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Can You Install Metal Roofing Over Shingles?
Can you avoid tearing off your old asphalt shingle roof by putting a steel roof over it? Maybe. Most codes now allow no more than two layers of roofing before requiring a complete tear-off. So, if ...
Add Yahoo as a preferred source to see more of our stories on Google. Check out CR’s top-rated 3-tab, architectural, and multilayered architectural asphalt shingles CR’s tests simulate the effects of ...
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