Outdoor RV replied:
The roof should be cleaned with mild soap and water. The roof sealant is DIcor self leveling sealant. After the roof is cleaned the Dicor just goes over the old sealant. The sides are sealed with Geocel/Proflex. I would use a citrus cleaner on a rag to clean then re seal.
So use different cleaners top and sides? That's strange. And do I dig out the old drying sealant on the sides or just go over the old like with Dicor?
I still need a good wax tip. It sounds like the Auto wax I use for my truck is not what's recommend for fiberglass?