7/8 pine subfloor and 1/4 underlayment sufficient?


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Old 09-04-14, 05:40 AM
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7/8 pine subfloor and 1/4 underlayment sufficient?

Having some work done by a contractor because I'm too far way to do it. It's in a family summer place.

The contractor is using 1/4 AC plywood underlayment over the existing 7/8 pine (yes 7/8, it’s a tad bigger than 3/4) subfloor. He states that because the floor is solid (it is) and because the floor joists are 16 inches on center, and are 2 x 10, and there is no tub (only a shower stall) and the room is small (6' by 6'), that the floor is fine for vinyl and that an extra layer or 1/2 or 5/8 plywood subfloor isn't necessary.

The work is partially done (the toilet flange is in for example) so it will take some effort to reverse this).

What do you all think?

Thanks in advance as always.
 
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Old 09-04-14, 05:45 AM
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Unless the original subfloor planks are really cupped, I don't see what's wrong with that method provided he's screwing down any loose or squeaky planks before the underlayment is applied.
 
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Old 09-04-14, 03:41 PM
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the floor is fine for vinyl
Vinyl - is the key word here. Vinyl needs a good flat surface for a quality instillation, not necessarily a super solid substructure. If you were planning on installing tile, our discussions would go in a different direction. You're fine with your contractors direction.
 
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Old 09-05-14, 04:36 AM
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czizzi, XSleeper,

Thanks very much for the time and confirmation - much off my mind now!

DGF
 
 

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