Brick house with a gray roof, dark green shutters, and Halloween decorations. The roof shows signs of algae growth, as discussed in the Washington Post article on roof algae.

Washington Post Article on Roof Algae

Roof Cleaning Blog /

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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