7/30/2011 6:29:00 AM by Kleen llc roof & Exterior Cleaning
Your roof has a common algae growing on it called gloecapsa magma which typically grow on the north side of the roof or where there are low overhanging branches or an abundance of shade. Once the algae is noticeable, it will quickly spread throughout your roof's surface, first showing up as black streaks, then over take the whole roof. Giving your roof a dirty, old look. After algae has begun to appear and spread moss will follow. Moss is harmful since it actually grows roots into the substrate of the shingle, casing granules to loosen and fall off. The granules are the protection part of the shingle. They keep rain from soaking into the shingle, reflect the UV rays of the sun. Removing the algae from your roofs surface is the best and safest precautionary measure you can take in stopping future moss damage and ensuring the longevity of your asphalt or fiberglass roof.
Call Great Lakes Roof & Exterior Cleaning today for a free quote on protecting your roof.