Spray the cleaner on a section of roof and let it sit for about 15 minutes.
How to clean a roof with bleach.
Apply to roof with garden style pump sprayer or other mechanical pump spray system or application.
Fill the reservoir on a garden sprayer with the cleaning solution.
Your shingles are made of a fiberglass mat that is covered with protective oils tar and asphalt.
Spray the entire dirty roof section.
For extra cleaning power mix in a non ammonia heavy cleaner like tsp.
Then spray the cleaner onto the shingles photo 1.
Then mix standard laundry bleach with water.
After applying product rinse the roof with a pressure washer.
Pour it into a pump sprayer strap yourself into a full body harness tie it down and climb to the roof.
That ll prevent the cleaner from drying out too quickly.
How to use bleach to clean a shingle roof step 1.
Mix the hot water bleach and detergent in the bucket until the soap granules dissolve.
Chlorine bleach also known as sodium hypochlorite or sh is not meant to be a roof cleaning chemical because it kills surface algae but can not penetrate the roof shingle granules to remove black mold root structures.
Of laundry strength liquid chlorine bleach and water.
Roof wash cleaning application.
Mix 1 gallon hot water 1 cup chlorine bleach and 1 cup powdered laundry soap into a large bucket.
Pour the mixture into the garden sprayer.
Before applying the cleaner spray the roof with water to cool it down.
It is this very oil tar and asphalt which protect your shingles from the elements.
This is the best way to clean a roof if you have asphalt shingles.
Pour the contents directly from the bucket.
Pick a cool overcast day so the cleaning solution doesn t dry too fast.
Roof stains return in as few as 9 months and the roof mold is worse than before.
The reason you shouldn t use bleach to remove moss from your roof has to do with the composition of your shingles.
Clean shingles on a cool humid overcast day to ensure that the cleaner doesn t dry too fast on the roof.
Never mix with other cleaning agents or bleach.