It needs heat moisture and nutrients to grow.
Green algae on roof tiles.
Step 3 check for cleanliness and rinse.
The black mold like stains and streaks that appear on roofs particularly light colored asphalt shingles is actually a blue green algae gloeocapsa magma.
It does its best to kill it and take away the stains.
The only way to take care of it is to use a high base chemical solution like zinc sulfate.
The algae can cause black or gray streaks that seem to run down your roof.
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.
Moss is thick algae is paper thin.
Roof moss removal usually requires a broom or heavy stream of water.
We ll explain more of that in a bit.
Copper strips prevent the growth of moss and algae.
It is easily spread and causes those colorful stains on so many roofs.
Cleaning step 2 make and apply the bleach solution.
Known as black algae or roof mold gloeocapsa magma is usually blamed on dirt accumulation mold and mildew or defective shingles.
Algae grow most often on wood and asphalt shingles or concrete tiles especially if they do not get a lot of sunlight.
Put on rubber gloves and a breathing mask before proceeding you so you can.
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.
Take a scrub brush lightly scrub the shingles.
Algae is just a thin film of organic growth that can be removed by washing the roof with certified organic oxygen bleach.
Never use a.
Here in oregon mostly blue green algae grows on the outside of the house or on the roof shingles.
Often algae that is identified as green when studied microscopically also looks black or quite dark on a roof surface.
The oxygen bleach starts to go ahead and attack the roof algae.
It causes the black stains you may see on your roof.
The most common class of roof algae is gloeocapsa magma a bacterium that eats water and expels oxygen.
Allow the solution to soak into the shingles for at least 15 minutes.
Algae growth is common on roof surfaces of several materials including asphalt shingles concrete and clay roof tiles and even slate.
Spray it on the roof and you need to keep the roof wet with the solution for about ten or fifteen minutes.
Moss is a thick organic growth.
Step 4 take precautions.
Roof moss removal and algae tips.