How To Get Rid Of Black Stains On Roof Shingles

Over time this algae accumulates developing a black outer coating which causes stains on roof shingles.

How to get rid of black stains on roof shingles.

When that happens it is generally caused by mildew algae mold or dirt stains. But now this black algae is termed a roof shingle algae because of the annoying discoloration on a asphalt shingle roof. This will cover 200 sq. Spray the black stains first then the entire roof so the stains get a second dose.

They ll get reactivated by high humidity dew fog or rain to eliminate more growth. Roof shingles are exposed to a lot of wear and tear as extreme heat sun wind and precipitation come into contact with them. It is not uncommon for roof shingles to turn black over time. It could take awhile but rest assured that lichen and most moss situations once dead will eventually dislodge and rinse off the roof thanks to mother nature.

Black streaking on roofs is a common problem. After cleaning a product such as wet and forget should further fade the black stain that may remain and inhibit for a time the return. Black streaks on the north and west facing and shaded areas of your asphalt shingled roof can really wreck the appearance of your home. The streaks look like mold but they re actually algae colonies that form in your shingles and feed on moisture and the limestone filler agents in the shingles.

The bleach degrades into salt which kills microbial growths and the sodium silicate does the same. Unlike black algae stains which come off immediately with the rinse phase of the cleaning dead lichen and moss will require a few heavy rains to finish rinsing off the roof. If you don t want to climb around on a slippery roof or your shingle manufacturer will void your warranty if you try to clean your roof yourself you should contact a professional roof cleaning service to get rid of those ugly black algae stains on your roof. On the question of why the algae is so widespread now vs 20 or so years ago suspicion is that it goes back to the change in the materials in roof shingles in the 80 s when the base material in shingles.