Roy Sanders
New member
This is my wifes parents restuarant. They put up a painted metal roof (pole barn metal) a couple of years ago. Since then the grease from the exhaust vent has dripped down the roof. It is probably a couple of panels wide and from top to bottom. What chem can I get to take this off. I have tried to use a couple of degreaser and heat to get this off to no avail. It started to take the paint off the metal and I want to avoid that. The only washer I have available is my 4gpm@2500psi. It does produce heat through three heat exchangers up to 230 degrees but will not hold that temp at high pressure.