Green Algae On Roof Tiles

Living in a humid area of the country like florida you ve probably seen your asphalt shingle roofs with unsightly dark streaks on them.

Green algae on roof tiles.

The black mold like stains and streaks that appear on roofs particularly light colored asphalt shingles is actually a blue green algae gloeocapsa magma. Remember work on a cool roof in the shade so the stain solver solution doesn t evaporate. Algae grow most often on wood and asphalt shingles or concrete tiles especially if they do not get a lot of sunlight. Wood shingles or wood shakes roofing.

Metal roof or metal roofing. The green color comes from chlorophyll which is the same substance that makes plants green. What is roof algae. A blue green algae known as gloeocapsa magma could be the reason you have the algae which is spread by airborne spores sometimes it can also be caused by an accumulation of mildew mold dirt or defective shingles.

The algae can cause black or gray streaks that seem to run down your roof. There is no damage to the shingles. Commonly found in climates with warm humid summers it does no damage to the roofing but it certainly does looks bad. The most common class of roof algae is gloeocapsa magma a bacterium that eats water and expels oxygen.

How to get rid of algae on the roof. If you have green stains on your deck or siding it s probably due to either cholophyta algae green algae or a cyanobacterium related to gloeocapsa magma. Tile or mexican tile roofs. You may think you have roof algae when really you have moss mildew or mold.

Roof algae generally have a black green hue.