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.
How to clean moss off shingles on roof.
No pressure washers please.
Then spray the cleaner onto the shingles photo 1.
That ll prevent the cleaner from drying out too quickly.
Both algae and moss can be easily removed from asphalt shingles with a 50 50 solution of chlorine bleach and water.
In this video this old house general contractor tom silva explains how to remove roof moss and prevent it from coming back.
Apply the vinegar to the moss and lichens on the roof with the spray bottle.
For deep stains let the roof dry then reapply the cleaning solution and rinse it off again after no more than 30 minutes.
Before applying a moss remover cleaner use a scrub brush 3 15 the home depot or a long handled soft bristle brush to gently scrape or pluck moss from the roof shingles or tiles.
They re likely to damage the shingles just be sure to wet your foundation plantings first and rinse everything in clean water when you re done.
Then use a long handled soft bristle scrub brush to remove the moss from the roof scrubbing from the top down to avoid lifting.
Next rinse the shingles thoroughly with a garden hose at low pressure.
2 slide sacrificial zinc strip underneath the loosened shingles.
If some remains apply the cleanser again wait 10 more minutes and repeat the rinse process.
Run your gloved hand over the shingles to check for any slimy mold remaining after you re finished rinsing.
To learn how to prevent moss and algae from getting on your shingles keep reading.
Wait about 20 minutes then rinse.
It s best to clean moss off a roof as soon as you notice it s growing there.
1 slide a margin trowel under shingles to unstick them from the ones below.
Laundry strength bleach is sufficient or you can opt for any of a number of proprietary roof cleaners some of which don t contain bleach lye or other potentially harmful chemicals.
Before applying the cleaner spray the roof with water to cool it down.
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.
Since bleach and some cleaners can be harmful to plants and humans it s a good idea to take.
The less expensive solution is to spray wash the roof with a 50 percent mix of water and bleach to get rid of the algae.
Get off the roof and apply the vinegar to the moss and lichens around the edge.
Start from the top shingle and rinse downward to prevent water seepage.
3 secure the strip with roofing nails.