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Old 03-02-2017, 01:42 AM   #1
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Default Question re leaking roof windows. Roadtrek D 190V

So I've just discovered I've got a leak or two in the roof windows which I understand is a very common problem with the older RTs. I am going to get a quote from a local glass place, but I may just attempt them myself.

I looked at a few vids on repair, and it looks pretty straight forward, but I am left with a question. They all mention "butyl tape" as the gasket/sealer when repairing the windows.

Is the "butyl tape" mentioned, the "putty tape" I am used to using for vertical RV surfaces or is it a different product? My understanding is that this "putty tape" was meant to be used on non-horizontal surfaces, and that horizontal surfaces use (a) different product(s).

Any info welcome.

Thanks.

P.../NH
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Old 03-10-2017, 02:57 PM   #2
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Hmm. No suggestions in 10 days....

How about recommending someplace else to try. I am going to bring it to a glass dealer soon for an estimate. Maybe they'll tell me what they use.

Tnx
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Old 03-10-2017, 03:17 PM   #3
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.

Lots of vid on youtube.

If you have watched the vids,
just follow the instruction.
Why reinvent the wheel?
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Old 03-10-2017, 03:42 PM   #4
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BBQ, Tnx for the reply. Yes, I've seen many of them, the issue is that they either don't mention what they're using for sealing tape, or they mention butyl tape.

Is the "butyl tape" mentioned, the "putty tape" I am used to using for vertical RV surfaces or is it a different product altogether?

My understanding is that this standard "putty tape" was/is meant to be used on non-horizontal surfaces like RV side windows and hatches. And that horizontal surfaces use (a) different product(s).

As an example, latex/acrylic or silicone caulk is typically used on vertical applications on RVs. While "self leveling" caulk (see attached) is used on horizontal surfaces for sealing roof fixtures (vents, antennae, etc). Not for windows.

The roof windows are in between vertical and horizontal.

Tnx
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File Type: jpg self leveling.jpg (13.1 KB, 6 views)
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Old 03-10-2017, 03:49 PM   #5
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.

butyl is the good stuff.

never use silicone on RV; it will leak again soon.
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Old 03-10-2017, 04:32 PM   #6
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We agree on that. Caulking. But I need to find the answer to the window "sealing tape question".
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Old 03-11-2017, 03:20 AM   #7
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I just dribbled in some Tolley's and all is good.

https://www.amazon.com/Captain-Tolle.../dp/B00JQ6XHWC
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Old 03-11-2017, 11:31 AM   #8
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I used butyl tape, supplied by the manufacturer, to seal the openings for the skylights in my plastic garden shed. These are on the roof, obviously and lie mostly horizontal. That was several years ago and they're doing fine. In fact this winter they were under a foot of snow for weeks. The tape used was identical to the roll of butyl tape I bought at Camping World years ago for a different project. I can't imagine it making a difference in which orientation you use the tape, vertical or horizontal. We're not talking about lap sealant which does come in two formulations for vertical or horizontal use.

Use the tape. You'll be fine.
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Old 03-15-2017, 06:42 PM   #9
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Hi Eric, tnx for the reply. My question is which type of tape. See attachment. Thick butyl PUTTY, or thin double sided butyl RUBBER?

Thanks.
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File Type: jpg butyl putty and rubber.jpg (29.3 KB, 2 views)
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Old 03-15-2017, 11:29 PM   #10
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The putty.
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