Fungus Roof Shingles

Some black stains on asphalt roof shingles are caused by a black algae sometimes misnamed as a black fungus or even a mildew such as that shown in the photograph here.

Fungus roof shingles.

The first one we will talk about is algae. Mold on roof jan 30 2018. Black algae stains may be mistaken for but are not extractive bleeding a product cosmetic defect. Once on the roof lichen cannot easily be removed.

Algae will devour your shingles and is also attracted to moisture. Even if it dries out it can come back to life when rain or moisture appears. Scrubbing or power washing the lichen will only do more damage. Some black stains on asphalt roof shingles are caused by a black algae sometimes misnamed as a black fungus or even a mildew such as that shown in the photograph here.

This fungus is particularly damaging to the roof itself when not taken care of as soon as it s noticed.