Cleaning step 2 make and apply the bleach solution.
Green fungus on roof shingles.
Black or brown or green algae stains on asphalt roof shingles.
It needs heat moisture and nutrients to grow.
It s actually just a blue green algae spread by airborne spores.
Allow the solution to soak into the shingles for at least 15 minutes.
Commonly found in climates with warm humid summers it does no damage to the roofing but it certainly does looks bad.
The black mold like stains and streaks that appear on roofs particularly light colored asphalt shingles is actually a blue green algae gloeocapsa magma.
Known as black algae or roof mold gloeocapsa magma is usually blamed on dirt accumulation mold and mildew or defective shingles.
The next roof fungus is something everyone will know.
Never use a.
Use algae resistant shingles when re roofing.
If properly maintained this fuzzy green fungus can be a beautiful aesthetic piece for the outside of your home.
Moss lichens algae resistant roof shingles.
Step 4 take precautions.
However like most fungus moss is also attracted to moisture which can be detrimental to your roof health.
It is easily spread and causes those colorful stains on so many roofs.
Discuss this option with your roofer when it s time to replace the roof.
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.