Fungal Growth On Roof Shingles

Algae resistant shingles or ar shingles for short began when shingle manufacturers looked for ways to gain market share.

Fungal growth on roof shingles.

It is easily spread and causes those colorful stains on so many roofs. This unique advance in shingle technology gives long term fungus protection for the entire roof. They call it the algaeblock system. A brief history of algae resistant shingles.

Most of the stains on the average atlanta roof are the result of algae and not fungus. You can find more information on these special roofing shingles here. Some moss or fungi development you may see are dark brown or black spots that weaken shakes or shingles. Some roof shingle materials contain algaecides or fungicides which will also retard moss growth on the roof surface.

Even if it dries out it can come back to life when rain or moisture appears. Known as black algae or roof mold gloeocapsa magma is usually blamed on dirt accumulation mold and mildew or defective shingles. However most of the anti algae products also work in fighting fungal growth. On an asphalt or possibly some treated wood shingle roofs shingle chemistry is also involved in moss lichens and algae growth or resistance to it.

Lichen is a photosynthetic fungus that has roots that wrap around the granules feeding on the nutrients of the gm and the filler in the shingles. It s actually just a blue green algae spread by airborne spores. Once on the roof lichen cannot easily be removed. Scrubbing or power washing the lichen will only do more damage.