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Old 02-08-2015, 04:32 PM   #15
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1975 27' Overlander
Albany , Oregon
Join Date: Feb 2015
Posts: 8
I think I'll belt sand a little and add some shim and level with flexible floor patch.

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Old 03-04-2015, 11:38 PM   #16
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1964 17' Bambi II
Pasadena , California
Join Date: Jul 2014
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As a newbie I am currently replacing an area of rot in my 1964 Bambi flooring and then I like 87MH idea of covering it all with the 1/4 inch plywood. One question there is that am I ok to take that 1/4 plywood right up to the inner wall or will I get some expansion. Also does anyone suggest that I seal or prime the subfloor or the 1/4 inch plywood or both to protect it from any possible future water damage. Thanks - Steve

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Old 03-05-2015, 04:00 AM   #17
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2008 30' Classic S/O
Dearborn , Michigan
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I noticed the same issue on my then new 30' Classic.

While in for some warranty repairs, I pointed it out to Rick (service manager). He told me they routinely run wiring above the frame- under the subfloor, which creates this 'ridge'.

I was extremely skeptical; seems like the perfect place to wear, pinch, short? He assured me they do it 'all the time', with no problems.
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Old 03-05-2015, 10:48 PM   #18
The Sign Lady
1969 23' Safari
1974 Argosy 22
1964 24' Tradewind
Victoria , British Columbia
Join Date: May 2012
Posts: 676
The wiring in my 60's trailers are all run high up in the wall and dropped down to wherever its needed. Nothing through the floorboard area.

Hopefully that is a new (bad) idea....
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Old 03-06-2015, 12:33 AM   #19
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1969 25' Tradewind
Shasta Lake , California
Join Date: Sep 2012
Posts: 747
I had to replace the rear 4' of floor do to rot . I coated it with Thompson's water seal and I also coated all the floor around the edges about 1' in.

Next I used 1/4" Underlayment glued and nailed over the whole floor in prep for Marmolium floor covering. Next step was to level the seams then install the Marmolium.
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Glen & Jane 1969 all electric Airstream 25' TradeWind
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Old 03-07-2015, 11:19 AM   #20
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2008 25' Safari FB SE
Grand Junction , Colorado
Join Date: Sep 2007
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Wire under the subfloor? That sounds crazy if the wire is crushed between supports and subfloor. When I exposed our subfloor in the rear and hall (bedroom is carpeted and left alone so far), I didn't see any humps and it would probably take 120 v. Romex cable to make a noticeable hump. More likely water damage would cause the plywood to expand, but if you see no water stains on the top surface the water probably came from below.

I see tinmaah solved his problem successfully and ignored my advice. Fine since his fix worked.


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Old 03-07-2015, 10:41 PM   #21
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1975 27' Overlander
Albany , Oregon
Join Date: Feb 2015
Posts: 8
After replacing the front 3 or so feet, I realized that the splices in the plywood had a patch under them that the adjoining pieces were screwed to. These splices are over the frame cross members. The dip that I had was because someone replaced the section of floor in the kitchen and didn't use the patch piece under it. I cut a 5" wide slot from the edge at the sink cabinet to just short of the fridge. Next, I cut two pieces of 3/4" plywood 9" wide and worked them in through the slot and over the cross member to raise the dipped section. There is still a hump in the seam on the forward edge of the kitchen just to the left of the door, but it is MUCH less than it was. I just finished laying vinyl click flooring, and it looks great. The bathroom also slopes to the rear starting at the door. Was this by design for tub drainage, or is it another previous owner repair gone bad?

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