Eternabond and fiberglass roof

I personally would use some type of caulk instead of scotch taping it.
bumpy

I've been using Eternabond tape for over 20 years on several different motorhomes and NEVER had a leak anywhere that I put the Eternabond.

I have a similar situation as the OP on our current motorhome on the passenger side that allows water to pool up. I am going to run a 4" strip of Eternabond along the entire seam as soon as the 50' roll arrives. No worries after that.

Eternalbond tape, like all similar products, is only as good as the surface it is applied to. IT MUST BE CLEAN !

If you are really paranoid about leaks (paranoia can be GOOD is some cases !), remove that strip, clean underneath, apply butyl tape at the edge, re-install the screws (switch to stainless steel) with a bit of butyl tape around each one. This what they use on ocean going sail boats and they see a lot of water !

I'm with theoldwizard1 on this one. Butyl tape is very sticky and rubbery. I bought a roll of it when I put up a slide topper. The stuff works great. I would be concerned with the eternabond making a complete seal on a pebbly roof like that.

theoldwizard1 wrote:
Eternalbond tape, like all similar products, is only as good as the surface it is applied to. IT MUST BE CLEAN !

If you are really paranoid about leaks (paranoia can be GOOD is some cases !), remove that strip, clean underneath, apply butyl tape at the edge, re-install the screws (switch to stainless steel) with a bit of butyl tape around each one. This what they use on ocean going sail boats and they see a lot of water !

Although Eternabond tape is really good, the butyl tape and stainless steel would be a really good permanent fix. More work but the payoff is a sure thing without doubt.

We just bought GeoCel Proflex Instant Roof Repair and sealed the seams of my roof. It is good for fiberglass roofs. There is no way that stuff is going anywhere anytime soon.

Actually, Eternabond IS what is used by Forest River in their repair of the cracking fiberglass roof radius issue.

https://dealers.forestriverinc.com/download/servicebulletin/68-0488-DEALERCENTRAL.pdf

I have the same problem with our 2015, but Forest River has refused to fix it, and so has Lazy Days, who knowingly sold it with the issue.

I've temporarily fixed the fine cracks with RTV, but will be adding another layer of fiberglass, then sealing it with Eternabond.

2manytoyz wrote:
Actually, Eternabond IS what is used by Forest River in their repair of the cracking fiberglass roof radius issue. adding another layer of fiberglass, then sealing it with Eternabond.

interesting, they call it a "sealant" issue, but you say the fiberglass is actually cracked?????????

bumpy

Bumpyroad wrote:

2manytoyz wrote:
Actually, Eternabond IS what is used by Forest River in their repair of the cracking fiberglass roof radius issue. adding another layer of fiberglass, then sealing it with Eternabond.

interesting, they call it a "sealant" issue, but you say the fiberglass is actually cracked?????????

bumpy

This is what happens when very thin fiberglass is bend into a sharp radius, then expected to handle the twisting and flexing of the vehicle's chassis. Fine cracks have formed, allowing water to weep in. I now have to rebuild or replace the cabinet by the door.

Moderator edit to re-size picture to forum recommended limit of 640px maximum width.

Meanwhile, the 2006 Forest River travel trailer I own, that has a VINYL roof, is still doing great. So much for getting a much more expensive fiberglass roof, and have it last forever (with P/M).

As I go about repairing my roof, I'll be sharing the information on the forums, and on YouTube. I had nothing but positive things to say about the company in the past...