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.
How to clean roof shingles moss.
Apply the cleaning agent to the roof.
In severe cases it may take more than one bleach treatment to kill all of the moss.
But that would only make sense if the shingles were worn out.
Never use a pressure washer to clean an asphalt shingle roof as this w ill cause granule loss and very likely premature failure of the roof system.
After applying the cleaning agent allow it to work its magic for about 20 minutes.
6 to kill existing moss and lichen make a cleaning solution of equal parts bleach and water.
Cleaning asphalt shingles of clumps of moss or algae that have taken root in the roof can feel like an overwhelming endeavor.
Apply a storebought or diy cleaning solution to remove the moss.
After 15 to 20 minutes rinse the solution off with a sprayer that has enough force to dislodge algae and moss without damaging the shingles.
The high powered water jets can damage shingles and remove the shingle granules that protect the roof.
There are many ways to remove moss that tends to grow in shaded areas.
8 spray the cleaning solution onto the shingles using a garden sprayer.
5 continue installing zinc strips across length of roof end to end leaving a 1 8 in.
Once the moss has been thoroughly eradicated from the roof take steps to keep moss from returning.
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.
After clambering out onto your roof spray the asphalt shingles you wish to clean.
To learn how to prevent moss and algae from getting on your shingles keep reading.
7 protect nearby shrubs and lawn with plastic tarps.
Moss will loosen over time and may be removed with a leaf blower.
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.
Generally you ll need to point the nozzle of the spraying device toward the shingle you wish to clean then depress the handle.
Climb up to the roof and begin scraping off dead moss from the shingles using a putty knife or painter s 5 in 1 tool and working from the bottom up.
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.