Leaking non sliding window on Bigfoot 17 - Fiberglass RV


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Old 10-17-2015, 12:05 PM   #1
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Leaking non sliding window on Bigfoot 17

Hello again. I've almost got all of the leaks fixed in our 1988 Bigfoot 17. I noticed the rear window, which is a non sliding solid window, weeps water at the bottom. I believe it's running down the window and collecting where there is an open spot where the rubber trim has shrunk. There is a joint where the aluminum frame meets right at the center of the bottom of the frame. I think it's slowly entering there. The window channel holds the water until it overflows. I was thinking of filling the void on the outside of the window with some type of caulk. I could also put a small bead of caulk on the inside where the aluminum frame meets. Anyone had this problem before? The window is a sunview. Thanks in advance for the help. Click image for larger version

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Old 10-18-2015, 11:37 AM   #2
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I had the same problem with my '2002. I took the window out, cleaned all the channels and added a small bead of silicone when I re-mounted it last year. So far so good.

Walt
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Old 10-18-2015, 02:12 PM   #3
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Walt, did you remove the rubber glass surround and clean and seal under the rubber glazing bead/seal? All of the channels on my window from the interior are clean. I was just worried that if I seal under the rubber, I miss got not get it back into place. Thank you


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Old 10-18-2015, 07:04 PM   #4
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Yes I did that. It was rather tedious, but not too bad.
I was concerned about that also.
Good luck with yours.

Walt
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Old 10-18-2015, 10:00 PM   #5
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Ok I'll try that. Thanks Walt.


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Old 10-19-2015, 09:37 AM   #6
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All of the windows, on my 1991 Bigfoot 17 have a gap in the rubber strip but none leak. Years ago when visitng British Columbia I had Sunview replace all sliding window soft parts on an 1986 Bigfoot 17. What they forgot was to seal the seam in the exterior metal frame, which is at the top on my windows. One window leaked right away when I tested at a nearby car wash. I returned to Sunview where the owner himself put a bead of caulk on that seam. Problem solved. Perhaps this will work for you, too.
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Old 10-19-2015, 12:57 PM   #7
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Ok I'll look at that too. The seam on my window is at the bottom. I'll re-caulk that and see how it goes. You're talking about the 1/2-3/4" metal seem where it joins to make one piece, correct? If so that should be an easy fix. Thanks for the tip.


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Old 10-19-2015, 06:54 PM   #8
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Yes, it's the metal frame seen from the outside of the trailer. The seam in it will be vertical. To deal with the gap, the rubber bit can be removed and washed in warm soapy water. It will stretch to the point where, when reinstalled, the gap may disappear. Over time the rubber will shrink again and the gap will reappear. One fix to the gap is to fill it with black silicone caulk. For a sliding window waxed paper can be placed between the gap and the glass so the silicone will not stick to the glass. I have done this but the rubber continues to shrink leaving a gap on either side of the silicone. Since the windows do not leak I have decided to live with the gaps. I hope this helps.
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Old 10-20-2015, 04:50 PM   #9
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That's perfect. Thanks Tim.


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Old 10-21-2015, 09:04 AM   #10
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Leaky rear window.

I looked at mine and I also have the shrunken rubber gasket but no leakage,
If it did, I would probably just drill a small weep hole (1/8"?) on the outside channel just under the gap. Don't hit the glass - heh, heh.
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Old 10-21-2015, 09:22 AM   #11
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Quote:
Originally Posted by WaltP View Post
I had the same problem with my '2002. I took the window out, cleaned all the channels and added a small bead of silicone when I re-mounted it last year. So far so good.

Walt
Walt,
Is it a hard job to take the window out and put it back in? What tools do you need for the job? Is there a certain caulking that is the best to use for this job?
Thanks for your help!
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Old 10-28-2015, 04:16 PM   #12
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Sorry, I've been on a trip with marginal internet access.
I'd say it was moderately difficult. Mainly don't be in a rush; just take your time, be careful and thorough. Make sure every surface is well cleaned before the re-install.
The only tool I recall being necessary was a Robertson screw driver, although a flexible putty knife might be helpful as well.
I used silicone caulk.

Walt
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