Spray it across the shingles you wish to clean wait about 20 minutes then rinse them with water.
How to clean shingles on your roof.
Scrub the wet section of the roof.
Mix the hot water bleach and detergent in the bucket until the soap.
Use your garden hose and spray your roof with a coat of water to cool it down and prevent the cleaner from drying too quickly.
Soak the shingles with water.
Then spray your cleaner onto your shingles in a smooth even coat.
Bring your garden hose or water sprayer up to the roof.
Start from the top shingle and rinse downward to prevent water seepage.
Spray your cleaning solution.
Mix your cleaning solution.
Spray the cleaner on a section of roof and let it sit for about 15 minutes.
Next rinse the shingles thoroughly with a garden hose at low pressure.
Allow the solution to soak into the shingles for at least 15 minutes.
While specialized eco friendly roof cleaners are available they are a little more.
Do shingles on your north west or other shaded roofs have streaky moldy stains.
Make your shingles last longer.
How to clean roof stains wash your shingles where the sun doesn t shine.
Fill your low pressure agricultural sprayer with a specialized asphalt cleaning agent.
Cleaning asphalt shingles is an important part of protecting your roof.
Black streaks on the north and west facing and shaded.
Mix the hot water bleach and detergent and pour into the garden sprayer.
Wait about 20 minutes then rinse off the shingles with your garden hose use the most powerful spray setting available.
Cleaning moss and algae 1.
Starting from the bottom.
To stay safe suit up in long sleeves pants and safety goggles.