Spray landscape plants near the house with water and cover them with tarps to protect them from chemical overspray and runoff.
How to clean moss off asphalt roof shingles.
Apply a storebought or diy cleaning solution to remove the moss.
Wait for a calm windless day to clean your roof.
If your moss problem requires more than.
Next rinse the shingles thoroughly with a garden hose at low pressure.
Instead gently pray the roof down with a mix of half bleach and half water.
Allow the solution to soak into the shingles for at least 15 minutes.
Apply liquid cleaners with a hand pump sprayer or with a pressure washer on the lowest setting so as not to cause any damage to the shingles.
Wear protective clothing including long sleeves pants and gloves as.
Start from the top shingle and rinse downward to prevent water seepage.
How to clean algae and moss off asphalt shingles.
Power washing your roof will reduce its lifespan.
A homemade cleaner of one part liquid chlorine bleach to one part of water can also be effective in removing and killing moss that clings to the roof tiles.
Let the mixture sit on the roof for 20 minutes before you rinse it off.
If they are severely molded you may want to give it a little longer.
Hose off and brush all moss loose from your roof shingles.
Carefully place a ladder near the area of moss.