Black Mold On Roofing Shingles

Mold stains can form on roof shingles that are in permanent shade.

Black mold on roofing shingles.

Black mold on asphalt shingles is ugly. Granted some of it could be mold but what is spreading like wildfire is gleocapsa magma. Commonly found in climates with warm humid summers it does no damage to the roofing but it certainly does looks bad. Mold or mildew makes black ugly streaks on a roof.

The black mold like stains and streaks that appear on roofs particularly light colored asphalt shingles is actually a blue green algae gloeocapsa magma. Not only is it unattractive it can actually shorten the life of your shingles so you really should get rid of it. In reality what you are seeing is not black mold but a bacteria that is called gloeocapsa magma. You clean it and it returns year after year.

Extensive mold growth can also expose the interior of your attic or crawlspace to mold spores carrying the problem over to the inside not to worry though because you can clean the mold off with basic household bleach and save. There are a number of commercial products available that will get rid of mold but if you don t mind working at heights getting mold off roof shingles is really something you can. These stains will discolor your roof and damage the shingles over a period of time if left alone. I am really disappointed the treated shingles didn t work.

The black streaks are also known as black algae or roof mold. Technically the black streaks on roofs are a form of algae known as gloeocapsa magma.