Green Algae On Roof Tiles

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

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. 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. There is no damage to the shingles.

Wood shingles or wood shakes roofing. Living in a humid area of the country like florida you ve probably seen your asphalt shingle roofs with unsightly dark streaks on them. Tile or mexican tile roofs. Roof algae generally have a black green hue.

The algae can cause black or gray streaks that seem to run down your roof. You may think you have roof algae when really you have moss mildew or mold. Commonly found in climates with warm humid summers it does no damage to the roofing but it certainly does looks bad. 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.

The shingles look brand new. Metal roof or metal roofing. How to get rid of algae on the roof. The green color comes from chlorophyll which is the same substance that makes plants green.

Here s what the shingles looked like after removing the green algae.