RI Roofing Contractor Practice Questions - Rhode Island Commercial Roofing Contractor Exam

In a built-up roofing (BUR) system, what does the term 'ply' refer to?

A layer of insulation board A layer of reinforcing felt or fabric embedded in bitumen A coat of reflective roof coating A layer of gravel ballast

Correct Answer:

A layer of reinforcing felt or fabric embedded in bitumen

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