Removing Black Algae From Roof

These roof invaders require a moisture rich environment usually.

Removing black algae from roof.

Moss is a thick organic growth. The black spots discoloring your asphalt roof are more than likely the pervasive and prevalent algae known as gloecapsa magma. What is roof algae. The streaks look like mold but they re actually algae colonies that form in your shingles and feed on moisture and the limestone filler agents in the shingles.

However this comes with risks. How to remove algae from the roof. Bleach will neutralize and kill algae off your roof and remove the black streaking. The gloeocapsa magna bacteria makes its way to roof tops as algae spores carried by the wind squirrels birds and even insects.

Mix up oxygen based cleaner with water in a five gallon bucket following the instructions. Green algae on swing set before using wet forget. Roof moss removal and algae tips. Bleach is corrosive and dangerous to plants and pets.

It must be diluted before applied and plants must be rinsed down. Bill october 16 2011 at 4 27 pm. Algae is just a thin film of organic growth that can be removed by washing the roof with certified organic oxygen bleach. It cleans up readily but comes back in 6 to 8 weeks.

Commonly found in climates with warm humid summers it does no damage to the roofing but it certainly does looks bad. Black stains on asphalt shingle roof caused by algae growth. Copper strips prevent the growth of moss and algae. Thanks for the tips on how to remove black algae stains from a roof.

Once on the roof the bacteria begin to feed on the limestone filler used to create the protective granules asphalt shingles are known for. To clean an asphalt shingle roof to remove black algae stains. Roof moss removal usually requires a broom or heavy stream of water. Wet forget outdoor cleaner works with the wind and the rain to wash away green and black algae stains over time.

I have run into what looks like black roof algae on a fiberglass deck below a kynar painted metal roof the roof is ok in a coastal north carolina environment. Moss is thick algae is paper thin. If you ve already removed the algae from your roof once and you want to make sure you don t get it again or if you re building a new house and you want to make sure that your roof doesn t get those black streaks from algae there are 2 things you can do to prevent the algae from forming. The bacteria also photolyzes any moisture on the roof to produce oxygen.

The black mold like stains and streaks that appear on roofs particularly light colored asphalt shingles is actually a blue green algae gloeocapsa magma.