Carpenter Red Seal Exam Prep · Question
According to the National Building Code of Canada, which factor is most critical in determining the required permeability of a vapour barrier?
The climate zone, specifically related to heating degree days, is critical for determining the required performance (permeability) of a vapour barrier. Colder c
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Question: According to the National Building Code of Canada, which factor is most critical in determining the required permeability of a vapour barrier?
Answer options:
- The typical wind speed at the construction site.
- The type of exterior cladding used. ✅ The climate zone (e.g., heating degree days) where the building is located.
- The structural framing material (wood or steel).
Correct answer: The climate zone (e.g., heating degree days) where the building is located.
Explanation: The climate zone, specifically related to heating degree days, is critical for determining the required performance (permeability) of a vapour barrier. Colder climates generally require more restrictive vapour barriers to prevent moisture condensation within walls.
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- When interpreting a foundation plan, a dashed line with 'P. WALL' typically represents which of the following?
- A site plan shows contour lines with an interval of 0.5 m. If two adjacent contour lines are labelled 124.0 m
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