2stainguard algae protection is available only on shingles sold in packages bearing the stainguard logo.
Green algae roof shingles.
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.
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Even though roof streaking is caused by what s called blue green algae the streaks are black due to the dark pigmented sheath that algae uses to protect itself from the sun s rays.
How to get rid of algae on the roof.
Put on rubber gloves and a breathing mask before proceeding you so you can.
Step 3 check for cleanliness and rinse.
The organisms use your roof shingles as food which slowly deteriorates the materials.
What is roof algae.
Algae spores can quickly spread in the right conditions.
Cleaning step 2 make and apply the bleach solution.
The ugly black red green or brown stains on your roof are likely algae or moss.
We ll explain more of that in a bit.
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.
See gaf shingle accessory limited warranty for complete coverage and restrictions.
Commonly found in climates with warm humid summers it does no damage to the roofing but it certainly does looks bad.
Allow the solution to soak into the shingles for at least 15 minutes.
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Here in oregon mostly blue green algae grows on the outside of the house or on the roof shingles.
Products with stainguard algae protection are covered by a 10 year limited warranty against blue green algae discoloration.
Black streaks green or white spots round lichens mosses green moss that spreads across your roof.
Black or brown or green algae stains on asphalt roof shingles 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.
Wind carries algae spores from roof to roof hot humid conditions promote algae growth.
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Getting rid of the problem is important but how do you safely remove algae and moss from roof shingles.
Step 4 take precautions.
It takes special care to clean algae roof stains and moss off the 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.