Spray the entire roof thoroughly.
Black mold on roof tiles.
Black mold refers to several species of mold which is a type of fungus that have a dark green or black appearance.
Continue spraying until you see runoff then let the chemicals sit for 15 20 minutes to soak in and begin attacking the mold.
Granted some of it could be mold but what is spreading like wildfire is gleocapsa magma.
Start on lowest row of shingles and work your way backwards to the upper part of the roof.
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.
You clean it and it returns year after year.
Black mold on asphalt shingles is ugly.
One such type is stachybotrys chartarum.
This will prevent the solution from draining in your direction.
Here s why algae grows on roofs.
The color of a mold isn t associated.
In reality what you are seeing is not black mold but a bacteria that is called gloeocapsa magma.