I've read a lot about cleaning epdm roofs and treating them but wonder about this product. Has anyone used it? My first ever mh lives outside and the once clean roof now is spotted with mildew and the caulk is dry and cracking. One heck of a rainy summer here in the sunny land of humidity. Time to do some work and this sounds promising but am afraid to use it without hearing from experienced rvers. http://wetandforget.com/