After cleaning you ll also need to put some defensive measures into play to prevent roof moss from growing back.
How do you clean moss off roof tiles.
Now apply the anti moss spray across all the tiles on your roof.
Another roof cleaning approach is to use a power pressure washer on the roof.
You could replace all the roofing with new shingles dark enough to disguise the staining or with shingles laced with copper granules which are lethal to algae.
In addition to rotting and possibly damaging your roof organic material is one of the chief growing places of both moss and lichen.
Step 1 clean up any organic matter on the roof such as twigs leaves or other debris.
You can remove moss and lichens from your roof by using vinegar as a environmentally friendly weedkiller.
Before you start this step disconnect any water tanks from the gutters so no chemicals get in to your water storage.
The less expensive solution is to spray wash the roof with a 50 percent mix of water and bleach to get rid of the algae.
Before you clean moss off a roof you ll need to consider how you want to kill the plants and remove the dead layers of moss.
A blue green algae known as gloeocapsa magma could be the reason you have the algae which is spread by airborne spores.
Carefully place a ladder near the area of moss growth and don slip resistant shoes old clothes rubber gloves and eye protection.
But that would only make sense if the shingles were worn out.
Hose off and brush all moss loose from your roof shingles.
Using a power washer on a roof is a personal choice however you can read my guide called should i use a power washer on my roof to learn about any potential problems caused by.
It can also damage certain types of roof so is only a suitable option in some cases.
That way you always walk onto a dry tile.
If you do decide to use a power washer to clean the moss off your roof make sure the pressure washer is set on the lowest pressure setting to avoid damaging your roof.