Black Mold On Roofing Shingles

I covered our asphalt shingle roof about five years ago with white 50 year guaranteed shingles that had algae prevention treatment but now the entire north side of our roof is black with algae i bought the shingles from lowe s in marianna florida.

Black mold on roofing shingles.

Mold stains can form on roof shingles that are in permanent shade. Commonly found in climates with warm humid summers it does no damage to the roofing but it certainly does looks bad. 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. These stains will discolor your roof and damage the shingles over a period of time if left alone.

Mold or mildew makes black ugly streaks on a roof. Granted some of it could be mold but what is spreading like wildfire is gleocapsa magma. The black streaks are also known as black algae or roof mold. I am really disappointed the treated shingles didn t work.

Not only is it unattractive it can actually shorten the life of your shingles so you really should get rid of it. Those that tend to be the most humid furthermore they will only appear on the north side of the roof. In reality what you are seeing is not black mold but a bacteria that is called gloeocapsa magma. Technically the black streaks on roofs are a form of algae known as gloeocapsa magma.

The black mold like stains and streaks that appear on roofs particularly light colored asphalt shingles is actually a blue green algae gloeocapsa magma. 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.