We ve all seen a house with an exceptionally dirty roof at one point or another.
Black algae on roof.
It s probably not soot.
These roof invaders require a.
Technically the black streaks on roofs are a form of algae known as gloeocapsa magma.
Gloeocapsa has the ability to form a protective darkly pigmented outer coating that shields the algae from damaging uv rays.
Although mold can grow in your roofing materials if water gets trapped somewhere if you see any of the following on top of your roof algae are more likely your problem.
As the blue green algae accumulate they develop a dark hardened outer coating which results in the black stains you see.
If you live in a humid area of the country you ve probably seen unsightly dark streaks on asphalt shingle roofs.
Although algae can be found on all types of roofing it tends to be most common on asphalt shingles.
The black spots discoloring your asphalt roof are more than likely the pervasive and prevalent algae known as gloecapsa magma.
This is what makes those unattractive black streaks on your roof.
If you have dark streaks on your roof siding and other outside areas around your home they likely caused by a type of black algae called 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.
The dangers of black algae streaks on roof to your home.
The black streaks are also known as black algae or roof mold.
Gloeocapsa magma is a type of cyanobacterium that can survive cold temperatures wind and harsh sun.
These black roof algal stains are sometimes misnamed or misidentified as a black fungus or even a mildew.
Black streaks green or white spots round lichens mosses green moss that spreads across your roof.
Some black stains on asphalt roof shingles are caused by a black algae typically gloeocapsa magma.
Fiddler roof cleaning has an excellent post on the dangers of roof mold and algae.
The black streaks running down roofs are actually a hardy algae called gloeocapsa magma.
In doing so you prevent the dangers black algae streaks on roof pose to your health.
Why does this algae appear to be black.
The algae feed on the limestone in shingles.
Here s why algae grows on roofs.