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Old 10-19-2009, 07:04 PM   #1
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Charles Wilcox
Replacing plywood under rubber roof

Just purchased a 1998 T-1950 and have found a soft spot under the rubber roof on the front LH corner yet no signs of any leaks in that area inside. Do you think rot or broken due to some-one getting on the roof. Has anyone pulled the rubber back and replaced the plywood? Also the radio is missing and the swivel TV shelf does any body know where I might get them replaced? Thanks
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Old 10-19-2009, 07:17 PM   #2
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Hi charles
as far as the roof goes I have not tackled that but a few months back trailer life mag did a whole rubber roof tear off and replace article , you may want to check out there web site for back issues, the radio look on E-BAY they sell a Jensen stereo that is cd, am,fm and dvd player for about 149.00 bucks it is the same size as the audio vox in the newer sunlines, my brother bought on about 1 year ago and loves it being that your sunny is a little older I am not sure what type of stereo was in it so some modifications to the cabinet may need to be done. ,the tv swivel well you might want to check out camping world might not be a perfect match but you may find something there good luck Dan
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Old 10-19-2009, 07:47 PM   #3
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Charles,

Regarding the radio, my step-son procured a AM-FM-CD-Cassette unit from an '01 Jeep Grand Cherokee. I installed it in place of the dead unit that came with the trailer. FWIW, given what it cost me to install it, it was a much better upgrade than purchasing a new unit. It required some modification of the cabinetry in my trailer, but others may not. Here's a link to the job:
http://www.sunlineclub.com/forums/ph...pic.php?t=3280

Any one of the AM/FM/CD automotive aftermarket units will work fine, too.

I have the same soft spot in the same location. It's roughly 9"x9" or so. I can't find any evidence of a leak yet. I did re-do all of the lap sealant in that corner when I determined that it was a soft spot. Because of it's small size, I am just going to sit tight until spring and then re-examine it. My initial thought is rather than open up those outside seams, I might just drill a hole in the inside ceiling paneling, inspect from that side, and repair the soft spot by injecting some "Great Stuff" expanding foam into that area. Insert a white plastic plug in to the hole, and it's a permanent fix. I'll place a board and weights on the roof so that the foam doesn't raise the roof when it expands.

It is not plywood under the rubber membrane. Sunline used a backer material that is kind of a cross between cardboard and masonite. Hard to describe. It is not very thick and it is not very resistant to penetration. If undamaged, it is more than adequate for snow loads and other loads that are widely spread. Concentrated loads like a human foot will cause damage. Walking on the roof requires plywood panels to be laid down that span the roof joists. A tarp or similar should be under the plywood to prevent any damage to the membrane. Lots of us use old pieces of carpet.

My personal feeling is to avoid opening up the roof from the outside if at all possible. Dicor offers self-leveling lap sealant and a roof coating product plus repair kits. Eternabond tape in conjunction with lap sealant and/or roof coating material is an excellent repair and does not require any disassembly of the roof/exterior components. If there is a small amount of water damage that doesn't affect the structural soundness of the trailer, I think it is a much better idea to do any needed repairs from the inside when possible.

OTOH, opening up those seams in that corner may be necessary. It's not a real tough job, but it has to be put back together correctly to avoid any possibility of new leaks.
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