My Southwind has a white roof. Every time it rains I get white streaks pouring down the front window and also at the back. Is there a product I can seal to top with?
I've used ZEP high traffic floor polish from Home Depot for years. Stops streaks..needs to be re-applied once a year (when I wash my roof). Cheap and simple. Just seals the white down for a year. Worked for me on both rubber and fiberglass roofs. Certainly won't hurt either kind.