SC Roofing Practice Questions - South Carolina Roofing Contractor Examination Exam

In a low-slope roof over a conditioned building in a cold or mixed climate, where is a vapor retarder placed?

On top of the membrane as a sacrificial traffic sheet Between the flood coat and the gravel On the warm side of the insulation, typically on or just above the deck, so interior moisture cannot reach the cold insulation Vapor retarders are never used under single-ply membranes

Correct Answer:

On the warm side of the insulation, typically on or just above the deck, so interior moisture cannot reach the cold insulation

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