Building contractors are always looking for installation methods that will provide them with savings on labor and materials expenses. Here are some important answers to frequently asked questions.
1. Should I install a metal roof directly over-top of an asphalt shingle roof? No. Why?
Premature Failure: Metal has a high degree of thermal expansion and contraction. As the roof heats up and cools down, it moves along both its length and its width. Placed directly against the granules on asphalt
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