Roofing felts, or ply sheets, are used to cover the roof. These materials are usually reinforced with an organic or glass-fiber mat, and bitumen, either asphalt or tar, is placed between the two sheets. Unlike asphalt or coal tar, which must be heated before spreading, cold-applied adhesives are applied without heating. For most projects, a single layer of felt will suffice. However, heavier projects will benefit from two or more layers of roofing felt. It is best to check out Top 10 Best Sacramento California Roofers to determine your roofing…
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