Carpenter Red Seal Exam Prep · Question
A carpenter is constructing a gambrel roof. Which of the following describes the typical roof framing members used to achieve the characteristic double-slope profile on each side?
A gambrel roof typically uses a combination of upper, shallower-sloped rafters and lower, steeper-sloped rafters, often supported by knee walls within the attic
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Question: A carpenter is constructing a gambrel roof. Which of the following describes the typical roof framing members used to achieve the characteristic double-slope profile on each side?
Answer options:
- Common rafters for the upper slope and cripple rafters for the lower slope.
- Hip rafters and valley rafters to support both slopes. ✅ A combination of upper and lower rafters with collar ties or knee walls for support.
- Trusses specifically designed with a high heel and a cantilevered eave.
Correct answer: A combination of upper and lower rafters with collar ties or knee walls for support.
Explanation: A gambrel roof typically uses a combination of upper, shallower-sloped rafters and lower, steeper-sloped rafters, often supported by knee walls within the attic space or collar ties, to create its distinctive two-part slope. Cripple rafters and hip/valley rafters are not characteristic of a gambrel roof's primary slope definition.
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