Dave Molloy

More than 80% of homes in the U.S. have asphalt-shingle roofs. Asphalt shingles are popular for several reasons: for the money, they offer good value to homeowners; there's a wide, good-better-best range of materials to choose from; and of all prevalent roofing materials, asphalt shingles are easiest to install.

But you still have to do it right. In this article, we'll cover the essentials of roofing and reroofing with asphalt shingles, including techniques and details for tear-off, layout, underlayment, flashing, and shingle installation.

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