Misnamed as mildew or fungus by some writers algae staining on asphalt shingles usually in shaded areas or on the more shaded roof slopes characterized by black staining fairly uniform over shingles but appearing specifically in areas of the roof shaded by nearby trees.
Green algae on roof shingles.
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What is roof algae.
The organisms use your roof shingles as food which slowly deteriorates the materials.
Warranty for complete coverage and restrictions the word lifetime refers to the length of coverage provided by the gaf shingle and accessory ltd warranty and means as long as the original individual owner s of a single family detached.
How to get rid of algae on the roof.
Commonly found in climates with warm humid summers it does no damage to the roofing but it certainly does looks bad.
The only way to take care of it is to use a high base chemical solution like zinc sulfate.
Getting rid of the problem is important but how do you safely remove algae and moss from roof shingles.
Algae can cause unsightly stains and growths on your new roof.
While some people actually like the look of moss on their.
It takes special.
Lifetime limited warranty see gaf shingle and accessory ltd.
Black or brown or green algae stains on asphalt roof shingles.
The ugly black red green or brown stains on your roof are likely algae or moss.
The most common culprit is actually a blue green algae known as gloeocapsa magma that is spread by airborne spores.
How to safely remove algae moss from roof shingles.
Community q a.
If you live in a humid area of the country you ve probably seen unsightly dark streaks on asphalt shingle roofs.
Stainguard plus algae protection is available only on shingles sold in packages bearing the stainguard plus logo.
Products with stainguard plus algae protection are covered by a 25 year limited warranty against blue green algae discoloration.
Here in oregon mostly blue green algae grows on the outside of the house or on the roof shingles.
Though often attributed to an accumulation of dirt defective shingles mold or mildew.
A blue green algae known as gloeocapsa magma could be the reason you have the algae which is spread by airborne spores sometimes it can also be caused by an accumulation of mildew mold dirt or defective shingles.
We ll explain more of that in a bit.
Many homeowners mistake algae for roof mold in most cases however it is really a blue green type of algae and when it dies it leaves dark streaks on your 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.
Living in a humid area of the country like florida you ve probably seen your asphalt shingle roofs with unsightly dark streaks on them.