Applying Eternabond Tape to edge of roof

Super_Dave wrote:

Kayteg1 wrote:

Don't count on the tape to seal the leaks.

That makes absolutely no sense. That's its sole job. Just because your previous owner put the tape on long after the leak had started, don't think it doesn't work. The tape will seal the leaks but won't address any damage already done.

I've used it myself on that very same edge seam the OP is asking about and found it to be unsatisfactory. There were no leaks, and I did all the proper "rain-dance" prep work beforehand, then rolled and rolled and rolled the tape to activate all those micro beads (of snake oil).

It looked perfect when I got done, and there was no indication that there was anything amiss..........until I had to peel some off to replace something on the roof (can't remember what I was working on, this was about eight years ago). Guess what I found under the tape? Water!

I peeled every bit of it off and re-caulked with Dicor self-leveling and lap sealant.

I wouldn't trust tape to seal anything but a perfectly flat surface with no curves, edges, bumps, or anything that you have to form the tape around. The vinyl backer will not stay formed around irregularities, and will lift the adhesive off the roof.

I think it's virtues are all illusory.

:):)