Alternatively industrial roof cleaning chemical roof cleaner qse a work horse cleaner with black algae stain removing power qse.
Chemical to clean roof shingles.
Another great roof shingle cleaner is sodium hydroxide or better known as lye.
Even at low pressure a power washer can seriously damage shingles.
Apply a storebought or diy cleaning solution to remove the moss.
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The high powered water jets can damage shingles and remove the shingle granules that protect the roof.
Fill your low pressure agricultural sprayer with a specialized asphalt cleaning agent.
Spray it across the shingles you wish to clean wait about 20 minutes then rinse them with water.
Mix the hot water bleach and detergent in the bucket until the soap granules dissolve.
Plus chlorine bleach is a corrosive agent that can damage metal roof flashings gutters and downspouts.
Cleaning asphalt shingles is an important part of protecting your roof.
It can lighten the color of your roof and bleach anything the overspray contacts.
This chemical is commonly used in products like drain cleaner and oven cleaner.
Bleach is caustic to the roof and plants.
Use a sprayer attached to garden hose that s filled with equal parts chlorine bleach and water.
This is the best way to clean a roof if you have asphalt shingles.
Clean shingles on a cool humid overcast day to ensure that the cleaner doesn t dry too fast on the roof.
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Today s homeowner states that algae stains can be removed by cleaning though they usually return.
Of laundry strength liquid chlorine bleach and water.
At most the bleach should be 50 of the solution.
To stay safe suit up in long sleeves pants and safety goggles.
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Pour the mixture into the garden sprayer.
Optionally add cup 177 5 ml of a non ammonia heavy cleaner such as tsp trisodium phosphate for extra cleaning power.
Not for use on metal roofs or homes with out gutters any of these roof cleaning solutions will be effective for removing mildew moss roof algae etc from fiberglass asphalt shingles.
Sodium hydroxide must be used carefully in order to not damage the roof or be harmful to any surrounding plants.
A home cleaner can be made with a quart 95 l of standard laundry bleach and a gallon 3 8 l of water.
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And the runoff harms plants.
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