Cleaning and sealing a rubber roof
I agree with Fireballsocal, We have a rubber roof on our HiLo and just used the Dicor cleaner and conditioner,just follow the directions. We got the kool seal primmer and kooseal topcoat from our local Rv dealer(elastomeric). Follow the directions and tape off where the roof terminates on the side with blue painters tape. Dicor probably makes products that will do the same job. If you don't have an rv place near you then search the internet for the best price. The roof Koolseal is not cheap,maybe $100.00 for everything you need. Cheap insurance vs roof replacement. Either brand will work.