Fiberglass Roof
Hello, I have a 2016 Newmar Canyon Star Motorhome with a fiber glass roof. Any time that it rains or when I wash the RV and even when I wash the roof and hose it down, I get severe white streaks...
Forum Discussion
I use Optimum spray wax on the roof every 6 months or so. It stops the streaks and it has a UV inhibitor.
