This may sounds like a stupid question, but I have a 1990 Sun-lite 850WT TC and I'm not sure what kind of roof it has on it. So far, it is leak-free, but I want to keep it that way by maintenance. I...
They make roller applied roof coatings that renew reflectiveness of the roof and years of life. I don't know how material specific the coatings are but that along with externabonding the joints would be the formula that I would consider.