Spray the moss covered roof with a moss control product or sprinkle the material on depending on the product formulation.
How do i stop moss growing on my roof.
Regular maintenance and cleaning is often enough to keep your roof in a healthy condition.
Consider trimming tree branches to expose your roof to more direct sunlight.
Potassium salts of fatty acids applied using a hose end spray attachment.
Most of it should come off quite easily although you might have to scrape out a few stubborn areas using your scraper.
First keep your roof clean.
When rainwater falls on these ridges a coppery residue is released and runs down the roof discouraging moss growth.
That water is sometimes leaked in between shingles and through the roof.
Homeowners can take two approaches to prevent moss growth.
At least twice a year be sure to clean out your gutters and downspouts.
Overhanging tree branches help create the perfect environment for moss to grow.
The best way to prevent moss from growing on your roof is to minimize its ideal growing environment.
Stop a moss problem from returning by installing strips of zinc or copper coated sheet metal just below the top ridge on both sides of the roof.
The simplest way to do this is to climb onto the roof with a length of hose attached to a water source and wash the moss off.
Keep your gutters clean and remove fallen branches and debris.
Using high pressure water is likely to create some of its own damage by delaminating tiles and even potentially lifting roof tiles or dislodging flashing and eroding the pointing of parapet walls.
Copper is more toxic to moss and algae but zinc is.
If you want to avoid damage to your roof here are some ways to prevent moss from growing on your roof from the start.
Over time as rain falls zinc residue coats the roof to prevent moss growth.
You can prevent moss from growing on your roof tiles by installing copper ridges to your roof.
Limit shade and clear any debris that could lead to moisture on your roof.
In fact one way to prevent moss from growing in the first place is to attach zinc strips to the ridge of your roof.
Removing buildup and debris on your roof goes a long way in ensuring that moss algae and lichen have less of a chance of spreading.
The branches and leaves offer shade from the intense sun.
Fix a length of copper or zinc wire all the way across the top of your ridge tiles.
