Moss is a thick organic growth.
White algae on roof tiles.
Both moss and lichen like a slightly alkaline to an acidic surface as the combination of acid rain and alkaline tile concrete produces a very weak salt solution which it likes.
The most common class of roof algae is gloeocapsa magma a bacterium that eats water and expels oxygen.
In some cases it may require the use of chemicals.
Several natural remedies can kill the lichens and restore the look of your roof tiles.
Stop roof algae from coming back.
Moisture increases the chance of mold growth which can damage the roof tiles.
If the surface of the tile or slate is rough then it gives the nutrient something to stop it being washed off the roof.
The spraying application must be done in such a way to not damage the surface of the tile.
When it rains a slight amount of zinc dissolves from the strips and coats the roof inhibiting algae and fungus.
F cyanobacteria concrete roof tiles very common in southern california offer a attractive breading grounds for the algae.
It is responsible for creating the black staining on the roof.
Now if we were to talk about some of the general characteristics then you will find that the products all have a few things in common.
Wet and forget 805048 best product to clean roof tiles.
To keep the algae from coming back insert 6 inch wide strips of zinc or copper under the row of shingling closest to the roof peak leaving an inch or two of the lower edge exposed to the weather.
Zinc strips left have been used for many years as an algae preventative.
Attached near the peak of the roof.
Put most basically this bacteria phtolyze eat water and expel oxygen.
Algae grow most often on wood and asphalt shingles or concrete tiles especially if they do not get a lot of sunlight.
Copper strips prevent the growth of moss and algae.
Roof algae generally have a black green hue.
Roof moss removal usually requires a broom or heavy stream of water.
These are some of the products in our list for the best roof algae cleaner.
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.
You may think you have roof algae when really you have moss mildew or mold.
Algae is just a thin film of organic growth that can be removed by washing the roof with certified organic oxygen bleach.
Once again it is recommended that you contact a licensed contractor to perform such work.
To remove dirt algae or mildew from the roof surface a high pressure power washer sprayer can be used.
Roof algae is most commonly gloeocapsa magma which isn t even algae but a bacteria.
