• How Are Roofing Shingles Made?
  Most roofing shingles are made up of asphalt, with some synthetic, wood and aluminum shingles making up the rest of the shingles found in the United States. Asphalt roofing shingles are made using a foundation as a base, which is either organic felt or fiberglass.
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• How Are Roofing Shingles Made?
  Most roofing shingles are made up of asphalt, with some synthetic, wood and aluminum shingles making up the rest of the shingles found in the United States. Asphalt roofing shingles are made using a foundation as a base, which is either organic felt or fiberglass.
  in Public bookmarks with roofing-shingles by 2 users

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