Black Streaks On Roof Shingles

When that happens it is generally caused by mildew algae mold or dirt stains.

Black streaks on roof shingles.

Algae arrive on the rooftop through the air in the form of spores or clumps of cells. The black roof stains are caused by a form of algae that has been around for years typically found in the woods on the north side of trees or on exposed rocks. Today s homeowner serves cookies to analyze traffic and better serve you. They re actually algae otherwise known as gloeoapsa magma and they are as nasty as they are resilient.

Dark streaks or roof discoloration caused by algae happens in varying degrees across the u s especially in areas exposed to warm humid conditions. While the streaks do not cause a great deal of damage they can cause the shingle to age prematurely. The algae feed on the limestone in shingles. It is not uncommon for roof shingles to turn black over time.

The streaks are caused by a type of algae known as gloeocapsa magma. If you live in a humid area of the country you ve probably seen unsightly dark streaks on asphalt shingle roofs. Algae dark stains on asphalt roof shingles. The most common type is known as gloeocapsa magma also known as blue green algae.

Preserve the appearance of your roof by removing black stains promptly. Over time this algae accumulates developing a black outer coating which causes stains on roof shingles. As the blue green algae accumulate they develop a dark hardened outer coating which results in the black stains you see. Although these dark spots and ugly black streaks on your roof may look like dirt mildew soot or mold what they really are is algae.

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. This algae growth usually begins as small spots and then eventually becomes visible streaks. It is most widespread in the eastern united states and is commonly found on roofs with northern exposure.

But now this black algae is termed a roof shingle algae because of the annoying discoloration on a asphalt shingle roof. Here s why algae grows on roofs. Find out how to remove unsightly black stains from asphalt shingle roofs caused by an algae known as gloeocapsa magma that is spread by airborne spores. Technically the black streaks on roofs are a form of algae known as gloeocapsa magma.

Black streaking on roofs is a common problem.