The high powered water jets can damage shingles and remove the shingle granules that protect the roof.
How to clean moss from roof shingles.
Both algae and moss can be easily removed from asphalt shingles with a 50 50 solution of chlorine bleach and water.
Use the tool to gently lift away matted moss that has gathered on the flat sections of the shingles.
Work on one small section at a time which allows you better control of the brush and your scrubbing motions.
Scrape off the moss.
There are many ways to remove moss that tends to grow in shaded areas.
Heavy moss growth can actually form dams that can cause water to back up under the shingles and damage the roof deck.
How to remove roof moss fast before it damages your shingles.
You could replace all the roofing with new shingles dark enough to disguise the staining or with shingles laced with copper granules which are lethal to algae.
Apply a storebought or diy cleaning solution to remove the moss.
Before applying a moss remover cleaner use a scrub brush 3 15 the home depot or a long handled soft bristle brush to gently scrape or pluck moss from the roof shingles or tiles.
Once the moss has been thoroughly eradicated from the roof take steps to keep moss from returning.
The less expensive solution is to spray wash the roof with a 50 percent mix of water and bleach to get rid of the algae.
It s best to clean moss off a roof as soon as you notice it s growing there.