Asphalt or composite roof tiles can easily get moss growing between them. Getting rid of the moss will help extend the life of your roof tiles. This is a guide about removing moss from asphalt roof tiles.
For the past 30 years I have done the following:
Dilute plain laundry bleach with water, one part bleach and three parts water. Apply with a pump garden sprayer. Apply when the moss is reasonably dry and thirsty like several days after the last rain. Wet it all; any you miss will not be killed.
In a few days the moss will turn brown and can be swept/brushed away. I just leave the dead moss alone and eventually it will go away. Anyone concerned about the bleach on the roof understand that sunlight will neutralize the chlorine shortly.
By Caidok from Poulsbo, WA
I was wondering if anyone knew how to remove Moss from my asphalt roof tile. I remember hearing about a laundry detergent but I can't remember which one? Laura From BC