Moss aides in shortening the life span of your roof because it retains moisture and in cold climates can freeze causing damage to the shingle and granules.
Fungus growing on asphalt roof shingle.
Mold stains can form on roof shingles that are in permanent shade.
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Some roof shingle materials contain algaecides or fungicides which will also retard moss growth on the roof surface.
Unlike algae moss can be detrimental to asphalt shingle performance.
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The black streaks are also known as black algae or roof mold.
In severe cases moss build up can cause lateral water movement resulting in moisture damage to the roof deck or may even cause leaks.
These stains will discolor your roof and damage the shingles over a period of time if left alone.
X research source if you live in an area with an especially humid climate you may need to give your shingles more frequent attention.
The black mold like stains and streaks that appear on roofs particularly light colored asphalt shingles is actually a blue green algae gloeocapsa magma.
Inspect your roof closely at the end of summer and following stretches of warm rainy weather when high levels of moisture can accelerate mold growth.
Find out how to remove unsightly black stains from asphalt shingle roofs caused by an algae known as gloeocapsa magma that is spread by airborne spores.
How to get rid of algae on the roof.
This unique advance in shingle technology gives long term fungus protection for the entire roof.
Commonly found in climates with warm humid summers it does no damage to the roofing but it certainly does looks bad.
The 3m companyhas developed an additive for asphalt roofing shingles using copper granules.
Another organism growing on your roof is moss which is a plant not a fungus or algae.
Here s why algae grows on roofs.
They call it the algaeblocksystem.
Scrubbing or power washing the lichen will only do more damage.
Technically the black streaks on roofs are a form of algae known as gloeocapsa magma.
If you live in a humid area of the country you ve probably seen unsightly dark streaks on asphalt shingle roofs.
On an asphalt or possibly some treated wood shingle roofs shingle chemistry is also involved in moss lichens and algae growth or resistance to it.