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Old 06-13-2013, 10:25 AM   #1
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Time to re-seal?

We have an '05 Dolphin and I wanted to get a sense of the group mind on this maintenance issue.

Obviously, if I have a leak I will get up there with the Dicor, track it down and reseal everything in the vicinity of the suspected breach.

What I would like to know is how often, when everything is holding together, do you reseal every hole and seam in the roof?

Once a year, once every 2,3,4 or 5 years, only when there is a leak?

Inquiring minds want to know. :^)

J.J. Hayden (KN4SH)
Covington, GA
2005 National Dolphin 5342
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Old 06-13-2013, 10:38 AM   #2
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I think its whenever you suspect a problem and then from there its how bad is the rest of the roof...does it look like it needs a whole job?? I am going to reseal my roof and ordered the ames products from ace hardware.... Untitled Document using the elastro barrier and the maximum stretch and the roofing fabric over the seams and vents... about 340 bucks and I figure 20 hours with the scraping and roof prep...jeff

2007 Alfa Gold!! model 1008. 400hp Freightliner, IFS!!
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Old 06-13-2013, 10:40 AM   #3
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Every six months I check for any dried out or cracked caulk at all roof piercings. If it's cracked or failing, I use a heat gun and remove excess caulk and apply new. Prevention is lots cheaper than rot/mold repair.

Bob & Donna
'98 Gulf Stream Sun Voyager DP being pushed by a '00 Beetle TDI
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Old 06-22-2013, 10:22 AM   #4
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I check a couple of times every year. I ran a strip of Eternabond tape over the seams on the front and rear cap to roof interfaces per recommendation from a National RV factory service guy before they went under. The main areas that have required resealing are the TV antenna entry point and the dome over the shower. I replaced the plastic vent caps with metal ones and used a sealer caulk I got at Ace Hardware. I don't remember what it was exactly, since it came in a small tube and I used it up, but it has been more durable than Dicor.
2017 Coachmen Orion, Ford Transit 3.7L: previous
'09 Pleasure Way Lexor, '05 NRV Dolphin 5342
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Old 06-22-2013, 11:14 AM   #5
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I can't get onto the roof to do my own maintenance, so I have an annual roof inspection done by an RV repair shop that I have good confidence in. Whatever they recommend is what is done.
Vince and Susan
2011 Tiffin Phaeton 40QTH (Cummins ISC/Freightliner)
Flat towing a modified 2005 Jeep (Rubicon Wrangler)
Previously a 2002 Fleetwood Pace Arrow 37A and a 1995 Safari Trek 2830.
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Old 06-22-2013, 12:41 PM   #6
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If you use Safe-T-Plex Acrylic Elastomeric RV Roof Coating with The Tape-Kote fiber back roof seam tape and primer if a rubber roof you can get long term maintenance-free protection up to 20 years or more.
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Old 06-24-2013, 12:53 PM   #7
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Here's a video that relates to this topic.

I do this a couple of times a year as preventative maintenance. Spot fixing works great. We are full-timers and being on the road frequently can cause enough vibrations to crack anything.

Hope this makes it easy for you.... I use Dicor 501 LSW self-leveling lap sealant.

Dave Ross
2006 Dolphin

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