Hose off and brush all moss loose from your roof shingles.
Removing moss from asphalt roof.
Once moss has adhered to wood shingles the moss can be harder to remove than it is from the relatively smoother planes of composite or asphalt shingles.
Once the moss has been thoroughly eradicated from the roof take steps to keep moss from returning.
Using bleach is recommended by most shingle roof manufactures and the arma asphalt roofing manufactures association.
Keeping branches trimmed back from the roof and removing any debris that begins to accumulate should be part of a regular roof maintenance program.
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.
Carefully place a ladder near the area of moss growth and don slip resistant shoes old clothes rubber gloves and eye protection.
Once the moss is a thick mat it becomes a sponge that soaks up and retains all moisture.
Algae and moss growth on roofs at a minimum is an unsightly nuisance.
There are many ways to remove moss that tends to grow in shaded areas.