Cleaning Moss Off Roof Shingles

Scrape off the moss.

Cleaning moss off roof shingles.

Work on one small section at a time which allows you better control of the brush and your scrubbing motions. For deep stains let the roof dry then reapply the cleaning solution and rinse it off again after no more than 30 minutes. A mixture of trisodium phosphate tsp bleach and water will also remove stains. To learn how to prevent moss and algae from getting on your shingles keep reading.

To clean either. A thick growth of moss works like a sponge keeping the roofing damp for long periods and it can lift edges of shingles making them vulnerable to blowing off in a windstorm. Both algae and moss can be easily removed from asphalt shingles with a 50 50 solution of chlorine bleach and water. 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.

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 has been thoroughly eradicated from the roof take steps to keep moss from returning. Cleaning asphalt shingles of clumps of moss or algae that have taken root in the roof can feel like an overwhelming endeavor. 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.

Hose off and brush all moss loose from your roof shingles. It s best to clean moss off a roof as soon as you notice it s growing there. Heavy moss growth can actually form dams that can cause water to back up under the shingles and damage the roof deck. There are many ways to remove moss that tends to grow in shaded areas.