How to remove roof shingle stains black or green shingle stains from mold mildew or algae can be unsightly.
How to remove roof stains yourself.
Set the ladder up safely and make sure it is stable.
If you are confident on your rooftop and you wish to remove stains yourself you will need.
Remove black stains from roof shingles to preserve the appearance of your home s roof.
The bleach degrades into salt which kills microbial growths and the sodium silicate does the same.
If your household water pressure isn t enough to generate the proper nozzle pressure at the jets the manufacturer recommends boosting it.
This will cover 200 sq.
Spray the black stains first then the entire roof so the stains get a second dose.
These black streaks are unsightly and can diminish the appearance of the entire exterior of the home.
When that happens it is generally caused by mildew algae mold or dirt stains.
Step 3 mix cleaning solution there are a few ways you can mix bleach but the most common is to take one part chlorine bleach three parts water and a sprinkle of liquid laundry detergent or tsp.
Mix the soap and water well first then add the bleach.
If left too long they can also eat away at the asphalt granules and begin to compromise your roof s integrity.
Fungi and other stains on the roof become slick when wet so you ll need to wear a harness or safety rope hard hat and have a sturdy ladder nearby.