Green Algae On Roof Tiles

There is no damage to the shingles.

Green algae on roof tiles.

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. Here s what the shingles looked like after removing the green algae. Metal roof or metal roofing. How to get rid of algae on the 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. The green color comes from chlorophyll which is the same substance that makes plants green. Roof algae generally have a black green hue. The shingles look brand new.

The algae can cause black or gray streaks that seem to run down your roof. The most common class of roof algae is gloeocapsa magma a bacterium that eats water and expels oxygen. Commonly found in climates with warm humid summers it does no damage to the roofing but it certainly does looks bad. Remember work on a cool roof in the shade so the stain solver solution doesn t evaporate.

Living in a humid area of the country like florida you ve probably seen your asphalt shingle roofs with unsightly dark streaks on them. 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. You may think you have roof algae when really you have moss mildew or mold. Common algae that form on roof surfaces including asphalt shingles and roll roofing include the algae shown above and gleocapsa magma a species that generally appears black on the roof surface but under some lighting conditions even on the roof gleocapsa magma can appear as a blue green color as might other algae genera species.

Wood shingles or wood shakes roofing.