A blue green algae known as gloeocapsa magma could be the reason you have the algae which is spread by airborne spores.
Cleaning green mold from roof shingles.
Mold won t form on a roof because it s allergic to sunlight and as soon as the ambient temperature surrounding the mold becomes dry the mold dies.
Moss those green feathery clumps you may see forming on the roof is a different type of plant and isn t the same thing as algae or mold.
Cleaning due to evidence of permanent asphalt shingle damage caused by high pressure powerwashing.
Inspect the roof for any remaining fungus.
Mold or mildew makes black ugly streaks on a roof.
A layer of green moss might look cozy and rustic atop your house but it can be bad news for your roof.
The streaks look like mold but they re actually algae colonies that form in your shingles and feed on moisture and the limestone filler agents in the shingles.
If your roof appears dark and discolored in some areas you may think that mold has developed on the surfaces of the shingles.
To clean mold off a roof start by putting on rubber gloves a breathing mask and goggles to protect yourself from the harsh cleaning chemicals.
You must let the roof dry before a second application of mix.
Follow these three straightforward steps to clean off all moss and keep it from coming back.
Allow the roof to dry thoroughly.
How to clean algae or mold off your roof shingles living in a humid area of the country like florida you ve probably seen your asphalt shingle roofs with unsightly dark streaks on them.
Mold stains can form on roof shingles that are in permanent shade.
Then use a long handled brush to scour the surface of the shingles and loosen stuck on mold while it s dry and brittle.
If it is slimy or any sort of residue comes off on your hand repeat the above steps.
These stains will discolor your roof and damage the shingles over a period of time if left alone.
If you live in a humid area of the country you ve probably seen unsightly dark streaks on asphalt shingle roofs.
Not only is it unattractive it can actually shorten the life of your shingles so you really should get rid of it.
Though often attributed to an accumulation of dirt defective shingles mold or mildew.
Algae is a single celled organism while moss is not.
Using shingles that have been treated with algicide keeps the growth at bay for about 10 years thus the 10 year algae warranty.
The most common culprit is actually a blue green algae known as gloeocapsa magma that is spread by airborne spores.
If you re reading this chances are you re looking for roof cleaning tips because your shingles are no longer looking new and attractive.