Dark Streaks On Roof

This algae growth usually begins as small spots and then eventually becomes visible streaks.

Dark streaks on roof.

May 1 2020 a to z contracting blog 2. The algae will worsen and become more noticeable each year trapping moisture and causing premature shingle aging and granule loss. The black streaks running down roofs are actually a hardy algae called gloeocapsa magma. While doing little harm to your shingles the black streaks caused by the algae are unsightly.

These black streaks are. You happen to walk back to your own home and see them too. Black streaking on roofs is a common problem. This solution should be sprayed on the roof and left.

Technically the black streaks on roofs are a form of algae known as gloeocapsa magma. Although it may look like mold or fungi these unsightly black streaks or smear like stains may indicate a type of roof algae known in technical terms as gloeocaspa magma. The black streaks are also known as black algae or roof mold. But now this black algae is termed a roof shingle algae because of the annoying discoloration on a asphalt shingle roof.

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. When that happens it is generally caused by mildew algae mold or dirt stains. Your stains are probably caused by the airborne spores of a blue green algae known as gloeocapsa magma which is often mistaken for mold or mildew.

These streaks look absolutely horrible and for your home s curb appeal they could bring down the property value of your home and those in your neighborhood. Here s why algae grows on roofs. Roof shingles are exposed to a lot of wear and tear as extreme heat sun wind and precipitation come into contact with them. This blackish algae creeps it way across neighborhood roofs gradually turning your home s asphalt shingles an ugly dark brown or black.

Algae can be killed and the stains removed using chemical cleaners though they usually return over time. As the blue green algae accumulate they develop a dark hardened outer coating which results in the black stains you see. The algae feed on the limestone in shingles. Solution should be a mixture of one gallon each of bleach and water 1 1.

If you live in a humid area of the country you ve probably seen unsightly dark streaks on asphalt shingle roofs. 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 most common type is known as gloeocapsa magma also known as blue green algae. It is not uncommon for roof shingles to turn black over time.

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.