Use a three gallon pump sprayer, use one gallon of SH and two gallons of water (H2O) add about 4 oz. of liquid dish soap and spray from the roof top working your way down. clean your roof when it super hot out in the baking sun. It will kill the SH and dry before it's clean.Mar 5, 2013
What do professionals use to clean roofs?
Sodium Hypochlorite, Sodium Percarbonate or Sodium Hydroxide for Roof Cleaning? The most popular chemical used today by roof cleaners is still “bleach” or sodium hypochlorite. It is also the chemical of choice of ARMA, the Asphalt Roofing Manufacturers Association.
What is the best chemical to clean a roof?
Experts agree that sodium hydroxide is the product of choice for homeowners who want to clean their concrete, tile, and the materials of their slate roof. Another chemical solution that can be used for cleaning your roof is sodium hypochlorite. This substance turns into salt when all traces of water have evaporated.Mar 7, 2020