In southern california you see that alot of tiled roofs are covered in a green yellowish and sometimes black moss/ algae. This moss slowly but surley eats away at your roofs tiles. The moss also hold more moisture onto your tiles which can lead to leaks on your roof.

Now a lot of people think the solution to this is to pressure wash your roof. DO NOT do this. Why? Cleaning your roof with high pressure causes granular loss and can cause leaks to your roof.

So what is the best solution to cleaning a mossy roof? Its to get is soft washed. All this is, is using low pressure and a chemical solution to kill the moss away. Not only is this safe for your roof, but this will also get rid of the moss long term so it doesn’t grow back for 5-7 years. When were done cleaning your mossy roof we put zinc powder on your roof do increase the alkilinity of your roof so moss wont want to grow back.