Black Algae On Roof

Why algae grows on roofs.

Black algae on roof. The dangers of black algae streaks on roof to your home. We ve all seen a house with an exceptionally dirty roof at one point or another. The black streaks are also known as black algae or roof mold. Those that tend to be the most humid furthermore they will only appear on the north side of the roof.

Have questions about those ugly black streaks on your 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. As we said about green algae on roofs the presence of these black fungal or algal stains on the roof is sometimes an indicator that this roof area is in a shaded spot look for shade from trees or nearby buildings where you may want to be alert for development of moss or other roof problems but the level of damage from the black algae is probably low even less than that caused. The most common class of roof algae is gloeocapsa magma a bacterium that eats water and expels oxygen.

Mold does not tend to occur as often as algae. 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. Black streaks on the north and west facing and shaded areas of your asphalt shingled roof can really wreck the appearance of your home. At fiddler roof cleaning naturally we tend the see these kinds of houses more than most.

Give us a call today at 614 360 9703 to schedule a free no hassle roof inspection. Algae grow most often on wood and asphalt shingles or concrete tiles especially if they do not get a lot of sunlight. Commonly found in climates with warm humid summers it does no damage to the roofing but it certainly does looks bad. Believe it or not those black streaks only appear on roofs in certain areas of the country.

Copper tubing might work but copper strips would be a better solution to prevent black algae stains of roofs since the strips lay flat with the roof to prevent water and debris from backing up and provide more surface area for the copper molecules to wash off. Roof algae can be unsightly but it s easy to get rid of and there are several methods you can do to keep those black streaks on your roof from coming back. What mold looks like unlike algae mold growths spread out in patchy areas at first until the spots connect and fully cover your roof. Fiddler roof cleaning has an excellent post on the dangers of roof mold and algae.

These roof invaders require a moisture rich environment usually. Home owner july 28 2015 at 3 41 pm.