If you decide to use a bleach solution or other readymade roof moss treatment protect nearby plants with plastic sheeting.
Roof mold remedies.
Bleach mixtures can injure sensitive plants.
The black mold like stains and streaks that appear on roofs particularly light colored asphalt shingles is actually a blue green algae.
Because it is difficult to totally protect them from the mix spray.
Spraying the roof 1.
How to use bleach mixtures on your roof.
Use a long handled brush to scour the surface of the shingles and loosen stuck on.
To get rid of mold and other types of growth for good it s best to use a powerful.
Scrub tough stains with a stiff bristle brush dipped in the solution.
By this old house tom silva installs a zinc strip to keep roof algae from coming back.
Let sit for 10 to 20 minutes and rinse with a garden hose.
Scrub away the thickest buildup.
Mix up your cleaning solution.
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.
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.
Spray the entire roof thoroughly.
Wash off all.
Extensive mold growth can also expose the interior of your attic or crawlspace to mold spores carrying the problem over to the inside.