Scrub tough stains with a stiff bristle brush dipped in the solution.
Roof mold remedies.
You might also want to hose down the plants shrubs and small trees with water once finished.
Mix up your cleaning solution.
The coating of water will dilute chemicals spilling downward from roof eaves.
Spraying the roof 1.
By this old house tom silva installs a zinc strip to keep roof algae from coming back.
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.
Using a plastic pump type garden sprayer thoroughly soak the affected area with your choice of chemical.
Follow the steps below to remedy this problem.
Don gloves and eye protection and liberally spray a 1 to 10 solution of bleach and water on the surface.
Use a long handled brush to scour the surface of the shingles and loosen stuck on.
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.
If you decide to use a bleach solution or other readymade roof moss treatment protect nearby plants with plastic sheeting.
How to use bleach mixtures on your roof.
Bleach mixtures can injure sensitive plants.
Let sit for 10 to 20 minutes and rinse with a garden hose.
Wash off all.