Roof Mildew Staining

When that happens it is generally caused by mildew algae mold or dirt stains.

Roof mildew staining.

Roof shingles are exposed to a lot of wear and tear as extreme heat sun wind and precipitation come into contact with them. Mix the soap and water well first then add the bleach. 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. If your household water pressure isn t enough to generate the proper nozzle pressure at the jets the manufacturer recommends boosting it.

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. Spray the black stains first then the entire roof so the stains get a second dose. It is not uncommon for roof shingles to turn black over time. The bleach degrades into salt which kills microbial growths and the sodium silicate does the same.

Here is a diagnostic guide to types of stains and staining materials found on roof surfaces black red green brown or other coloured stains on asphalt roof shingles or on other roofing materials need first an accurate diagnosis of the stain cause and then proper steps to remove the stain or to prevent future staining on roof shingles surfaces.