35 Questions
What is the maximum dimension allowed in a concealed space with exposed construction materials that have a flame-spread rating more than 25?
20 m
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 construction conforming to Article 3.1.11.7.
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.
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?
600 m2
What is the purpose of fire blocks in crawl spaces?
To separate the crawl space into compartments.
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?
Semi-rigid fibre insulation board produced from glass, rock or slag.
Where is a firewall permitted to terminate on the underside of a reinforced concrete roof slab?
On both sides of the firewall
When is a firewall permitted to commence at the floor assembly immediately above the storage garage?
When the storage garage is located in the basement
How high should a parapet be for a firewall required to have a fire-resistance rating not less than 2 h?
150 mm
When is a firewall not required to extend above the upper roof surface to form a parapet?
When the difference in elevation between the roofs is more than 3 m
What is the maximum aggregate width of openings in a firewall?
25% of the entire length of the firewall
What are the requirements for exposure protection for adjacent walls?
Article 3.2.3.14.
According to the National Building Code of Canada 2015, what is the maximum angle at which two buildings can meet at a firewall?
135°
In accordance with the National Building Code of Canada 2015, where is combustible material permitted to extend across a firewall?
Across a roof above the 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?
Windows
In accordance with the National Building Code of Canada 2015, what is the maximum horizontal dimension for fire blocks in wall assemblies?
20 m
According to the National Building Code of Canada 2015, when are fire blocks not required in a wall assembly?
All of the above
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?
2 m2
How many tests are required to determine the flame-spread rating and smoke developed classification of a material, assembly, or structural member?
Three tests
When is Appendix D used to assign a flame-spread rating and smoke developed classification?
When there are less than three tests conducted
What is considered as interior finish material?
All of the above
What is the maximum flame-spread rating for interior wall and ceiling finishes in sprinklered Group B occupancies?
75
When are doors in Group A, Division 1 occupancies exempt from conforming to the flame-spread rating requirement?
When they have a flame-spread rating not more than 200
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?
25%
What is the maximum flame-spread rating for interior wall and ceiling finishes in a bathroom within a suite of residential occupancy?
200
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.
True
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.
True
Appendix D can be used to assign a flame-spread rating and smoke developed classification to a material, assembly, or structural member.
True
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.
True
Interior finish material includes doors, windows, and trim, in addition to cladding, surfacing, and carpet material.
True
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.
True
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.
True
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.
True
The flame-spread rating of interior wall and ceiling finishes for a bathroom within a residential suite must not be more than 200.
True
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.
True
Test your knowledge on flame-spread ratings and construction requirements for concealed spaces in building exteriors. Take this quiz to learn about separating construction materials and fire safety regulations.
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