Trying to diy roof algae cleaning with solutions such as bleach and water could lead to expensive roof leaks or further moisture getting trapped beneath your shingles.
Roof algae cleaning solution.
If it is too late to prevent algae treat the problem instead.
Wet forget roof and siding cleaner for easy removal of mold mildew and algae stains bleach free formula 48 oz.
The second method is to spray on a coating of stain blocking solution defy stain blocker for roofs is one product but there are other brands as well a stain blocking product can buy you up to three years of protection from algae.
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.
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.
For a larger more involved surface area pour the formula into a pump sprayer.
No pressure washers please.
It could also put you at health risk if you re not careful.
Spray forget revolutionary roof cleaner concentrate removes stains caused by algae mold and mildew this concentrated roof cleaner saves time with no rinsing required great for outdoor use on asphalt shingles wood shingles slate shingles and clay tile shingles.
Put in a spray bottle to apply to small patches.