The black streaks are also known as black algae or roof mold.
Roof has black streaks.
The first thing to note is that what you re seeing is the result of a cyanobacteria known as gloeocapsa magna.
Technically the black streaks on roofs are a form of algae known as gloeocapsa magma.
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.
As the blue green algae.
The most common culprit is actually a blue green algae known as gloeocapsa magma that is.
While lye sodium hydroxide is more effective than bleach it is corrosive and should only.
Though often attributed to an accumulation of dirt defective shingles mold or mildew.
But now this black algae is termed a roof shingle algae because of the annoying discoloration on a asphalt shingle roof.
It s also known as blue green algae in the roofing business.
Those that tend to be the most humid furthermore they will only appear on the north side of the roof.
If you re seeing black streaks running along your roof chances are you ve mistaken them for dirt or even mold.
An internet search on how to clean black streaks on your roof will turn up several different homemade formulas as well as commercial brands for getting rid of roof algae.
Believe it or not those black streaks only appear on roofs in certain areas of the country.
Not only do professionals have power wash tools to make cleaning effective and safe for your shingles but they will also know what chemical solutions to use.
Black streaks on roof.
Yes you can get rid of those black streaks on roof shingles but it will require a powerful chemical cleaning.
Contact local roofing professionals and ask them about chemical cleanings.
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 streaks are caused by a type of algae known as gloeocapsa magma.
The algae feed off of the limestone within the roof shingles.
Black streaks on shingled roofs are a common though mysterious sight.
Black stains on an asphalt roof caused by algae.
Though gloeocapsa magna has literally been around for centuries it didn t make its ugly presence known as a major problem in the u s.
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.
While not immediately damaging they can prematurely age shingles.
Algae arrive on the rooftop through the air in the form of spores or clumps of cells.
Most formulas contain chlorine bleach and or trisodium phosphate tsp and water.
Over time this algae accumulates developing a black outer coating which causes stains on roof shingles.
