For the absolutely last time. Used dawn dish wash soap and all the stuff that Dicor gave out at the Fall rally..woked really good the roof and awnings are nice and clean..however the work and effort was not worth it..so the roof is dirty..so what..will the dirty roof police get me?? Do people stand on overpasses and report campers with dirty roofs?? Whatever squirts off with a hose will do from now on. I may pay to have it done or if one of our adult male kids are dumb enough to do it because I asked them to do it (i doubt that).Our roof will remain dark grey...