Roof Stains Asphalt Shingles

Using bleach is recommended by most shingle roof manufactures and the arma asphalt roofing manufactures association.

Roof stains asphalt shingles.

This concentrated roof cleaner when mixed with water can cover 1000 2000. Some roofing consultants including mr. This concentrated roof cleaner saves time with no rinsing required. It is not uncommon for roof shingles to turn black over time.

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. Painting your shingles does not require a lot of preparation work and it will help improve your roof s look. Here s how to clean the ugly discoloration and keep it from coming back. Surface residues or discoloring stains can affect almost any type of roof.

For cr s roofing tests we focus strictly on asphalt roofing shingles because they re by far the most common choice for roofs. Painting the asphalt shingles will cost less than replacing them but it will not be a permanent fix. Other dark roof stains from specific sources include soot from chimneys brown black around a chimney and down roof from the chimney and. 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 algae feed on the limestone in shingles. Roof shingles are exposed to a lot of wear and tear as extreme heat sun wind and precipitation come into contact with them. Great for outdoor use on asphalt shingles wood shingles slate shingles and clay tile shingles. The black streaks running down roofs are actually a hardy algae called gloeocapsa magma.

Asphalt shingles are easy to install last anywhere from 10 to 50. After you paint the asphalt shingles they must be touched up and repainted to remain in good condition. Spray forget revolutionary roof cleaner concentrate removes stains caused by algae mold and mildew. Do shingles on your north west or other shaded roofs have streaky moldy stains.

As the blue green algae accumulate they develop a dark hardened outer coating which results in the black stains you see. 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.