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Old 02-03-2014, 10:45 PM   #1
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Too much subfloor?


Hello,

I am refinishing a cape cod style half story in our 1946 home. Currently the sub floor/floor is made up as follows:

Floor joists
5.5 x 3/4" shipboard laid perpendicular to joists
5.5 x 3/4" shipboard also laid perpendicular to the joists (I think this was the original "finished floor")
1/4" plywood laid perpendicular to the joists.

On top of this was a mixture of linoleum, stick on tiles, carpet, ect that has all been removed.

My goal is eliminate any squeaks, and lay 12mm laminate flooring over top everything, except for the bathroom, in which I want to lay vinyl tiles.

Should I remove the 1/4 plywood and try to screw down the two layers of shipboard? Or should I try to screw the whole lot down? Should I remove the first two layers and then screw down the first layer of shipboard and then put plywood back down?

What are your thoughts?

Thanks!
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Old 02-04-2014, 05:48 AM   #2
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The 1/4" uderlayment needs to go----Before ripping out the top layer of flooring, I'd see if screwing both to the joists --If that stops the squeaks you will save a lot of work--

If not, go with your original plan----
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Old 02-04-2014, 11:59 PM   #3
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Thanks Mike,

Pulled up quite a bit of the quarter inch ply today. The middle layer is t&g nailed diagonally on the tounge. Is that how it is installed to eliminate nail head? Most of the t&g has shrunk but is relativity flat and firm. (Besides squeaky).

Do you think this stuff will make a good surface for my 12mm laminate?

Tim
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Old 02-05-2014, 04:51 AM   #4
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If it's flat it will be fine for laminate----get a box of gold screws and see if you can stop the squeaks---
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