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Old 01-05-2016, 07:51 PM   #1
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Sub floor

Is it true you have to remove the wall panels to access the plywood subfloor? I do not see any screws I would need access. Thinking I could cut down middle and rip out
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Old 01-05-2016, 08:02 PM   #2
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An Airstream is a semi-monoqocue. The walls, floor and frame are all structural members. The floor is attached to the C channel and so are the walls to get to the C channel you have to remove lower inner skins. How much floor do you want to remove and what is the year and model of your Airstream?
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Old 01-05-2016, 08:16 PM   #3
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You will have to remove the inner skins to get to the bolts through the c-channel (at the tip of every outrigger). I also removed the wraps (outer skin below the belt line that wraps from the side down to the belly pan). I had to replace so many outriggers... But you need to anyways, to be able to hold the nut as you tighten the new c-channel bolts.

-Red, master of the belly pan...
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Old 01-05-2016, 08:19 PM   #4
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Also, be very careful "ripping down the middle". My waste tanks are very close to the plywood... But mine's a center bath. Not sure what you have.

-Red, reliving the rebuild...
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Old 01-05-2016, 08:26 PM   #5
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1970 sovereign
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Old 01-05-2016, 08:27 PM   #6
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Floor in bathroom, kitchen area, front window all rotted out
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Old 01-05-2016, 08:45 PM   #7
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I would say the floor is the C channel filler between the wall and the frame. You really won't get an increase in stiffness with such a thin layer of OSB or plywood with large screw down spacing. You need solid wood in that C channel.

You would need to decide how much frame and wood floor repair you need to do. Certainly a wood floor and or frame can be repaired without removing the skin. My 2 cents.
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Old 01-05-2016, 09:26 PM   #8
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Sub floor

Paul, you're probably going to run into quite a bit of frame repair to go along with the floor repair. Dig up my thread, "Resurrecting Big Bertha" on here... I replaced the rear eight feet of floor, the front six feet of floor, and a lot of steel in my frame. The outer skins are attached to the c-channel, and the C-channel is held to the frame by the bolts at the end of each outrigger. If you're going to all the work to replace the floor, which will involve removing the kitchen and bathroom, pulling the inner skins is nothing. I completely removed my wraps, belly pan, and inner skins where I was replacing the floor.

Just check out my thread. Lots of pictures... Hope it helps.

-Red, been there, done that...
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Old 01-06-2016, 09:32 PM   #9
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Mine 24' Tradewind is having a complete floor replacement. It's the shell off the pan. We had to take the inter wall panels off to do this. But we numbered and marked all the panels and the wall so when we put it together we know where to them back.Click image for larger version

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Old 01-06-2016, 09:57 PM   #10
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Why do they use plywood anyway? Couldn't they use some sort of composite material that wouldn't rot?
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Old 01-07-2016, 12:01 AM   #11
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Why do they use plywood anyway? Couldn't they use some sort of composite material that wouldn't rot?
That's the $1000 dollar question that the mother ship doesn't seem interested in addressing.
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Old 01-07-2016, 11:06 AM   #12
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It's marine board.


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Old 01-08-2016, 09:37 AM   #13
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It's marine board.


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Does it have "Oorah!" Or "Semper Fi" stamped on it somewhere?

-Red, again with nothing to add...
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Old 01-08-2016, 10:02 AM   #14
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That's the $1000 dollar question that the mother ship doesn't seem interested in addressing.
Newer Airstream flooring is OSB
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