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opnspaces's avatar
opnspaces
Navigator II
Nov 13, 2015

Thoughts on how to patch roof leak with Eternabond

I was on my trailer roof last weekend and I noticed bumps under the rubber roof that were never there before. I already knew they were going to be from a leak and slicing open a bump or two confirmed it.

I have a 2005 Jayco Jayflight with the felt backed TPO roofing. I verified this when I sliced open a bump.

The leak appears to be at the front joint where the TPO meets the aluminum and the damage is a roughly a 2 foot circular area. My thought is to slice a T in the roofing by slicing across the front of the roofing at the front cap and then straight down the middle of the damage for about 3 feet. Once open I can assess the damage and decide what next.

Okay here's my question:

Is it better to slice across the front of the trailer and then straight down the damaged area, or to slice across the front and down the two outer walls and peel back? What would you do?



My hope is I caught it early enough to just dry out the area and put the TPO back down. (yes I've been on this forum long enough to realize this isn't likely) :(

3 Replies

  • WyoTraveler wrote:
    I don't think I would cut near the edge of the roof. May be harder to patch. Cutting that much I would use 6" wide tape eternabond or sticknbond tape. Would cutting an X over the bad area be less damaging to check damage? Starting small and increase as necessary.

    X2, I would minimize the repaired area. You can always cut a larger area if necessary.
  • I don't think I would cut near the edge of the roof. May be harder to patch. Cutting that much I would use 6" wide tape eternabond or sticknbond tape. Would cutting an X over the bad area be less damaging to check damage? Starting small and increase as necessary.
  • If it is at or very near the joint you may as well open the whole joint up to repair the leak.The roof wood plywood or what ever likely is the same joint so if you end up replacing wood you will need to get there also.Redo the whole joint.I sure hope you don't find a huge wet area all along the joint.