For any areas that don t wash away with pressurized water fill a.
How to clean high roof dirty.
Addressing stubborn spots 1.
There are two methods for removing algae stains.
Use a sprayer attached to garden hose that s filled with equal parts chlorine bleach and water.
For the many homeowners who want to return the roof to its original color there are two methods for dealing with a stained roof.
Opt for something soft to protect your roof s paint and parts.
Pour the mixture into the garden sprayer.
I mix up my cleaner in bug sprayer container and spray it all over the roof.
Removal make algae a thing of the past.
This is the best way to clean a roof if you have asphalt shingles.
Use a cloth or sponge to clean.
Just spray it on and leave it.
Here s how i do it.
Mix water and mild detergent for stubborn areas.
Mix the hot water bleach and detergent in the bucket until the soap granules dissolve.
The best way to clean a roof is to use a roof cleaning chemical and let it sit for awhile.
Scrub problem areas with your.
Clean shingles on a cool humid overcast day to ensure that the cleaner doesn t dry too fast on the roof.
Chemicals and metal strips.
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It will rinse off the next time it rains.
Mix the hot water bleach and detergent and pour into the garden sprayer.