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Questions and Answers
What is the maximum dimension allowed in a concealed space with exposed construction materials that have a flame-spread rating more than 25?
What is the maximum dimension allowed in a concealed space with exposed construction materials that have a flame-spread rating more than 25?
- 35 m
- 25 m
- 30 m
- 20 m (correct)
In buildings conforming to Article 3.2.2.50. or 3.2.2.58., how should horizontal concealed spaces within a floor assembly or roof assembly of combustible construction be separated?
In buildings conforming to Article 3.2.2.50. or 3.2.2.58., how should horizontal concealed spaces within a floor assembly or roof assembly of combustible construction be separated?
- By sprinklers.
- By fire blocks.
- By construction conforming to Article 3.1.11.7. (correct)
- By noncombustible insulation.
In a building required to be of noncombustible construction, which materials do not need to be tested in conformance with the standard fire exposure test?
In a building required to be of noncombustible construction, which materials do not need to be tested in conformance with the standard fire exposure test?
- Wood nailing elements. (correct)
- Structural composite lumber products.
- Phenolic bonded plywood and oriented strandboard.
- Gypsum board and sheet steel.
What is the maximum area allowed for compartments in a crawl space that is not considered as a basement and does not have sprinklers installed?
What is the maximum area allowed for compartments in a crawl space that is not considered as a basement and does not have sprinklers installed?
What is the purpose of fire blocks in crawl spaces?
What is the purpose of fire blocks in crawl spaces?
What type of insulation board is permitted to be used to block the vertical space in a double stud wall assembly in buildings permitted to be of combustible construction?
What type of insulation board is permitted to be used to block the vertical space in a double stud wall assembly in buildings permitted to be of combustible construction?
Where is a firewall permitted to terminate on the underside of a reinforced concrete roof slab?
Where is a firewall permitted to terminate on the underside of a reinforced concrete roof slab?
When is a firewall permitted to commence at the floor assembly immediately above the storage garage?
When is a firewall permitted to commence at the floor assembly immediately above the storage garage?
How high should a parapet be for a firewall required to have a fire-resistance rating not less than 2 h?
How high should a parapet be for a firewall required to have a fire-resistance rating not less than 2 h?
When is a firewall not required to extend above the upper roof surface to form a parapet?
When is a firewall not required to extend above the upper roof surface to form a parapet?
What is the maximum aggregate width of openings in a firewall?
What is the maximum aggregate width of openings in a firewall?
What are the requirements for exposure protection for adjacent walls?
What are the requirements for exposure protection for adjacent walls?
According to the National Building Code of Canada 2015, what is the maximum angle at which two buildings can meet at a firewall?
According to the National Building Code of Canada 2015, what is the maximum angle at which two buildings can meet at a firewall?
In accordance with the National Building Code of Canada 2015, where is combustible material permitted to extend across a firewall?
In accordance with the National Building Code of Canada 2015, where is combustible material permitted to extend across a firewall?
According to the National Building Code of Canada 2015, which of the following combustible projections are not permitted on the exterior of a building that is separated by a firewall?
According to the National Building Code of Canada 2015, which of the following combustible projections are not permitted on the exterior of a building that is separated by a firewall?
In accordance with the National Building Code of Canada 2015, what is the maximum horizontal dimension for fire blocks in wall assemblies?
In accordance with the National Building Code of Canada 2015, what is the maximum horizontal dimension for fire blocks in wall assemblies?
According to the National Building Code of Canada 2015, when are fire blocks not required in a wall assembly?
According to the National Building Code of Canada 2015, when are fire blocks not required in a wall assembly?
According to the National Building Code of Canada 2015, what is the maximum area of a concealed space in a building required to be of noncombustible construction?
According to the National Building Code of Canada 2015, what is the maximum area of a concealed space in a building required to be of noncombustible construction?
How many tests are required to determine the flame-spread rating and smoke developed classification of a material, assembly, or structural member?
How many tests are required to determine the flame-spread rating and smoke developed classification of a material, assembly, or structural member?
When is Appendix D used to assign a flame-spread rating and smoke developed classification?
When is Appendix D used to assign a flame-spread rating and smoke developed classification?
What is considered as interior finish material?
What is considered as interior finish material?
What is the maximum flame-spread rating for interior wall and ceiling finishes in sprinklered Group B occupancies?
What is the maximum flame-spread rating for interior wall and ceiling finishes in sprinklered Group B occupancies?
When are doors in Group A, Division 1 occupancies exempt from conforming to the flame-spread rating requirement?
When are doors in Group A, Division 1 occupancies exempt from conforming to the flame-spread rating requirement?
What percentage of the total wall area of lobbies described in Sentence 3.4.4.2.(2) is permitted to have a flame-spread rating not more than 150?
What percentage of the total wall area of lobbies described in Sentence 3.4.4.2.(2) is permitted to have a flame-spread rating not more than 150?
What is the maximum flame-spread rating for interior wall and ceiling finishes in a bathroom within a suite of residential occupancy?
What is the maximum flame-spread rating for interior wall and ceiling finishes in a bathroom within a suite of residential occupancy?
According to the National Building Code of Canada 2015, the flame-spread rating and smoke developed classification of a material, assembly, or structural member must be determined on the basis of at least three tests conducted in conformance with CAN/ULC-S102.
According to the National Building Code of Canada 2015, the flame-spread rating and smoke developed classification of a material, assembly, or structural member must be determined on the basis of at least three tests conducted in conformance with CAN/ULC-S102.
If a material or assembly is designed for use in a relatively horizontal position with only its top surface exposed to air, it can be tested in conformance with CAN/ULC-S102.2 instead of CAN/ULC-S102.
If a material or assembly is designed for use in a relatively horizontal position with only its top surface exposed to air, it can be tested in conformance with CAN/ULC-S102.2 instead of CAN/ULC-S102.
Appendix D can be used to assign a flame-spread rating and smoke developed classification to a material, assembly, or structural member.
Appendix D can be used to assign a flame-spread rating and smoke developed classification to a material, assembly, or structural member.
Interior finishes, furnishings, and decorative materials must conform to Section 2.3 of Division B of the National Building Code of Canada 2015, except as otherwise provided.
Interior finishes, furnishings, and decorative materials must conform to Section 2.3 of Division B of the National Building Code of Canada 2015, except as otherwise provided.
Interior finish material includes doors, windows, and trim, in addition to cladding, surfacing, and carpet material.
Interior finish material includes doors, windows, and trim, in addition to cladding, surfacing, and carpet material.
The flame-spread rating of interior wall and ceiling finishes, including glazing and skylights, must not be more than 150 according to the National Building Code of Canada 2015.
The flame-spread rating of interior wall and ceiling finishes, including glazing and skylights, must not be more than 150 according to the National Building Code of Canada 2015.
Doors, other than those in Group A, Division 1 occupancies, are not required to conform to the maximum flame-spread rating of 150, as long as their flame-spread rating is not more than 200.
Doors, other than those in Group A, Division 1 occupancies, are not required to conform to the maximum flame-spread rating of 150, as long as their flame-spread rating is not more than 200.
Up to 10% of the total wall area and ceiling area of a finish with a flame-spread rating less than 150 can have a flame-spread rating not more than 150, except for lobbies where up to 25% of the total wall area can have a flame-spread rating not more than 150.
Up to 10% of the total wall area and ceiling area of a finish with a flame-spread rating less than 150 can have a flame-spread rating not more than 150, except for lobbies where up to 25% of the total wall area can have a flame-spread rating not more than 150.
The flame-spread rating of interior wall and ceiling finishes for a bathroom within a residential suite must not be more than 200.
The flame-spread rating of interior wall and ceiling finishes for a bathroom within a residential suite must not be more than 200.
Combustible light diffusers and lenses in all occupancies, except Group A, Division 1, are permitted to have a flame-spread rating not more than 250 and a smoke developed classification not more than 600.
Combustible light diffusers and lenses in all occupancies, except Group A, Division 1, are permitted to have a flame-spread rating not more than 250 and a smoke developed classification not more than 600.
