Is Your Roof Too Heavy? The Hidden Structural Danger of “Layering” Shingles
A new roof can make your home look better, protect it from leaks and boost curb appeal. But what happens when the old shingles are not removed first? That shortcut is called layering shingles, also known as a shingle-over. It means a roofing crew installs new asphalt shingles directly over the existing roof instead of …
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