Hello all- We have a 2010 Starcraft and after perusing the roof a few days ago all the caulking looks good except for the area around the crank-up TV antenna so sealing is in order. Before I attempt...
As a general rule EPDM is a smooth surface and TPO is textured like an orange. I use Dicor self leveling on mine and no if its not loose don't remove the old. Lots of people are fans of EB tape but I have never tried it.