Granules are not just there to make your house look good. They serve several vital structural functions:
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Asphalt degrades rapidly when exposed to raw sunlight. Granules act as a permanent "sunscreen" for the underlying bitumen. Granules are not just there to make your house look good
Many modern granules are coated with copper to stop unsightly black algae streaks from forming. shingle granules where to buy
They shed water efficiently and protect the shingle from hail impact.
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