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Roof Systems Overview AIA Test

Please click the correct answer below to advance to the next question.

1) The built-up roof (BUR) consists of
From Slide #3

A. A rubber material that is laid as one ply and typically 45-60 mils thick
B. Alternating plies of bitumen and felts
C. Polyurethane foam that is sprayed into place
D. A system that has the insulation on top of the waterproofing membrane