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