Considering a flat roof extension for your home? Forget what you've heard, this is a great way to add space and value to your ...
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Can You Install Metal Roofing Over Shingles?
Second, the frame creates a flat and straight surface even when the shingles are badly curled or the roof ridge is bowed.
Complies with DIN 18234 without additional measures (prevention of fire expansion on the flat roof), resistance to external fire exposure from flying sparks and radiant heat with classification ...