You can prepare a mixture that s composed of 50 percent water and 50 percent bleach.
Get rid of moss on flat roof.
Getting rid of moss on your roof with wet forget is a breeze all you need is your bottle of wet forget a garden sprayer and tap water.
Spray the area with a moss killer which can be bought at local hardware stores and then spray the moss with water and soap.
Use sodium percarbonate its a granule which produces oxygen when mixed with water.
This breaks down the rhizoids moss roots and kills the moss.
Mix one part of wet forget with five parts of water in a garden sprayer.
Point the hose towards the top of the roof and rinse off the moss killing solution along with the dead moss.
Take hold of the soft bristle brush and scrub away any remaining moss.
Metal or toughened plastic bristles are best.
Make sure to spray in a downward direction.
Work your way up to the roof ridge.
In the seams use the sharp edge of the scraper like a dental pick to force out the moss.
Carefully get up to your roof and brush downward to knock the moss loose.
Copper is more toxic to moss and algae but zinc is.
Rinse the roof again with the hose to remove any remaining loose moss sitting on the roof.
Get a stiff bristle scrub brush and attach it to the end of a pole if you don t have a random pole hanging around a broom will work as well.
On a flat roof another solution is to clean the moss away using a hard bristled brush such as a grout brush.
In the uk we get lots of moss on roofs.
If you need to get rid of moss on your roof the hardest part is the labor required.
Mix the bleach with the water in a large bucket.
Spray washing the moss off your roof is the easiest method to get rid of it.
Given the nature of a flat roof water will settle especially on older surfaces therefore it may be required to repeat this moss killing process every 12 24 months by applying a new coat of baticlean cr or alternatively just wait until the first signs of new moss growth appear before applying a new coat.
It also kills the spores which enables the moss to spread.
It doesnt harm plants or grass so it doesnt matter if there is run off from the roof.