Staining Roof Shingles

The staining and discoloration caused by algae initially appear as dark brown and black or sometimes greenish streaks on the roof surface.

Staining roof 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. This keeps the solution from drying out immediately after application. Soak the shingles with water. Do shingles on your north west or other shaded roofs have streaky moldy stains.

To give a shingle its color texture and protective coating granules are added. In recent years roofing manufacturers have begun mixing copper granules into roofing products. They are often rectangular in shape but size can vary. Green roof stains on roof shingles clay tiles cement tiles and asbestos cement roof shingles or newer fiber cement.

It s most noticeable on white or other light colored roofs. It is not uncommon for roof shingles to turn black over time. If you live in a humid area of the country you ve probably seen unsightly dark streaks on asphalt shingle roofs. How to clean roof stains wash your shingles where the sun doesn t shine.

When that happens it is generally caused by mildew algae mold or dirt stains. Black streaks on the north and west facing and shaded. Here s how to clean the. A layer of sand is added to the base of the shingle which is then fed into a press to embed the granules.

Extractive bleeding stains on asphalt roofs see extractive bleeding on shingles and see roofing material defect. Lichens growing on building surfaces lichens are not the. 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. 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.

Roof shingles are a covering on the roof of your house that are laid out in a manner that they overlap each other. Granules are made from mined rock that has been crushed. Make your shingles last longer. Preserve the appearance of your roof by removing black stains promptly.

Starting from the bottom carefully wet the shingles. How to remove and prevent black algae stains on asphalt shingle roofs algae resistant shingles. Bring your garden hose or water sprayer up to the roof.