Just like other forms of roof sealing, Eternabond isn't the end-all, be-all solution. Leaks can still happen.
Read here to learn about and Eternabond failure.The statement below sums up exactly what the link above describes happened with their usage of Eternabond:
ajriding wrote:
The tape will leak anywhere there is a small angle or crevice as the tape cannot fill in little gaps, you will have to supplement with lap sealant anyway to fill the gaps the tape leave behind, or water will get in and rot out what you think you are protecting.