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Monthly Archives: June 2019

Features and Benefits of GAF’s StainGuard Plus™

Features and Benefits of GAF’s StainGuard Plus™

Scientifically known as Gloeocapsa magma, you know it as blue-green algae. To the average homeowner, however, they’re nothing but an eyesore on their roofs. Microscopic yet noticeable, these dark, unsightly microbes collectively leave black or brown streaks across the surface. And, while they don’t necessarily pose any structural threat to the roof, their appearance casts… Continue Reading

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