It may also help to install a metal strip on your roof, which will oxidize and make the surface inhospitable for moss (as well as lichen and algae). Read the original article on House Digest.

really break that seal that your house or roof typically has. So, moss really loves growing especially on roofs that have a lower pitch. When it has a higher pitch, it has a harder time grabbing ...

Your roof is carefully inspected. The inspection helps find any moss, algae or debris that has built up. Problem spots like cracked shingles or areas where moss is growing thick are noted.