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Floating a 3/4" Solid Hardwood Floor Over Above Grade Concrete?

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Floating a 3/4" Solid Hardwood Floor Over Above Grade Concrete? lefebvre 12-19-2006
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Posted by efgh on December 20, 2006, 1:55 pm



> "He ended up putting down a slate tile "
>
> For a shop floor, tile isn't much better than concrete - or am I missing
> something?

Yes. The OP installed the hardwood flooring in his house. Mike Holmes put
it in a kitchen. After re-reading my post, I omitted where in the house the
issue was. My apologies.

>>
>>>I am interested in floating a solid hardwood plank floor (3/4" x 3").
>>> Has anyone successfully done this? I am leary of glue down application
>>> onto the above grade cement slab. Here in Hawaii we have alot of
>>> moister in the air and I feel that allowing the the floor to shrink and
>>> grow and generally allowed to roam is a better option than locking it
>>> down which then could lead to buckling and other nasty things. Plus
>>> wood floors are supposed to give and take underfoot and not fee like
>>> contrete.
>>>
>>> I have successful tried this in a small room in the house for testing
>>> and all went well and it has been over a year with no issues to date. I
>>> left 1/2" gap all round the room for expansion space. Now, I want to do
>>> the main living room which is a lager space and higher traffic area.
>>> What are your thoughts, ideas, recomendations, and concerns?
>>>
>>> -Marc
>>>
>> Holmes on Homes had an episode where the homeowner had hardwod flooring
>> instaled over concrete. While I can't remember the specifics of the
>> issues, the reader's digest version is that it, the flooring and the
>> plywood subfloor, rotted out in a relatively short period of time. Mike
>> went through the trouble of making sure there were no other water leaks
>> that could have caused the problem. He even drilled into the concrete
>> slab that was poured 25 years ago only to discover that it was the proper
>> thickness, the styrofoam under the slab was fine and the dirt below that
>> was dry. I think he concluded that the moisture in the concrete was
>> causing the flooring/subfloor to rot. He ended up putting down a slate
>> tile with an electric heating pad underneath.
>>
>>
>
>



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