Never use a.
Green algae roof shingles.
1 selling shingles in north america.
Commonly found in climates with warm humid summers it does no damage to the roofing but it certainly does looks bad.
Here in oregon mostly blue green algae grows on the outside of the house or on the roof shingles.
The organisms use your roof shingles as food which slowly deteriorates the materials.
Lifetime limited warranty see gaf shingle and accessory ltd.
Wind carries algae spores from roof to roof hot humid conditions promote algae growth.
How to get rid of algae on the roof.
What is roof algae.
Allow the solution to soak into the shingles for at least 15 minutes.
Per bundle 21 pieces industry leading nailing zone with 99 9 nail placement accuracy enhanced shadow effect for a genuine wood shake look.
Black streaks green or white spots round lichens mosses green moss that spreads across your roof.
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.
Cleaning step 2 make and apply the bleach solution.
Step 4 take precautions.
The only way to take care of it is to use a high base chemical solution like zinc sulfate.
Algae spores can quickly spread in the right conditions.
It takes special care to clean algae roof stains and moss off the roof.
Step 3 check for cleanliness and rinse.
The black mold like stains and streaks that appear on roofs particularly light colored asphalt shingles is actually a blue green algae gloeocapsa magma.
Products with stainguard algae protection are covered by a 10 year limited warranty against blue green algae discoloration.
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.
Put on rubber gloves and a breathing mask before proceeding you so you can.
2stainguard algae protection is available only on shingles sold in packages bearing the stainguard logo.
Timberline hdz hunter green algae resistant laminated high definition shingles 33 33 sq.
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.
We ll explain more of that in a bit.
The ugly black red green or brown stains on your roof are likely algae or moss.