Green Algae On Roof Tiles

The oxygen bleach starts to go ahead and attack the roof algae.

Green algae on roof tiles.

Roof moss removal and algae tips. 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. Known as black algae or roof mold gloeocapsa magma is usually blamed on dirt accumulation mold and mildew or defective shingles. Here in oregon mostly blue green algae grows on the outside of the house or on the roof shingles.

Algae growth is common on roof surfaces of several materials including asphalt shingles concrete and clay roof tiles and even slate. Algae on a roof surface appears as a thin green coating which is mostly a cosmetic concern. Take a scrub brush lightly scrub the shingles. Commonly found in climates with warm humid summers it does no damage to the roofing but it certainly does looks bad.

It s actually just a blue green algae spread by airborne spores. Step 3 check for cleanliness and rinse. Moss is thick algae is paper thin. It is easily spread and causes those colorful stains on so many roofs.

It does its best to kill it and take away the stains. Roof moss removal usually requires a broom or heavy stream of water. Algae grow most often on wood and asphalt shingles or concrete tiles especially if they do not get a lot of sunlight. Allow the solution to soak into the shingles for at least 15 minutes.

The algae can cause black or gray streaks that seem to run down your roof. Often algae that is identified as green when studied microscopically also looks black or quite dark on a roof surface. Step 4 take precautions. The most common class of roof algae is gloeocapsa magma a bacterium that eats water and expels oxygen.

It causes the black stains you may see on your roof. We ll explain more of that in a bit. The only way to take care of it is to use a high base chemical solution like zinc sulfate. Never use a.

The black mold like stains and streaks that appear on roofs particularly light colored asphalt shingles is actually a blue green algae gloeocapsa magma. Spray it on the roof and you need to keep the roof wet with the solution for about ten or fifteen minutes. Algae is just a thin film of organic growth that can be removed by washing the roof with certified organic oxygen bleach. Roof algae generally have a black green hue.

It needs heat moisture and nutrients to grow. Cleaning step 2 make and apply the bleach solution. The green color comes from chlorophyll which is the same substance that makes plants green.