Why Do Some Roofs Grow Algae

If a new roof is in order then suggest gaf shingles with stainguard protection to help ensure the beauty of a roof against unsightly blue green algae.

Why do some roofs grow algae.

This is what makes those unattractive black streaks on your roof. Why mold algae grow on your roof and how to remove it todays post is from devyn earls of orlando s a 1 quality roof cleaning and restoration company. They also appear specifically on the north side of the roof. Read more below to find the causes of why mold and algae grow on your roof and how to remove it.

Algae on the roof. The algae streaks can be washed off but doing so properly is complex and tricky. Metal particles can flow down the roof with rainwater killing off any algae growth in its path. Algae and other microscopic growths on the roofs are an age old problem but the solution is on the mind of both roofing contractors and homeowners.

Why do shingles get algae. Add the high humidity and sunlight to that standing water and you have the ideal growth conditions for mold and algae. The most common class of roof algae is gloeocapsa magma a bacterium that eats water and expels oxygen. Why washing your roof yourself might be a bad idea.

If the cleaning isn t handled correctly shingle granules can be washed off your roof compromising your roof s protection. You may think you have roof algae when really you have moss mildew or mold. A growing problem this website requires certain cookies to work and uses other cookies to help you have the best experience. Known as black algae or roof mold gloeocapsa.

The biggest problem is the streaks the algae cause. Algae algae is trickier than moss to prevent but some shingle manufacturers are making strides with copper composite shingles. Roof algae generally have a black green hue. Blue green algae the most common form that grows on roofs is generally not harmful to the roofing materials.

Algae spores are airborne. Chlorine bleach will kill the mold on shingle roofs. They have been in business over the last 20 years specializing in low pressure cleaning with hundreds of satisfied residential and commercial customers both large and small. Though these shingles do cost more they contain copper particulate which is toxic to algae.

Algae grow most often on wood and asphalt shingles or concrete tiles especially if they do not get a lot of sunlight. Algae mold and moss grow well on rooftops because there s often some standing water on the roof. Algae can grow in moist shaded areas so if a homeowner has trees hanging over their roof tell them to trim them back to let the sunshine warm and dry the roof. Gloeocapsa has the ability to form a protective darkly pigmented outer coating that shields the algae from damaging uv rays.

How do you deal with the algae.