A friend is an rv tech and recently suggested that the lifespan of the roof on my 09 Sundance would be extended considerably by painting it with the Decor product, it's an EPDM roof. After purchasing several gallons of paint and cleaner on eBay, I tackled this project last week. It took two hours to tape off everything and hang plastic on everything (following the Dicor instructions video) and the results were worth a full days effort.
I had cleaned the roof and touched up the caulk annually, and store it in the shade here in San Luis Obispo. But I can definitely see the benefits of doing this project.