Carpenter Red Seal Exam Prep · Question
What is the primary concern if an air barrier is discontinuous or poorly sealed?
A discontinuous air barrier allows air to move freely through the wall assembly, leading to convective heat transfer which significantly reduces the effective R
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Question: What is the primary concern if an air barrier is discontinuous or poorly sealed?
Answer options:
- Increased risk of hydrostatic pressure on the foundation. ✅ Reduced R-value of the insulation due to convective heat transfer.
- Accelerated UV degradation of exterior cladding materials.
- Compromised structural integrity of framing members.
Correct answer: Reduced R-value of the insulation due to convective heat transfer.
Explanation: A discontinuous air barrier allows air to move freely through the wall assembly, leading to convective heat transfer which significantly reduces the effective R-value of the insulation and increases heating/cooling costs.
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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
- According to the National Building Code of Canada (NBC) 2020, what is the primary consideration for the requir
- Two offset stakes are driven at 2.0 m from the proposed edge of a concrete slab. The first stake is marked 'Cu
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