Green Algae On Roof

The algae can cause black or gray streaks that seem to run down your roof.

Green algae on roof.

Here s what you do. The black stains you see on your roof aren t the algae itself but a hard dark coating it creates to protect itself from the sun s harmful ultraviolet rays. Roof algae generally have a black green hue. They are more of an aesthetic issue since they make the roof look horrible.

The black streaks on your roof don t appear for everyone they usually only appear on roofs in humid parts of the country. The way to clean off roof algae is to go ahead and mix up some oxygen bleach with water. The green color comes from chlorophyll which is the same substance that makes plants green. Some roofs also have regular green algae that comes from trees and things that are near the houses.

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. Both of these algae can be cleaned from the roof however the green algae is far easier to remove than the black algae. Well there s a way to clean that off as well. It s actually just a blue green algae spread by airborne spores.

The black mold like stains and streaks that appear on roofs particularly light colored asphalt shingles is actually a blue green algae gloeocapsa magma. The most common class of roof algae is gloeocapsa magma a bacterium that eats water and expels oxygen. Blue green algae on roofs. How to get rid of algae on the roof.

It causes the black stains you may see on your roof. You can also opt for the safer option of making your own solution. Algae grow most often on wood and asphalt shingles or concrete tiles especially if they do not get a lot of sunlight. What is roof algae.

Commonly found in climates with warm humid summers it does no damage to the roofing but it certainly does looks bad. When it comes to removing algae from your roof you can opt to buy cleaning products from your local hardware store. 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. Should i avoid chlorine.

Known as black algae or roof mold gloeocapsa magma is usually blamed on dirt accumulation mold and mildew or defective shingles. The green and black algae in my opinion are not harmful to the actual roofing material because they do not develop roots.