Black Streaks On Asphalt Shingle Roof

Here s why algae grows on roofs.

Black streaks on asphalt shingle roof.

Replacing the shingles on your roof just because you have black stains is not necessary however and you should be suspicious of any roofer that suggests roof shingle replacement as the only solution to your algae problem. Black streaking on roofs is a common problem. The most common culprit is actually a blue green algae known as gloeocapsa magma that is spread by airborne spores. Roofing manufacturers have tackled the problem of roof algae by creating shingles containing copper which is deadly to algae.

Technically the black streaks on roofs are a form of algae known as gloeocapsa magma. Over time this algae accumulates developing a black outer coating which causes stains on roof shingles. But now this black algae is termed a roof shingle algae because of the annoying discoloration on a asphalt shingle roof. The black mold like stains and streaks that appear on roofs particularly light colored asphalt shingles is actually a blue green algae gloeocapsa magma.

If a roof replacement is outside of your budget roof maxx can help extend the life of your asphalt shingle roof by up to 15 years and save you 85 on what a replacement would cost. Though often attributed to an accumulation of dirt defective shingles mold or mildew. If you live in a humid area of the country you ve probably seen unsightly dark streaks on asphalt shingle roofs. Black streaks on shingled roofs are a common though mysterious sight.

Features scotchguard protector to keep shingles from getting black algae streaks. The black streaks are also known as black algae or roof mold. Why are there dark streaks on my roof. Algae may be mistaken for soot dirt or tree droppings most of which typically produce only localized discoloration.

Algae growth may cause discoloration on roofs resulting in brown or black streaks on a rooftop. Black streaks on the north and west facing and shaded areas of your asphalt shingled roof can really wreck the appearance of your home. The black streaks running down roofs are actually a hardy algae called gloeocapsa magma. 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.

Wind warranty of 150 mph. While the streaks do not cause a great deal of damage they can cause the shingle to age prematurely. 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. While not immediately damaging they can prematurely age shingles.

Algae growth on asphalt shingles. Commonly found in climates with warm humid summers it does no damage to the roofing but it certainly does looks bad. As the blue green algae. If you live in a humid area of the country you ve probably seen unsightly dark streaks on asphalt shingle roofs.