I won t reveal my mix ratio but it certainly does not have to be flooded.
Roof cleaning mixture.
If it s something like scratch tile then it will take like 100 gallons for me.
Mix the hot water bleach and detergent in the bucket until the soap granules dissolve.
Folks do not realize that one gallon of chlorine not bleach will kill bacteria in 10 000 gallons of water.
And proper rinsing is without a doubt of utmost importance.
On a standard shingle roof here i can do a 2000 sq ft house with 50 gallons of mix easy.
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One is the guy on the roof spraying cleaning the roof and the other ones job is to spray everything and anything that could get over sprayed with the roof cleaner.
The secret to roof cleaning is the proper mixture of chemicals.
Clean shingles on a cool humid overcast day to ensure that the cleaner doesn t dry too fast on the roof.
We clean roofs all day long.
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Pour the mixture into the garden sprayer.
No matter what method used.
3000 psi is overkill and an unacceptable cleaning method for your roofing system whether it is an asphalt roof tile roof cedar roof or even a metal roof.
Barrel tiles tend to take more mix also because everything rolls off the tops of the tiles and channels itself in the valleys of the tiles.
After spraying the roof with the mixture allow it to sit on the surface for 15 to 20 minutes before rinsing thoroughly with clean water.
But once in a while it just gets way to hot.