How To Remove Roof Stains

Algae can be killed and the stains removed using chemical cleaners though they usually return over time.

How to remove roof stains.

Step 1 cover foliage. Since you ll be working with a bleach mixture make sure that any greenery in the vicinity is covered up to avoid. Allow the oxygen bleach to sit on the shingles for 20 minutes. Here s how to clean the.

Make your shingles last longer. Step 2 take safety precautions. How to clean roof stains wash your shingles where the sun doesn t shine. How to remove roof stains.

Step 3 mix cleaning solution. After that mix one part cleaner with six parts water in a pump sprayer. Allow the bleach to remain on for 15 to 20 minutes then rinse it off with a hose. Do shingles on your north west or other shaded roofs have streaky moldy stains.

Set the nozzle at the highest pressure setting and hold it 12 inches from the shingles. Rinse from the top of the roof down to avoid re staining the shingles with the dirty water. Cleaning the shingles first choose a non corrosive roof cleaner from your local home improvement store. Use your garden hose to soak the affected area.

Black streaks on the north and west facing and shaded. Step 4 apply solution.