Good Sam Club Open Roads Forum: Resealing the Edge of the Roof, Dicor, Eternabond, or Both?
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 > Resealing the Edge of the Roof, Dicor, Eternabond, or Both?

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crcr

US

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Posted: 05/02/20 09:42am Link  |  Quote  |  Print  |  Notify Moderator

I'm about to do some re-sealing to the roof edges on our travel trailer, to ensure no water damage. Attached find two images of the edge of the roof. I have a tube of Dicor Non-Leveling, Non-Sag Lap Sealant, which I have had very good luck with in the past. The TT is a 2011 model if that matters.

Where the roof material comes over the edge of the roof, you can see in some places there is cracking and slight separation of old caulk. I would like to cut and remove the separated caulk before re-caulking, but I am very concerned that it will be hard to do that without scoring or cutting the roofing material underneath.

So do you think I should just run a bead of my Dicor along there to cover and refresh the old caulk? Or should I instead overlap the edge with some Eternabond tape? Or, should I perhaps refresh the caulk AND then once cured, apply Eternabond over the edge?

Looking for any suggestions or advice with this project. Thanks in advance!



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opnspaces

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Posted: 05/02/20 10:06am Link  |  Quote  |  Print  |  Notify Moderator

It might come up without cutting it just grab and pull. I've been able to use that method of two different RV's and it works fairly well. If it is a real bear to pull up I would just caulk over it. I have used and like Eternabond, but I've never wrapped it around an edge like where you have the cracking.

As far as the big puddle of caulk in the back corner, I would definitely caulk over. It looks like there is a low point there and the manufacturer filled the area with caulk to prevent a standing water puddle that would be more prone to leak.


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Lwiddis

Lone Pine, CA

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Posted: 05/02/20 10:48am Link  |  Quote  |  Print  |  Notify Moderator

Regarding picture number one, remove all you can, use Dicor self leveling, let it cure and then tape.


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mrquacker

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Posted: 05/02/20 11:22am Link  |  Quote  |  Print  |  Notify Moderator

Watching this, 'cause I gotta do the same this.





TurnThePage

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Posted: 05/02/20 11:27am Link  |  Quote  |  Print  |  Notify Moderator

I wrapped Eternabond all the way down to the gutter on my trailer about 15 years ago. It's been more or less bullet proof. The only caulk I removed was to give the tape a smooth surface to adhere to. I glommed a couple layers of tape over the those corners, then used a little self leveling caulk on the edges.


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crcr

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Posted: 05/02/20 12:51pm Link  |  Quote  |  Print  |  Notify Moderator

Thanks everyone, for all your responses! Much appreciated!

jdc1

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Posted: 05/02/20 02:22pm Link  |  Quote  |  Print  |  Notify Moderator

Lwiddis wrote:

Regarding picture number one, remove all you can, use Dicor self leveling, let it cure and then tape.


Yep. It's easier to wait for a warmer day. It's more pliable. Use a flexible putty knife to remove the old caulk.

phemens

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Posted: 05/02/20 03:47pm Link  |  Quote  |  Print  |  Notify Moderator

Same here, went around all the edges of the roof with Eternabond, it comes halfway up from the gutter, 4" tape. 1st thing I do on any RV I get.


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mleekamp

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Posted: 05/03/20 05:12am Link  |  Quote  |  Print  |  Notify Moderator

The last 2 units we bought (a TT, then our C in late 2018), one of the first things i did was use a roll on the roof at all seams...where vents/skylights are, and on edges front and back. Why? Got tired of small leaks here/there on an older unit, and when i just Eternabonded the seams on that roof, it stopped. Now, I feel the time/cost is worth it up front.


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rhagfo

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Posted: 05/03/20 06:36am Link  |  Quote  |  Print  |  Notify Moderator

Lwiddis wrote:

Regarding picture number one, remove all you can, use Dicor self leveling, let it cure and then tape.


No Self leveling on a vertical surface, us non sag. I use plastic scrapers to clean off old calk on the roof, with rounded corners and work carefully.


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