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Roof Systems Overview AIA Test

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7) Which of the following is a disadvantage a built-up roof (BUR)?
From Slide #8

A. Old technology that has not evolved with the changes in the construction industry, requiring more labor to install
B. The multi-ply protection provides added waterproofing and strength
C. There are many products available for maintenance and repairs
D. When coal tar is used it provides thermoplasticity