Roof Stains Asphalt Shingles

Other dark roof stains from specific sources include soot from chimneys brown black around a chimney and down roof from the chimney and.

Roof stains asphalt shingles.

As the blue green algae accumulate they develop a dark hardened outer coating which results in the black stains you see. The black streaks running down roofs are actually a hardy algae called gloeocapsa magma. Roof shingles are exposed to a lot of wear and tear as extreme heat sun wind and precipitation come into contact with them. Black streaks on the north and west facing and shaded areas of your asphalt shingled roof can really wreck the appearance of your home.

Norman above assert that many of the black stains on asphalt shingle roofs are due to algae growth and that extractive bleeding may not be a current roof problem. Surface residues or discoloring stains can affect almost any type of roof. Spray forget revolutionary roof cleaner concentrate removes stains caused by algae mold and mildew. The most effective method of cleaning algae and moss from a roof is w ith a 50 50 mix of laundry strength liquid chlorine bleach and w ater.

For cr s roofing tests we focus strictly on asphalt roofing shingles because they re by far the most common choice for roofs. Here s how to clean the ugly discoloration and keep it from coming back. Painting the asphalt shingles will cost less than replacing them but it will not be a permanent fix. Using bleach is recommended by most shingle roof manufactures and the arma asphalt roofing manufactures association.

Asphalt shingles are easy to install last anywhere from 10 to 50. One particular condition that has been an issue in southern areas for many years but has become more commonplace in other regions in recent years is the staining of asphalt shingle roofing caused by algae. Do shingles on your north west or other shaded roofs have streaky moldy stains. When that happens it is generally caused by mildew algae mold or dirt stains.

It is not uncommon for roof shingles to turn black over time. Some roofing consultants including mr. After you paint the asphalt shingles they must be touched up and repainted to remain in good condition. This concentrated roof cleaner saves time with no rinsing required.

Painting your shingles does not require a lot of preparation work and it will help improve your roof s look. 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.