with the background color, indicating the equipment contained
therein.
Exceptions:
1. Doors not large enough to accommodate a written sign shall be marked with a
permanently attached pictogram of the equipment contained therein.
2. Doors that have either an approved visual identification clear glass panel or a
complete glass door panel are not required to be marked.
Locking cabinet doors. Cabinets shall be unlocked.
Exceptions:
1. Visual identification panels of glass or other approved transparent frangible
material that is easily broken and allows access.
2. Approved locking arrangements.
3. Use Group I-3.
2007
7/23
FIRE PROTECTION SYSTEMS
7.5.8
Dry standpipes. Dry standpipes shall not be installed.
Exception: Where subject to freezing and in accordance with NFPA 14.
7.5.9
Valve supervision. Valves controlling water supplies shall be supervised in the
open position so that a change in the normal position of the valve will generate a
supervisory signal at the supervising station required by Section 7.3.4. Where a
fire alarm system is provided, a signal shall also be transmitted to the control unit.
Exceptions:
1. Valves to underground key or hub valves in roadway boxes provided by the
municipality or public utility do not require supervision.
2. Valves locked in the normal position and inspected as provided in these code
requirements in buildings not equipped with a fire alarm system.
7.5.10
During construction. Standpipe systems required during construction and
demolition operations shall be provided in accordance with Section 10.13.
7.5.11
Existing buildings. Existing structures with occupied floors located more than
15.2 m above or below the lowest level of Civil Defence access shall be equipped
with standpipes installed in accordance with Section 7.5. The standpipes shall have
an approved Civil Defence connection with hose connections at each floor level
above or below the lowest level of Civil Defence access. The Building official is
authorized to approve the installation of manual standpipe systems to achieve
compliance with this section where the responding Civil Defence is capable of
providing the required hose flow at the highest standpipe outlet.
SECTION 7.6
PORTABLE FIRE EXTINGUISHERS
7.6.1
Where required. Portable fire extinguishers shall be installed in the following
locations.
1. In all Group A, B, E, F, H, I, M, R-1, R-2, R-4 and S occupancies.
Exception: In all Group A, B and E occupancies equipped throughout with
quick-response sprinklers, fire extinguishers shall be required only in specialhazard areas.
2. Within 9.1 m of commercial cooking equipment.
3. In areas where flammable or combustible liquids are stored, used or dispensed.
4. On each floor of structures under construction, except Group R-3 occupancies,
in accordance with Section 10.15.1.
5. Where required by the sections indicated in Table 7.6.1.
6. Special-hazard areas, including but not limited to laboratories, computer rooms
and generator rooms, where required by the Building official.
7.6.2
General requirements. Fire extinguishers shall be selected, installed and
maintained in accordance with this section and NFPA 10.
Exception: The travel distance to reach an extinguisher shall not apply to the
spectator seating portions of Group A-5 occupancies.
7.6.3
Size and distribution. For occupancies that involve primarily Class A fire
hazards, the minimum sizes and distribution shall comply with Table 7.6.3(1). Fire
extinguishers for occupancies involving flammable or combustible liquids with
depths of less than or equal 6.35 mm shall be selected and placed in accordance
SBC 801
2007
7/24
FIRE PROTECTION SYSTEMS
with Table 7.6.3(2). Fire extinguishers for occupancies involving flammable or
combustible liquids with a depth of greater than 6.35 mm or involving combustible
metals shall be selected and placed in accordance with NFPA 10. Extinguishers for
Class C fire hazards shall be selected and placed on the basis of the anticipated
Class A or Class B hazard.
7.6.4
Cooking grease fires. Fire extinguishers provided for the protection of cooking
grease fires shall be of an approved type compatible with the automatic fireextinguishing system agent and in accordance with Section 7.4.11.5.
7.6.5
Conspicuous location. Extinguishers shall be located in conspicuous locations
where they will be readily accessible and immediately available for use. These
locations shall be along normal paths of travel, unless the Building official
determines that the hazard posed indicates the need for placement away from
normal paths of travel.
7.6.6
Unobstructed and unobscured. Fire extinguishers shall not be obstructed or
obscured from view. In rooms or areas in which visual obstruction cannot be
completely avoided, means shall be provided to indicate the locations of
extinguishers.
7.6.7
Hangers and brackets. Hand-held portable fire extinguishers, not housed in
cabinets, shall be installed on the hangers or brackets supplied. Hangers or
brackets shall be securely anchored to the mounting surface in accordance with the
manufacturer’s installation instructions.
7.6.8
Cabinets. Cabinets used to house fire extinguishers shall not be locked.
Exceptions:
1. Where fire extinguishers subject to malicious use or damage are provided with
a means of ready access.
2. In Group I-3 occupancies and in mental health areas in Group I-2 occupancies,
access to portable fire extinguishers shall be permitted to be locked or to be
located in staff locations provided the staff has keys.
TABLE 7.6.1
ADDITIONAL REQUIRED PORTABLE FIRE EXTINGUISHERS
SECTION
SBC 801
SUBJECT
2.3 (SBC 201)
Asphalt kettles
2.7 (SBC 201)
Open burning
2.8 (SBC 201)
Open flames
2.9 (SBC 201)
Powered industrial trucks
11.5.2
Aircraft towing vehicles
11.5.3
Aircraft welding apparatus
11.5.4
Aircraft fuel-servicing tank vehicles
11.5.5
Aircraft hydrant fuel-servicing vehicles
11.5.6
Aircraft fuel-dispensing stations
11.7.7
Heliports and helistops
13.8.4
Dry cleaning plants
10.15.1
Buildings under construction or demolition
(Continued)
2007
7/25
FIRE PROTECTION SYSTEMS
TABLE 7.6.1 (Continued)
ADDITIONAL REQUIRED PORTABLE FIRE EXTINGUISHERS
SECTION
SUBJECT
10.17.3
Roofing operations
12.4.6.4
Spray-finishing operations
12.5.5
Dip-tank operations
17.4.2
Lumberyards/woodworking facilities
17.8.8
Recycling facilities
17.9.5
Exterior lumber storage
18.3.5
Organic-coating areas
19.6.3
Industrial ovens
20.5.5
Motor fuel-dispensing facilities
20.10.6.4
Marine motor fuel-dispensing facilities
20.11.6
Repair garages
21.6.1
Rack storage
22.4.12
Tents, canopies and membrane structures
23.8.2
Tire rebuilding/storage
24.4.2.6
Welding and other hot work
27.3.6
Combustible fibers
31.8.11
Fireworks
32.3.2.1
Flammable and combustible liquids, general
32.4.3.3.1
32.4.3.7.5.2
Liquid storage rooms for flammable and combustible liquids
Indoor storage of flammable and combustible liquids
32.5.4.9
32.6.2.7
Solvent distillation units
32.6.4.10.1
Bulk plants and terminals for flammable and combustible liquids
Commercial, industrial, governmental or manufacturing establishments—
fuel dispensing
32.6.5.4.5
Farms and construction sites—flammable and combustible liquids storage
32.6.6.4
Tank vehicles for flammable and combustible liquids
34.6.5.7
Flammable solids
36.8.2
LP-gas
TABLE 7.6.3(1)
FIRE EXTINGUISHERS FOR CLASS A FIRE HAZARDS
ORDINARY
(Moderate)
LIGHT (Low)
EXTRA (High)
HAZARD
HAZARD
HAZARD
OCCUPANCY
OCCUPANCY
OCCUPANCY
Minimum
Rated Single
Extinguisher
Maximum Floor Area Per
Unit of A
2-Ac
2-A
4-Aa
278.7 m2
139.4 m2
93 m2
Maximum Floor Area For
Extinguisherb
1,045 m2
1,045 m2
1,045 m2
22.9 m
22.9 m
22.9 m
Maximum
Travel Distance
to Extinguisher
a. Two 9.5 litre water-type extinguishers shall be deemed the equivalent of one 4-A rated extinguisher.
b. NFPA 10 Appendix E-3-3 provides more details concerning application of the maximum floor area criteria.
c. Two water-type extinguishers each with a 1-A rating shall be deemed the equivalent of one 2-A rated extinguisher for
Light (Low) Hazard Occupancies.
SBC 801
2007
7/26
FIRE PROTECTION SYSTEMS
TABLE 7.6.3(2)
FLAMMABLE OR COMBUSTIBLE LIQUIDS WITH DEPTHS OF LESS
THAN OR EQUAL TO 6.4 MM
MAXIMUM TRAVEL
DISTANCE TO
BASIC MINIMUM
EXTINGUISHER
EXTINGUISHERS
TYPE OF HAZARD
RATING
(meters)
5-B
9.1
Light (Low)
10-B
15.2
10-B
9.1
Ordinary (Moderate)
20-B
15.2
40-B
9.1
Extra (High)
80-B
15.2
NOTE. For requirements on water-soluble flammable liquids and alternative sizing
criteria, see NFPA 10, Sections 3-3 and 3-4.
7.6.9
Height above floor. Portable fire extinguishers having a gross weight not
exceeding 18 kg shall be installed so that its top is not more than 1.5 m above the
floor. Hand-held portable fire extinguishers having a gross weight exceeding 18 kg
shall be installed so that its top is not more than 1.1 m above the floor. The
clearance between the floor and the bottom of installed hand-held extinguishers
shall not be less than 102 mm.
7.6.10
Wheeled units. Wheeled fire extinguishers shall be conspicuously located in a
designated location.
SECTION 7.7
FIRE ALARM AND DETECTION SYSTEMS
7.7.1
7.7.1.1
7.7.1.2
7.7.2
SBC 801
General. This section covers the application, installation, performance and
maintenance of fire alarm systems and their components in new and existing
buildings and structures. The requirements of Section 7.7.2 are applicable to new
buildings and structures. The requirements of Section 7.7.3 are applicable to
existing buildings and structures.
Construction documents. Construction documents for fire alarm systems shall be
submitted for review and approval prior to system installation. Construction
documents shall include, but not be limited to, all of the following:
1. A floor plan which indicates the use of all rooms.
2. Locations of alarm-initiating and notification appliances.
3. Alarm control and trouble signaling equipment.
4. Annunciation.
5. Power connection.
6. Battery calculations.
7. Conductor type and sizes.
8. Voltage drop calculations.
9. Manufacturers, model numbers and listing information for equipment, devices
and materials.
10. Details of ceiling height and construction.
11. The interface of fire safety control functions.
Equipment. Systems and their components shall be listed and approved for the
purpose for which they are installed.
Where required – new buildings and structures. An approved manual,
automatic, or manual and automatic fire alarm system shall be provided in new
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FIRE PROTECTION SYSTEMS
7.7.2.1
7.7.2.1.1
7.7.2.1.2
7.7.2.2
7.7.2.3
SBC 801
buildings and structures in accordance with Sections 7.7.2.1 through 7.7.2.23.
Where automatic sprinkler protection installed in accordance with Section
7.3.3.1.1 or 7.3.3.1.2 is provided and connected to the building fire alarm system,
automatic heat detection required by this section shall not be required.
An approved automatic fire detection system shall be installed in accordance with
the provisions of these code requirements and NFPA 72. Devices, combinations of
devices, appliances and equipment shall comply with Section 7.7.1.2. The
automatic fire detectors shall be smoke detectors, except that an approved
alternative type of detector shall be installed in spaces such as boiler rooms where,
during normal operation, products of combustion are present in sufficient quantity
to actuate a smoke detector.
Group A. A manual fire alarm system shall be installed in accordance with NFPA
72 in Group A occupancies having an occupant load of 300 or more. Portions of
Group E occupancies occupied for assembly purposes shall be provided with a fire
alarm system as required for the Group E occupancy.
Exception: Manual fire alarm boxes are not required where the building is
equipped throughout with an automatic sprinkler system and the alarm notification
appliances will activate upon sprinkler water flow.
System initiation in Group A occupancies with an occupant load of 1,000 or
more. Activation of the fire alarm in Group A occupancies with an occupant load
of 1,000 or more shall initiate a signal using an emergency voice/alarm
communications system in accordance with NFPA 72.
Exception: Where approved, the prerecorded announcement is allowed to be
manually deactivated for a period of time, not to exceed 3 minutes, for the sole
purpose of allowing a live voice announcement from an approved, constantly
attended location.
Emergency power. Emergency voice/alarm communications systems shall be
provided with an approved emergency power source.
Group B. A manual fire alarm system shall be installed in Group B occupancies
having an occupant load of 500 or more persons or more than 100 persons above
or below the lowest level of exit discharge.
Exception: Manual fire alarm boxes are not required where the building is
equipped throughout with an automatic sprinkler system and the alarm notification
appliances will activate upon sprinkler water flow.
Group E. A manual fire alarm system shall be installed in Group E occupancies.
When automatic sprinkler systems or smoke detectors are installed, such systems
or detectors shall be connected to the building fire alarm system.
Exceptions:
1. Group E occupancies with an occupant load of less than 50.
2. Manual fire alarm boxes are not required in Group E occupancies where all the
following apply:
2.1 Interior corridors are protected by smoke detectors with alarm
verification.
2.2 Auditoriums, cafeterias, gymnasiums and the like are protected by heat
detectors or other approved detection devices.
2.3 Shops and laboratories involving dusts or vapors are protected by heat
detectors or other approved detection devices.
2.4 Off-premises monitoring is provided.
2.5 The capability to activate the evacuation signal from a central point is
provided.
2.6 In buildings where normally occupied spaces are provided with a twoway communication system between such spaces and a constantly
2007
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FIRE PROTECTION SYSTEMS
attended receiving station from where a general evacuation alarm can be
sounded, except in locations specifically designated by the Building
official.
7.7.2.4
Group F. A manual fire alarm system shall be installed in Group F occupancies
that are two or more stories in height and have an occupant load of 500 or more
above or below the lowest level of exit discharge.
Exception: Manual fire alarm boxes are not required where the building is
equipped throughout with an automatic sprinkler system and the alarm notification
appliances will activate upon sprinkler water flow.
7.7.2.5
Group H. A manual fire alarm system shall be installed in Group H-5 occupancies
and in occupancies used for the manufacture of organic coatings. An automatic
smoke detection system shall be installed for highly toxic gases, organic peroxides
and oxidizers in accordance with Chapters 35, 37 and 38, respectively.
7.7.2.6
Group I. A manual fire alarm system and an automatic fire detection system shall
be installed in Group I occupancies. An electrically supervised, automatic smoke
detection system shall be provided in waiting areas that are open to corridors.
Exception: Manual fire alarm boxes in patient sleeping areas of Group I-1 and I-2
occupancies shall not be required at exits if located at all nurses’ control stations or
other constantly attended staff locations, provided such stations are visible and
continuously accessible and that travel distances required in Section 7.7.4.1 are not
exceeded.
7.7.2.6.1
Group I-2. Corridors in nursing homes (both intermediate care and skilled nursing
facilities), detoxification facilities and spaces open to the corridors shall be
equipped with an automatic fire detection system.
Exceptions:
1. Corridor smoke detection is not required in smoke compartments that contain
patient sleeping rooms where patient sleeping units are provided with smoke
detectors that comply with UL 268. Such detectors shall provide a visual
display on the corridor side of each patient sleeping unit and shall provide an
audible and visual alarm at the nursing station attending each unit.
2. Corridor smoke detection is not required in smoke compartments that contain
patient sleeping rooms where patient sleeping unit doors are equipped with
automatic door-closing devices with integral smoke detectors on the unit sides
installed in accordance with their listing, provided that the integral detectors
perform the required alerting function.
7.7.2.6.2
Group I-3 occupancies. Group I-3 occupancies shall be equipped with a manual
and automatic fire alarm system installed for alerting staff.
7.7.2.6.2.1 System initiation. Actuation of an automatic fire-extinguishing system, a manual
fire alarm box or a fire detector shall initiate an approved fire alarm signal which
automatically notifies staff. Presignal systems shall not be used.
7.7.2.6.2.2 Manual fire alarm boxes. Manual fire alarm boxes are not required to be located
in accordance with Section 7.7.4 where the fire alarm boxes are provided at staffattended locations having direct supervision over areas where manual fire alarm
boxes have been omitted.
Manual fire alarm boxes are allowed to be locked in areas occupied by detainees,
provided that staff members are present within the subject area and have keys
readily available to operate the manual fire alarm boxes.
7.7.2.6.2.3 Smoke detectors. An approved automatic smoke detection system shall be
installed throughout resident housing areas, including sleeping areas and
contiguous day rooms, group activity spaces and other common spaces normally
accessible to residents.
SBC 801
2007
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FIRE PROTECTION SYSTEMS
7.7.2.7
7.7.2.7.1
7.7.2.8
7.7.2.8.1
7.7.2.8.2
7.7.2.8.3
SBC 801
Exceptions:
1. Other approved smoke-detection arrangements providing equivalent
protection, including, but not limited to, placing detectors in exhaust ducts
from cells or behind protective guards listed for the purpose, are allowed when
necessary to prevent damage or tampering.
2. Sleeping units in Use Conditions 2 and 3.
3. Smoke detectors are not required in sleeping units with four or fewer
occupants in smoke compartments that are equipped throughout with an
approved automatic sprinkler system.
Group M. A manual fire alarm system shall be installed in Group M occupancies,
other than covered mall buildings complying with Section 2.15 of the SBC 201,
having an occupant load of 500 or more persons or more than 100 persons above
or below the lowest level of exit discharge.
Exception: Manual fire alarm boxes are not required where the building is
equipped throughout with an automatic sprinkler system and the alarm notification
appliances will activate upon sprinkler water flow.
Occupant notification. During times that the building is occupied, in lieu of the
automatic activation of alarm notification appliances, the manual fire alarm system
shall be allowed to activate an alarm signal at a constantly attended location from
which evacuation instructions shall be initiated over an emergency voice/alarm
communication system installed in accordance with Section 7.7.2.12.2.
The emergency voice/alarm communication system shall be allowed to be used for
other announcements provided the manual fire alarm use takes precedence over
any other use.
Group R-1. Fire alarm systems shall be installed in Group R-1 occupancies as
required in Sections 7.7.2.8.1 through 7.7.2.8.3.
Manual fire alarm system. A manual fire alarm system shall be installed in
Group R-1 occupancies.
Exceptions:
1. A manual fire alarm system is not required in buildings not more than two
stories in height where all individual guestrooms and contiguous attic and
crawl spaces are separated from each other and public or common areas by at
least 1 hour fire partitions and each individual guestroom has an exit directly to
a public way, exit court or yard.
2. Manual fire alarm boxes are not required throughout the building when the
following conditions are met:
2.1 The building is equipped throughout with an automatic sprinkler system
installed in accordance with Section 7.3.3.1.1 or 7.3.3.1.2;
2.2 The notification appliances will activate upon sprinkler water flow; and
2.3 At least one manual fire alarm box is installed at an approved location.
Automatic fire alarm system. An automatic fire alarm system shall be installed
throughout all interior corridors serving guestrooms.
Exception: An automatic fire detection system is not required in buildings that do
not have interior corridors serving guestrooms and each guestroom has a means of
egress door opening directly to an exterior exit access that leads directly to an exit.
Smoke alarms. Smoke alarms shall be installed as required by Section 7.7.2.10. In
buildings that are not equipped throughout with an automatic sprinkler system
installed in accordance with Section 7.3.3.1.1 or 7.3.3.1.2, the smoke alarms in
guestrooms shall be connected to an emergency electrical system and shall be
annunciated by guestroom at a constantly attended location from which the fire
alarm system is capable of being manually activated.
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FIRE PROTECTION SYSTEMS
Group R-2. A manual fire alarm system shall be installed in Group R-2
occupancies where:
1. Any dwelling unit or sleeping unit is located three or more stories above the
lowest level of exit discharge;
2. Any dwelling unit or sleeping unit is located more than one story below the
highest level of exit discharge of exits serving the dwelling unit or sleeping
unit; or
3. The building contains more than 16 dwelling units or sleeping units.
Exceptions:
1. A fire alarm system is not required in buildings not more than two stories in
height where all dwelling units or sleeping units and contiguous attic and crawl
spaces are separated from each other and public or common areas by at least 1
hour fire partitions and each dwelling unit or sleeping unit has an exit directly
to a public way, exit court or yard.
2. Manual fire alarm boxes are not required throughout the building when the
following conditions are met:
2.1 The building is equipped throughout with an automatic sprinkler system
in accordance with Section 7.3.3.1.1 or Section 7.3.3.1.2;
2.2 The notification appliances will activate upon sprinkler flow; and
2.3 At least one manual fire alarm box is installed at an approved location.
3. A fire alarm system is not required in buildings that do not have interior
corridors serving dwelling units and are protected by an approved automatic
sprinkler system installed in accordance with Section 7.3.3.1.1 or 7.3.3.1.2,
provided that dwelling units either have a means of egress door opening
directly to an exterior exit access that leads directly to the exits or are served
by open-ended corridors designed in accordance with Section 8.22.6,
Exception 4.
7.7.2.10
Single and multiple-station smoke alarms. Listed single and multiple-station
smoke alarms shall be installed in accordance with the provisions of these code
requirements and the household fire-warning equipment provisions of NFPA 72.
7.7.2.10.1 Where required. Single or multiple-station smoke alarms shall be installed in the
locations described in Sections 7.7.2.10.1 through 7.7.2.10.1.4.
7.7.2.10.1.1 Group R-1. Single or multiple-station smoke alarms shall be installed in all of the
following locations in Group R-1:
1. In sleeping areas.
2. In every room in the path of the means of egress from the sleeping area to the
door leading from the sleeping unit.
3. In each story within the sleeping unit, including basements. For sleeping units
with split levels and without an intervening door between the adjacent levels, a
smoke alarm installed on the upper level shall suffice for the adjacent lower
level provided that the lower level is less than one full story below the upper
level.
7.7.2.10.1.2 Groups R-2, R-3, R-4 and I-1. Single or multiple-station smoke alarms shall be
installed and maintained in Groups R-2, R-3, R-4 and I-1 regardless of occupant
load at all of the following locations:
1. On the ceiling or wall outside of each separate sleeping area in the immediate
vicinity of bedrooms.
2. In each room used for sleeping purposes.
3. In each story within a dwelling unit, including basements but not including
crawl spaces and uninhabitable attics. In dwelling units with split levels and
without an intervening door between the adjacent levels, a smoke alarm
installed on the upper level shall suffice for the adjacent lower level provided
7.7.2.9
SBC 801
2007
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FIRE PROTECTION SYSTEMS
that the lower level is less than one full story below the upper level.
7.7.2.10.1.3 Group I-1. Single or multiple-station smoke alarms shall be installed and
7.7.2.10.2
7.7.2.10.3
7.7.2.10.4
7.7.2.11
7.7.2.11.1
7.7.2.11.2
7.7.2.11.3
SBC 801
maintained in sleeping areas in occupancies in Group I-1. Single or multiplestation smoke alarms shall not be required where the building is equipped
throughout with an automatic fire detection system in accordance with Section
7.7.2.6.
Power source. In new construction, required smoke alarms shall receive their
primary power from the building wiring where such wiring is served from a
commercial source and shall be equipped with a battery backup. Smoke alarms
shall emit a signal when the batteries are low. Wiring shall be permanent and
without a disconnecting switch other than as required for overcurrent protection.
Exception: Smoke alarms are not required to be equipped with battery backup in
Group R-1 where they are connected to an emergency electrical system.
Interconnection. Where more than one smoke alarm is required to be installed
within an individual dwelling unit or sleeping unit in Group R-2, R-3 or R-4, or
within an individual sleeping unit in Group R-1, the smoke alarms shall be
interconnected in such a manner that the activation of one alarm will activate all of
the alarms in the individual unit. The alarm shall be clearly audible in all
bedrooms over background noise levels with all intervening doors closed.
Acceptance testing. When the installation of the alarm devices is complete, each
detector and inter-connecting wiring for multiple-station alarm devices shall be
tested in accordance with the household fire warning equipment provisions of
NFPA 72.
Special amusement buildings. An approved automatic smoke detection system
shall be provided in special amusement buildings in accordance with this section.
Exception: In areas where ambient conditions will cause a smoke detection
system to alarm, an approved alternative type of automatic detector shall be
installed.
Alarm. Activation of any single smoke detector, the automatic sprinkler system or
any other automatic fire detection device shall immediately sound an alarm at the
building at a constantly attended location from which emergency action can be
initiated, including the capability of manual initiation of requirements in Section
7.7.2.11.2.
System response. The activation of two or more smoke detectors, a single smoke
detector with alarm verification, the automatic sprinkler system or other approved
fire detection device shall automatically:
1. Cause illumination of the means of egress with light of not less than 1 footcandle (11 lux) at the walking surface level;
2. Stop any conflicting or confusing sounds and visual distractions; and
3. Activate an approved directional exit marking that will become apparent in an
emergency.
Such system response shall also include activation of a prerecorded message,
clearly audible throughout the special amusement building, instructing patrons to
proceed to the nearest exit. Alarm signals used in conjunction with the prerecorded
message shall produce a sound which is distinctive from other sounds used during
normal operation.
The wiring to the auxiliary devices and equipment used to accomplish the above
fire safety functions shall be monitored for integrity in accordance with NFPA 72.
Emergency voice/alarm communication system. An emergency voice/alarm
communication system, which is also allowed to serve as a public address system,
shall be installed in accordance with NFPA 72 and be audible throughout the
entire special amusement building.
2007
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FIRE PROTECTION SYSTEMS
High-rise buildings. Buildings having floors used for human occupancy located
more than 22.9 m above the lowest level of Civil Defence vehicle access shall be
provided with an automatic fire alarm system and an emergency voice/alarm
communication system in accordance with Section 7.7.2.12.2.
Exceptions:
1. Airport traffic control towers in accordance with Section 7.7.2.22 and the SBC
201.
2. Open parking garages in accordance with Section 2.19 of the SBC 201.
3. Buildings with an occupancy in Group A-5 in accordance with Section 2.3 of
the SBC 201.
4. Low-hazard special occupancies in accordance with Section 3.3 of the SBC
201.
5. Buildings with an occupancy in Group H-1, H-2 or H-3 in accordance with
Section 2.28 of the SBC 201.
7.7.2.12.1 Automatic fire detection. Smoke detectors shall be provided in accordance with
this section. Smoke detectors shall be connected to an automatic fire alarm system.
The activation of any detector required by this section shall operate the emergency
voice/alarm communication system. Smoke detectors shall be located as follows:
1. In each mechanical equipment, electrical, transformer, telephone equipment or
similar room which is not provided with sprinkler protection, elevator machine
rooms, and in elevator lobbies.
2. In the main return air and exhaust air plenum of each air-conditioning system
having a capacity greater than 0.94 m3/s. Such detectors shall be located in a
serviceable area downstream of the last duct inlet.
3. At each connection to a vertical duct or riser serving two or more stories from
a return air duct or plenum of an air-conditioning system. In Group R-1 and R2 occupancies, a listed smoke detector is allowed to be used in each return-air
riser carrying not more than 2.4 m3/s and serving not more than 10 air-inlet
openings.
7.7.2.12.2 Emergency voice/alarm communication system. The operation of any automatic
fire detector, sprinkler water-flow device or manual fire alarm box shall
automatically sound an alert tone followed by voice instructions giving approved
information and directions on a general or selective basis to the following terminal
areas on a minimum of the alarming floor, the floor above, and the floor below in
accordance with the building’s fire safety and evacuation plans required by
Section 5.4.
1. Elevator lobbies.
2. Corridors.
3. Rooms and tenant spaces exceeding 93 m2 in area.
4. Dwelling units and sleeping units in Group R-2 occupancies.
5. Sleeping units in Group R-1 occupancies.
6. Areas of refuge as defined in Section 8.2.
Exception: In Group I-1 and I-2 occupancies, the alarm shall sound in a constantly
attended area and a general occupant notification shall be broadcast over the
overhead page.
7.7.2.12.2.1 Manual override. A manual override for emergency voice communication shall
be provided for all paging zones.
7.7.2.12.2.2 Live voice messages. The emergency voice/alarm communication system shall
also have the capability to broadcast live voice messages through speakers located
in elevators, exit stairways, and throughout a selected floor or floors.
7.7.2.12.2.3 Standard. The emergency voice/alarm communication system shall be designed
and installed in accordance with NFPA 72.
7.7.2.12
SBC 801
2007
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FIRE PROTECTION SYSTEMS
7.7.2.12.3
7.7.2.13
7.7.2.14
7.7.2.15
7.7.2.16
7.7.2.17
7.7.2.18
7.7.2.18.1
7.7.2.18.2
7.7.2.19
7.7.2.19.1
7.7.2.20
SBC 801
Civil Defence communication system. An approved two-way, Civil Defence
communication system designed and installed in accordance with NFPA 72 shall
be provided for Civil Defence use. It shall operate between a fire command center
complying with Section 3.9 and elevators, elevator lobbies, emergency and
standby power rooms, fire pump rooms, areas of refuge and inside enclosed exit
stairways. The Civil Defence communication device shall be provided at each
floor level within the enclosed exit stairway.
Exception: Civil Defence radio systems where approved by the Civil Defence.
Atriums connecting more than two stories. A fire alarm system shall be
installed in occupancies with an atrium that connects more than two stories. The
system shall be activated in accordance with Section 7.7.7. Such occupancies in
Group A, E or M shall be provided with an emergency voice/alarm
communication system complying with the requirements of Section 7.7.2.12.2.
High-piled combustible storage areas. An automatic fire detection system shall
be installed throughout high-piled combustible storage areas where required by
Section 21.6.5.
Delayed egress locks. Where delayed egress locks are installed on means of
egress doors in accordance with Section 8.8.1.8.6, an automatic smoke or heat
detection system shall be installed as required by that section.
Aerosol storage uses. Aerosol storage rooms and general-purpose warehouses
containing aerosols shall be provided with an approved manual fire alarm system
where required by these code requirements.
Lumber, plywood and veneer mills. Lumber, plywood and veneer mills shall be
provided with a manual fire alarm system.
Underground buildings with smoke exhaust systems. Where a smoke exhaust
system is installed in an underground building in accordance with the SBC 201,
automatic fire detectors shall be provided in accordance with this section.
Smoke detectors. A minimum of one smoke detector listed for the intended
purpose shall be installed in the following areas:
1. Mechanical equipment, electrical, transformer, telephone equipment, elevator
machine or similar rooms.
2. Elevator lobbies.
3. The main return and exhaust air plenum of each air-conditioning system
serving more than one story and located in a serviceable area downstream of
the last duct inlet.
4. Each connection to a vertical duct or riser serving two or more floors from
return air ducts or plenums of heating, ventilating and air-conditioning
systems, except that in Group R occupancies, a listed smoke detector is
allowed to be used in each return-air riser carrying not more than 2.4 m3/s and
serving not more than 10 air inlet openings.
Alarm required. Activation of the smoke exhaust system shall activate an audible
alarm at a constantly attended location.
Underground buildings. Where the lowest level of a structure is more than 18.3
m below the lowest level of exit discharge, the structure shall be equipped
throughout with a manual fire alarm system, including an emergency voice/alarm
communication system installed in accordance with Section 7.7.2.12.2.
Public address system. Where a fire alarm system is not required by Section
7.7.2, a public address system shall be provided which shall be capable of
transmitting voice communications to the highest level of exit discharge serving
the underground portions of the structure and all levels below.
2
Covered mall buildings. Covered mall buildings exceeding 4,645 m in total floor
area shall be provided with an emergency voice/alarm communication system. An
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FIRE PROTECTION SYSTEMS
7.7.2.21
7.7.2.22
7.7.2.23
7.7.3
7.7.3.1
7.7.3.1.1
7.7.3.1.2
7.7.3.1.3
7.7.3.1.4
7.7.3.1.5
SBC 801
emergency voice/alarm communication system serving a mall, required or
otherwise, shall be accessible to the Civil Defence. The system shall be provided
in accordance with Section 7.7.2.12.2.
Residential aircraft hangars. A minimum of one listed smoke alarm shall be
installed within a residential aircraft hangar as defined in the SBC 201 and shall be
interconnected into the residential smoke alarm or other sounding device to
provide an alarm which will be audible in all sleeping areas of the dwelling.
Airport traffic control towers. An automatic fire detection system shall be
provided in airport traffic control towers.
Battery rooms. An approved automatic smoke detection system shall be installed
in areas containing stationary lead-acid battery systems having a liquid capacity of
more than 189 L. The detection system shall be supervised by an approved central,
proprietary, or remote station service or a local alarm which will sound an audible
signal at a constantly attended location.
Where required—retroactive in existing buildings and structures. An
approved manual, automatic or manual and automatic fire alarm system shall be
installed in existing buildings and structures in accordance with Sections 7.7.3.1
through 7.7.3.1.8. Where automatic sprinkler protection is provided in accordance
with Section 7.3.3.1.1 or 7.3.3.1.2 and connected to the building fire alarm system,
automatic heat detection required by this section shall not be required.
An approved automatic fire detection system shall be installed in accordance with
the provisions of these code requirements and NFPA 72. Devices, combinations of
devices, appliances and equipment shall be approved. The automatic fire detectors
shall be smoke detectors, except an approved alternative type of detector shall be
installed in spaces such as boiler rooms where, during normal operation, products
of combustion are present in sufficient quantity to actuate a smoke detector.
Occupancy requirements. A fire alarm system shall be installed in accordance
with Sections 7.7.3.1.1 through 7.7.3.1.8.
Exception: Occupancies with an existing, previously approved fire alarm system.
Group E. A fire alarm system shall be installed in existing Group E occupancies
in accordance with Section 7.7.2.3.
Exceptions:
1. A building with a maximum area of 93 m2 that contains a single classroom and
is located no closer than 15.2 m from another building.
2. Group E with an occupant load less than 50.
Group I-1. A fire alarm system shall be installed in existing Group I-1 residential
care/assisted living facilities.
Exception: Where each sleeping room has a means of egress door opening
directly to an exterior egress balcony that leads directly to the exits in accordance
with Section 8.13.5, and the building is not more than three stories in height.
Group I-2. A fire alarm system shall be installed in existing Group I-2
occupancies in accordance with Section 7.7.2.6.
Group I-3. A fire alarm system shall be installed in existing Group I-3
occupancies in accordance with Section 7.7.2.6.1.
Group R-1 hotels and motels. A fire alarm system shall be installed in existing
Group R-1 hotels and motels more than three stories or with more than 20
guestrooms.
Exception: Buildings less than two stories in height where all guestrooms, attics
and crawl spaces are separated by 1 hour fire-resistance-rated construction and
each guestroom has direct access to a public way, exit court or yard.
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FIRE PROTECTION SYSTEMS
7.7.3.1.6
7.7.3.1.7
7.7.3.1.8
7.7.3.2
7.7.3.2.1
7.7.3.2.2
SBC 801
Group R-1 boarding and rooming houses. A fire alarm system shall be installed
in existing Group R-1 boarding and rooming houses.
Exception: Buildings that have single-station smoke alarms meeting or exceeding
the requirements of Section 7.7.2.10.1 and where the fire alarm system includes at
least one manual fire alarm box per floor arranged to initiate the alarm.
Group R-2. A fire alarm system shall be installed in existing Group R-2
occupancies more than three stories in height or with more than 16 dwelling units
or sleeping units.
Exceptions:
1. Where each living unit is separated from other contiguous living units by fire
barriers having a fire-resistance rating of not less than 0.75 hour, and where
each living unit has either its own independent exit or its own independent
stairway or ramp discharging at grade.
2. A separate fire alarm system is not required in buildings that are equipped
throughout with an approved supervised automatic sprinkler system installed
in accordance with Section 7.3.3.1.1 or 7.3.3.1.2 and having a local alarm to
notify all occupants.
3. A fire alarm system is not required in buildings that do not have interior
corridors serving dwelling units and are protected by an approved automatic
sprinkler system installed in accordance with Section 7.3.3.1.1 or 7.3.3.1.2,
provided that dwelling units either have a means of egress door opening
directly to an exterior exit access that leads directly to the exits or are served
by open-ended corridors designed in accordance with Section 8.22.6,
Exception 4.
Group R-4. A fire alarm system shall be installed in existing Group R-4
residential care/assisted living facilities.
Exceptions:
1. Where there are interconnected smoke alarms meeting the requirements of
Section 7.7.2.10 and there is at least one manual fire alarm box per floor
arranged to sound continuously the smoke alarms.
2. Other manually activated, continuously sounding alarms approved by the
Building official.
Single and multiple-station smoke alarms. Single and multiple-station smoke
alarms shall be installed in existing Group R occupancies in accordance with
Sections 7.7.3.2.1 through 7.7.3.2.3.
General. Existing Group R occupancies not already provided with single-station
smoke alarms shall be provided with approved single-station smoke alarms.
Installation shall be in accordance with Section 7.7.2.10, except as provided in
Sections 7.7.3.2.2 and 7.7.3.2.3.
Interconnection. Where more than one smoke alarm is required to be installed
within an individual dwelling unit in Group R-2, R-3 or R-4, or within an
individual sleeping unit in Group R-1, the smoke alarms shall be interconnected in
such a manner that the activation of one alarm will activate all of the alarms in the
individual unit. The alarm shall be clearly audible in all bedrooms over
background noise levels with all intervening doors closed.
Exceptions:
1. Interconnection is not required in buildings that are not undergoing alterations,
repairs or construction of any kind.
2. Smoke alarms in existing areas are not required to be interconnected where
alterations or repairs do not result in the removal of interior wall or ceiling
finishes exposing the structure, unless there is an attic, crawl space or
basement available which could provide access for interconnection without the
2007
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FIRE PROTECTION SYSTEMS
7.7.3.2.3
7.7.4
7.7.4.1
7.7.4.2
7.7.4.3
7.7.4.4
7.7.4.5
removal of interior finishes.
Power source. In Group R occupancies, single-station smoke alarms shall receive
their primary power from the building wiring provided that such wiring is served
from a commercial source and shall be equipped with a battery backup. Smoke
alarms shall emit a signal when the batteries are low. Wiring shall be permanent
and without a disconnecting switch other than as required for overcurrent
protection.
Exception: Smoke alarms are permitted to be solely battery operated: in existing
buildings where no construction is taking place; in buildings that are not served
from a commercial power source; and in existing areas of buildings undergoing
alterations or repairs that do not result in the removal of interior walls or ceiling
finishes exposing the structure, unless there is an attic, crawl space or basement
available which could provide access for building wiring without the removal of
interior finishes.
Manual fire alarm boxes. Manual fire alarm boxes shall be installed in
accordance with Sections 7.7.4.1 through 7.7.4.5.
Location. Manual fire alarm boxes shall be located not more than 1.5 m from the
entrance to each exit. Additional manual fire alarm boxes shall be located so that
travel distance to the nearest box does not exceed 61 m.
Exception: Manual fire alarm boxes shall not be required in Group E occupancies
where the building is equipped throughout with an approved automatic sprinkler
system, the notification appliances will activate on sprinkler water flow and
manual activation is provided from a normally occupied location.
Height. The height of the manual fire alarm boxes shall be a minimum of 1,067
mm and a maximum of 1.2 m measured vertically, from the floor level to the
activating handle or lever of the box.
Color. Manual fire alarm boxes shall be red in color.
Signs. Where fire alarm systems are not monitored by a supervising station, an
approved permanent sign shall be installed adjacent to each manual fire alarm box
that reads: WHEN ALARM SOUNDS – CALL FIRE DEPARTMENT.
Exception: Where the manufacturer has permanently provided this information on
the manual fire alarm box.
Protective covers. The Building official is authorized to require the installation of
listed manual fire alarm box protective covers to prevent malicious false alarms or
provide the manual fire alarm box with protection from physical damage. The
protective cover shall be transparent or red in color with a transparent face to
permit visibility of the manual fire alarm box. Each cover shall include proper
operating instructions. A protective cover that emits a local alarm signal shall not
be installed unless approved.
7.7.5
Power supply. The primary and secondary power supply for the fire alarm system
shall be provided in accordance with NFPA 72.
7.7.6
Wiring. Wiring shall comply with the requirements of the SBC 401 and NFPA 72.
Wireless protection systems utilizing radio-frequency transmitting devices shall
comply with the special requirements for supervision of low-power wireless
systems in NFPA 72.
7.7.7
Activation. Where an alarm notification system is required by another section of
these code requirements, it shall be activated by:
1. Required automatic fire alarm system.
SBC 801
2007
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FIRE PROTECTION SYSTEMS
2. Sprinkler water-flow devices.
3. Required manual fire alarm boxes.
7.7.8
Presignal system. Presignal systems shall not be installed unless approved by the
Building official and the Civil Defence. Where a presignal system is installed, 24
hours personnel supervision shall be provided at a location approved by the Civil
Defence, in order that the alarm signal can be actuated in the event of fire or other
emergency.
7.7.9
Zones. Each floor shall be zoned separately and a zone shall not exceed 2.1 m2.
The length of any zone shall not exceed 91.4 m in any direction.
Exception: Automatic sprinkler system zones shall not exceed the area permitted
by NFPA 13.
Zoning indicator panel. A zoning indicator panel and the associated controls
shall be provided in an approved location. The visual zone indication shall lock in
until the system is reset and shall not be canceled by the operation of an audiblealarm silencing switch.
High-rise buildings. In buildings that have floors located more than 22.9 m above
the lowest level of Civil Defence vehicle access that are occupied for human
occupancy, a separate zone by floor shall be provided for all of the following types
of alarm-initiating devices where provided:
1. Smoke detectors.
2. Sprinkler water-flow devices.
3. Manual fire alarm boxes.
4. Other approved types of automatic fire detection devices or suppression
systems.
7.7.9.1
7.7.9.2
7.7.10
7.7.10.1
7.7.10.1.1
7.7.10.1.2
7.7.10.1.3
SBC 801
Alarm notification appliances. Alarm notification appliances shall be provided
and shall be listed for their purpose.
Visible alarms. Visible alarm notification appliances shall be provided in
accordance with Sections 7.7.10.1.1 through 7.7.10.1.4.
Exceptions:
1. Visible alarm notification appliances are not required in alterations, except
where an existing fire alarm system is upgraded or replaced, or a new fire
alarm system is installed.
2. Visible alarm notification appliances shall not be required in exits as defined in
Section 8.2.1.
Public and common areas. Visible alarm notification appliances shall be
provided in public areas and common areas.
Employee work areas. Where employee work areas have audible alarm coverage,
the wiring system shall be designed so that visible alarm notification appliances
can be integrated into the alarm system.
Groups I-1 and R-1. Group I-1 and R-1 sleeping units in accordance with Table
7.7.10.1.3 shall be provided with a visible alarm notification appliance, activated
by both the in-room smoke alarm and the building fire alarm system.
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FIRE PROTECTION SYSTEMS
TABLE 7.7.10.1.3
VISIBLE AND AUDIBLE ALARMS
6 to 25
SLEEPING ACCOMMODATIONS
WITH VISIBLE AND AUDIBLE
ALARMS
2
26 to 50
4
51 to 75
7
76 to 100
9
101 to 150
12
151 to 200
14
201 to 300
17
301 to 400
20
401 to 500
22
501 to 1,000
5% of total
1,001 and over
50 plus 3 for each 100 over 1,000
NUMBER OF SLEEPING
UNITS
7.7.10.1.4
7.7.10.2
7.7.11
SBC 801
Group R-2. In Group R-2 occupancies required by Section 7.7 to have a fire alarm
system, all dwelling units and sleeping units shall be provided with the capability
to support visible alarm notification appliances in accordance with ICC A117.1.
Audible alarms. Audible alarm notification appliances shall be provided and
sound a distinctive sound that is not to be used for any purpose other than that of a
fire alarm. The audible alarm notification appliances shall provide a sound
pressure level of 15 decibels (dBA) above the average ambient sound level or 5
dBA above the maximum sound level having a duration of at least 60 seconds,
whichever is greater, in every occupied space within the building. The minimum
sound pressure levels shall be: 70 dBA in occupancies in Groups R and I-1; 90
dBA in mechanical equipment rooms; and 60 dBA in other occupancies. The
maximum sound pressure level for audible alarm notification appliances shall be
120 dBA at the minimum hearing distance from the audible appliance. Where the
average ambient noise is greater than 105 dBA, visible alarm notification
appliances shall be provided in accordance with NFPA 72 and audible alarm
notification appliances shall not be required.
Exception: Visible alarm notification appliances shall be allowed in lieu of
audible alarm notification appliances in critical care areas of Group I-2
occupancies.
Fire safety functions. Automatic fire detectors utilized for the purpose of
performing fire safety functions shall be connected to the building’s fire alarm
control panel where a fire alarm system is required by Section 7.7.2. Detectors
shall, upon actuation, perform the intended function and activate the alarm
notification appliances or activate a visible and audible supervisory signal at a
constantly attended location. In buildings not required to be equipped with a fire
alarm system, the automatic fire detector shall be powered by normal electrical
service and, upon actuation, perform the intended function. The detectors shall be
located in accordance with NFPA 72.
2007
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FIRE PROTECTION SYSTEMS
7.7.12
Duct smoke detectors. Duct smoke detectors shall be connected to the building’s
fire alarm control panel when a fire alarm system is provided. Activation of a duct
smoke detector shall initiate a visible and audible supervisory signal at a
constantly attended location. Duct smoke detectors shall not be used as a substitute
for required open area detection.
Exceptions:
1. The supervisory signal at a constantly attended location is not required where
duct smoke detectors activate the building’s alarm notification appliances.
2. In occupancies not required to be equipped with a fire alarm system, actuation
of a smoke detector shall activate a visible and an audible signal in an
approved location. Smoke detector trouble conditions shall activate a visible or
audible signal in an approved location and shall be identified as air duct
detector trouble.
7.7.13
Access. Access shall be provided to each detector for periodic inspection,
maintenance and testing.
7.7.14
Fire-extinguishing systems. Automatic fire-extinguishing systems shall be
connected to the building fire alarm system where a fire alarm system is required
by another section of these code requirements or is otherwise installed.
7.7.15
Monitoring. Where required by this chapter or by the SBC 201, an approved
supervising station in accordance with NFPA 72 shall monitor fire alarm systems.
Exception: Supervisory service is not required for:
1. Single and multiple-station smoke alarms required by Section 7.7.2.10.
2. Smoke detectors in Group I-3 occupancies.
3. Automatic sprinkler systems in one- and two-family dwellings.
7.7.16
Automatic telephone-dialing devices. Automatic telephone-dialing devices used
to transmit an emergency alarm shall not be connected to any Civil Defence
telephone number unless approved by the Building official.
7.7.17
Acceptance tests. Upon completion of the installation of the fire alarm system,
alarm notification appliances and circuits, alarm-initiating devices and circuits,
supervisory-signal initiating devices and circuits, signaling line circuits, and
primary and secondary power supplies shall be tested in accordance with NFPA
72.
7.7.18
Record of completion. A record of completion in accordance with NFPA 72
verifying that the system has been installed in accordance with the approved plans
and specifications shall be provided.
7.7.19
Instructions. Operating, testing and maintenance instructions and record drawings
(“as builts”) and equipment specifications shall be provided at an approved
location.
7.7.20
Inspection, testing and maintenance. The maintenance and testing schedules and
procedures for fire alarm and fire detection systems shall be in accordance with
this section and Chapter 7 of NFPA 72.
Maintenance required. Whenever or wherever any device, equipment, system,
condition, arrangement, level of protection or any other feature is required for
compliance with the provisions of these code requirements, such device,
7.7.20.1
SBC 801
2007
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FIRE PROTECTION SYSTEMS
7.7.20.2
7.7.20.3
7.7.20.4
7.7.20.4.1
7.7.20.5
equipment, system, condition, arrangement, level of protection or other feature
shall thereafter be continuously maintained in accordance with applicable NFPA
requirements or as directed by the Building official.
Testing. Testing shall be performed in accordance with the schedules in Chapter 7
of NFPA 72 or more frequently where required by the Building official. Where
automatic testing is performed at least weekly by a remotely monitored fire alarm
control unit specifically listed for the application, the manual testing frequency
shall be permitted to be extended to annual.
Exception: Devices or equipment that are inaccessible for safety considerations
shall be tested during scheduled shutdowns where approved by the Building
official, but not less than every 18 months.
Detector sensitivity. Detector sensitivity shall be checked within 1 year after
installation and every alternate year thereafter. After the second calibration test,
where sensitivity tests indicate that the detector has remained within its listed and
marked sensitivity range (or 4 percent obscuration light grey smoke, if not
marked), the length of time between calibration tests shall be permitted to be
extended to a maximum of 5 years. Where the frequency is extended, records of
detector-caused nuisance alarms and subsequent trends of these alarms shall be
maintained. In zones or areas where nuisance alarms show any increase over the
previous year, calibration tests shall be performed.
Method. To ensure that each smoke detector is within its listed and marked
sensitivity range, it shall be tested using either a calibrated test method, the
manufacturer’s calibrated sensitivity test instrument, listed control equipment
arranged for the purpose, a smoke detector/control unit arrangement whereby the
detector causes a signal at the control unit where its sensitivity is outside its
acceptable sensitivity range or other calibrated sensitivity test method acceptable
to the Building official. Detectors found to have a sensitivity outside the listed and
marked sensitivity range shall be cleaned and recalibrated or replaced.
Exceptions:
1. Detectors listed as field adjustable shall be permitted to be either adjusted
within the listed and marked sensitivity range and cleaned and recalibrated or
they shall be replaced.
2. This requirement shall not apply to single-station smoke alarms.
Testing device. Detector sensitivity shall not be tested or measured using a device
that administers an unmeasured concentration of smoke or other aerosol into the
detector.
Maintenance, inspection and testing. The building owner shall be responsible
for ensuring that the fire and life safety systems are maintained in an operable
condition at all times. Service personnel shall meet the qualification requirements
of NFPA 72 for maintaining, inspecting and testing such systems. A written record
shall be maintained and shall be made available to the Building official.
SECTION 7.8
EMERGENCY ALARM SYSTEMS
7.8.1
Group H occupancies. Emergency alarms for the detection and notification of an
emergency condition in Group H occupancies shall be provided as required in
Chapter 25.
7.8.2
Group H-5 occupancy. Emergency alarms for notification of an emergency
condition in an HPM facility shall be provided as required in Section 16.3.12. A
continuous gas detection system shall be provided for HPM gases in accordance
SBC 801
2007
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FIRE PROTECTION SYSTEMS
with Section 16.3.13.
7.8.3
Highly toxic and toxic materials. Where required by Section 35.4.2.2.10, a as
detection system shall be provided for indoor storage and use of highly toxic and
toxic compressed gases.
7.8.4
Ozone gas-generator rooms. A gas detection system shall be provided in ozone
gas-generator rooms in accordance with Section 35.5.3.2.
7.8.5
Repair garages. A flammable-gas detection system shall be provided in repair
garages for vehicles fueled by non-odorized gases in accordance with Section
20.11.7.2.
7.8.6
Refrigeration systems. Refrigeration system machinery rooms shall be provided
with a refrigerant detector in accordance with Chapter 4 of the SBC 201.
SECTION 7.9
SMOKE CONTROL SYSTEMS
7.9.1
Scope and purpose. This section applies to mechanical or passive smoke control
systems when they are required for new buildings or portions thereof by provisions
of the SBC 201 or these code requirements. The purpose of this section is to
establish minimum requirements for the design, installation and acceptance testing
of smoke control systems that are intended to provide a tenable environment for
the evacuation or relocation of occupants. These provisions are not intended for
the preservation of contents, the timely restoration of operations, or for assistance
in fire suppression or overhaul activities. Smoke control systems regulated by this
section serve a different purpose than the smoke and heat-venting provisions found
in Section 7.10. Mechanical smoke control systems shall not be considered
exhaust systems under Chapter 5 of the SBC 501.
7.9.2
General design requirements. Buildings, structures, or parts thereof required by
the SBC 201 or these code requirements to have a smoke control system or
systems shall have such systems designed in accordance with the applicable
requirements of Section 7.9 and the generally accepted and well-established
principles of engineering relevant to the design. The construction documents shall
include sufficient information and detail to describe adequately the elements of the
design necessary for the proper implementation of the smoke control systems.
These documents shall be accompanied with sufficient information and analysis to
demonstrate compliance with these provisions.
7.9.3
Special inspection and test requirements. In addition to the ordinary inspection
and test requirements to which buildings, structures and parts thereof are required
to undergo, smoke control systems subject to the provisions of Section 7.9 shall
undergo special inspections and tests sufficient to verify the proper commissioning
of the smoke control design in its final installed condition. The design submission
accompanying the construction documents shall clearly detail procedures and
methods to be used and the items subject to such inspections and tests. Such
commissioning shall be in accordance with generally accepted engineering
practice and, where possible, based on published standards for the particular
testing involved. The special inspections and tests required by this section shall be
conducted under the same terms as in the SBC 100.
SBC 801
2007
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FIRE PROTECTION SYSTEMS
7.9.4
7.9.4.1
7.9.4.2
7.9.4.3
7.9.4.4
7.9.4.5
7.9.4.6
7.9.5
7.9.5.1
7.9.5.2
SBC 801
Analysis. A rational analysis supporting the types of smoke control systems to be
employed, the methods of their operations, the systems supporting them, and the
methods of construction to be utilized shall accompany the construction
documents submission and include, but not be limited to, the items indicated in
Sections 7.9.4.1 through 7.9.4.6.
Stack effect. The system shall be designed such that the maximum probable
normal or reverse stack effect will not adversely interfere with the system’s
capabilities. In determining the maximum probable stack effect, altitude, elevation,
weather history and interior temperatures shall be used.
Temperature effect of fire. Buoyancy and expansion caused by the design fire in
accordance with Section 7.9.9 shall be analyzed. The system shall be designed
such that these effects do not adversely interfere with the system’s capabilities.
Wind effect. The design shall consider the adverse effects of wind. Such
consideration shall be consistent with the wind-loading provisions of the SBC 301.
Systems. The design shall consider the effects of the heating, ventilating and airconditioning (HVAC) systems on both smoke and fire transport. The analysis shall
include all permutations of systems status. The design shall consider the effects of
the fire on the heating, ventilating and air-conditioning systems.
Climate. The design shall consider the effects of low temperatures on systems,
property and occupants. Air inlets and exhausts shall be located so as to prevent
snow or ice blockage.
Duration of operation. All portions of active or passive smoke control systems
shall be capable of continued operation after detection of the fire event for not less
than 20 minutes.
Smoke barrier construction. Smoke barriers shall comply with the SBC 201.
Smoke barriers shall be constructed and sealed to limit leakage areas exclusive of
protected openings. The maximum allowable leakage area shall be the aggregate
area calculated using the following leakage area ratios:
1. Walls: A/Aw = 0.001 00
2. Exit enclosures: A/Aw = 0.00035
3. All other shafts: A/Aw = 0.00150
4. Floors and roofs: A/AF = 0.00050
where:
2
A = Total leakage area, m .
AF = Unit floor or roof area of barrier, m2.
Aw = Unit wall area of barrier, m2.
The leakage area ratios shown do not include openings due to doors, operable
windows or similar gaps. These shall be included in calculating the total leakage
area.
Leakage area. Total leakage area of the barrier is the product of the smoke barrier
gross area monitored by the allowable leakage area ratio, plus the area of other
openings such as gaps and operable windows. Compliance shall be determined by
achieving the minimum air pressure difference across the barrier with the system
in the smoke control mode for mechanical smoke control systems. Passive smoke
control systems tested using other approved means such as door fan testing shall
be as approved by the Building official.
Opening protection. Openings in smoke barriers shall be protected by automaticclosing devices actuated by the required controls for the mechanical smoke control
system. Door openings shall be protected by door assemblies complying with the
2007
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FIRE PROTECTION SYSTEMS
7.9.5.2.1
7.9.6
7.9.6.1
7.9.6.2
requirements of the SBC 201 for doors in smoke barriers.
Exceptions:
1. Passive smoke control systems with automatic-closing devices actuated by
spot-type smoke detectors listed for releasing service installed in accordance
with Section 7.7.11.
2. Fixed openings between smoke zones which are protected utilizing the airflow
method.
3. In Group I-2, where such doors are installed across corridors, a pair of
opposite-swinging doors without a center mullion shall be installed having
vision panels with approved fire-rated glazing materials in approved fire-rated
frames, the area of which shall not exceed that tested. The doors shall be close
fitting within operational tolerances, and shall not have undercuts, louvers or
grilles. The doors shall have head and jamb stops, astragals or rabbets at
meeting edges, and automatic-closing devices. Positive-latching devices are
not required.
4. Group I-3.
5. Openings between smoke zones with clear ceiling heights of 4.3 m or greater
and bank-down capacity of greater than 20 minutes as determined by the
design fire size.
Ducts and air transfer openings. Ducts and air transfer openings are required to
be protected with a minimum Class II, 121°C smoke damper complying with the
SBC 201.
Pressurization method. The primary mechanical means of controlling smoke
shall be by pressure differences across smoke barriers. Maintenance of a tenable
environment is not required in the smoke-control zone of fire origin.
Minimum pressure difference. The minimum pressure difference across a smoke
barrier shall be 0.015 mm water gage in fully sprinklered buildings.
In buildings allowed to be other than fully sprinklered, the smoke control system
shall be designed to achieve pressure differences at least two times the maximum
calculated pressure difference produced by the design fire.
Maximum pressure difference. The maximum air pressure difference across a
smoke barrier shall be determined by required door-opening or closing forces. The
actual force required to open exit doors when the system is in the smoke control
mode shall be in accordance with Section 8.8.1.2. Opening and closing forces for
other doors shall be determined by standard engineering methods for the resolution
of forces and reactions. The calculated force to set a side-hinged, swinging door in
motion shall be determined by:
Where:
=
A
=
d
=
F
Fdc =
=
K
=
W
�P =
7.9.7
SBC 801
F = Fdc + K(WA �P )/2(W- d)
(Equation 7-1)
2
Door area, m .
Distance from door handle to latch edge of door, m.
Total door opening force, N.
Force required to overcome closing device, N.
Coefficient 1.0.
Door width, m.
Design pressure difference, Pa.
Airflow design method When approved by the Building official, smoke migration
through openings fixed in a permanently open position, which are located between
smoke-control zones by the use of the airflow method, shall be permitted. The
2007
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FIRE PROTECTION SYSTEMS
7.9.7.1
design airflow shall be in accordance with this section. Airflow shall be directed to
limit smoke migration from the fire zone. The geometry of openings shall be
considered to prevent flow reversal from turbulent effects.
Velocity. The minimum average velocity through a fixed opening shall not be less
than:
1/2
Where:
=
h
=
Tf
To =
=
v
v = 119.9 [h (Tf - To)/Tf]
(Equation 7-2)
Height of opening, m.
Temperature of smoke, °K.
Temperature of ambient air, °K.
Air velocity, m/minute.
7.9.7.2
Prohibited conditions. This method shall not be employed where either the
quantity of air or the velocity of the airflow will adversely affect other portions of
the smoke control system, unduly intensify the fire, disrupt plume dynamics or
interfere with exiting. In no case shall airflow toward the fire exceed 1.02 m/s.
Where the formula in Section 7.9.7.1 requires airflows to exceed this limit, the
airflow method shall not be used.
7.9.8
Exhaust method. When approved by the Building official, mechanical smoke
control for large enclosed volumes, such as in atriums or malls, shall be permitted
to utilize the exhaust method. The design exhaust volumes shall be in accordance
with this section.
Exhaust rate. The height of the lowest horizontal surface of the accumulating
smoke layer shall be maintained at least 3.0 m above any walking surface which
forms a portion of a required egress system within the smoke zone. The required
exhaust rate for the zone shall be the largest of the calculated plume mass flow
rates for the possible plume configurations. Provisions shall be made for natural or
mechanical supply of air from outside or adjacent smoke zones to make up for the
air exhausted. Makeup airflow rates, when measured at the potential fire location,
shall not exceed 1.02 m/s toward the fire. The temperature of the makeup air shall
be such that it does not expose temperature-sensitive fire protection systems
beyond their limits.
Axisymmetric plumes. The plume mass flow rate (mp), in kg/s, shall be
determined by placing the design fire center on the axis of the space being
analyzed. The limiting flame height shall be determined by:
7.9.8.1
7.9.8.2
(Equation 7-3)
2/5
zl = 0.166Qc
Where:
mp = Plume mass flow rate, kg/s.
= Total heat output.
Q
Qc = Convective heat output, kW. (The value of Qc shall not be taken as less
than 0.70 Q.)
= Height from top of fuel surface to bottom of smoke layer, m.
z
= Limiting flame height, m. The zl value must be greater than the fuel
zl
equivalent diameter (see Section 7.9.9).
for z > zl
mp = = 0.071 Qc1/3 z5/3 + 0.0018Qc
for z > zl
mp = 0.035Qc
SBC 801
2007
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FIRE PROTECTION SYSTEMS
for z > zl
mp = 0.032Qc3/5 z
To convert mp from pounds per second of mass flow to a volumetric rate, the
following formula shall be used:
(Equation 7-4)
V = 60 mp/ �
Where:
= Volumetric flow rate, m3/s.
V
�
= Density of air at the temperature of the smoke layer, [kg/m3 (T: in °C)].
7.9.8.3
Balcony spill plumes. The plume mass flow rate (mp) for spill plumes shall be
determined using the geometrically probable width based on architectural elements
and projections in the following equation:
2 1/3
(Equation 7-5)
mp= 0.36(QW ) (zb + 0.25H)
Where:
=
H
mp =
=
Q
W =
=
zb
7.9.8.4
Window plumes. The plume mass flow rate (mp) shall be determined from:
Where:
Aw =
Hw =
mp =
zw =
a
7.9.8.5
SBC 801
mp = 0.68(AwHw
1/2 1/3
) (zw+a)
5/3
+ 1.5 AwHw
1/2
(Equation 7-6)
Area of the opening, square m2.
Height of the opening, m.
Plume mass flow rate, kg/s.
Height from the top of the window or opening to the bottom of the
smoke layer, m.
= 2.4Aw2/5 Hw1/5 - 2.1Hw
Plume contact with walls. When a plume contacts one or more of the surrounding
walls, the mass flow rate shall be adjusted for the reduced entrainment resulting
from the contact provided that the contact remains constant. Use of this provision
requires calculation of the plume diameter, that shall be calculated by:
Where:
=
d
Ta =
Tc =
=
z
Tc =
7.9.9
Height above fire to underside of balcony, m.
Plume mass flow rate, kg/s.
Total heat output.
Plume width at point of spill, m.
Height from balcony, m.
d = 0.48 (Tc/Ta)
1/2
z
(Equation 7-7)
Plume diameter, m.
Ambient air temperature, °K.
Plume centerline temperature, °K.
Height at which Tc is determined, m.
2/3 -5/3
0.08 TaQc z + Ta
Design fire. The design fire shall be based on a Q of not less than 5,275 kW unless
a rational analysis is performed by the registered design professional and approved
by the Building official. The design fire shall be based on the analysis in
accordance with Section 7.9.4 and this section.
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FIRE PROTECTION SYSTEMS
7.9.9.1
7.9.9.2
Factors considered. The engineering analysis shall include the characteristics of
the fuel, fuel load, effects included by the fire, and whether the fire is likely to be
steady or unsteady.
Separation distance. Determination of the design fire shall include consideration
of the type of fuel, fuel spacing and configuration. The ratio of the separation
distance to the fuel equivalent radius shall not be less than 4. The fuel equivalent
radius shall be the radius of a circle of equal area to floor area of the fuel package.
The design fire shall be increased if other combustibles are within the separation
distance as determined by:
(Equation 7-8)
Where:
q" = Incident radiant heat flux required for nonpiloted ignition, W/m2.
= Heat release from fire, kW.
Q
= Separation distance from target to center of fuel package, m.
R
1/2
R = [Q/(12 � q")]
7.9.9.3
7.9.9.4
7.9.10
7.9.10.1
Heat-release assumptions. The analysis shall make use of best available data
from approved sources and shall not be based on excessively stringent limitations
of combustible material.
Sprinkler effectiveness assumptions. A documented engineering analysis shall
be provided for conditions that assume fire growth is halted at the time of sprinkler
activation.
Equipment. Equipment such as, but not limited to, fans, ducts, automatic dampers
and balance dampers, shall be suitable for their intended use, suitable for the
probable exposure temperatures that the rational analysis indicates, and as
approved by the Building official.
Exhaust fans. Components of exhaust fans shall be rated and certified by the
manufacturer for the probable temperature rise to which the components will be
exposed. This temperature rise shall be computed by:
Ts = (Qc/mc) + (Ta)
7.9.10.2
7.9.10.3
SBC 801
(Equation 7-9)
Where:
= Specific heat of smoke at smokelayer temperature, kJ/kg . °K.
c
= Exhaust rate, kg/s.
m
Qc = Convective heat output of fire, kW.
Ta = Ambient temperature, °K.
Ts = Smoke temperature, °K.
Exception: Reduced Ts as calculated based on the assurance of adequate dilution
air.
Ducts. Duct materials and joints shall be capable of withstanding the probable
temperatures and pressures to which they are exposed as determined in accordance
with Section 7.9.10.1. Ducts shall be constructed and supported in accordance with
the SBC 501. Ducts shall be leak tested to 1.5 times the maximum design pressure
in accordance with nationally accepted practices. Measured leakage shall not
exceed 5 percent of design flow. Results of such testing shall be a part of the
documentation procedure. Ducts shall be supported directly from fire-resistancerated structural elements of the building by substantial, noncombustible supports.
Exception: Flexible connections (for the purpose of vibration isolation)
complying with the SBC 501 and which are constructed of approved fireresistance-rated materials.
Equipment, inlets and outlets. Equipment shall be located so as to not expose
uninvolved portions of the building to an additional fire hazard. Outside air inlets
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FIRE PROTECTION SYSTEMS
7.9.10.4
7.9.10.5
7.9.11
7.9.11.1
7.9.12
7.9.12.1
7.9.12.2
7.9.12.2.1
SBC 801
shall be located so as to minimize the potential for introducing smoke or flame into
the building. Exhaust outlets shall be so located as to minimize reintroduction of
smoke into the building and to limit exposure of the building or adjacent buildings
to an additional fire hazard.
Automatic dampers. Automatic dampers, regardless of the purpose for which
they are installed within the smoke control system, shall be listed and conform to
the requirements of approved recognized standards.
Fans. In addition to other requirements, belt-driven fans shall have 1.5 times the
number of belts required for the design duty with the minimum number of belts
being two. Fans shall be selected for stable performance based on normal
temperature and, where applicable, elevated temperature. Calculations and
manufacturer’s fan curves shall be part of the documentation procedures. Fans
shall be supported and restrained by noncombustible devices in accordance with
the structural design requirements of the SBC 301. Motors driving fans shall not
be operated beyond their nameplate horsepower (kilowatts) as determined from
measurement of actual current draw and shall have a minimum service factor of
1.15.
Power systems. The smoke control system shall be supplied with two sources of
power. Primary power shall be the normal building power systems. Secondary
power shall be from an approved standby source complying with the SBC 401.
The standby power source and its transfer switches shall be in a separate room
from the normal power transformers and switch gear and shall be enclosed in a
room constructed of not less than 1 hour fire-resistance-rated fire barriers,
ventilated directly to and from the exterior. Power distribution from the two
sources shall be by independent routes. Transfer to full standby power shall be
automatic and within 60 seconds of failure of the primary power. The systems
shall comply with the SBC 401.
Power sources and power surges. Elements of the smoke management system
relying on volatile memories or the like shall be supplied with uninterruptable
power sources of sufficient duration to span 15-minute primary power
interruption. Elements of the smoke management system susceptible to power
surges shall be suitably protected by conditioners, suppressors or other approved
means.
Detection and control systems. Fire detection systems providing control input or
output signals to mechanical smoke control systems or elements thereof shall
comply with the requirements of Section 7.7. Such systems shall be equipped with
a control unit complying with UL 864 and listed as smoke control equipment.
Control systems for mechanical smoke control systems shall include provisions for
verification. Verification shall include positive confirmation of actuation, testing,
manual override, the presence of power downstream of all disconnects and,
through a preprogrammed weekly test sequence report, abnormal conditions
audibly, visually and by printed report.
Wiring. In addition to meeting requirements of the SBC 401, all wiring, regardless
of voltage, shall be fully enclosed within continuous raceways.
Activation. Smoke control systems shall be activated in accordance with this
section.
Pressurization, airflow or exhaust method. Mechanical smoke control systems
using the pressurization, airflow or exhaust method shall have completely
automatic control.
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FIRE PROTECTION SYSTEMS
7.9.12.2.2
7.9.12.3
7.9.13
7.9.13.1
7.9.13.2
7.9.13.3
Passive method. Passive smoke control systems actuated by approved spot-type
detectors listed for releasing service shall be permitted.
Automatic control. Where completely automatic control is required or used, the
automatic-control sequences shall be initiated from an appropriately zoned
automatic sprinkler system complying with Section 7.3.3.1.1, manual controls that
are readily accessible to the Civil Defence, and any smoke detectors required by
the engineering analysis.
Control air tubing. Control air tubing shall be of sufficient size to meet the
required response times. Tubing shall be flushed clean and dry prior to final
connections and shall be adequately supported and protected from damage. Tubing
passing through concrete or masonry shall be sleeved and protected from abrasion
and electrolytic action.
Materials. Control air tubing shall be hard drawn copper, Type L, ACR in
accordance with ASTM B 42, ASTM B 43, ASTM B 68, ASTM B 88, ASTM B
251 and ASTM B 280. Fittings shall be wrought copper or brass, solder type, in
accordance with ASME B 16.18 or ASME B 16.22. Changes in direction shall be
made with appropriate tool bends. Brass compression-type fittings shall be used at
final connection to devices; other joints shall be brazed using a BCuP5 brazing
alloy with solidus above 593°C and liquids below 816°C. Brazing flux shall be
used on copper-to-brass joints only.
Exception: Nonmetallic tubing used within control panels and at the final
connection to devices, provided all of the following conditions are met:
1. Tubing shall be listed by an approved agency for flame and smoke
characteristics.
2. Tubing and the connected device shall be completely enclosed within a
galvanized or paint-grade steel enclosure of not less than 0.76 mm (No. 22
galvanized sheet gage) thickness. Entry to the enclosure shall be by copper
tubing with a protective grommet of neoprene or teflon or by suitable brass
compression to male-barbed adapter.
3. Tubing shall be identified by appropriately documented coding.
4. Tubing shall be neatly tied and supported within enclosure. Tubing bridging
cabinet and door or moveable device shall be of sufficient length to avoid
tension and excessive stress. Tubing shall be protected against abrasion.
Tubing serving devices on doors shall be fastened along hinges.
Isolation from other functions. Control tubing serving other than smoke control
functions shall be isolated by automatic isolation valves or shall be an independent
system.
Testing. Control air tubing shall be tested at three times the operating pressure for
not less than 30 minutes without any noticeable loss in gauge pressure prior to
final connection to devices.
7.9.14
Marking and identification. The detection and control systems shall be clearly
marked at all junctions, accesses and terminations.
7.9.15
Control diagrams. Identical control diagrams showing all devices in the system
and identifying their location and function shall be maintained current and kept on
file with the Building official, the Civil Defence and in the fire command center in
format and manner approved by the Building official.
7.9.16
Fire-fighter’s smoke control panel. A fire-fighter’s smoke control panel for Civil
Defence emergency response purposes only shall be provided and shall include
SBC 801
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FIRE PROTECTION SYSTEMS
7.9.16.1
7.9.16.2
7.9.16.3
SBC 801
manual control or override of automatic control for mechanical smoke control
systems. The panel shall be located in a fire command center complying with
Section 5C.9 and shall comply with Sections 7.9.16.1 through 7.9.16.3.
Smoke control systems. Fans within the building shall be shown on the firefighter’s control panel. A clear indication of the direction of airflow and the
relationship of components shall be displayed. Status indicators shall be provided
for all smoke control equipment, annunciated by fan and zone and by pilot-lamptype indicators as follows:
1. Fans, dampers and other operating equipment in their normal status – WHITE.
2. Fans, dampers and other operating equipment in their off or closed status –
RED.
3. Fans, dampers and other operating equipment in their on or open status –
GREEN.
4. Fans, dampers and other operating equipment in a fault status –
YELLOW/AMBER.
Smoke control panel. The fire-fighter’s control panel shall provide control
capability over the complete smoke-control system equipment within the building
as follows:
1. ON-AUTO-OFF control over each individual piece of operating smoke control
equipment that can also be controlled from other sources within the building.
This includes stairway pressurization fans; smoke exhaust fans; supply, return
and exhaust fans; elevator shaft fans; and other operating equipment used or
intended for smoke control purposes.
2. OPEN-AUTO-CLOSE control over individual dampers relating to smoke
control and that are also controlled from other sources within the building.
3. ON-OFF or OPEN-CLOSE control over smoke control and other critical
equipment associated with a fire or smoke emergency and that can only be
controlled from the fire-fighter’s control panel.
Exceptions:
1. Complex systems, where approved, where the controls and indicators are
combined to control and indicate all elements of a single smoke zone as a
unit.
2. Complex systems, where approved, where the control is accomplished by
computer interface using approved, plain English commands.
Control action and priorities. The fire-fighter’s control panel actions shall be as
follows:
1. ON-OFF, OPEN-CLOSE control actions shall have the highest priority of any
control point within the building. Once issued from the fire-fighter’s control
panel, no automatic or manual control from any other control point within the
building shall contradict the control action. Where automatic means are
provided to interrupt normal, nonemergency equipment operation or produce a
specific result to safeguard the building or equipment (i.e., duct freezestats,
duct smoke detectors, high-temperature cutouts, temperature-actuated linkage
and similar devices), such means shall be capable of being overridden by the
fire-fighter’s control panel. The last control action as indicated by each firefighter’s control panel switch position shall prevail. In no case shall control
actions require the smoke control system to assume more than one
configuration at any one time.
Exception: Power disconnects required by the SBC 401.
2. Only the AUTO position of each three-position fire-fighter’s control panel
switch shall allow automatic or manual control action from other control points
within the building. The AUTO position shall be the NORMAL,
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FIRE PROTECTION SYSTEMS
nonemergency, building control position. Where a fire-fighter’s control panel
is in the AUTO position, the actual status of the device (on, off, open, closed)
shall continue to be indicated by the status indicator described above. When
directed by an automatic signal to assume an emergency condition, the
NORMAL position shall become the emergency condition for that device or
group of devices within the zone. In no case shall control actions require the
smoke control system to assume more than one configuration at any one time.
7.9.17
System response time. Smoke-control system activation shall be initiated
immediately after receipt of an appropriate automatic or manual activation
command. Smoke control systems shall activate individual components (such as
dampers and fans) in the sequence necessary to prevent physical damage to the
fans, dampers, ducts and other equipment. For purposes of smoke control, the firefighter’s control panel response time shall be the same for automatic or manual
smoke control action initiated from any other building control point. The total
response time, including that necessary for detection, shutdown of operating
equipment and smoke control system startup, shall allow for full operational mode
to be achieved before the conditions in the space exceed the design smoke
condition. The system response time for each component and their sequential
relationships shall be detailed in the required rational analysis and verification of
their installed condition reported in the required final report.
7.9.18
Acceptance testing. Devices, equipment, components and sequences shall be
individually tested. These tests, in addition to those required by other provisions of
these code requirements, shall consist of determination of function, sequence and,
where applicable, capacity of their installed condition.
Detection devices. Smoke or fire detectors that are a part of a smoke control
system shall be tested in accordance with Chapter 7 in their installed condition.
When applicable, this testing shall include verification of airflow in both minimum
and maximum conditions.
Ducts. Ducts that are part of a smoke control system shall be traversed using
generally accepted practices to determine actual air quantities.
Dampers. Dampers shall be tested for function in their installed condition.
Inlets and outlets. Inlets and outlets shall be read using generally accepted
practices to determine air quantities.
Fans. Fans shall be examined for correct rotation. Measurements of voltage,
amperage, revolutions per minute and belt tension shall be made.
Smoke barriers. Measurements using inclined manometers or other approved
calibrated measuring devices shall be made of the pressure differences across
smoke barriers. Such measurements shall be conducted for each possible smoke
control condition.
Controls. Each smoke zone, equipped with an automatic-initiation device, shall be
put into operation by the actuation of one such device. Each additional device
within the zone shall be verified to cause the same sequence without requiring the
operation of fan motors in order to prevent damage. Control sequences shall be
verified throughout the system, including verification of override from the firefighter’s control panel and simulation of standby power conditions.
Special inspections for smoke control. Smoke control systems shall be tested by
a special inspector.
Scope of testing. Special inspections shall be conducted in accordance with the
following:
7.9.18.1
7.9.18.2
7.9.18.3
7.9.18.4
7.9.18.5
7.9.18.6
7.9.18.7
7.9.18.8
7.9.18.8.1
SBC 801
2007
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FIRE PROTECTION SYSTEMS
1. During erection of ductwork and prior to concealment for the purposes of
leakage testing and recording of device location.
2. Prior to occupancy and after sufficient completion for the purposes of
pressure-difference testing, flow measurements, and detection and control
verification.
7.9.18.8.2 Qualifications. Special inspection agencies for smoke control shall have expertise
in fire protection engineering, mechanical engineering and certification as air
balancers.
7.9.18.8.3 Reports. A complete report of testing shall be prepared by the special inspector or
special inspection agency. The report shall include identification of all devices by
manufacturer, nameplate data, design values, measured values and identification
tag or mark. The report shall be reviewed by the responsible registered design
professional and, when satisfied that the design intent has been achieved, the
responsible registered design professional shall seal, sign and date the report.
7.9.18.8.3.1 Report filing. A copy of the final report shall be filed with the Building official
and an identical copy shall be maintained in an approved location at the building.
7.9.18.9
Identification and documentation. Charts, drawings and other documents
identifying and locating each component of the smoke control system, and
describing their proper function and maintenance requirements, shall be
maintained on file at the building as an attachment to the report required by
Section 7.9.18.8.3. Devices shall have an approved identifying tag or mark on
them consistent with the other required documentation and shall be dated
indicating the last time they were successfully tested and by whom.
7.9.19
System acceptance. Buildings, or portions thereof, required by these code
requirements to comply with this section shall not be issued a certificate of
occupancy until such time that the Building official determines that the provisions
of this section have been fully complied with, and that the Civil Defence has
received satisfactory instruction on the operation, both automatic and manual, of
the system.
Exception: In buildings of phased construction, a temporary certificate of
occupancy, as approved by the Building official, shall be permitted provided that
those portions of the building to be occupied meet the requirements of this section
and that the remainder does not pose a significant hazard to the safety of the
proposed occupants or adjacent buildings.
7.9.20
Smokeproof enclosures. Where required by Section 8.19.1.8 of the SBC 201, a
smokeproof enclosure shall be constructed in accordance with this section. A
smokeproof enclosure shall consist of an enclosed interior exit stairway that
conforms to Section 8.19.1 of the SBC 201, and an outside balcony or ventilated
vestibule meeting the requirements of this section. Where access to the roof is
required by these code requirements, such access shall be from the smokeproof
enclosure where a smokeproof enclosure is required.
Access. Access to the stair shall be byway of a vestibule or an open exterior
balcony. The minimum dimension of the vestibule shall not be less than the
required width of the corridor leading to the vestibule but shall not have a width of
less than 1.1 m and shall not have a length of less than 1.8 m in the direction of
egress travel.
Construction. The smokeproof enclosure shall be separated from the remainder of
the building by not less than a 2 hours fire-resistance-rated fire barrier without
openings other than the required means of egress doors. The vestibule shall be
separated from the stairway by not less than a 2 hours fire-resistance-rated fire
7.9.20.1
7.9.20.2
SBC 801
2007
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FIRE PROTECTION SYSTEMS
barrier. The open exterior balcony shall be constructed in accordance with the fireresistance-rating requirements for floor construction.
7.9.20.2.1 Door closers. Doors in a smokeproof enclosure shall be self-closing or shall be
automatic-closing by actuation of a smoke detector installed at the floor-side
entrance to the smokeproof enclosure in accordance with Section 4B.16.4.7. The
actuation of the smoke detector on any door shall activate the closing devices on
all doors in the smokeproof enclosure at all levels. Smoke detectors shall be
installed in accordance with Section 7.7.11.
7.9.20.3
Natural ventilation alternative. The provisions of Sections 7.9.20.3.1 through
7.9.20.3.3 shall apply to ventilation of smokeproof enclosures by natural means.
7.9.20.3.1 Balcony doors. Where access to the stairway is by way of an open exterior
balcony, the door assembly into the enclosure shall be a fire door in accordance
with Section 4B.16.4.
7.9.20.3.2 Vestibule doors. Where access to the stairway is by way of a vestibule, the door
assembly into the vestibule shall be a fire door complying with Section 4B.16.4.
The door assembly from the vestibule to the stairway shall have not less than a 20
minutes fire protection rating complying with Section 4B.16.4.
2
7.9.20.3.3 Vestibule ventilation. Each vestibule shall have a minimum net area of 1.5 m of
opening in a wall facing an outer court, yard or public way that is at least 6.1 m in
width.
7.9.20.4
Mechanical ventilation alternative. The provisions of Sections 7.9.20.4.1
through 7.9.20.4.4 shall apply to ventilation of smokeproof enclosures by
mechanical means.
7.9.20.4.1 Vestibule doors. The door assembly from the building into the vestibule shall be a
fire door complying with Section 4B.16.4. The door assembly from the vestibule
to the stairway shall have not less than a 20 minutes fire protection rating in
accordance with Section 4B.16.4. The door from the building into the vestibule
shall be provided with gaskets or other provisions to minimize air leakage.
7.9.20.4.2 Vestibule ventilation. The vestibule shall be supplied with not less than one air
change per minute and the exhaust shall not be less than 150 percent of supply.
Supply air shall enter and exhaust air shall discharge from the vestibule through
separate, tightly constructed ducts used only for that purpose. Supply air shall
enter the vestibule within 150 mm of the floor level. The top of the exhaust
register shall be located at the top of the smoke trap but not more than 150 mm
down from the top of the trap, and shall be entirely within the smoke trap area.
Doors in the open position shall not obstruct duct openings. Duct openings with
controlling dampers are permitted where necessary to meet the design
requirements, but dampers are not otherwise required.
7.9.20.4.2.1 Engineered ventilation system. Where a specially engineered system is used, the
system shall exhaust a quantity of air equal to not less than 90 air changes per hour
from any vestibule in the emergency operation mode and shall be sized to handle
three vestibules simultaneously. Smoke detectors shall be located at the floor-side
entrance to each vestibule and shall activate the system for the affected vestibule.
Smoke detectors shall be installed in accordance with Section 7.7.11.
7.9.20.4.3 Smoke trap. The vestibule ceiling shall be at least 0.50 m higher than the door
opening into the vestibule to serve as a smoke and heat trap and to provide an
upward-moving air column. The height shall not be decreased unless approved and
justified by design and test.
909.20.4.4 Stair shaft air movement system. The stair shaft shall be provided with a
dampered relief opening and supplied with sufficient air to maintain a minimum
positive pressure of 25 Pa in the shaft relative to the vestibule with all doors
closed.
SBC 801
2007
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FIRE PROTECTION SYSTEMS
7.9.20.5
7.9.20.6
7.9.20.6.1
7.9.20.6.2
7.9.20.6.3
7.9.21
7.9.21.1
7.9.21.2
7.9.21.3
7.9.22
SBC 801
Stair pressurization alternative. Where the building is equipped throughout with
an automatic sprinkler system in accordance with Section 7.3.3.1.1, the vestibule is
not required, provided that interior exit stairways are pressurized to a minimum of
37 Pa and a maximum of 87 Pa in the shaft relative to the building measured with
all stairway doors closed under maximum anticipated stack pressures.
Ventilating equipment. The activation of ventilating equipment required by the
alternatives in Sections 7.9.20.4 and 7.9.20.5 shall be by smoke detectors installed
at each floor level at an approved location at the entrance to the smokeproof
enclosure. When the closing device for the stair shaft and vestibule doors is
activated by smoke detection or power failure, the mechanical equipment shall
activate and operate at the required performance levels. Smoke detectors shall be
installed in accordance with Section 7.7.11.
Ventilation systems. Smokeproof enclosure ventilation systems shall be
independent of other building ventilation systems. The equipment and ductwork
shall comply with one of the following:
1. Equipment and ductwork shall be located exterior to the building and directly
connected to the smokeproof enclosure or connected to the smokeproof
enclosure by ductwork enclosed by 2 hours fire-resistance-rated fire barriers.
2. Equipment and ductwork shall be located within the smokeproof enclosure
with intake or exhaust directly from and to the outside or through ductwork
enclosed by 2 hours fire-resistance-rated fire barriers.
3. Equipment and ductwork shall be located within the building if separated from
the remainder of the building, including other mechanical equipment, by 2
hours fire-resistance-rated fire barriers.
Standby power. Mechanical vestibule and stair shaft ventilation systems and
automatic fire detection systems shall be powered by an approved standby power
system conforming to Section 2.16.10.1 of the SBC 201 and SBC 501.
Acceptance and testing. Before the mechanical equipment is approved, the
system shall be tested in the presence of the building official to confirm that the
system is operating in compliance with these requirements.
Underground building smoke exhaust system. Where required by the SBC 201
for underground buildings, a smoke exhaust system shall be provided in
accordance with this section.
Exhaust capability. Where compartmentation is required, each compartment shall
have an independent, automatically activated smoke exhaust system capable of
manual operation. The system shall have an air supply and smoke exhaust
capability that will provide a minimum of six air changes per hour.
Operation. The smoke exhaust system shall be operated in the compartment of
origin by the following, independently of each other:
1. Two cross-zoned smoke detectors within a single protected area or a single
smoke detector monitored by an alarm verification zone or an approved
equivalent method.
2. The automatic sprinkler system.
3. Manual controls that are readily accessible to the Civil Defence.
Alarm required. Activation of the smoke exhaust system shall activate an audible
alarm at a constantly attended location.
Maintenance. Smoke control systems shall be maintained to ensure to a
reasonable degree that the system is capable of controlling smoke for the duration
required. The system shall be maintained in accordance with the manufacturer’s
instructions and Sections 7.9.22.1 through 7.9.22.5.
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FIRE PROTECTION SYSTEMS
7.9.22.1
7.9.22.2
7.9.22.3
7.9.22.4
7.9.22.5
Schedule. A routine maintenance and operational testing program shall be
initiated immediately after the smoke control system has passed the acceptance
tests. A written schedule for routine maintenance and operational testing shall be
established.
Written record. A written record of smoke control system testing and
maintenance shall be maintained on the premises. The written record shall include
the date of the maintenance, identification of the servicing personnel and
notification of any unsatisfactory condition and the corrective action taken,
including parts replaced.
Testing. Operational testing of the smoke control system shall include all
equipment such as initiating devices, fans, dampers, controls, doors and windows.
Dedicated smoke control systems. Dedicated smoke control systems shall be
operated for each control sequence semi-annually. The system shall also be tested
under standby power conditions.
Nondedicated smoke control systems. Nondedicated smoke control systems shall
be operated for each control sequence annually. The system shall also be tested
under standby power conditions.
SECTION 7.10
SMOKE AND HEAT VENTS
7.10.1
General. Where required by these code requirements or otherwise installed,
smoke and heat vents, or mechanical smoke exhaust systems, and draft curtains
shall conform to the requirements of this section.
Exception: Frozen food warehouses used solely for storage of Class I and Class II
commodities where protected by an approved automatic sprinkler system.
7.10.2
Where required. Approved smoke and heat vents shall be installed in the roofs of
one-story buildings or portions thereof occupied for the uses set forth in Sections
7.10.2.1 through 7.10.2.4.
Groups F-1 and S1. Buildings and portions thereof used as a Group F-1 or S-1
occupancy having more than 4,645 m2 of undivided area.
Exception: Group S-1 aircraft repair hangars.
Group H. Buildings and portions thereof used as a Group H occupancy as
follows:
1. In occupancies classified as Group H-2 or H-3, any of which are more than
1,394 m2 in single floor area.
Exception: Buildings of noncombustible construction containing only
noncombustible materials.
2. In areas of buildings in Group H used for storing Class 2, 3 and 4 liquid and
solid oxidizers, Class 1 and unclassified detonable organic peroxides, Class 3
and 4 unstable (reactive) materials, or Class 2 or 3 water-reactive materials as
required for a high-hazard commodity classification.
Exception: Buildings of noncombustible construction containing only
noncombustible materials.
High-piled combustible storage. Buildings and portions thereof containing highpiled combustible stock or rack storage in any occupancy group when required by
Section 21.6.7.
Exit access travel distance increase. Buildings and portions thereof used as a
Group F-1 or S-1 occupancy where the maximum exit access travel distance is
increased with Section 8.15.2.
7.10.2.1
7.10.2.2
7.10.2.3
7.10.2.4
SBC 801
2007
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FIRE PROTECTION SYSTEMS
7.10.3
7.10.3.1
7.10.3.1.1
7.10.3.1.2
7.10.3.1.3
7.10.3.2
Design and installation. The design and installation of smoke and heat vents and
draft curtains shall be as specified in this section and Table 7.10.3.
Vent operation. Smoke and heat vents shall be approved and labeled and shall be
capable of being operated by approved automatic and manual means. Automatic
operation of smoke and heat vents shall conform to the provisions of this section.
Gravity-operated drop out vents. Automatic smoke and heat vents containing
heat-sensitive glazing designed to shrink and drop out of the vent opening when
exposed to fire shall fully open within 5 minutes after the vent cavity is exposed to
a simulated fire represented by a time-temperature gradient that reaches an air
temperature of 260°C within 5 minutes.
Sprinklered buildings. Where installed in buildings equipped with an approved
automatic sprinkler system, smoke and heat vents shall be designed to operate
automatically.
Nonsprinklered buildings. Where installed in buildings not equipped with an
approved automatic sprinkler system, smoke and heat vents shall operate
automatically by actuation of a heat-responsive device rated at between 38°C and
104°C above ambient.
Exception: Gravity-operated drop out vents complying with Section 7.10.3.1.1.
Vent dimensions. The effective venting area shall not be less than 1.5 m2 with no
dimension less than 1.2 m, excluding ribs or gutters having a total width not
exceeding 150 mm.
TABLE 7.10.3
REQUIREMENTS FOR DRAFT CURTAINS AND SMOKE AND HEAT VENTSa
MINIMUM
DRAFT
CURTAIN
DEPTH
(m)
MAXIMUM
AREA
FORMED
BY DRAFT
CURTAINS
(m2)
VENT
AREA
TO
FLOOR
AREA
RATIO
MAXIMUM
SPACING
OF VENT
CENTERS
(m)
MAXIMUM
DISTANCE TO
VENTS FROM
WALL OR
DRAFT
CURTAINb
(m)
4,645
1:100
36.6
18.3
OCCUPANCY
GROUP AND
COMMODITY
CLASSIFICATION
DESIGNATED
STORAGE
HEIGHT
(m)
Group F-1
—
Group S-1
I-IV
(Option 1)
� 6.1
1.8
929
1:100
30.5
18.3
>6.1 � 12.2
1.8
743
1:75
30.5
16.8
� 6.1
1.2
278.7
1:75
30.5
16.8
>6.1 � 12.2
1.2
278.7
1:50
30.5
16.8
� 6.1
1.8
557
1:50
30.5
16.8
>6.1 � 9.1
1.8
557
1:40
27.4
13.7
� 6.1
1.2
371.6
1:50
30.5
16.8
>6.1 � 9.1
1.2
185.8
1:30
22.9
12.2
Group S-1
I-IV
(Option 2)
Group S-1
High hazard
(Option 1)
Group S-1
High hazard
(Option 2)
a.
b.
0.1 x H
but � 1.2
Requirements for rack storage heights in excess of those indicated shall be in accordance with Chapter 21. For solid-piled storage
heights in excess of those indicated, an approved engineered design shall be used.
The distance specified is the maximum distance from any vent in a particular draft curtained area to walls or draft curtains which form
the perimeter of the draft curtained area.
7.10.3.3
SBC 801
Vent locations. Smoke and heat vents shall be located 6.1 m or more from
adjacent lot lines and fire walls and 3 m or more from fire barrier walls. Vents
shall be uniformly located within the roof area above high-piled storage areas,
with consideration given to roof pitch, draft curtain location, sprinkler location and
structural members.
2007
7/56
FIRE PROTECTION SYSTEMS
7.10.3.4
7.10.3.4.1
7.10.3.4.2
7.10.4
7.10.4.1
7.10.4.2
Draft curtains. Where required, draft curtains shall be provided in accordance
with this section.
Exception: Where areas of buildings are equipped with early suppression fastresponse (ESFR) sprinklers, draft curtains shall not be provided within these areas.
Draft curtains shall only be provided at the separation between the ESFR
sprinklers and the conventional sprinklers.
Construction. Draft curtains shall be constructed of sheet metal, lath and plaster,
gypsum board or other approved materials that provide equivalent performance to
resist the passage of smoke. Joints and connections shall be smoke tight.
Location and depth. The location and minimum depth of draft curtains shall be in
accordance with Table 7.10.3.
Mechanical smoke exhaust. Where approved by the Building official, engineered
mechanical smoke exhaust shall be an acceptable alternative to smoke and heat
vents.
Location. Exhaust fans shall be uniformly spaced within each draft-curtained area
and the maximum distance between fans shall not be greater than 30.5 m.
Size. Fans shall have a maximum individual capacity of 14.2 m³/s. The aggregate
capacity of smoke exhaust fans shall be determined by the equation:
(Equation 7-10)
C = A × 300
7.10.4.3
7.10.4.4
7.10.4.5
7.10.4.6
where:
3
C = Capacity of mechanical ventilation required, in m /s.
A = Area of roof vents provided in m2 in accordance with Table 7.10.3.
Operation. Mechanical smoke exhaust fans shall be automatically activated by the
automatic sprinkler system or by heat detectors having operating characteristics
equivalent to those described in Section 7.10.3.1. Individual manual controls of
each fan unit shall also be provided.
Wiring and control. Wiring for operation and control of smoke exhaust fans shall
be connected ahead of the main disconnect and protected against exposure to
temperatures in excess of 538°C for a period of not less than 15 minutes. Controls
shall be located so as to be immediately accessible to the fire service from the
exterior of the building and protected against interior fire exposure by fire barriers
having a fire-resistance rating not less than 1 hour.
Supply air. Supply air for exhaust fans shall be provided at or near the floor level
and shall be sized to provide a minimum of 50 percent of required exhaust.
Openings for supply air shall be uniformly distributed around the periphery of the
area served.
Interlocks. On combination comfort air-handling/smoke removal systems or
independent comfort air-handling systems, fans shall be controlled to shut down in
accordance with the approved smoke control sequence.
SECTION 7.11
EXPLOSION CONTROL
7.11.1
SBC 801
General. Explosion control shall be provided in the following locations:
1. Where a structure, room or space is occupied for purposes involving explosion
hazards as identified in Table 7.11.1.
2. Where quantities of hazardous materials specified in Table 7.11.1 exceed the
maximum allowable quantities in Table 25.3.1.1(1).
Such areas shall be provided with explosion (deflagration) venting, explosion
(deflagration) prevention systems, or barricades in accordance with this section
2007
7/57
FIRE PROTECTION SYSTEMS
and NFPA 69, or NFPA 495 as applicable. Deflagration venting shall not be
utilized as a means to protect buildings from detonation hazards.
Required deflagration venting. Areas that are required to be provided with
deflagration venting shall comply with the following:
1. Walls, ceilings and roofs exposing surrounding areas shall be designed to resist
a minimum internal pressure of 4,788 Pa. The minimum internal design
pressure shall not be less than five times the maximum internal relief pressure
specified in Section 7.11.2, Item 5.
2. Deflagration venting shall be provided only in exterior walls and roofs.
7.11.2
TABLE 7.11.1
EXPLOSION CONTROL REQUIREMENTS
MATERIAL
Combustible dustsa
Cryogenic fluids
Explosives
Flammable gas
Flammable liquids
Organic peroxides
Oxidizer liquids and solids
Pyrophoric
Unstable (reactive)
Water-reactive liquids and
solids
EXPLOSION CONTROL METHODS
Explosion (deflagration)
CLASS
Barricade
venting or explosion
(deflagration)
construction
prevention systems
Hazard Category
—
Not required
Required
Flammable
Not required
Required
Division 1.1
Division 1.2
Division 1.3
Division 1.4
Division 1.5
Division 1.6
Gaseous
Liquefied
IAb
IBc
U
I
Required
Required
Not required
Not required
Required
Required
Not required
Not required
Not required
Not required
Required
Required
Not required
Not required
Required
Required
Not required
Not required
Required
Required
Required
Required
Not permitted
Not permitted
4
Required
Not permitted
Gases
Not required
Required
4
Required
3 detonable
Required
3 nondetonable
Not required
3
Not required
Not required
2e
Special Uses
Not permitted
Not permitted
Required
Required
Required
Acetylene generator rooms
—
Not required
Required
Grain processing
Liquefied petroleum gas
distribution facilities
Where explosion hazards
existd
—
Not required
Required
—
Not required
Required
Detonation
Deflagration
Required
Not required
Not permitted
Required
a.
b.
c.
d.
e.
Combustible dusts that are generated during manufacturing or processing. See definition of Combustible Dust
in Chapter 1.
Storage or use.
In open use or dispensing.
Rooms containing dispensing and use of hazardous materials when an explosive environment can occur because
of the characteristics or nature of the hazardous materials or as a result of the dispensing or use process.
A method of explosion control shall be provided when Class 2 water-reactive materials can form potentially
explosive mixtures.
SBC 801
2007
7/58
FIRE PROTECTION SYSTEMS
3.
4.
5.
6.
7.
8.
Exception: Where sufficient exterior wall and roof venting cannot be provided
because of inadequate exterior wall or roof area, deflagration venting shall be
allowed by specially designed shafts vented to the exterior of the building.
Deflagration venting shall be designed to prevent unacceptable structural
damage. Where relieving a deflagration, vent closures shall not produce
projectiles of sufficient velocity and mass to cause life threatening injuries to
the occupants or other persons on the property or adjacent public ways.
The aggregate clear area of vents and venting devices shall be governed by the
pressure resistance of the construction assemblies specified in Item 1 of this
section and the maximum internal pressure allowed by Item 5 of this section.
Vents shall be designed to withstand loads in accordance with the SBC 301.
Vents shall consist of any one or any combination of the following to relieve at
a maximum internal pressure of 958 Pa, but not less than the loads required by
the SBC 301:
5.1 Exterior walls designed to release outward.
5.2 Hatch covers.
5.3 Outward swinging doors.
5.4 Roofs designed to uplift.
5.5 Venting devices listed for the purpose.
Vents designed to release from the exterior walls or roofs of the building when
venting a deflagration shall discharge directly to the exterior of the building
where an unoccupied space not less than 15.2 m in width is provided between
the exterior walls of the building and the property line.
Exception: Vents complying with Item 7 of this section.
Vents designed to remain attached to the building when venting a deflagration
shall be so located that the discharge opening shall not be less than 3 m
vertically from window openings and exits in the building and 6.1 m
horizontally from exits in the building, from window openings and exits in
adjacent buildings on the same property, and from the property line.
Discharge from vents shall not be into the interior of the building.
7.11.3
Explosion prevention systems. Explosion prevention systems shall be of an
approved type and installed in accordance with the provisions of these code
requirements and NFPA 69.
7.11.4
Barricades. Barricades shall be designed and installed in accordance with NFPA
495.
SECTION 7.12
CIVIL DEFENCE CONNECTIONS
7.12.1
Installation. Civil Defence connections shall be installed in accordance with the
NFPA standards applicable to the system design.
7.12.2
Location. With respect to hydrants, driveways, buildings and landscaping, Civil
Defence connections shall be so located that fire apparatus and hose connected to
supply the system will not obstruct access to the buildings for other fire apparatus.
The location of Civil Defence connections shall be approved.
Visible location. Civil Defence connections shall be located on the street side of
buildings, fully visible and recognizable from the street or nearest point of Civil
Defence vehicle access or as otherwise approved by the Building official.
7.12.2.1
SBC 801
2007
7/59
FIRE PROTECTION SYSTEMS
7.12.2.2
Existing buildings. On existing buildings, wherever the Civil Defence connection
is not visible to approaching fire apparatus, the Civil Defence connection shall be
indicated by an approved sign mounted on the street front or on the side of the
building. Such sign shall have the letters “CDC” at least 150 mm high and words
in letters at least 51 mm high or an arrow to indicate the location. All such signs
shall be subject to the approval of the Building official.
7.12.3
Access. Immediate access to fire department connections shall be maintained at all
times and without obstruction by fences, bushes, trees, walls or any other object
for a minimum of 1.0 m.
Locking Civil Defence connection caps. The Building official is authorized to
require locking caps on Civil Defence connections for water-based fire protection
systems where the responding fire department carries appropriate key wrenches for
removal.
7.12.3.1
7.12.4
Signs. A metal sign with raised letters at least 25 mm in size shall be mounted on
all Civil Defence connections serving fire sprinklers, standpipes or fire pump
connections. Such signs shall read: AUTOMATIC SPRINKLERS or
STANDPIPES or TEST CONNECTION or a combination thereof as applicable.
7.12.5
Backflow protection. The potable water supply to automatic sprinkler and
standpipe systems shall be protected against backflow as required by the SBC 701
and NFPA standards.
7.12.6
Inspection, testing and maintenance. All Civil Defence connections shall be
periodically inspected, tested and maintained in accordance with NFPA 25.
SECTION 7.13
FIRE PUMPS
7.13.1
General. Where provided, fire pumps shall be installed in accordance with this
section and NFPA 20.
7.13.2
Protection against interruption of service. The fire pump, driver, and controller
shall be protected in accordance with NFPA 20 against possible interruption of
service through damage caused by explosion, fire, flood, earthquake, rodents,
insects, windstorm, freezing, vandalism and other adverse conditions.
7.13.3
Temperature of pump room. Suitable means shall be provided for maintaining
the temperature of a pump room or pump house, where required, above 5°C.
Engine manufacturer’s recommendation. Temperature of the pump room, pump
house or area where engines are installed shall never be less than the minimum
recommended by the engine manufacturer. The engine manufacturer’s
recommendations for oil heaters shall be followed.
7.13.3.1
7.13.4
SBC 801
Valve supervision. Where provided, the fire pump suction, discharge and bypass
valves, and the isolation valves on the backflow prevention device or assembly
shall be supervised open by one of the following methods:
1. Central-station, proprietary, or remote-station signaling service.
2. Local signaling service that will cause the sounding of an audible signal at a
constantly attended location.
2007
7/60
FIRE PROTECTION SYSTEMS
3. Locking valves open.
4. Sealing of valves and approved weekly recorded inspection where valves are
located within fenced enclosures under the control of the owner.
7.13.5
7.13.5.1
7.13.5.2
7.13.5.3
7.13.5.4
SBC 801
Testing and maintenance. Fire pumps shall be inspected, tested and maintained
in accordance with the requirements of this section and NFPA 25.
Acceptance test. Acceptance testing shall be done in accordance with the
requirements of NFPA 20.
Generator sets. Engine generator sets supplying emergency or standby power to
fire pump assemblies shall be periodically tested in accordance with NFPA 110.
Transfer switches. Automatic transfer switches shall be periodically tested in
accordance with NFPA 110.
Pump room environmental conditions. Tests of pump room environmental
conditions, including heating, ventilation and illumination shall be made to ensure
proper manual or automatic operation of the associated equipment.
2007
7/61
MEANS OF EGRESS
CHAPTER 8
MEANS OF EGRESS
SECTION 8.1
GENERAL
8.1.1
General. Buildings or portions thereof shall be provided with a means of egress
system as required by this chapter. The provisions of this chapter shall control the
design, construction and arrangement of means of egress components required to
provide an approved means of egress from structures and portions thereof.
Sections 8.3 through 8.25 shall apply to new construction. Sections 8.26 and 8.27
shall apply to existing buildings.
Exception: Detached one- and two-family dwellings and multiple single-family
dwellings (townhouses) not more than three stories above grade plane in height
with a separate means of egress and their accessory structures shall not be
considered in this Chapter.
8.1.2
Minimum requirements. It shall be unlawful to alter a building or structure in a
manner that will reduce the number of exits or the capacity of the means of egress
to less than required by these code requirements.
SECTION 8.2
DEFINITIONS
8.2.1
Definitions. The following words and terms shall, for the purposes of this chapter
and as used elsewhere in these code requirements, have the meanings shown
herein.
ACCESSIBLE MEANS OF EGRESS. A continuous and unobstructed way of
egress travel from any point in a building or facility that provides an accessible
route to an area of refuge, a horizontal exit or a public way.
AISLE ACCESSWAY. That portion of an exit access that leads to an aisle.
ALTERNATING TREAD DEVICE. A device that has a series of steps between
50 and 70 degrees (0.87 and 1.22 rad) from horizontal, usually attached to a center
support rail in an alternating manner so that the user does not have both feet on the
same level at the same time.
AREA OF REFUGE. An area where persons unable to use stairways can remain
temporarily to await instructions or assistance during emergency evacuation.
BLEACHERS. Tiered seating facilities.
COMMON PATH OF EGRESS TRAVEL. That portion of exit access which
the occupants are required to traverse before two separate and distinct paths of
egress travel to two exits are available. Paths that merge are common paths of
travel. Common paths of egress travel shall be included within the permitted travel
distance.
SBC 801
2007
8/1
MEANS OF EGRESS
CORRIDOR. An enclosed exit access component that defines and provides a path
of egress travel to an exit.
DOOR, BALANCED. A door equipped with double-pivoted hardware so
designed as to cause a semicounter balanced swing action when opening.
EGRESS COURT. A court or yard which provides access to a public way for one
or more exits.
EMERGENCY ESCAPE AND RESCUE OPENING. An operable window,
door or other similar device that provides for a means of escape and access for
rescue in the event of an emergency.
EXIT. That portion of a means of egress system which is separated from other
interior spaces of a building or structure by fire-resistance-rated construction and
opening protectives as required to provide a protected path of egress travel
between the exit access and the exit discharge. Exits include exterior exit doors at
ground level, exit enclosures, exit passageways, exterior exit stairs, exterior exit
ramps and horizontal exits.
EXIT ACCESS. That portion of a means of egress system that leads from any
occupied portion of a building or structure to an exit.
EXIT DISCHARGE. That portion of a means of egress system between the
termination of an exit and a public way.
EXIT DISCHARGE, LEVEL OF. The horizontal plane located at the point at
which an exit terminates and an exit discharge begins.
EXIT ENCLOSURE. An exit component that is separated from other interior
spaces of a building or structure by fire-resistance-rated construction and opening
protectives, and provides for a protected path of egress travel in a vertical or
horizontal direction to the exit discharge or the public way.
EXIT, HORIZONTAL. A path of egress travel from one building to an area in
another building on approximately the same level, or a path of egress travel
through or around a wall or partition to an area on approximately the same level in
the same building, which affords safety from fire and smoke from the area of
incidence and areas communicating therewith.
EXIT PASSAGEWAY. An exit component that is separated from all other
interior spaces of a building or structure by fire-resistance-rated construction and
opening protectives, and provides for a protected path of egress travel in a
horizontal direction to the exit discharge or the public way.
FIRE EXIT HARDWARE. Panic hardware that is listed for use on fire door
assemblies.
FLOOR AREA, GROSS. The floor area within the inside perimeter of the
exterior walls of the building under consideration, exclusive of vent shafts and
courts, without deduction for corridors, stairways, closets, the thickness of interior
SBC 801
2007
8/2
MEANS OF EGRESS
walls, columns or other features. The floor area of a building, or portion thereof,
not provided with surrounding exterior walls shall be the usable area under the
horizontal projection of the roof or floor above. The gross floor area shall not
include shafts with no openings or interior courts.
FLOOR AREA, NET. The actual occupied area not including unoccupied
accessory areas such as corridors, stairways, toilet rooms, mechanical rooms and
closets.
FOLDING AND TELESCOPIC SEATING. Tiered seating facilities having an
overall shape and size that are capable of being reduced for purposes of moving or
storing.
GRANDSTAND. Tiered seating facilities.
GUARD. A building component or a system of building components located at or
near the open sides of elevated walking surfaces that minimizes the possibility of a
fall from the walking surface to a lower level.
HANDRAIL. A horizontal or sloping rail intended for grasping by the hand for
guidance or support.
MEANS OF EGRESS. A continuous and unobstructed path of vertical and
horizontal egress travel from any occupied portion of a building or structure to a
public way. A means of egress consists of three separate and distinct parts: the exit
access, the exit and the exit discharge.
NOSING. The leading edge of treads of stairs and of landings at the top of
stairway flights.
OCCUPANT LOAD. The number of persons for which the means of egress of a
building or portion thereof is designed.
PANIC HARDWARE. A door-latching assembly incorporating a device that
releases the latch upon the application of a force in the direction of egress travel.
PUBLIC WAY. A street, alley or other parcel of land open to the outside air
leading to a street, that has been deeded, dedicated or otherwise permanently
appropriated to the public for public use and which has a clear width and height of
not less than 3.1 m.
RAMP. A walking surface that has a running slope steeper than one unit vertical
in 20 units horizontal (5 percent slope).
SCISSOR STAIR. Two interlocking stairways providing two separate paths of
egress located within one stairwell enclosure.
SMOKE-PROTECTED ASSEMBLY SEATING. Seating served by means of
egress that is not subject to smoke accumulation within or under a structure.
STAIR. A change in elevation, consisting of one or more risers.
SBC 801
2007
8/3
MEANS OF EGRESS
STAIRWAY. One or more flights of stairs, either exterior or interior, with the
necessary landings and platforms connecting them, to form a continuous and
uninterrupted passage from one level to another.
STAIRWAY, EXTERIOR. A stairway that is open on at least one side, except
for required structural columns, beams, handrails and guards. The adjoining open
areas shall be either yards, courts or public ways. The other sides of the exterior
stairway need not be open.
STAIRWAY, INTERIOR. A stairway not meeting the definition of an exterior
stairway.
STAIRWAY, SPIRAL. A stairway having a closed circular form in its plan view
with uniform section-shaped treads attached to and radiating from a minimumdiameter supporting column.
WINDER. A tread with nonparallel edges.
SECTION 8.3
GENERAL MEANS OF EGRESS
8.3.1
Applicability. The general requirements specified in Sections 8.3 through 8.12
shall apply to all three elements of the means of egress system, in addition to those
specific requirements for the exit access, the exit and the exit discharge detailed
elsewhere in this chapter.
8.3.2
Ceiling height. The means of egress shall have a ceiling height of not less than 2.1
m.
Exceptions:
1. Sloped ceilings in accordance with Section 7.8.2 of the SBC 201.
2. Ceilings of dwelling units and sleeping units within residential occupancies in
accordance with Section 7.8.2 of the SBC 201.
3. Allowable projections in accordance with Section 8.3.3.
4. Stair headroom in accordance with Section 8.9.2.
5. Door height in accordance with Section 8.8.1.1.
8.3.3
Protruding objects. Protruding objects shall comply with the requirements of
Sections 8.3.3.1 through 8.3.3.4.
Headroom. Protruding objects are permitted to extend below the minimum ceiling
height required by Section 8.3.2 provided a minimum headroom of 2 m shall be
provided for any walking surface, including walks, corridors, aisles and
passageways. Not more than 50 percent of the ceiling area of a means of egress
shall be reduced in height by protruding objects.
Exception: Door closers and stops shall not reduce headroom to less than 2.0 m. A
barrier shall be provided where the vertical clearance is less than 2.1 m high. The
leading edge of such a barrier shall be located 685 mm maximum above the floor.
Free-standing objects. A free-standing object mounted on a post or pylon shall
not overhang that post or pylon more than 300 mm where the lowest point of the
leading edge is more than 685 mm and less than 2.1 m above the walking surface.
Where a sign or other obstruction is mounted between posts or pylons and the
clear distance between the posts or pylons is greater than 300 mm, the lowest edge
8.3.3.1
8.3.3.2
SBC 801
2007
8/4
MEANS OF EGRESS
8.3.3.3
8.3.3.4
of such sign or obstruction shall be 685 mm maximum or 2.1 m minimum above
the finish floor or ground.
Exception: This requirement shall not apply to sloping portions of handrails
serving stairs and ramps.
Horizontal projections. Structural elements, fixtures or furnishings shall not
project horizontally from either side more than 100 mm over any walking surface
between the heights of 685 mm and 2 m above the walking surface.
Exception: Handrails serving stairs and ramps are permitted to protrude 114 mm
from the wall.
Clear width. Protruding objects shall not reduce the minimum clear width of
accessible routes as required in Section 9.4 of the SBC 201.
8.3.4
Floor surface. Walking surfaces of the means of egress shall have a slip-resistant
surface and be securely attached.
8.3.5
Elevation change. Where changes in elevation of less than 300 mm exist in the
means of egress, sloped surfaces shall be used. Where the slope is greater than one
unit vertical in 20 units horizontal (5 percent slope), ramps complying with
Section 8.10 shall be used. Where the difference in elevation is 150 mm or less,
the ramp shall be equipped with either handrails or floor finish materials that
contrast with adjacent floor finish materials.
Exceptions:
1. A single step with a maximum riser height of 180 mm is permitted for
buildings with occupancies in Groups F, H, R-2 and R-3 as applicable in
Chapter 2, and Groups S and U at exterior doors not required to be accessible
by Chapter 9 of the SBC 201.
2. A stair with a single riser or with two risers and a tread is permitted at
locations not required to be accessible by Chapter 9 of the SBC 201, provided
that the risers and treads comply with Section 8.9.3, the minimum depth of the
tread is 330 mm and at least one handrail complying with Section 8.9.11 is
provided within 760 mm of the centerline of the normal path of egress travel
on the stair.
3. An aisle serving seating that has a difference in elevation less than 300 mm is
permitted at locations not required to be accessible by Chapter 9 of the SBC
201, provided that the risers and treads comply with Section 8.24.11 and the
aisle is provided with a handrail complying with Section 8.24.13.
Any change in elevation in a corridor serving nonambulatory persons in a Group I2 occupancy shall be by means of a ramp or sloped walkway.
8.3.6
Means of egress continuity. The path of egress travel along a means of egress
shall not be interrupted by any building element other than a means of egress
component as specified in this chapter. Obstructions shall not be placed in the
required width of a means of egress except projections permitted by this shall not
be diminished along the path of egress travel.
8.3.7
Elevators, escalators and moving walks. Elevators, escalators and moving walks
shall not be used as a component of a required means of egress from any other part
of the building.
Exception: Elevators used as an accessible means of egress in accordance with
Section 8.7.4.
SBC 801
2007
8/5
MEANS OF EGRESS
SECTION 8.4
OCCUPANT LOAD
8.4.1
8.4.1.1
8.4.1.2
8.4.1.3
Design occupant load. In determining means of egress requirements, the number
of occupants for whom means of egress facilities shall be provided shall be
established by the largest number computed in accordance with Sections 8.4.1.1
through 8.4.1.3.
Actual number. The actual number of occupants for whom each occupied space,
floor or building is designed.
Number by Table 8.4.1.2. The number of occupants computed at the rate of one
occupant per unit of area as prescribed in Table 8.4.1.2.
Number by combination. Where occupants from accessory spaces egress through
a primary area, the calculated occupant load for the primary space shall include the
total occupant load of the primary space plus the number of occupants egressing
through it from the accessory space.
8.4.2
Increased occupant load. The occupant load permitted in any building or portion
thereof is permitted to be increased from that number established for the
occupancies in Table 8.4.1.2 provided that all other requirements of the code are
also met based on such modified number and the occupant load shall not exceed
2
one occupant per 0.47 m of occupiable floor space. Where required by the
building code official, an approved aisle, seating or fixed equipment diagram
substantiating any increase in occupant load shall be submitted. Where required by
the building code official, such diagram shall be posted.
8.4.3
Posting of occupant load. Every room or space that is an assembly occupancy
shall have the occupant load of the room or space posted in a conspicuous place,
near the main exit or exit access doorway from the room or space. Posted signs
shall be of an approved legible permanent design and shall be maintained by the
owner or authorized agent.
8.4.4
Exiting from multiple levels. Where exits serve more than one floor, only the
occupant load of each floor considered individually shall be used in computing the
required capacity of the exits at that floor, provided that the exit capacity shall not
decrease in the direction of egress travel.
8.4.5
Egress convergence. Where means of egress from floors above and below
converge at an intermediate level, the capacity of the means of egress from the
point of convergence shall not be less than the sum of the two floors.
8.4.6
Mezzanine levels. The occupant load of a mezzanine level with egress onto a
room or area below shall be added to that room or area’s occupant load, and the
capacity of the exits shall be designed for the total occupant load thus established.
8.4.7
Fixed seating. For areas having fixed seats and aisles, the occupant load shall be
determined by the number of fixed seats installed therein.
For areas having fixed seating without dividing arms, the occupant load shall not
be less than the number of seats based on one person for each 450 mm of seating
length.
The occupant load of seating booths shall be based on one person for each 600 mm
of booth seat length measured at the backrest of the seating booth.
SBC 801
2007
8/6
MEANS OF EGRESS
TABLE 8.4.1.2
MAXIMUM FLOOR AREA ALLOWANCES PER OCCUPANT
FLOOR AREA IN SQ. METER.
OCCUPANCY
PER OCCUPANT
Agricultural building
28 gross
Aircraft hangars
47 gross
Airport terminal
Baggage claim
1.9 gross
Baggage handling
28 gross
Concourse
9.3 gross
Waiting areas
1.4 gross
Assembly
Gaming floors (keno, slots, etc.)
1 gross
Assembly with fixed seats
See Section 8.3.2.2.9
Assembly without fixed seats
Concentrated (chairs only—not fixed)
0.65 net
Standing space
0.47 net
Unconcentrated (tables and chairs)
1.4 net
Bowling centers, allow 5 persons for each lane
including 15 feet of runway, and for additional areas
0.65 net
Business areas
9.3 gross
Courtrooms—other than fixed seating areas
3.7 net
Dormitories
4.7 gross
Educational
Classroom area
1.9 net
Shops and other vocational room areas
4.7 net
Exercise rooms
4.7 gross
H-5 Fabrication and manufacturing areas
18.6 gross
Industrial areas
9.3 gross
Institutional areas
Inpatient treatment areas
22.3 gross
Outpatient areas
9.3 gross
Sleeping areas
11.2 gross
Kitchens, commercial
18.6 gross
Library
Reading rooms
4.7 net
Stack area
9.3 gross
Locker rooms
4.7 gross
Mercantile
Areas on other floors
5.6 gross
Basement and grade floor areas
2.8 gross
Storage, stock, shipping areas
28 gross
Parking garages
18.6 gross
Residential
18.6 gross
Skating rinks, swimming pools
Rink and pool
4.7 gross
Decks
1.4 gross
Stages and platforms
1.4 net
Accessory storage areas, mechanical equipment room
28 gross
Warehouses
47 gross
SBC 801
2007
8/7
MEANS OF EGRESS
8.4.8
Outdoor areas. Yards, patios, courts and similar outdoor areas accessible to and
usable by the building occupants shall be provided with means of egress as
required by this chapter. The occupant load of such outdoor areas shall be assigned
by the building code official in accordance with the anticipated use. Where
outdoor areas are to be used by persons in addition to the occupants of the
building, and the path of egress travel from the outdoor areas passes through the
building, means of egress requirements for the building shall be based on the sum
of the occupant loads of the building plus the outdoor areas.
Exceptions:
1. Outdoor areas used exclusively for service of the building need only have one
means of egress.
2. Both outdoor areas associated with Group R-3 and individual dwelling units of
Group R-2, as applicable in Section 8.1.1.
8.4.9
Multiple occupancies. Where a building contains two or more occupancies, the
means of egress requirements shall apply to each portion of the building based on
the occupancy of that space. Where two or more occupancies utilize portions of
the same means of egress system, those egress components shall meet the more
stringent requirements of all occupancies that are served.
SECTION 8.5
EGRESS WIDTH
Minimum required egress width. The means of egress width shall not be less
than required by this section. The total width of means of egress in millimeters
shall not be less than the total occupant load served by the means of egress
multiplied by the factors in Table 8.5.1 and not less than specified elsewhere in
these code requirements. Multiple means of egress shall be sized such that the loss
of any one means of egress shall not reduce the available capacity to less than 50
percent of the required capacity. The maximum capacity required from any story
of a building shall be maintained to the termination of the means of egress.
Exception: Means of egress complying with Section 8.24.
8.5.1
TABLE 8.5.1
EGRESS WIDTH PER OCCUPANT SERVED
OCCUPANCY
Occupancies other than
those listed below
Hazardous: H-1, H-2,
H-3 and H-4
Institutional: I-2
a.
WITHOUT SPRINKLER SYSTEM
Other egress
components
Stairways (mm
(mm per
occupant)
per occupant)
WITH SPRINKLER
SYSTEMa
Other egress
components
Stairways
(mm per
(mm per
occupant)
occupant)
7.6
5.1
5.1
3.8
17.8
10.2
7.6
5.1
Not Applicable
Not Applicable
7.6
5.1
Buildings equipped throughout with an automatic sprinkler system in accordance with Section 7.3.3.1.1 or
7.3.3.1.2.
8.5.2
SBC 801
Door encroachment. Doors opening into the path of egress travel shall not reduce
the required width to less than one-half during the course of the swing. When fully
open, the door shall not project more than 180 mm into the required width.
2007
8/8
MEANS OF EGRESS
Exception: The restrictions on a door swing shall not apply to doors within
individual dwelling units and sleeping units of Group R-2 and dwelling units of
Group R-3.
SECTION 8.6
MEANS OF EGRESS ILLUMINATION
8.6.1
Illumination required. The means of egress, including the exit discharge, shall be
illuminated at all times the building space served by the means of egress is
occupied.
Exceptions:
1. Occupancies in Group U.
2. Aisle accessways in Group A.
3. Dwelling units and sleeping units in Groups R-1, R-2 and R-3.
4. Sleeping units of Group I occupancies.
8.6.2
Illumination level. The means of egress illumination level shall not be less than
11 lux at the floor level.
Exception: For auditoriums, theaters, concert or opera halls and similar assembly
occupancies, the illumination at the floor level is permitted to be reduced during
performances to not less than 2.15 lux provided that the required illumination is
automatically restored upon activation of a premise’s fire alarm system where such
system is provided.
8.6.3
Illumination emergency power. The power supply for means of egress
illumination shall normally be provided by the premise’s electrical supply.
In the event of power supply failure, an emergency electrical system shall
automatically illuminate the following areas:
1. Exit access corridors, passageways and aisles in rooms and spaces which
require two or more means of egress.
2. Exit access corridors and exit stairways located in buildings required to have
two or more exits.
3. Exterior egress components at other than the level of exit discharge until exit
discharge is accomplished for buildings required to have two or more exits.
4. Interior exit discharge elements, as permitted in Section 8.23.1, in buildings
required to have two or more exits.
5. The portion of the exterior exit discharge immediately adjacent to exit
discharge doorways in buildings required to have two or more exits.
The emergency power system shall provide power for a duration of not less than
90 minutes and shall consist of storage batteries, unit equipment or an on-site
generator. The installation of the emergency power system shall be in accordance
with Section 5D.4.
8.6.4
Performance of system. Emergency lighting facilities shall be arranged to
provide initial illumination that is at least an average of 11 lux and a minimum at
any point of 1 lux measured along the path of egress at floor level. Illumination
levels shall be permitted to decline to 6 lux average and a minimum at any point of
0.6 lux at the end of the emergency lighting time duration. A maximum-tominimum illumination uniformity ratio of 40 to 1 shall not be exceeded.
SBC 801
2007
8/9
MEANS OF EGRESS
SECTION 8.7
ACCESSIBLE MEANS OF EGRESS
8.7.1
Accessible means of egress required. Accessible means of egress shall comply
with this section. Accessible spaces shall be provided with not less than one
accessible means of egress. Where more than one means of egress is required by
Section 8.14.1 or 8.18.1 from any accessible space, each accessible portion of the
space shall be served by not less than two accessible means of egress.
Exceptions:
1. Accessible means of egress are not required in alterations to existing buildings.
2. One accessible means of egress is required from an accessible mezzanine level
in accordance with Section 8.7.3 or 8.7.4.
3. In assembly spaces with sloped floors, one accessible means of egress is
required from a space where the common path of travel of the accessible route
for access to the wheelchair spaces meets the requirements in Section 8.24.9.
8.7.2
Continuity and components. Each required accessible means of egress shall be
continuous to a public way and shall consist of one or more of the following
components:
1. Accessible routes complying with Section 9.4 of the SBC 201.
2. Stairways within exit enclosures complying with Sections 8.7.3 and 8.19.1.
3. Elevators complying with Section 8.7.4.
4. Platform lifts complying with Section 8.7.5.
5. Horizontal exits.
6. Smoke barriers.
Exceptions:
1. Where the exit discharge is not accessible, an exterior area for assisted rescue
must be provided in accordance with Section 8.7.8.
2. Where the exit stairway is open to the exterior, the accessible means of egress
shall include either an area of refuge in accordance with Section 8.7.6 or an
exterior area for assisted rescue in accordance with Section 8.7.8.
Buildings with four or more stories. In buildings where a required accessible
floor is four or more stories above or below a level of exit discharge, at least one
required accessible means of egress shall be an elevator complying with Section
8.7.4.
Exceptions:
1. In buildings equipped throughout with an automatic sprinkler system installed
in accordance with Section 7.3.3.1.1 or 7.3.3.1.2, the elevator shall not be
required on floors provided with a horizontal exit and located at or above the
level of exit discharge.
2. In buildings equipped throughout with an automatic sprinkler system installed
in accordance with Section 7.3.3.1.1 or 7.3.3.1.2, the elevator shall not be
required on floors provided with a ramp conforming to the provisions of
Section 8.10.
8.7.2.1
8.7.3
SBC 801
Enclosed exit stairways. An enclosed exit stairway, to be considered part of an
accessible means of egress, shall have a clear width of 1.2 m minimum between
handrails and shall either incorporate an area of refuge within an enlarged floorlevel landing or shall be accessed from either an area of refuge complying with
Section 8.7.6 or a horizontal exit.
2007
8/10
MEANS OF EGRESS
Exceptions:
1. Open exit stairways as permitted by Section 8.19.1 are permitted to be
considered part of an accessible means of egress.
2. The area of refuge is not required at open stairways that are permitted by
Section 8.19.1 in buildings or facilities that are equipped throughout with an
automatic sprinkler system installed in accordance with Section 7.3.3.1.1.
3. The clear width of 1.2 m between handrails and the area of refuge is not
required at exit stairways in buildings or facilities equipped throughout with an
automatic sprinkler system installed in accordance with Section 7.3.3.1.1 or
7.3.3.1.2.
4. The clear width of 1.2 m between handrails is not required for enclosed exit
stairways accessed from a horizontal exit.
5. Areas of refuge are not required at exit stairways serving open parking
garages.
8.7.4
Elevators. An elevator to be considered part of an accessible means of egress shall
comply with the emergency operation and signaling device requirements of
Section 2.27 of ASME A17.1. Standby power shall be provided in accordance
with SBC 401 and 501. The elevator shall be accessed from either an area of
refuge complying with Section 8.7.6 or a horizontal exit.
Exceptions:
1. Elevators are not required to be accessed from an area of refuge or horizontal
exit in open parking garages.
2. Elevators are not required to be accessed from an area of refuge or horizontal
exit in buildings and facilities equipped throughout with an automatic sprinkler
system installed in accordance with Section 7.3.3.1.1 or 7.3.3.1.2.
8.7.5
Platform lifts. Platform (wheelchair) lifts shall not serve as part of an accessible
means of egress, except where allowed as part of a required accessible route in
Section 9.9.7 of the SBC 201. Platform lifts in accordance with SBC 401 shall be
installed in accordance with ASME A18.1. Standby power shall be provided in
accordance with Section 5D.4.2 for platform lifts permitted to serve as part of a
means of egress.
8.7.6
Areas of refuge. Every required area of refuge shall be accessible from the space
it serves by an accessible means of egress. The maximum travel distance from any
accessible space to an area of refuge shall not exceed the travel distance permitted
for the occupancy in accordance with Section 8.15.1. Every required area of refuge
shall have direct access to an enclosed stairway complying with Sections 8.7.3 and
8.19.1 or an elevator complying with Section 8.7.4. Where an elevator lobby is
used as an area of refuge, the shaft and lobby shall comply with Section 8.19.1.8
for smokeproof enclosures except where the elevators are in an area of refuge
formed by a horizontal exit or smoke barrier.
Size. Each area of refuge shall be sized to accommodate one wheelchair space of
760 mm by 1200 mm for each 200 occupants or portion thereof, based on the
occupant load of the area of refuge and areas served by the area of refuge. Such
wheelchair spaces shall not reduce the required means of egress width. Access to
any of the required wheelchair spaces in an area of refuge shall not be obstructed
by more than one adjoining wheelchair space.
8.7.6.1
SBC 801
2007
8/11
MEANS OF EGRESS
8.7.6.2
8.7.6.3
8.7.6.4
8.7.6.5
Separation. Each area of refuge shall be separated from the remainder of the story
by a smoke barrier complying with Section 4B.9. Each area of refuge shall be
designed to minimize the intrusion of smoke.
Exceptions:
1. Areas of refuge located within a stairway enclosure.
2. Areas of refuge where the area of refuge and areas served by the area of refuge
are equipped throughout with an automatic sprinkler system installed in
accordance with Section 7.3.3.1.1 or 7.3.3.1.2.
Two-way communication. Areas of refuge shall be provided with a two-way
communication system between the area of refuge and a central control point. If
the central control point is not constantly attended, the area of refuge shall also
have controlled access to a public telephone system. Location of the central
control point shall be approved by the Civil Defense. The two-way communication
system shall include both audible and visible signals.
Instructions. In areas of refuge that have a two-way emergency communications
system, instructions on the use of the area under emergency conditions shall be
posted adjoining the communications system. The instructions shall include all of
the following:
1. Directions to find other means of egress.
2. Persons able to use the exit stairway do so as soon as possible, unless they are
assisting others.
3. Information on planned availability of assistance in the use of stairs or
supervised operation of elevators and how to summon such assistance.
4. Directions for use of the emergency communications system.
Identification. Each door providing access to an area of refuge from an adjacent
floor area shall be identified by a sign complying with ICC A117.1 stating: AREA
OF REFUGE, and including the Saudi Symbol of Accessibility. Where exit sign
illumination is required by Section 8.11.2, the area of refuge sign shall be
illuminated. Additionally, tactile signage complying with ICC A117.1 shall be
located at each door to an area of refuge.
8.7.7
Signage. At exits and elevators serving a required accessible space but not
providing an approved accessible means of egress, signage shall be installed
indicating the location of accessible means of egress.
8.7.8
Exterior area for assisted rescue. The exterior area for assisted rescue must be
open to the outside air and meet the requirements of Section 8.7.6.1. Separation
walls shall comply with the requirements of Section 4B.4 for exterior walls. Where
walls or openings are between the area for assisted rescue and the interior of the
building, the building exterior walls within 3.1 m horizontally of a nonrated wall
or unprotected opening shall be constructed as required for a minimum 1-hour fireresistance rating with 3/4-hour opening protectives. This construction shall extend
vertically from the ground to a point 3.1 m above the floor level of the area for
assisted rescue or to the roof line, whichever is lower.
Openness. The exterior area for assisted rescue shall be at least 50 percent open,
and the open area above the guards shall be so distributed as to minimize the
accumulation of smoke or toxic gases.
Exterior exit stairway. Exterior exit stairways that are part of the means of egress
for the exterior area for assisted rescue shall provide a clear width of 1.2 m
between handrails.
8.7.8.1
8.7.8.2
SBC 801
2007
8/12
MEANS OF EGRESS
8.7.8.3
Identification. Exterior areas for assisted rescue shall have identification as
required for area of refuge that complies with Section 8.7.6.5.
SECTION 8.8
DOORS, GATES AND TURNSTILES
8.8.1
8.8.1.1
8.8.1.1.1
8.8.1.2
SBC 801
Doors. Means of egress doors shall meet the requirements of this section. Doors
serving a means of egress system shall meet the requirements of this section and
Section 8.17.2. Doors provided for egress purposes in numbers greater than
required by these code requirements shall meet the requirements of this section.
Means of egress doors shall be readily distinguishable from the adjacent
construction and finishes such that the doors are easily recognizable as doors.
Mirrors or similar reflecting materials shall not be used on means of egress doors.
Means of egress doors shall not be concealed by curtains, drapes, decorations or
similar materials.
Size of doors. The minimum width of each door opening shall be sufficient for the
occupant load thereof and shall provide a clear width of not less than 800 mm.
Clear openings of doorways with swinging doors shall be measured between the
face of the door and the stop, with the door open 90 degrees (1.57 rad). Where this
section requires a minimum clear width of 800 mm and a door opening includes
two door leaves without a mullion, one leaf shall provide a clear opening width of
800 mm. The maximum width of a swinging door leaf shall be 1.2 m nominal.
Means of egress doors in an occupancy in Group I-2 used for the movement of
beds shall provide a clear width not less than 1.1 m. The height of doors shall not
be less than 2.1 m.
Exceptions:
1. The minimum and maximum width shall not apply to door openings that are
not part of the required means of egress in occupancies in Groups R-2 and R-3
as applicable in Chapter 2.
2. Door openings to resident sleeping units in occupancies in Group I-3 shall
have a clear width of not less than 710 mm.
2
3. Door openings to storage closets less than 0.9 m in area shall not be limited by
the minimum width.
4. Width of door leafs in revolving doors that comply with Section 8.8.1.3.1 shall
not be limited.
5. Door openings within a dwelling unit or sleeping unit shall not be less than 2.0
m in height.
6. Exterior door openings in dwelling units and sleeping units, other than the
required exit door, shall not be less than 2.0 m in height.
7. Interior egress doors within a dwelling unit or sleeping unit which is not
required to be adaptable or accessible.
8. Door openings required to be accessible within Type B dwelling units shall
have a minimum clear width of 800 mm.
Projections into clear width. There shall not be projections into the required clear
width lower than 860 mm above the floor or ground. Projections into the clear
opening width between 860 mm and 2.1 m above the floor or ground shall not
exceed 100 mm.
Door swing. Egress doors shall be side-hinged swinging.
Exceptions:
1. Private garages, office areas, factory and storage areas with an occupant load
of 10 or less.
2007
8/13
MEANS OF EGRESS
8.8.1.3
8.8.1.3.1
2. Group I-3 occupancies used as a place of detention.
3. Doors within or serving a single dwelling unit in Groups R-2 and R-3 as
applicable in Chapter 2.
4. In other than Group H occupancies, revolving doors complying with Section
8.8.1.3.1.
5. In other than Group H occupancies, horizontal sliding doors complying with
Section 8.8.1.3.3 are permitted in a means of egress.
6. Power-operated doors in accordance with Section 8.8.1.3.1.
Doors shall swing in the direction of egress travel where serving an occupant load
of 50 or more persons or a Group H occupancy.
The opening force for interior side-swinging doors without closers shall not
exceed a 22 N force. For other side-swinging, sliding and folding doors, the door
latch shall release when subjected to a 67 N force. The door shall be set in motion
when subjected to a 133 N force. The door shall swing to a full-open position
when subjected to a 67 N force. Forces shall be applied to the latch side.
Special doors. Special doors and security grilles shall comply with the
requirements of Sections 8.8.1.3.1 through 8.8.1.3.5.
Revolving doors. Revolving doors shall comply with the following:
1. Each revolving door shall be capable of collapsing into a bookfold position
with parallel egress paths providing an aggregate width of 900 mm.
2. A revolving door shall not be located within 3.1 m of the foot of or top of stairs
or escalators. A dispersal area shall be provided between the stairs or
escalators and the revolving doors.
3. The revolutions per minute (rpm) for a revolving door shall not exceed those
shown in Table 8.8.1.3.1.
4. Each revolving door shall have a side-hinged swinging door which complies
with Section 8.8.1 in the same wall and within 3.1 m of the revolving door.
TABLE 8.8.1.3.1
REVOLVING DOOR SPEEDS
INSIDE
DIAMETER
(mm)
1,980
2,130
2,290
2,440
2,590
2,740
2,896
3,050
8.8.1.3.1.1
SBC 801
POWER-DRIVENTYPE SPEED
CONTROL
(rpm)
11
10
9
9
8
8
7
7
MANUAL-TYPE
SPEED CONTROL
(rpm)
12
11
11
10
9
9
8
8
Egress component. A revolving door used as a component of a means of egress
shall comply with Section 8.8.1.3.1 and the following three conditions:
1. Revolving doors shall not be given credit for more than 50 percent of the
required egress capacity.
2. Each revolving door shall be credited with no more than a 50-person capacity.
3. Each revolving door shall be capable of being collapsed when a force of not
more than 578 N is applied within 76 mm of the outer edge of a wing.
2007
8/14
MEANS OF EGRESS
8.8.1.3.1.2
Other than egress component. A revolving door used as other than a component
of a means o f egress shall comply with Section 8.8.1.3.1. The collapsing force of
a revolving door not used as a component of a means of egress shall not be more
than 801 N.
Exception: A collapsing force in excess of 801 N is permitted if the collapsing
force is reduced to not more than 578 N when at least one of the following
conditions is satisfied:
1. There is a power failure or power is removed to the device holding the door
wings in position.
2. There is an actuation of the automatic sprinkler system where such system is
provided.
3. There is an actuation of a smoke detection system which is installed in
accordance with Section 7.7 to provide coverage in areas within the building
which are within 23.0 m of the revolving doors.
4. There is an actuation of a manual control switch, in an approved location and
clearly defined, which reduces the holding force to below the 578 N force
level.
8.8.1.3.2
Power-operated doors. Where means of egress doors are operated by power, such
as doors with a photoelectric-actuated mechanism to open the door upon the
approach of a person, or doors with power-assisted manual operation, the design
shall be such that in the event of power failure, the door is capable of being opened
manually to permit means of egress travel or closed where necessary to safeguard
means of egress. The forces required to open these doors manually shall not
exceed those specified in Section 8.8.1.2, except that the force to set the door in
motion shall not exceed 220 N. The door shall be capable of swinging from any
position to the full width of the opening in which such door is installed when a
force is applied to the door on the side from which egress is made. Full-poweroperated doors shall comply with BHMA A156.19. Power-assisted and lowenergy doors shall comply with BHMA A156.19.
Exceptions:
1. Occupancies in Group I-3.
2. Horizontal sliding doors complying with Section 8.8.1.3.3.
3. For a biparting door in the emergency breakout mode, a door leaf located
within a multiple-leaf opening shall be exempt from the minimum 800 mm
single-leaf requirement of Section 8.8.1.1, provided a minimum 800 mm clear
opening is provided when the two biparting leaves meeting in the center are
broken out.
8.8.1.3.3
Horizontal sliding doors. In other than Group H occupancies, horizontal sliding
doors permitted to be a component of a means of egress in accordance with
Exception 5 to Section 8.8.1.2 shall comply with all of the following criteria:
1. The doors shall be power operated and shall be capable of being operated
manually in the event of power failure.
2. The doors shall be openable by a simple method from both sides without
special knowledge or effort.
3. The force required to operate the door shall not exceed 133 N to set the door in
motion and 67 N to close the door or open it to the minimum required width.
4. The door shall be openable with a force not to exceed 67 N when a force of
1,100 N is applied perpendicular to the door adjacent to the operating device.
SBC 801
2007
8/15
MEANS OF EGRESS
8.8.1.3.4
8.8.1.3.5
8.8.1.4
SBC 801
5. The door assembly shall comply with the applicable fire protection rating and,
where rated, shall be self closing or automatic-closing by smoke detection,
shall be installed in accordance with NFPA 80 and shall comply with Section
4B.15.
6. The door assembly shall have an integrated standby power supply.
7. The door assembly power supply shall be electrically supervised.
8. The door shall open to the minimum required width within 10 seconds after
activation of the operating device.
Access-controlled egress doors. The entrance doors in a means of egress in
buildings with an occupancy in Group A, B, E, M, R-1 or R-2 and entrance doors
to tenant spaces in occupancies in Groups A, B, E, M, R-1 and R-2 are permitted
to be equipped with an approved entrance and egress access control system which
shall be installed in accordance with all of the following criteria:
1. A sensor shall be provided on the egress side arranged to detect an occupant
approaching the doors. The doors shall be arranged to unlock by a signal from
or loss of power to the sensor.
2. Loss of power to that part of the access control system which locks the doors
shall automatically unlock the doors.
3. The doors shall be arranged to unlock from a manual unlocking device located
1.0 m to 1.2 m vertically above the floor and within 1.5 m of the secured doors.
Ready access shall be provided to the manual unlocking device and the device
shall be clearly identified by a sign that reads: PUSH TO EXIT. When
operated, the manual unlocking device shall result in direct interruption of
power to the lock—independent of the access control system electronics and
the doors shall remain unlocked for a minimum of 30 seconds.
4. Activation of the building fire alarm system, if provided, shall automatically
unlock the doors, and the doors shall remain unlocked until the fire alarm
system has been reset.
5. Activation of the building automatic sprinkler or fire detection system, if
provided, shall automatically unlock the doors. The doors shall remain
unlocked until the fire alarm system has been reset.
6. Entrance doors in buildings with an occupancy in Group A, B, E or M shall not
be secured from the egress side during periods that the building is open to the
general public.
Security grilles. In Groups B, F, M and S, horizontal sliding or vertical security
grilles are permitted at the main exit and shall be openable from the inside without
the use of a key or special knowledge or effort during periods that the space is
occupied. The grilles shall remain secured in the full-open position during the
period of occupancy by the general public. Where two or more means of egress are
required, not more than one-half of the exits or exit access doorways shall be
equipped with horizontal sliding or vertical security grilles.
Floor elevation. There shall be a floor or landing on each side of a door. Such
floor or landing shall be at the same elevation on each side of the door. Landings
shall be level except for exterior landings, which are permitted to have a slope not
to exceed 0.25 unit vertical in 12 units horizontal (2 percent slope).
Exceptions:
1. Doors serving individual dwelling units in Groups R-2 and R-3 as applicable in
Section 8.1.1 where the following apply:
1.1 A door is permitted to open at the top step of an interior flight of stairs,
provided the door does not swing over the top step.
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8/16
MEANS OF EGRESS
1.2
8.8.1.5
8.8.1.6
8.8.1.7
8.8.1.8
8.8.1.8.1
8.8.2.8.2
8.8.1.8.3
SBC 801
Screen doors and storm doors are permitted to swing over stairs or
landings.
2. Exterior doors as provided for in Section 8.3.5, Exception 1, and Section
8.17.2, which are not on an accessible route.
3. In Group R-3 occupancies, the landing at an exterior doorway shall not be
more than 200 mm below the top of the threshold, provided the door, other
than an exterior storm or screen door, does not swing over the landing.
4. Variations in elevation due to differences in finish materials, but not more than
12.7 mm.
5. Exterior decks, patios or balconies that are part of Type B dwelling units and
have impervious surfaces, and that are not more than 100 mm below the
finished floor level of the adjacent interior space of the dwelling unit.
Landings at doors. Landings shall have a width not less than the width of the
stairway or the door, whichever is the greater. Doors in the fully open position
shall not reduce a required dimension by more than 800 mm. When a landing
serves an occupant load of 50 or more, doors in any position shall not reduce the
landing to less than one-half its required width. Landings shall have a length
measured in the direction of travel of not less than 1.1 m.
Exception: Landing length in the direction of travel in Group R-3 as applicable in
Section 8.1.1 and Group U and within individual units of Group R-2 as applicable
in Section 8.1.1 need not exceed 900 mm.
Thresholds. Thresholds at doorways shall not exceed 19.1 mm in height for
sliding doors serving dwelling units or 12.7 mm for other doors. Raised thresholds
and floor level changes greater than 6.4 mm at doorways shall be beveled with a
slope not greater than one unit vertical in two units horizontal (50 percent slope).
Exception: The threshold height shall be limited to 200 mm where the occupancy
is Group R-2 or R-3 as applicable in Section 8.1.1, the door is an exterior door that
is not a component of the required means of egress and the doorway is not on an
accessible route.
Door arrangement. Space between two doors in series shall be 1.2 m minimum
plus the width of a door swinging into the space. Doors in series shall swing either
in the same direction or away from the space between doors.
Exceptions:
1. The minimum distance between horizontal sliding power-operated doors in a
series shall be 1.2 m.
2. Storm and screen doors serving individual dwelling units in Groups R-2 and R3 as applicable in Section 8.1.1 need not be spaced 1.2 m from the other door.
3. Doors within individual dwelling units in Groups R-2 and R-3 as applicable in
Section 8.1.1 other than within Type A dwelling units.
Door operations. Except as specifically permitted by this section egress doors
shall be readily openable from the egress side without the use of a key or special
knowledge or effort.
Hardware. Door handles, pulls, latches, locks and other operating devices on
doors required to be accessible by Chapter 9 of the SBC 201 shall not require tight
grasping, tight pinching or twisting of the wrist to operate.
Hardware height. Door handles, pulls, latches, locks and other operating devices
shall be installed 860 mm minimum and 1.2 m maximum above the finished floor.
Locks used only for security purposes and not used for normal operation are
permitted at any height.
Locks and latches. Locks and latches shall be permitted to prevent operation of
doors where any of the following exists:
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8/17
MEANS OF EGRESS
8.8.1.8.4
8.8.1.8.5
8.8.1.8.6
SBC 801
1. Places of detention or restraint.
2. In buildings in occupancy Group A having an occupant load of 300 or less,
Groups B, F, M and S, and in Mosques, the main exterior door or doors are
permitted to be equipped with key-operated locking devices from the egress
side provided:
2.1 The locking device is readily distinguishable as locked,
2.2 A readily visible durable sign (Arabic and English) is posted on the
egress side on or adjacent to the door stating: THIS DOOR TO REMAIN
UNLOCKED WHEN BUILDING IS OCCUPIED. The sign shall be in
letters 25 mm high on a contrasting background,
2.3 The use of the key-operated locking device is revocable by the building
code official for due cause.
3. Where egress doors are used in pairs, approved automatic flush bolts shall be
permitted to be used, provided that the door leaf having the automatic flush
bolts has no doorknob or surface-mounted hardware.
4. Doors from individual dwelling or sleeping units of Group R occupancies
having an occupant load of 10 or less are permitted to be equipped with a night
latch, dead bolt or security chain, provided such devices are openable from the
inside without the use of a key or tool.
Bolt locks. Manually operated flush bolts or surface bolts are not permitted.
Exceptions:
1. On doors not required for egress in individual dwelling units or sleeping units.
2. Where a pair of doors serves a storage or equipment room, manually operated
edge or surface-mounted bolts are permitted on the inactive leaf.
Unlatching. The unlatching of any leaf shall not require more than one operation.
Exception: More than one operation is permitted for unlatching doors in the
following locations:
1. Places of detention or restraint.
2. Where manually operated bolt locks are permitted by Section 8.8.1.8.4.
3. Doors with automatic flush bolts as permitted by Section 8.8.1.8.3, Exception
3.
4. Doors from individual dwelling units and guestrooms of Group R occupancies
as permitted by Section 8.8.1.8.3, Exception 4.
Delayed egress locks. Approved, listed, delayed egress locks shall be permitted to
be installed on doors serving any occupancy except Group A, E and H occupancies
in buildings that are equipped throughout with an automatic sprinkler system in
accordance with Section 7.3.3.1.1 or an approved automatic smoke or heat
detection system installed in accordance with Section 7.7, provided that the doors
unlock in accordance with Items 1 through 6 below. A building occupant shall not
be required to pass through more than one door equipped with a delayed egress
lock before entering an exit.
1. The doors unlock upon actuation of the automatic sprinkler system or
automatic fire detection system.
2. The doors unlock upon loss of power controlling the lock or lock mechanism.
3. The door locks shall have the capability of being unlocked by a signal from the
fire command center.
4. The initiation of an irreversible process which will release the latch in not
more than 15 seconds when a force of not more than 67 N is applied for 1
second to the release device. Initiation of the irreversible process shall activate
an audible signal in the vicinity of the door. Once the door lock has been
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8/18
MEANS OF EGRESS
8.8.1.8.7
8.8.1.9
8.8.2
8.8.2.1
8.8.3
SBC 801
released by the application of force to the releasing device, relocking shall be
by manual means only.
Exception: Where approved, a delay of not more than 30 seconds is permitted.
5. A sign (Arabic and English) shall be provided on the door located above and
within 300 mm of the release device reading: PUSH UNTIL ALARM
SOUNDS. DOOR CAN BE OPENED IN 15 [30] SECONDS.
6. Emergency lighting shall be provided at the door.
Stairway doors. Interior stairway means of egress doors shall be openable from
both sides without the use of a key or special knowledge or effort.
Exceptions:
1. Stairway discharge doors shall be openable from the egress side and shall only
be locked from the opposite side.
2. This section shall not apply to doors arranged in accordance with Section
2B.3.12.
3. In stairways serving not more than four stories, doors are permitted to be
locked from the side opposite the egress side, provided they are openable from
the egress side.
Panic and fire exit hardware. Where panic and fire exit hardware is installed, it
shall comply with the following:
1. The actuating portion of the releasing device shall extend at least one-half of
the door leaf width.
2. A maximum unlatching force of 67 N. Each door in a means of egress from an
occupancy of Group A or E having an occupant load of 100 or more and any
occupancy of Group H-1, H-2, H-3 or H-5 shall not be provided with a latch or
lock unless it is panic hardware or fire exit hardware.
If balanced doors are used and panic hardware is required, the panic hardware
shall be the push-pad type and the pad shall not extend more than one-half the
width of the door measured from the latch side.
Gates. Gates serving the means of egress system shall comply with the
requirements of this section. Gates used as a component in a means of egress shall
conform to the applicable requirements for doors.
Exception: Horizontal sliding or swinging gates exceeding the 1.2 m maximum
leaf width limitation are permitted in fences and walls surrounding a stadium.
Stadiums. Panic hardware is not required on gates surrounding stadiums where
such gates are under constant immediate supervision while the public is present,
2
and further provided that safe dispersal areas based on 0.28 m per occupant are
located between the fence and enclosed space. Such required safe dispersal areas
shall not be located less than 15.3 m from the enclosed space. See Section 8.17 for
means of egress from safe dispersal areas.
Turnstiles. Turnstiles or similar devices that restrict travel to one direction shall
not be placed so as to obstruct any required means of egress.
Exception: Each turnstile or similar device shall be credited with no more than a
50-person capacity where all of the following provisions are met:
1. Each device shall turn free in the direction of egress travel when primary
power is lost, and upon the manual release by an employee in the area.
2. Such devices are not given credit for more than 50 percent of the required
egress capacity.
3. Each device is not more than 1.0 m high.
2007
8/19
MEANS OF EGRESS
8.8.3.1
8.8.3.2
4. Each device has at least 400 mm clear width at and below a height of 1.0 m
and at least 560 mm clear width at heights above 1.0 m.
Where located as part of an accessible route, turnstiles shall have at least 900 mm
clear at and below a height of 860 mm, at least 800 mm clear width between 860
mm and 2.1 m and shall consist of a mechanism other than a revolving device.
High turnstile. Turnstiles more than 1.0 m high shall meet the requirements for
revolving doors.
Additional door. Where serving an occupant load greater than 300, each turnstile
that is not portable shall have a side-hinged swinging door which conforms to
Section 8.8.1 within 15.3 m.
SECTION 8.9
STAIRWAYS AND HANDRAILS
8.9.1
Stairway width. The width of stairways shall be determined as specified in
Section 8.5.1, but such width shall not be less than 1.1 m. See Section 8.7.3 for
accessible means of egress stairways.
Exceptions:
1. Stairways serving an occupant load of 50 or less shall have a width of not less
than 900 mm.
2. Spiral stairways as provided for in Section 8.9.9.
3. Aisle stairs complying with Section 8.24.
4. Where a stairway lift is installed on stairways serving occupancies in Group R3, or within dwelling units in occupancies in Group R-2, both as applicable in
Section 8.1.1 a clear passage width not less than 500 mm shall be provided. If
the seat and platform can be folded when not in use, the distance shall be
measured from the folded position.
8.9.2
Headroom. Stairways shall have a minimum headroom clearance of 2.1 m
measured vertically from a line connecting the edge of the no sings. Such
headroom shall be continuous above the stairway to the point where the line
intersects the landing below, one tread depth beyond the bottom riser. The
minimum clearance shall be maintained the full width of the stairway and landing.
Exception: Spiral stairways complying with Section 8.9.9 are permitted a 2.0 m
headroom clearance.
8.9.3
Stair treads and risers. Stair riser heights shall be 180 mm maximum and 100
mm minimum. Stair tread depths shall be 280 mm minimum. The riser height shall
be measured vertically between the leading edges of adjacent treads. The greatest
riser height within any flight of stairs shall not exceed the smallest by more than
9.5 mm. The tread depth shall be measured horizontally between the vertical
planes of the foremost projection of adjacent treads and at right angle to the tread’s
leading edge. The greatest tread depth within any flight of stairs shall not exceed
the smallest by more than 9.5 mm. Winder treads shall have a minimum tread
depth of 0.28 m measured at a right angle to the tread’s leading edge at a point 300
mm from the side where the treads are narrower and a minimum tread depth of
0.25 m. The greatest winder tread depth at the 300 mm walk line within any flight
of stairs shall not exceed the smallest by more than 9.5 mm.
Exceptions:
1. Circular stairways in accordance with Section 8.9.7.
2. Winders in accordance with Section 8.9.8.
SBC 801
2007
8/20
MEANS OF EGRESS
8.9.3.1
8.9.3.2
8.9.4
SBC 801
3. Spiral stairways in accordance with Section 8.9.9.
4. Aisle stairs in assembly seating areas where the stair pitch or slope is set, for
sightline reasons, by the slope of the adjacent seating area in accordance with
Section 8.24.11.2.
5. In occupancies in Group R-3, as applicable in Section 8.1.1, within dwelling
units in occupancies in Group R-2, as applicable in Section 8.1.1, and in
occupancies in Group U, which are accessory to an occupancy in Group R-3,
as applicable in Section 8.1.1, the maximum riser height shall be 200 mm and
the minimum tread depth shall be 250 mm, the minimum winder tread depth at
the walk line shall be 250 mm, and the minimum winder tread depth shall be
150 mm. A nosing not less than 19 mm but not more than 32 mm shall be
provided on stairways with solid risers where the tread depth is less than 300
mm.
6. See the Chapter 9 for the replacement of existing stairways.
Dimensional uniformity. Stair treads and risers shall be of uniform size and
shape. The tolerance between the largest and smallest riser or between the largest
and smallest tread shall not exceed 9.5 mm in any flight of stairs.
Exceptions:
1. Non-uniform riser dimensions of aisle stairs complying with Section 8.24.11.2.
2. Consistently shaped winders, complying with Section 8.9.8, differing from
rectangular treads in the same stairway flight.
Where the bottom or top riser adjoins a sloping public way, walkway or driveway
having an established grade and serving as a landing, the bottom or top riser is
permitted to be reduced along the slope to less than 100 mm in height with the
variation in height of the bottom or top riser not to exceed one unit vertical in 12
units horizontal (8 percent slope) of stairway width. The no sings or leading edges
of treads at such non-uniform height risers shall have a distinctive marking stripe,
different from any other nosing marking provided on the stair flight. The
distinctive marking stripe shall be visible in descent of the stair and shall have a
slip-resistant surface. Marking stripes shall have a width of at least 25 mm but not
more than 50 mm.
Profile. The radius of curvature at the leading edge of the tread shall be not greater
than 12.7 mm. Beveling of no sings shall not exceed 12.7 mm. Risers shall be
solid and vertical or sloped from the under-side of the leading edge of the tread
above at an angle not more than 30 degrees (0.52 rad) from the vertical. The
leading edge (no sings) of treads shall project not more than 30 mm beyond the
tread below and all projections of the leading edges shall be of uniform size,
including the leading edge of the floor at the top of a flight.
Exceptions:
1. Solid risers are not required for stairways that are not required to comply with
Section 8.7.3, provided that the opening between treads does not permit the
passage of a sphere with a diameter of 100 mm.
2. Solid risers are not required for occupancies in Group I-3.
Stairway landings. There shall be a floor or landing at the top and bottom of each
stairway. The width of landings shall not be less than the width of stairways they
serve. Every landing shall have a minimum dimension measured in the direction of
travel equal to the width of the stairway. Such dimension need not exceed 1.2 m
where the stairway has a straight run.
2007
8/21
MEANS OF EGRESS
Exceptions:
1. Aisle stairs complying with Section 8.24.
2. Doors opening onto a landing shall not reduce the landing to less than one-half
the required width. When fully open, the door shall not project more than 180
mm into a landing.
8.9.5
8.9.5.1
8.9.5.2
Stairway construction. All stairways shall be built of materials consistent with
the types permitted for the type of construction of the building, except that wood
handrails shall be permitted for all types of construction.
Stairway walking surface. The walking surface of treads and landings of a
stairway shall not be sloped steeper than one unit vertical in 48 units horizontal (2
percent slope) in any direction. Stairway treads and landings shall have a solid
surface. Finish floor surfaces shall be securely attached.
Exception: In Group F, H and S occupancies, other than areas of parking
structures accessible to the public, openings in treads and landings shall not be
prohibited provided a sphere with a diameter of 29 mm cannot pass through the
opening.
Outdoor conditions. Outdoor stairways and outdoor approaches to stairways shall
be designed so that water will not accumulate on walking surfaces. In other than
occupancies in Group R-3, and occupancies in Group U that are accessory to an
occupancy in Group R-3, treads, platforms and landings that are part of exterior
stairways in climates subject to snow or ice shall be protected to prevent the
accumulation of same.
8.9.6
Vertical rise. A flight of stairs shall not have a vertical rise greater than 3.7 m
between floor levels or landings.
Exception: Aisle stairs complying with Section 8.24.
8.9.7
Circular stairways. Circular stairways shall have a minimum tread depth and a
maximum riser height in accordance with Section 8.9.3 and the smaller radius
shall not be less than twice the width of the stairway. The minimum tread depth
measured 300 mm from the narrower end of the tread shall not be less than 280
mm. The minimum tread depth at the narrow end shall not be less than 250 mm.
Exception: For occupancies in Group R-3, and within individual dwelling units in
occupancies in Group R-2, both as applicable in Section 8.1.1.
8.9.8
Winders. Winders are not permitted in means of egress stairways except within a
dwelling unit.
8.9.9
Spiral stairways. Spiral stairways are permitted to be used as a component in the
2
means of egress only within dwelling units or from a space not more than 23 m in
area and serving not more than five occupants, or from galleries, catwalks and
gridirons in accordance with Section 8.14.6.
A spiral stairway shall have a 190 mm minimum clear tread depth at a point 300
mm from the narrow edge. The risers shall be sufficient to provide a headroom of
2.0 m minimum, but riser height shall not be more than 240 mm. The minimum
stairway width shall be 660 mm.
8.9.10
Alternating tread devices. Alternating tread devices are limited to an element of a
means of egress in buildings of Groups F, H and S from a mezzanine not more
than 23 m2 in area and which serves not more than five occupants; in buildings of
SBC 801
2007
8/22
MEANS OF EGRESS
8.9.10.1
8.9.10.2
8.9.11
8.9.11.1
8.9.11.2
8.9.11.3
8.9.11.4
SBC 801
Group I-3 from a guard tower, observation station or control room not more than
23 m2 in area and for access to unoccupied roofs.
Handrails of alternating tread devices. Handrails shall be provided on both sides
of alternating tread devices and shall conform to Section 8.9.11.
Treads of alternating tread devices. Alternating tread devices shall have a
minimum projected tread of 125 mm, a minimum tread depth of 215 mm, a
minimum tread width of 180 mm and a maximum riser height of 240 mm. The
initial tread of the device shall begin at the same elevation as the platform, landing
or floor surface.
Exception: Alternating tread devices used as an element of a means of egress in
buildings from a mezzanine area not more than 23 m2 in area which serves not
more than five occupants shall have a minimum projected tread of 215 mm with a
minimum tread depth of 270 mm. The rise to the next alternating tread surface
should not be more than 200 mm.
Handrails. Stairways shall have handrails on each side. Handrails shall be
adequate in strength and attachment in accordance with Section 2.7 of SBC 301.
Handrails for ramps, where required by Section 8.10.8, shall comply with this
section.
Exceptions:
1. Aisle stairs complying with Section 8.24 provided with a center handrail need
not have additional handrails.
2. Stairways within dwelling units, spiral stairways and aisle stairs serving
seating only on one side are permitted to have a handrail on one side only.
3. Decks, patios and walkways that have a single change in elevation where the
landing depth on each side of the change of elevation is greater than what is
required for a landing do not require handrails.
4. In Group R-3 occupancies, a change in elevation consisting of a single riser at
an entrance or egress door does not require handrails.
5. Changes in room elevations of only one riser within dwelling units and
sleeping units in Group R-2 and R-3 occupancies do not require handrails.
Height. Handrail height, measured above stair tread nosings, or finish surface of
ramp slope, shall be uniform, not less than 860 mm and not more than 960 mm.
Intermediate handrails. Intermediate handrails are required so that all portions of
the stairway width required for egress capacity are within 750 mm of a handrail.
On monumental stairs, handrails shall be located along the most direct path of
egress travel.
Handrail graspability. Handrails with a circular cross section shall have an
outside diameter of at least 32 mm and not greater than 50 mm or shall provide
equivalent graspability. If the handrail is not circular, it shall have a perimeter
dimension of at least 100 mm and not greater than 160 mm with a maximum
cross-section dimension of 55 mm. Edges shall have a minimum radius of 0.25
mm.
Continuity. Handrail-gripping surfaces shall be continuous, without interruption
by newel posts or other obstructions.
Exceptions:
1. Handrails within dwelling units are permitted to be interrupted by a newel
post at a stair landing.
2. Within a dwelling unit, the use of a volute, turnout or starting easing is
allowed on the lowest tread.
3. Handrail brackets or balusters attached to the bottom surface of the handrail
2007
8/23
MEANS OF EGRESS
8.9.11.5
8.9.11.6
8.9.11.7
8.9.12
8.9.12.1
that do not project horizontally beyond the sides of the handrail within 38 mm
of the bottom of the handrail shall not be considered to be obstructions and
provided further that for each 13 mm of additional handrail perimeter
dimension above 100 mm, the vertical clearance dimension of 38 mm shall be
permitted to be reduced by 3 mm.
Handrail extensions. Handrails shall return to a wall, guard or the walking
surface or shall be continuous to the handrail of an adjacent stair flight. Where
handrails are not continuous between flights, the handrails shall extend
horizontally at least 300 mm beyond the top riser and continue to slope for the
depth of one tread beyond the bottom riser.
Exceptions:
1. Handrails within a dwelling unit that is not required to be accessible need
extend only from the top riser to the bottom riser.
2. Aisle handrails in Group A occupancies in accordance with Section 8.24.13.
Clearance. Clear space between a handrail and a wall or other surface shall be a
minimum of 38 mm. A handrail and a wall or other surface adjacent to the handrail
shall be free of any sharp or abrasive elements.
Stairway projections. Projections into the required width at each handrail shall
not exceed 114 mm at or below the handrail height. Projections into the required
width shall not be limited above the minimum headroom height required in
Section 8.9.2.
Stairway to roof. In buildings four or more stories in height above grade, one
stairway shall extend to the roof surface, unless the roof has a slope steeper than
four units vertical in 12 units horizontal (33 percent slope). In buildings without
an occupied roof, access to the roof from the top story shall be permitted to be by
an alternating tread device.
Roof access. Where a stairway is provided to a roof, access to the roof shall be
provided through a penthouse complying with Section 6.9.2 of SBC 201.
Exception: In buildings without an occupied roof, access to the roof shall be
permitted to be a roof hatch or trap door not less than 1.5 m2 in area and having a
minimum dimension of 600 mm.
SECTION 8.10
RAMPS
8.10.1
Scope. The provisions of this section shall apply to ramps used as a component of
a means of egress.
Exceptions:
1. Other than ramps that are part of the accessible routes providing access in
accordance with Sections 9.8.2.2 through 9.8.2.4.1 of the SBC 201, ramped
aisles within assembly rooms or spaces shall conform with the provisions in
Section 8.24.11.
2. Curb ramps shall comply with ICC A117.1.
3. Vehicle ramps in parking garages for pedestrian exit access shall not be
required to comply with Sections 8.10.3 through 8.10.9 when they are not an
accessible route serving accessible parking spaces, other required accessible
elements or part of an accessible means of egress.
8.10.2
Slope. Ramps used as part of a means of egress shall have a running slope not
steeper than one unit vertical in 12 units horizontal (8 percent slope). The slope of
SBC 801
2007
8/24
MEANS OF EGRESS
other ramps shall not be steeper than one unit vertical in eight units horizontal
(12.5 percent slope).
Exception: Aisle ramp slope in occupancies of Group A shall comply with
Section 8.24.11.
8.10.3
Cross slope. The slope measured perpendicular to the direction of travel of a ramp
shall not be steeper than one unit vertical in 48 units horizontal (2 percent slope).
8.10.4
Vertical rise. The rise for any ramp run shall be 750 mm maximum.
8.10.5
Minimum dimensions. The minimum dimensions of means of egress ramps shall
comply with Sections 8.10.5.1 through 8.10.5.3.
Width. The minimum width of a means of egress ramp shall not be less than that
required for corridors by Section 8.16.2. The clear width of a ramp and the clear
width between handrails, if provided, shall be 900 mm minimum.
Headroom. The minimum headroom in all parts of the means of egress ramp shall
not be less than 2.1 meters.
Restrictions. Means of egress ramps shall not reduce in width in the direction of
egress travel. Projections into the required ramp and landing width are prohibited.
Doors opening onto a landing shall not reduce the clear width to less than 1.1
meters.
8.10.5.1
8.10.5.2
8.10.5.3
8.10.6
8.10.6.1
8.10.6.2
8.10.6.3
8.10.6.4
8.10.6.5
8.10.7
8.10.7.1
8.10.7.2
SBC 801
Landings. Ramps shall have landings at the bottom and top of each ramp, points
of turning, entrance, exits and at doors. Landings shall comply with Sections
8.10.6.1 through 8.10.6.5.
Slope. Landings shall have a slope not steeper than one unit vertical in 48 units
horizontal (2 percent slope) in any direction. Changes in level are not permitted.
Width. The landing shall be at least as wide as the widest ramp run adjoining the
landing.
Length. The landing length shall be 1.5 m minimum.
Exception: Landings in non-accessible Group R-2 and R-3 individual dwelling
units, as applicable in SBC 100 are permitted to be 900 mm minimum.
Change in direction. Where changes in direction of travel occur at landings
provided between ramp runs, the landing shall be 1.5 m by 1.5 m minimum.
Exception: Landings in non-accessible Group R-2 and R-3 individual dwelling
units, as applicable in SBC 100 are permitted to be 900 mm by 900 mm minimum.
Doorways. Where doorways are located adjacent to a ramp landing, maneuvering
clearances required by ICC A117.1 are permitted to overlap the required landing
area.
Ramp construction. All ramps shall be built of materials consistent with the types
permitted for the type of construction of the building; except that wood handrails
shall be permitted for all types of construction. Ramps used as an exit shall
conform to the applicable requirements of Sections 8.19.1 and 8.19.1.1 through
8.19.1.3 for vertical exit enclosures.
Ramp surface. The surface of ramps shall be of slip-resistant materials that are
securely attached.
Outdoor conditions. Outdoor ramps and outdoor approaches to ramps shall be
designed so that water will not accumulate on walking surfaces. In other than
occupancies in Group R-3, and occupancies in Group U that are accessory to an
occupancy in Group R-3, surfaces and landings which are part of exterior ramps in
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climates subject to snow or ice shall be designed to minimize the accumulation of
same.
8.10.8
Handrails. Ramps with a rise greater than 150 mm shall have handrails on both
sides complying with Section 8.9.11.
8.10.9
Edge protection. Edge protection complying with Section 8.10.9.1 or 8.10.9.2
shall be provided on each side of ramp runs and at each side of ramp landings.
Exceptions:
1. Edge protection is not required on ramps not required to have handrails,
provided they have flared sides that comply with the ICC A117.1 curb ramp
provisions.
2. Edge protection is not required on the sides of ramp landings serving an
adjoining ramp run or stairway.
3. Edge protection is not required on the sides of ramp landings having a vertical
drop-off of not more than 13 mm within 250 mm horizontally of the required
landing area.
Railings. A rail shall be mounted below the handrail 430 mm to 480 mm above
the ramp or landing surface.
Curb or barrier. A curb or barrier shall be provided that prevents the passage of a
100 mm sphere, where any portion of the sphere is within 100 mm of the floor or
ground surface.
8.10.9.1
8.10.9.2
8.10.10
Guards. Guards shall be provided where required by Section 8.12 and shall be
constructed in accordance with Section 8.12.
SECTION 8.11
EXIT SIGNS
8.11.1
SBC 801
Where required. Exits and exit access doors shall be marked by an approved exit
bilingual sign (Arabic and English) readily visible from any direction of egress
travel. Access to exits shall be marked by readily visible exit signs in cases where
the exit or the path of egress travel is not immediately visible to the occupants.
Exit sign placement shall be such that no point in an exit access corridor is more
than 30.5 meters or the listed viewing distance for the sign, whichever is less, from
the nearest visible exit sign.
Exceptions:
1. Exit bilingual signs (Arabic and English) are not required in rooms or areas
which require only one exit or exit access.
2. Main exterior exit doors or gates which obviously and clearly are identifiable
as exits need not have exit signs where approved by the concerned building
official.
3. Exit signs are not required in occupancies in Group U and individual sleeping
units or dwelling units in Group R-1, R-2 or R-3.
4. Exit signs are not required in sleeping areas in occupancies in Group I-3.
5. In occupancies in Groups A-4 and A-5, exit signs are not required on the
seating side of vomitories or openings into seating areas where exit signs are
provided in the concourse that are readily apparent from the vomitories.
Egress lighting is provided to identify each vomitory or opening within the
seating area in an emergency.
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8.11.2
Illumination. Exit signs shall be internally or externally illuminated.
Exception: Tactile signs required by Section 8.11.3 need not be provided with
illumination.
8.11.3
Tactile exit signs. A tactile bilingual sign (Arabic and English) stating EXIT and
complying with ICC A117.1 shall be provided adjacent to each door to an egress
stairway, an exit passageway and the exit discharge.
8.11.4
Internally illuminated exit signs. Internally illuminated exit signs shall be listed
and labeled and shall be installed in accordance with the manufacturer’s
instructions, Section 5D.4 and SBC 401 exit signs shall be illuminated at all times.
8.11.5
Externally illuminated exit signs. Externally illuminated exit signs shall comply
with Sections 8.11.5.1 through 8.11.5.3.
Graphics. Every exit sign and directional exit sign shall have plainly legible
letters not less than 150 mm high with the principal strokes of the letters not less
than 19 mm wide. The word “EXIT” shall be bilingual (Arabic and English) and
have letters having a width not less than 50 mm wide except the letter “I,” and the
minimum spacing between letters shall not be less than 9.5 mm. Signs larger than
the minimum established in this section shall have letter widths, strokes and
spacing in proportion to their height. The word “EXIT” shall be in high contrast
with the background and shall be clearly discernible when the exit sign
illumination means is or is not energized. If an arrow is provided as part of the
exit sign, the construction shall be such that the arrow direction cannot be readily
changed.
Exit sign illumination. The face of an exit sign illuminated from an external
source shall have an intensity of not less than 54 lux.
Power source. Exit signs shall be illuminated at all times. To ensure continued
illumination for a duration of not less than 90 minutes in case of primary power
loss, the sign illumination means shall be connected to an emergency power
system provided from storage batteries, unit equipment or an on-site generator.
The installation of the emergency power system shall be in accordance with SBC
401.
Exception: Approved exit sign illumination means that provide continuous
illumination independent of external power sources for a duration of not less than
90 minutes, in case of primary power loss, are not required to be connected to an
emergency electrical system.
8.11.5.1
8.11.5.2
8.11.5.3
SECTION 8.12
GUARDS
8.12.1
SBC 801
Where required. Guards shall be located along open-sided walking surfaces,
mezzanines, industrial equipment platforms, stairways, ramps and landings which
are located more than 750 mm above the floor or grade below. Guards shall be
adequate in strength and attachment in accordance with SBC 301. Guards shall
also be located along glazed sides of stairways, ramps and landings that are located
more than 750 mm above the floor or grade below where the glazing provided
does not meet the strength and attachment requirements in SBC 301.
Exception: Guards are not required for the following locations:
1. On the loading side of loading docks or piers.
2. On the audience side of stages and raised platforms, including steps leading
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up to the stage and raised platforms.
3. On raised stage and platform floor areas such as runways, ramps and side
stages used for entertainment or presentations.
4. At vertical openings in the performance area of stages and platforms.
5. At elevated walking surfaces appurtenant to stages and platforms for access to
and utilization of special lighting or equipment.
6. Along vehicle service pits not accessible to the public.
7. In assembly seating where guards in accordance with Section 8.24.14 are
permitted and provided.
8.12.2
Height. Guards shall form a protective barrier not less than 1.1 meters high,
measured vertically above the leading edge of the tread, adjacent walking surface
or adjacent seatboard.
Exceptions:
1. For occupancies in Group R-3, and within individual dwelling units in
occupancies in Group R-2, both as applicable in SBC 100 guards whose top
rail also serves as a handrail shall have a height not less than 860 mm and not
more than 960 mm measured vertically from the leading edge of the stair tread
nosing.
2. The height in assembly seating areas shall be in accordance with Section
8.24.14.
8.12.3
Opening limitations. Open guards shall have balusters or ornamental patterns
such that a 100 mm sphere cannot pass through any opening up to a height of 860
mm. From a height of 860 mm to 1070 mm above the adjacent walking surfaces, a
sphere 200 mm in diameter shall not pass.
Exceptions:
1. The triangular openings formed by the riser, tread and bottom rail at the open
side of a stairway shall be of a maximum size such that a sphere of 150 mm in
diameter cannot pass through the opening.
2. At elevated walking surfaces for access to and use of electrical, mechanical or
plumbing systems or equipment, guards shall have balusters or be of solid
materials such that a sphere with a diameter of 530 mm cannot pass through
any opening.
3. In areas which are not open to the public within occupancies in Group I-3, F,
H or S, balusters, horizontal intermediate rails or other construction shall not
permit a sphere with a diameter of 530 mm to pass through any opening.
4. In assembly seating areas, guards at the end of aisles where they terminate at a
fascia of boxes, balconies and galleries shall have balusters or ornamental
patterns such that a 100 mm-diameter sphere cannot pass through any opening
up to a height of 660 mm. From a height of 660 mm to 1070 mm above the
adjacent walking surfaces, a sphere 200 mm in diameter shall not pass.
8.12.4
Screen porches. Porches and decks which are enclosed with insect screening shall
be provided with guards where the walking surface is located more than 750 mm
above the floor or grade below.
8.12.5
Mechanical equipment. Guards shall be provided where appliances, equipment,
fans or other components that require service are located within 3 meters of a roof
edge or open side of a walking surface and such edge or open side is located more
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than 750 mm above the floor, roof or grade below. The guard shall be constructed
so as to prevent the passage of a 530 mm-diameter sphere.
SECTION 8.13
EXIT ACCESS
8.13.1
General. The exit access arrangement shall comply with Sections 8.13 through
8.16 and the applicable provisions of Sections 8.3 through 8.12.
8.13.2
Egress through intervening spaces. Egress from a room or space shall not pass
through adjoining or intervening rooms or areas, except where such adjoining
rooms or areas are accessory to the area served; are not a high-hazard occupancy
and provide a discernible path of egress travel to an exit. Egress shall not pass
through kitchens, storage rooms, closets or spaces used for similar purposes. An
exit access shall not pass through a room that can be locked to prevent egress.
Means of egress from dwelling units or sleeping areas shall not lead through other
sleeping areas, toilet rooms or bathrooms.
Exceptions:
1. Means of egress are not prohibited through a kitchen area serving adjoining
rooms constituting part of the same dwelling unit or sleeping unit.
2. Means of egress are not prohibited through adjoining or intervening rooms or
spaces in a Group H occupancy when the adjoining or intervening rooms or
spaces are the same or a lesser hazard occupancy group.
Multiple tenants. Where more than one tenant occupies any one floor of a
building or structure, each tenant space, dwelling unit and sleeping unit shall be
provided with access to the required exits without passing through adjacent tenant
spaces, dwelling units and sleeping units.
Group I-2. Habitable rooms or suites in Group I-2 occupancies shall have an exit
access door leading directly to an exit access corridor.
Exceptions:
1. Rooms with exit doors opening directly to the outside at ground level.
2. Patient sleeping rooms are permitted to have one intervening room if the
intervening room is not used as an exit access for more than eight patient beds.
3. Special nursing suites are permitted to have one intervening room where the
arrangement allows for direct and constant visual supervision by nursing
personnel.
4. For rooms other than patient sleeping rooms, suites of rooms are permitted to
have one intervening room if the travel distance within the suite to the exit
access door is not greater than 30.5 m and are permitted to have two
intervening rooms where the travel distance within the suite to the exit access
door is not greater than 15.3 m.
2
Suites of sleeping rooms shall not exceed 465 m . Suites of rooms, other than
2
patient sleeping rooms, shall not exceed 929 m . Any patient sleeping room, or any
2
suite that includes patient sleeping rooms, of more than 93 m shall have at least
two exit access doors remotely located from each other. Any room or suite of
rooms, other than patient sleeping rooms, of more than 232 m2 shall have at least
two access doors remotely located from each other. The travel distance between
any point in a Group I-2 occupancy and an exit access door in the room shall not
exceed 15.3 m. The travel distance between any point in a suite of sleeping rooms
and an exit access door of that suite shall not exceed 30.5 m.
8.13.2.1
8.13.2.2
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8.13.3
Common path of egress travel. In occupancies other than Groups H-1, H-2 and
H-3, the common path of egress travel shall not exceed 23 m. In occupancies in
Groups H-1, H-2, and H-3, the common path of egress travel shall not exceed
7.6 m.
Exceptions:
1. The length of a common path of egress travel in an occupancy in Groups B, F
and S shall not be more than 30.5 m, provided that the building is equipped
throughout with an automatic sprinkler system installed in accordance with
Section 7.3.3.1.1.
2. Where a tenant space in an occupancy in Groups B, S and U has an occupant
load of not more than 30, the length of a common path of egress travel shall
not be more than 30.5 m.
3. The length of a common path of egress travel in occupancies in Group I-3 shall
not be more than 30.5 m.
8.13.4
Aisles. Aisles serving as a portion of the exit access in the means of egress system
shall comply with the requirements of this section. Aisles shall be provided from
all occupied portions of the exit access which contain seats, tables, furnishings,
displays and similar fixtures or equipment. Aisles serving assembly areas, other
than seating at tables, shall comply with Section 8.24. Aisles serving reviewing
stands, grandstands and bleachers shall also comply with Section 8.24.
The required width of aisles shall be unobstructed.
Exception: Doors, when fully opened, and handrails shall not reduce the required
width by more than 180 mm. Doors in any position shall not reduce the required
width by more than one-half. Other nonstructural projections such as trim and
similar decorative features are permitted to project into the required width 38 mm
from each side.
Groups B and M. In Group B and M occupancies, the minimum clear aisle width
shall be determined by Section 8.5.1 for the occupant load served, but shall not be
less than 900 mm.
Exception: Nonpublic aisles serving less than 50 people, and not required to be
accessible by Chapter 9 need not exceed 710 mm in width.
Seating at tables. Where seating is located at a table or counter and is adjacent to
an aisle or aisle access way, the measurement of required clear width of the aisle
or aisle accessway shall be made to a line 480 mm away from and parallel to the
edge of the table or counter. The 480 mm distance shall be measured perpendicular
to the side of the table or counter. In the case of other side boundaries for aisle or
aisle access ways, the clear width shall be measured to walls, edges of seating and
tread edges, except that handrail projections are permitted.
Exception: Where tables or counters are served by fixed seats, the width of the
aisle accessway shall be measured from the back of the seat.
Aisle accessway for tables and seating. Aisle accessways serving arrangements
of seating at tables or counters shall have sufficient clear width to conform to the
capacity requirements of Section 8.5.1 but shall not have less than the appropriate
minimum clear width specified in Section 8.13.4.1.
Table and seating accessway width. Aisle accessways shall provide a minimum
of 300 mm of width plus 12.7 mm of width for each additional 0.3 m, or fraction
thereof, beyond 3.7 m of aisle accessway length measured from the center of the
seat farthest from an aisle.
Exception: Portions of an aisle accessway having a length not exceeding 1.8 m
and used by a total of not more than four persons.
8.13.4.1
8.13.4.2
8.13.4.2.1
8.13.4.2.2
SBC 801
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8.13.4.2.3
Table and seating aisle accessway length. The length of travel along the aisle
accessway shall not exceed 9.1 m from any seat to the point where a person has a
choice of two or more paths of