Both algae and moss can be easily removed from asphalt shingles with a 50 50 solution of chlorine bleach and water.
Clean moss from roof shingles.
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Dispense the moss killer in lines about 2 feet apart parallel to the roof ridge.
Using bleach is recommended by most shingle roof manufactures and the arma asphalt roofing manufactures association.
For deep stains let the roof dry then reapply the cleaning solution and rinse it off again after no more than 30 minutes.
To learn how to prevent moss and algae from getting on your shingles keep reading.
7 protect nearby shrubs and lawn with plastic tarps.
Carefully place a ladder near the area of moss growth and don slip resistant shoes old clothes rubber gloves and eye protection.
It s best to clean moss off a roof as soon as you notice it s growing there.
Work on one small section at a time which allows you better control of the brush and your scrubbing motions.
6 to kill existing moss and lichen make a cleaning solution of equal parts bleach and water.
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4 apply a dab of sealant to every nail head and run a bead of sealant under each shingle.
5 continue installing zinc strips across length of roof end to end leaving a 1 8 in.
Space between the strips.
Once the moss has been thoroughly eradicated from the roof take steps to keep moss from returning.
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.
There are many ways to remove moss that tends to grow in shaded areas.
To apply dry powder moss killer place an extension ladder against the house and climb to the roof.
Moss will loosen over time and may be removed with a leaf blower.
Run the water for a moment until the.
Heavy moss growth can actually form dams that can cause water to back up under the shingles and damage the roof deck.
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.
Hose off and brush all moss loose from your roof shingles.
Cleaning asphalt shingles of clumps of moss or algae that have taken root in the roof can feel like an overwhelming endeavor.
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.
In severe cases it may take more than one bleach treatment to kill all of the moss.