shaaz456
Joined: 03 Jul 2012 Posts: 2
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Posted: Tue Jul 03, 2012 9:19 am Post subject: Low Pressure Roof Washing |
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Black streaks on asphalt shingles is known as roof algae. It will only get worse if not taken care of. Algae likes to thrive on the north side roofs where the proper amount of shade is present. It feeds on the crushed limestone that is used in asphalt shingles. _________________ window washer |
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