Forum Discussion

mikestock's avatar
mikestock
Explorer
Oct 14, 2021

Reseal roof on class A

I am considering completely replacing the sealant on my 40 ft. class A. It is in generally bad conditions and the 8" rain in 4 hours showed me leaks I never knew I had. I plan to scrape the old sealer out and don't really know what product is best. The entire coach is fiberglass. I have patched it from time to time with self-leveling Dicor. Don't remember the number. Some of replacement will have to be nonself-leveling and some self-leveling. I am located in the South where the Summer days can be brutal.

Since it's such a large project I will have to do segments at a time when the weather is suitable.
Class A
  • Jay58's avatar
    Jay58
    Explorer
    Oct 23, 2021
    Be SURE to follow the instructions for EternaBond,,,, Clean well, prime if required and DO NOT Strech the tape. Use a roller to assure proper contact. I have had a 96 HR Endeavor which had First Owner applied Eternabond which was still good a year ago when I sold it. (1996 to 2019)
    The prep is always the determining factor. Do It once and leave it alone.
  • mikestock's avatar
    mikestock
    Explorer
    Oct 22, 2021
    I began removing the old Dicor ahead of applying the Eternabond. I can see why I had some minor leaks. Some of the Dicor did not adhere to the fiberglass very well. I'm sure part of that was because the preparation was not as diligent as it should have been. I do know the Eternabond will adhere where it is applied.
  • Lancslad's avatar
    Lancslad
    Explorer
    Oct 22, 2021
    After 10 years in the sun my fiberglass roof developed microscopic cracks. I used RV Roof Majic on my 35ft Georgetown. Cost about $450 and it took me 4 days to resurface the roof. I took off the AC units and painted the roof underneath the gaskets (1 day dry time).
    I now have a roof with no leaks.
  • mikestock's avatar
    mikestock
    Explorer
    Oct 22, 2021
    I plan to begin installing the 2 - 4" X 50' kit tomorrow. You will need to climb a tree or get on top of a nearby RV to see how neat or not it looks.
  • jdc1's avatar
    jdc1
    Explorer II
    Oct 15, 2021
    rhagfo wrote:
    Bruce Brown wrote:
    Would it make sense to just Eternabond the entire thing instead?


    I trust Dicor self leveling caulking far more than Eternabond tape for making a
    Secure seal.
    That and I think that Eternabond tape looks tacky!


    LOL. The tape only goes over the edges where the trim covers the sidewall/roof-cap connection. Done neatly, if will look just fine...and last 50 years.
  • rhagfo's avatar
    rhagfo
    Explorer III
    Oct 15, 2021
    Bruce Brown wrote:
    Would it make sense to just Eternabond the entire thing instead?


    I trust Dicor self leveling caulking far more than Eternabond tape for making a
    Secure seal.
    That and I think that Eternabond tape looks tacky!
  • mikestock's avatar
    mikestock
    Explorer
    Oct 15, 2021
    I've thought about it. Just the fact that it can't be removed is making me think twice. Kind of like getting a tattoo. I would like to hear the downside to this solution from anyone with experience. I guess killing any mold ahead of time will be an absolute must. Sure would be simpler.

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