30 Questions
According to the National Building Code of Canada, what is the minimum grade for Western cedar shingles?
No. 2 grade
What is the required spacing between shingles according to the National Building Code of Canada?
6 mm
According to the National Building Code of Canada, what is the minimum length of wood shingles?
400 mm
What is the maximum width of wood shingles according to the National Building Code of Canada?
350 mm
According to the National Building Code of Canada, how much should the joints in adjacent courses be offset?
40 mm
According to the National Building Code of Canada 2015, what is the minimum slope required for asphalt shingles in a normal application?
1 in 6
According to the National Building Code of Canada 2015, what materials can be used for sheet metal flashing?
0.35 mm thick zinc
According to the National Building Code of Canada 2015, what is the minimum slope required for closed valleys when using rigid shingles?
1 in 1.2
According to the National Building Code of Canada 2015, how wide should the bottom layer of roofing be in a valley flashing?
457 mm
According to the National Building Code of Canada 2015, what is the required width of the top layer of roofing in a valley flashing?
914 mm
Which type of underlay is required for wood shakes?
Type M mineral-surfaced roll roofing
How much should the underlay overlap the eave protection?
100 mm
How many nails or staples should be used to fasten shingles?
4
How should shingle tabs be secured?
All of the above
How wide should the first course of shingles be secured with cement along the eaves?
Equal to the shingle exposure plus 100 mm
According to the National Building Code of Canada 2015, what is the definition of a roof?
A sloped or near-horizontal assembly that protects the spaces beneath it
What is the purpose of roofing, as defined in the National Building Code of Canada 2015?
To prevent the ingress of water and moisture into building assemblies and occupied space
According to the National Building Code of Canada 2015, what can be used as alternative installation methods for asphalt shingle applications not described in the code?
Methods described in both CAN3-A123.51-M and CAN3-A123.52-M
What materials used for the preparation of the substrate for roofing must conform to a specific standard, as per the National Building Code of Canada 2015?
Sheathing membranes
According to the National Building Code of Canada 2015, how can compliance with the required protection of roofs be demonstrated?
By conforming to Part 5
Which standard applies to Lap Cement Used with Asphalt Roll Roofing, Non-Fibered, Asbestos-Fibered, and Non-Asbestos-Fibered?
ASTM D 3019
Which standard is used for Asphalt Roof Coatings that are Asbestos-Free?
ASTM D 4479/D 4479M
Which standard applies to Membrane, Modified, Bituminous, Prefabricated, and Reinforced for Roofing?
CGSB 37-GP-56M
Which standard is used for Hot-Applied, Rubberized Asphalt for Roofing and Waterproofing?
CAN/CGSB-37.50-M
Which standard applies to Polyvinyl Chloride Roofing and Waterproofing Membrane?
CAN/CGSB-37.54
Which type of flashing is required at the intersection of shingle roofs and walls clad with other than masonry?
Flashing that extends up the wall not less than 75 mm behind the sheathing paper
Which material can be used as eave protection on shingle, shake or tile roofs?
Self-sealing composite membranes consisting of modified bituminous coated material
Which type of underlay is required when used beneath shingles?
Breather type underlay
What is the minimum height that the flashing on the roof slope should extend up at the intersection of shingle roofs and walls clad with other than masonry?
150 mm
What is the minimum width required for installing chimney saddles on a sloping roof?
750 mm
Test your knowledge on the intersection of shingle roofs and walls in construction. Learn about the proper protection and flashing requirements for non-masonry walls.
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