My wife rubbed a tree branch against the side of our TC roof tearing the membrane for almost 4 feet along the edge. I cleaned the roof area with a rag and denatured alcohol until spotless and then applied eternabond tape over the edge which covered two inches onto the roof and two inches down the side. I then used non-self leveling dicor all the way around the perimeter of the tape overlapping onto both the roof and filon sides. That was over 3 years ago. I have had no leaks, pealing of edges or any other issues since the repair.