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Open Roads Forum  >  General RVing Issues

 > Roof seams starting to crack

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Lightning55

Pleasanton, CA

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Posted: 08/28/20 05:44pm Link  |  Quote  |  Print  |  Notify Moderator

I know this subject has been out there many times but it's now my time to think about doing some resealing on my 5th wheel. It's 3 years old, does not have any evidence of leaking but I noticed that some of the caulking on the roof seams are cracking a little in places, especially where the front cap meets the roof. I guess the question is: am I short cutting this by resealing just the cracks that I see or should I make this a big job by resealing all of the joints? If I do it all, can I re-caulk over the original without digging it all out and starting over? If I have to do it all, should I use Dicor Lap sealant or Eternabond?

Lwiddis

Williams AZ area

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Posted: 08/28/20 05:53pm Link  |  Quote  |  Print  |  Notify Moderator

Annual roof maintenance is essential. Every six months is better. I use Heng’s and Eterabond tape. “Evidence of leaking” is what you never want to see.


Winnebago 2101DS TT & 2020 Chevy Silverado 1500 LTZ Z71, 300 watt solar-parallel & MPPT, Trojan T-125s. TALL flag pole. Prefer boondocking, USFS, COE, BLM, NPS, TVA, state camps. Bicyclist14 yr. Army vet-11B40 then 11A - (MOS 1542 & 1560) IOBC & IOAC grad


Sjm9911

New Jersey

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Posted: 08/28/20 07:50pm Link  |  Quote  |  Print  |  Notify Moderator

Depends on what it was sealed with and how it is. If the old stuff is still pliable, i qould clean it with mineral spirets or simmiler and caulk over it with dicore, self leveling. If hard, and separating, remove and re due it.


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Bill/Diana

Southeastern Pennsylvania

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Posted: 08/28/20 09:59pm Link  |  Quote  |  Print  |  Notify Moderator

Eternabond tape. Do it once and it is good forever.


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Draggo

Rochester, NY

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Posted: 09/01/20 12:17pm Link  |  Quote  |  Print  |  Notify Moderator

I second just using the Eternabond tape and basically forgetting about it. I did all the roof seams on my 3 yr. old TT this year to protect it. Our last TT sprung a leak that I missed on my inspections and it ruined the trailer so I didn't want to take chances this time. I'll still check it annually but at least the odds of a problem are a lot less now.


Mike & Company
2012 Chevy Silverado Crew Cab (5.3L V-8, 3.42 rear gear)
2018 Coachmen Freedom Express 279RLDS
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