Fungal Growth On Roof Shingles

Even if it dries out it can come back to life when rain or moisture appears.

Fungal growth on roof shingles. It needs heat moisture and nutrients to grow. They call it the algaeblock system. You can find more information on these special roofing shingles here. However most of the anti algae products also work in fighting fungal growth.

Known as black algae or roof mold gloeocapsa magma is usually blamed on dirt accumulation mold and mildew or defective shingles. 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. Some roof shingle materials contain algaecides or fungicides which will also retard moss growth on the roof surface. Scrubbing or power washing the lichen will only do more damage.

Algae resistant shingles or ar shingles for short began when shingle manufacturers looked for ways to gain market share. It s actually just a blue green algae spread by airborne spores. It is easily spread and causes those colorful stains on so many roofs. These kinds of organic growth will degrade cedar roofs much faster than a lot of other roofing issues.

A brief history of algae resistant shingles. Once on the roof lichen cannot easily be removed. Most of the stains on the average atlanta roof are the result of algae and not fungus. Some moss or fungi development you may see are dark brown or black spots that weaken shakes or shingles.