Using shingles that have been treated with algicide keeps the growth at bay for about 10 years thus the 10 year algae warranty.
How to clean mold off roof shingles.
In case of a lightly stained roof a garden hose may also be enough.
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.
A blue green algae known as gloeocapsa magma could be the reason you have the algae which is spread by airborne spores.
The black mold like stains and streaks that appear on roofs particularly light colored asphalt shingles is actually a blue green algae gloeocapsa magma.
Do it yourself and save big bucks.
Why anyone has to get on a roof and then run some machine pressure over it is beyond me.
Rinse off the solution.
There are a number of commercial products available that will get rid of mold but if you don t mind working at heights getting mold off roof shingles is really something you can.
These stains will discolor your roof and damage the shingles over a period of time if left alone.
Then use a long handled brush to scour the surface of the shingles and loosen stuck on mold while it s dry and brittle.
Commonly found in climates with warm humid summers it does no damage to the roofing but it certainly does looks bad.
Extensive mold growth can also expose the interior of your attic or crawlspace to mold spores carrying the problem over to the inside not to worry though because you can clean the mold off with basic household bleach and save.
Not only is it unattractive it can actually shorten the life of your shingles so you really should get rid of it.
But once the algicide wears off your roof hosts an all you can eat buffet for the neighborhood algae spores.
Though often attributed to an accumulation of dirt defective shingles mold or mildew.
Mold or mildew makes black ugly streaks on a roof.
Use a water sprayer to apply enough force to dislodge algae and moss without damaging the shingles.
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.