Step 3 mix cleaning solution.
How to remove roof stains.
Since you ll be working with a bleach mixture make sure that any greenery in the vicinity is covered up to avoid.
Make your shingles last longer.
Set the nozzle at the highest pressure setting and hold it 12 inches from the shingles.
How to clean roof stains wash your shingles where the sun doesn t shine.
Next position your ladder against your home and make sure it s secure.
Step 5 let solution soak in.
After that mix one part cleaner with six parts water in a pump sprayer.
How to remove roof stains.
Rinse from the top of the roof down to avoid re staining the shingles with the dirty water.
Step 1 cover foliage.
Do shingles on your north west or other shaded roofs have streaky moldy stains.
Cleaning the shingles first choose a non corrosive roof cleaner from your local home improvement store.
Allow the oxygen bleach to sit on the shingles for 20 minutes.
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.
Algae can be killed and the stains removed using chemical cleaners though they usually return over time.
Step 4 apply solution.
Here s how to clean the.
Step 2 take safety precautions.