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Old 11-09-2015, 08:41 PM   #1
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particleboard not plywood

Thank goodness it's in good shape. We're removing the carpet after realizing we're dealing with a '90. One important no-no I hope not to repeat...leaving a bathtowel near the toilet flusher...gravity wins everytime...flood.ripped up cpt.no damage.? Why would there be particle board instead of plywood in a 90 25' excella? Steeerang. Has anyone out there dealt with particleboard? Yes..happy she is dry.
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Old 11-09-2015, 10:53 PM   #2
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Particleboard or OSB?
OSB maybe ...
Particleboard NEVER (for anything).
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Old 11-09-2015, 10:58 PM   #3
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nrgtrackr
OSB..hmmm
Neva heard of it
Looks like compressed pieces.
TY for telling me abt osb nrgtrackr
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Old 11-10-2015, 02:47 PM   #4
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That vintage uses OSB, not plywood!
OSB is not particle board!
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Old 11-10-2015, 02:53 PM   #5
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FYI/ if you didn't know OSB stands for oriented strand board. I would much rather have plywood but I just put up a new metal roof on my leaky garage. You could see where it was leaking and I was pleasantly surprised the OSB was not in worse shape.
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Old 11-10-2015, 02:59 PM   #6
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The osb actually uses the same glue as the marine grade plywood, therefore it withstands moisture and water soak better.
Particle board is entirely different and lesser spec stuff!
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Old 11-10-2015, 03:33 PM   #7
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Yes, the OSB uses good glue. No, the OSB does not withstand moisture and water soak better than plywood. The OSB is hot pressed and the strands are very compressed and there is very little contact area of the glue. When it gets wet the strands swell and it comes right apart. 24 hours in a cold soak test and you have to dip the strands out with a net. Hard to measure "thickness swell" when you can not find all the flakes. Some of the very modern OSB's (last 10 years) intended for floor underlayment use more and better resins and have slightly smaller thickness swell than the older panels but that kind of panel is not what is used in Airstreams. And plywood still does a lot better in a soak test.

I have 2 trailers with the OSB floors. I have done some patching. But overall still in usable shape after 28 years.

The OP could be looking at particleboard if he has the raised toilet on a little box. They used particleboard for that part on our trailer that has that feature. Plus they used particleboard under all the laminates in the walls and counter tops and table. Weight without strength or moisture resistance. Poor choice of material by my standards, but what they used.
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Old 11-10-2015, 05:01 PM   #8
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They ONLY osb of high quality is
Advantech. It can used in marine applications. But if I had the budget
Coosa board would be my first choice
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Old 11-10-2015, 09:40 PM   #9
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No mater what wood you use, trapped fresh water, and wet wood will cause the wood floor to fail.
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Old 11-11-2015, 07:34 AM   #10
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Sgschwend...so true...this is why we removed the carpet immeduately. Thankfully there is no damage to the floor.
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Old 11-11-2015, 07:37 AM   #11
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Originally Posted by gogonow View Post
Sgschwend...so true...this is why we removed the carpet immeduately. Thankfully there is no damage to the floor.
Thank you for responding. I knew enough to remove the carpet and pad asap...no problem
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Old 11-11-2015, 08:54 AM   #12
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Great mystery to me why Airstream puts carpet in the bathroom to start with. I guess it is cheaper than installing a proper bathroom floor.
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Old 11-11-2015, 11:53 AM   #13
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I don't know Bill M. The carpet is top notch however, who needs or wants it?
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