Follow the steps below to remedy this problem.
Roof mold remedies.
To get rid of mold and other types of growth for good it s best to use a powerful.
The black mold like stains and streaks that appear on roofs particularly light colored asphalt shingles is actually a blue green algae.
Spraying the roof 1.
Bleach mixtures can injure sensitive plants.
How to use bleach mixtures on your roof.
Wash off all.
You might also want to hose down the plants shrubs and small trees with water once finished.
By this old house tom silva installs a zinc strip to keep roof algae from coming back.
Scrub tough stains with a stiff bristle brush dipped in the solution.
Because it is difficult to totally protect them from the mix spray.
Let sit for 10 to 20 minutes and rinse with a garden hose.
Mix up your cleaning solution.
Scrub away the thickest buildup.
Not to worry though because you can clean the mold off with basic household bleach and save your roof long before you need an expensive replacement.
Don gloves and eye protection and liberally spray a 1 to 10 solution of bleach and water on the surface.
Using a plastic pump type garden sprayer thoroughly soak the affected area with your choice of chemical.
Spray the entire roof thoroughly.
Extensive mold growth can also expose the interior of your attic or crawlspace to mold spores carrying the problem over to the inside.