Cleaning Moss Off Roof Shingles

Use the tool to gently lift away matted moss that has gathered on the flat sections of the shingles.

Cleaning moss off roof shingles.

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. For deep stains let the roof dry then reapply the cleaning solution and rinse it off again after no more than 30 minutes. Once the moss has been thoroughly eradicated from the roof take steps to keep moss from returning.

It s best to clean moss off a roof as soon as you notice it s growing there. Hose off and brush all moss loose from your roof shingles. 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. Oxygen bleach lightens stains as well and is less harmful to the environment but it doesn t produce as immediate or dramatic an effect as chlorine bleach.

Heavy moss growth can actually form dams that can cause water to back up under the shingles and damage the roof deck. 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. There are many ways to remove moss that tends to grow in shaded areas. To clean either.

A mixture of trisodium phosphate tsp bleach and water will also remove stains. 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. Scrape off the moss.