I have a 2000 Fleetwood Moterhome. Should I use the primer if I'm unsure of the roof type? Or is it possible to tell if its an Alpha roof?
Related question. My roof was repaired with EternaBond tape. If I need the primer, will I still need to sand and the tape and apply rubber cement as suggested in other Q&A? Or will an application of the primer do the same job? Should I still sand the tape?