Since I never caulk the roof before I have some questions! This is on a fiberglass roof, when I was at the factory I got some CSL Silicone caulk is that what I use, or do I want the self leveling kind...
If your just doing the seams Eternabond tape overlapping the seam will take care of the problem and you will not have to worry about it for years to come. Go to the eternabond web site and watch the video's