I had a leak at the front of my trailer where the rubber roof meets the termination bar. The Dicor had a crack in it. I can feel a one foot by one foot section of the OSB is soft near there. I would...
Eternabond is to RV's as rubber roof sheets is to roofs susceptible to ice daming, they're both fairly expensive, labor intensive, annoying to work with, and absolutely worth it as the problem they prevent is way more expensive and annoying to fix than the cure.