Black Streaks On Roof Shingles

Fortunately there are ways of removing those black patches.

Black streaks on roof shingles.

This algae growth usually begins as small spots and then eventually becomes visible streaks. The most common type is known as gloeocapsa magma also known as blue green algae. The black streaks are also known as black algae or roof mold. Technically the black streaks on roofs are a form of algae known as gloeocapsa magma.

Black streaks on the north and west facing and shaded areas of your asphalt shingled roof can really wreck the appearance of your home. 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. Black streaking on roofs is a common problem. The streaks are caused by a type of algae known as gloeocapsa magma.

Over time this algae accumulates developing a black outer coating which causes stains on roof shingles. Why are there dark streaks on my roof. As the blue green algae. Have you noticed black streaks on roof materials or patches along your rooftop especially in the shade.

Here s what they are and what to do about them. If you re seeing black streaks running along your roof chances are you ve mistaken them for dirt or even mold. Algae arrive on the rooftop through the air in the form of spores or clumps of cells. But now this black algae is termed a roof shingle algae because of the annoying discoloration on a asphalt shingle roof.

Algae growth on asphalt shingles. Algae growth may cause discoloration on roofs resulting in brown or black streaks on a rooftop. Roof shingles often fade into lighter colors over time but sometimes the opposite effect can occur thanks to subtle plant growth. They re actually algae otherwise known as gloeoapsa magma and they are as nasty as they are resilient.

Algae may be mistaken for soot dirt or tree droppings most of which typically produce only localized discoloration. Black streaks on shingled roofs are a common though mysterious sight. The streaks look like mold but they re actually algae colonies that form in your shingles and feed on moisture and the limestone filler agents in the shingles. Here s why algae grows on roofs.

While the streaks do not cause a great deal of damage they can cause the shingle to age prematurely. If you live in a humid area of the country you ve probably seen unsightly dark streaks on asphalt shingle roofs. The black streaks running down roofs are actually a hardy algae called gloeocapsa magma. If you live in a humid area of the country you ve probably seen unsightly dark streaks on asphalt shingle roofs.