ARE 5.0 PPD Practice Questions - ARE 5.0 Project Planning & Design Exam

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An office building in ASHRAE Climate Zone 4 (mixed-humid) has a continuous insulation requirement on its exterior walls. According to ASHRAE 90.1-2019, the minimum continuous insulation R-value for steel-framed walls is approximately R-7.5. What is the PRIMARY reason continuous insulation is specified rather than only cavity insulation?

It is cheaper than cavity insulation It mitigates thermal bridging at framing members It provides better fire resistance It eliminates the need for a vapor retarder

Correct Answer:

It mitigates thermal bridging at framing members

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