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...
Many folks have done this and if you do a google on the subject you would find all kinds of help with videos as well. So if you are up to it, go for it. Just do the research before starting. Folks here can give some tips, but I recommend you also check out the different videos and articles available on the web.