The most effective method of cleaning algae and moss from a roof is with a 50 50 mix of laundry strength liquid chlorine bleach and water.
Moss on roof shingles.
How to kill moss growth on roof shingles.
Use the tool to gently lift away matted moss that has gathered on the flat sections of the shingles.
Carefully place a ladder near the area of moss growth and don slip resistant shoes old clothes rubber gloves and eye protection.
While a small layer of thin moss isn t too troublesome large clumps of moss can degrade shingles get beneath them and create opportunities for leaks.
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.
The cost depends on the size of your roof the amount of moss and the labor rates in your area.
Using bleach is recommended by most shingle roof manufactures and the arma asphalt roofing manufactures association.
Browse owens corning roofing shingles by color shingle lines price features wind resistance and or warranty to find the right roof for your home.
Moss growing on a roof lifts the shingles and allows water to seep underneath and rot the roof deck.
When the moss is dead scrub it off then install zinc flashing to prevent more moss growth.
Moss and lichens are more than a cosmetic issue on many kinds of roofing materials asphalt shingles roll roofing wood shingle roofs wood shake roofs.
Moss growth can create several problems on shingle roofs.
Work on one small section at a time which allows you better control of the brush and your scrubbing motions.
Hose off and brush all moss loose from your roof shingles.
To remove moss you first have to kill it.
By holding moisture against the roof surface lichens but more so moss speed the wear of the asphalt shingle surface in freezing climates by increasing frost damage to the mineral granule.
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.
As a rule of thumb professionally removing moss will cost about 5 of what it would take to replace your roof altogether.