How To Remove Roof Stains

How to clean roof stains wash your shingles where the sun doesn t shine.

How to remove roof stains.

Step 4 apply solution. Algae can be killed and the stains removed using chemical cleaners though they usually return over time. Step 5 let solution soak in. Use your garden hose to soak the affected area.

Set the nozzle at the highest pressure setting and hold it 12 inches from the shingles. Do shingles on your north west or other shaded roofs have streaky moldy stains. Use a cleaner specially made for killing algae or by spraying a mixture of one part bleach to four parts water with tsp trisodium phosphate or other detergent added in a garden pump up sprayer. Next position your ladder against your home and make sure it s secure.

Step 3 mix cleaning solution. After that mix one part cleaner with six parts water in a pump sprayer. Black streaks on the north and west facing and shaded. Cleaning the shingles first choose a non corrosive roof cleaner from your local home improvement store.

Here s how to clean the. Rinse from the top of the roof down to avoid re staining the shingles with the dirty water. Step 1 cover foliage. Allow the bleach to remain on for 15 to 20 minutes then rinse it off with a hose.

Allow the oxygen bleach to sit on the shingles for 20 minutes. How to remove roof stains.