Roof Tile Fungus

It s actually just a blue green algae spread by airborne spores.

Roof tile fungus.

Roof lichen are symbiotic organism where fungus and algae live in a dependent relationship unfortunately their relationship can cause real damage to your 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. Known as black algae or roof mold gloeocapsa magma is usually blamed on dirt accumulation mold and mildew or defective shingles. It s actually just a blue green algae spread by airborne spores.

Roofs and others designed to remove and or inhibit moss and fungus growth on siding masonry surfaces and even lawns. Lichen are sutborn and are very diffcult to remove unlike the roof algae roof lichen are persistent and deeply adhered to the roof. It is easily spread and causes those colorful stains on so many roofs. Known as black algae or roof mold gloeocapsa magma is usually blamed on dirt accumulation mold and mildew or defective shingles.

Commonly found in climates with warm humid summers it does no damage to the roofing but it certainly does looks bad. Their formulae use tried and true zinc compounds that linger on surfaces to provide continuing protection. Some black stains on asphalt roof shingles are caused by a black algae sometimes misnamed as a black fungus or even a mildew such as that shown in the photograph here.