Roof Mildew Staining

You could replace all the roofing with new shingles dark enough to disguise the staining or with shingles laced with copper granules which are lethal to algae.

Roof mildew staining. Wet forget moss mold mildew and algae stain remover hose end 48 oz 2 pack 3 9 out of 5 stars 120 rmr 86 instant mold stain mildew stain remover 2 pack 32 oz. It is not uncommon for roof shingles to turn black over time. If your household water pressure isn t enough to generate the proper nozzle pressure at the jets the manufacturer recommends boosting it. But that would only make sense if the shingles were worn out.

This will cover 200 sq. Roof shingles are exposed to a lot of wear and tear as extreme heat sun wind and precipitation come into contact with them. The less expensive solution is to spray wash the roof with a 50 percent mix of water and bleach to get rid of the algae. When that happens it is generally caused by mildew algae mold or dirt stains.

Spray the black stains first then the entire roof so the stains get a second dose.