We use mild pressure in our equipment that spreads the special cleaning solution in a nice, easy, but gentle spray. High pressure is not needed or wanted to clean a roof. The nozzle of the wand on our professional equipment sprays in a wide pattern which covers a lot of roof territory quickly and easily: all without the use of high, damaging water pressure.

Even though the cleaning solution can be sprayed from a nozzle, we don’t want it to run right off of a sloped roof. The cleaning solution needs to sit and soak onto the mold, mildew and dirt. So, surfactant is added to the cleaning solution to help it stick to roof where it has been sprayed, rather than just running right off the edge of the roof and into the gutter.