This Roof Cleaning on Long Island was done by the experts at Dirty-Roof.com. These shingles were infested with algae and lichen creating a eyesore in the community. The homeowner wanted the roof cleaned without the use of a damaging pressure washer. As you can see in the pics the roof looks like new again and
This article from the Washing Post does a great job of explaining what this algae is and how it affects your roof. There is an excellent illustration that you might find helpful as well as it shows the organism and how it affects your roof in great detail. If you have an algae problem
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