40 Questions
Which one of the following is the correct overlap requirement for lapped bevel siding?
25 mm
Which grade of western cedar shakes is required for compliance?
No. 1
Which grade of eastern white cedar shingles is allowed for the lower course of double course applications?
C grade
What is the required width for shingles and shakes?
Not less than 1 mm
Which CSA standard is applicable for eastern white cedar shingles?
CSA O118.2
According to the National Building Code of Canada 2015, which of the following materials is NOT acceptable for sheathing when attaching vertical lumber and stucco lath or reinforcing?
7.5 mm plywood
According to the National Building Code of Canada 2015, what is the minimum thickness required for drop, rustic, novelty, lapped board, and vertical wood siding?
14.3 mm
According to the National Building Code of Canada 2015, what is the maximum width allowed for bevel siding?
286 mm
According to the National Building Code of Canada 2015, what is the minimum thickness required at the butt for bevel siding wider than 184 mm?
14.3 mm
According to the National Building Code of Canada 2015, what is the maximum spacing allowed for nails or staples when attaching wood trim?
600 mm
According to the National Building Code of Canada 2015, what is the required clearance between finished ground and cladding that is adversely affected by moisture?
200 mm
Which standard do sheathing membranes need to conform to?
CAN/CGSB-51.32-M
When is a separate sheathing membrane not required if exterior insulating sheathing is installed?
When it is both non-wood-based rigid exterior insulating sheathing and has an integral sheathing membrane
How many layers of sheathing membrane should be applied beneath the cladding if no sheathing is used?
2
When is sheathing membrane permitted to be omitted beneath cladding?
When the joints in the cladding are formed to prevent the passage of wind and rain
Which one of the following materials is considered to meet the requirements for cladding, according to the text?
Plywood
Which one of the following is NOT a requirement for the application of cladding, according to the text?
Locked-seam joints
Which one of the following materials is NOT listed as an option for flashing, according to the text?
Brick
Which one of the following is NOT a requirement for the installation of flashing, according to the text?
Installation at vertical joints
Which one of the following statements about sealants is NOT true, according to the text?
Sealant should be a hardening type suitable for exterior use
Which types of cladding materials are allowed to be installed on wood-frame walls exposed to precipitation according to the National Building Code of Canada 2015?
Lumber, wood shingles, shakes, fibre-cement shingles, planks and sheets, plywood, OSB, waferboard, hardboard, vinyl, aluminum or steel
Which cladding assembly is required when stucco is installed on wood-frame or masonry walls exposed to precipitation according to the National Building Code of Canada 2015?
Subsections 9.27.2. to 9.27.5., and Section 9.28.
Which cladding assembly is required when masonry serves as cladding on wood-frame or masonry walls exposed to precipitation according to the National Building Code of Canada 2015?
Subsections 9.27.2. to 9.27.4., and Section 9.20.
Which cladding assembly is required when asphalt shingles are installed on wood-frame walls exposed to precipitation according to the National Building Code of Canada 2015?
Subsections 9.26.7. and 9.27.2. to 9.27.4.
Which cladding assembly is required when an exterior insulation finish system is installed on wood-frame, masonry, cold-formed steel stud or cast-in-place concrete walls exposed to precipitation according to the National Building Code of Canada 2015?
Subsections 9.25.5., 9.27.2. to 9.27.4., and 9.27.13.
According to the National Building Code of Canada 2015, how should exterior walls be designed and constructed?
To minimize the ingress of precipitation into the assembly and prevent the ingress of precipitation into interior space
What is required for a cladding assembly to be deemed to have a capillary break?
A drained and vented air space, an open drainage material, and a loosely fastened cladding with clear air space behind each component
In exterior walls exposed to precipitation, when is a capillary break not required in the first and second planes of protection?
When it can be shown that omitting the capillary break will not adversely affect the performance of the building assemblies
What should the first plane of protection in a cladding assembly consist of?
Cladding with appropriate trim, accessory pieces, and fasteners
When is an exterior cladding assembly required to have a capillary break?
When the number of degree-days is less than 3400 and the moisture index is greater than 0.90, or when the number of degree-days is 3400 or more and the moisture index is greater than 1.00
True or false: Lumber siding joints shall prevent water from entering by the use of lapped or matched joints or by vertical wood battens.
True
True or false: Siding shall overlap not less than 1 mm per 16 mm width of lumber.
True
True or false: Matched siding requires a minimum overlap of 9.5 mm.
True
True or false: Lapped bevel siding requires a minimum overlap of 25 mm.
True
True or false: Vertical battens require a minimum overlap of 12 mm.
True
True or false: Wood shingles and shakes must conform to CSA O118.1 or CSA O118.2.
True
True or false: Western cedar shakes must be at least No. 1 or Handsplit grade.
True
True or false: Western cedar shingles must be at least No. 2 grade.
True
True or false: Eastern white cedar shingles must be at least B (clear) grade.
True
True or false: C grade is allowed for the lower course of double course applications of eastern white cedar shingles.
True
Test your knowledge on cladding requirements for plywood, hardboard, OSB, waferboard, and fibre cement. Learn about proper installation techniques and how to ensure weathertight joints.
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