Staining Roof Shingles

Extractive bleeding stains on asphalt roofs see extractive bleeding on shingles and see roofing material defect.

Staining roof shingles. It is not uncommon for roof shingles to turn black over time. Bring your garden hose or water sprayer up to the roof. Algae stains can be removed by cleaning though they usually return. Green roof stains on roof shingles clay tiles cement tiles and asbestos cement roof shingles or newer fiber cement.

Roof shingles are a covering on the roof of your house that are laid out in a manner that they overlap each other. The staining and discoloration caused by algae initially appear as dark brown and black or sometimes greenish streaks on the roof surface. Shingles are laid from the bottom edge of the roof in rows each row overlapping the one below it all the way to the top. How to remove and prevent black algae stains on asphalt shingle roofs algae resistant shingles.

Though often attributed to an accumulation of dirt defective shingles mold or mildew the most common culprit is actually a blue green algae known as gloeocapsa magma that is spread by airborne spores. Roof shingles are exposed to a lot of wear and tear as extreme heat sun wind and precipitation come into contact with them. Soak the shingles with water. F9concrete rust remover barc is specifically developed to reverse and eliminate the largest proportion of rust stains on shingles concrete rust stains fertilizer rust stains and irrigation rust stains on concrete brick pavers tile stone concrete coatings asphalt sidewalks and other surfaces.

A layer of sand is added to the base of the shingle which is then fed into a press to embed the granules. Preserve the appearance of your roof by removing black stains promptly. They are often rectangular in shape but size can vary. Granules are made from mined rock that has been crushed.

This keeps the solution from drying out immediately after application. Black streaks on the north and west facing and shaded. Here s how to clean the. When that happens it is generally caused by mildew algae mold or dirt stains.

To give a shingle its color texture and protective coating granules are added. It s most noticeable on white or other light colored roofs. Do shingles on your north west or other shaded roofs have streaky moldy stains. Lichens growing on building surfaces lichens are not the.

How to clean roof stains wash your shingles where the sun doesn t shine. If you live in a humid area of the country you ve probably seen unsightly dark streaks on asphalt shingle roofs. Rust stains on shingles.