Why Do Some Roofs Grow Algae

Algae grow most often on wood and asphalt shingles or concrete tiles especially if they do not get a lot of sunlight.

Why do some roofs grow algae.

This is why it s better to leave roof cleaning to the professionals. Chlorine bleach will kill the mold on shingle roofs. Metal particles can flow down the roof with rainwater killing off any algae growth in its path. The biggest problem is the streaks the algae cause.

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. 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. Though these shingles do cost more they contain copper particulate which is toxic to algae. Gloeocapsa has the ability to form a protective darkly pigmented outer coating that shields the algae from damaging uv rays.

Algae on the 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. Algae mold and moss grow well on rooftops because there s often some standing water on the roof. The algae streaks can be washed off but doing so properly is complex and tricky.

If the cleaning isn t handled correctly shingle granules can be washed off your roof compromising your roof s protection. The most common class of roof algae is gloeocapsa magma a bacterium that eats water and expels oxygen. They also appear specifically on the north side of the roof. Although algae can be found on all types of roofing it tends to be most common on asphalt shingles.

Algae spores are airborne. How do you deal with the algae. A growing problem this website requires certain cookies to work and uses other cookies to help you have the best experience. The black streaks on your roof don t appear for everyone they usually only appear on roofs in humid parts of the country.

You may think you have roof algae when really you have moss mildew or mold. 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. Add the high humidity and sunlight to that standing water and you have the ideal growth conditions for mold and algae. Read more below to find the causes of why mold and algae grow on your roof and how to remove it.

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. Roof algae generally have a black green hue. Why washing your roof yourself might be a bad idea. Known as black algae or roof mold gloeocapsa.

Why do shingles get algae.