How To Clean Moss Off Roof Shingles

It s best to clean moss off a roof as soon as you notice it s growing there.

How to clean moss off roof shingles.

To learn how to prevent moss and algae from getting on your shingles keep reading. Unlike algae moss can be detrimental to asphalt shingle performance. 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. In severe cases moss build up can cause lateral water movement resulting in moisture damage to the roof deck or may even cause leaks.

There are many ways to remove moss that tends to grow in shaded areas. Once the moss has been thoroughly eradicated from the roof take steps to keep moss from returning. Carefully place a ladder near the area of moss growth and don slip resistant shoes old clothes rubber gloves and eye protection. Both algae and moss can be easily removed from asphalt shingles with a 50 50 solution of chlorine bleach and water.

For deep stains let the roof dry then reapply the cleaning solution and rinse it off again after no more than 30 minutes. Laundry strength bleach is sufficient or you can opt for any of a number of proprietary roof cleaners some of which don t contain. Hose off and brush all moss loose from your roof shingles. Work on one small section at a time which allows you better control of the brush and your scrubbing motions.