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Floating Floor, Floating Underlayment?

snowboard | Posted in Construction Techniques on April 26, 2008 02:08am

I have this idea to have not only a floating floor, but floating underlayment as well, to cut down on sound transmission to the apartment below. I was thinking of foam pad, 1/4″ luan laid loose with 1/8 gap or so, more foam pad, and finally, click flooring. I am guessing that the subfloor would have to be pretty uniform, and am wondering about using 7/16″ or 3/4″ tongue and groove OSB for the underlayment, and about using glue flooring instead of click. Any opinions? Thanks, andy

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  1. User avater
    IMERC | Apr 26, 2008 03:03pm | #1

    foam as in similar to foam rubber and how thick???

     

    Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming

    WOW!!! What a Ride!
    Forget the primal scream, just ROAR!!!

    1. snowboard | Apr 26, 2008 05:09pm | #2

      Thin foam, I guess. normal pad for floating floors. andy

      1. User avater
        IMERC | Apr 26, 2008 05:48pm | #3

        more information would be nice.... details... details... details..

        what is the subfloor now??? which product do you intend to use.. (brand name and type)....

        why don't you just use sound board and do a normal floor installtion on top of that??? 

        Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming<!----><!----><!---->

        WOW!!! What a Ride!Forget the primal scream, just ROAR!!!

        1. snowboard | Apr 27, 2008 06:42am | #5

          The subfloor is 150 year old planks with 150 years worth of patches where stairs and registers and other things used to be. Fairly flat and level. I am going to be using click-together bamboo. I did not know about sound board, that's why I haven't considered it. Do you think I can find it at Lowes or Home Depot? Is it designed for use as underlayment? andy

          1. User avater
            IMERC | Apr 27, 2008 12:53pm | #6

            dunno about Lowes ... never went looking for it....

            I don't shop home deperate...

            my regular yard stocks it... 

            Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming<!----><!----><!---->

            WOW!!! What a Ride!Forget the primal scream, just ROAR!!!

          2. User avater
            IMERC | Apr 27, 2008 12:56pm | #7

            underlayment...

            yup... 

            Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming<!----><!----><!---->

            WOW!!! What a Ride!Forget the primal scream, just ROAR!!!

          3. snowboard | Apr 27, 2008 07:19pm | #8

            thanks for your help. I'll look into it. andy

      2. User avater
        IMERC | Apr 26, 2008 05:55pm | #4

        sound proofing sound board 

        Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming<!----><!----><!---->

        WOW!!! What a Ride!Forget the primal scream, just ROAR!!!

  2. fingersandtoes | Apr 29, 2008 12:57am | #9

    Mapei makes a peel and stick membrane specifically for this. It is the rather unfortunately named Mapesonic SM. There are several rubber sound isolation mats like the Sound Down, that work very well too. The advantage to using them is that there is no guesswork as to the results you will experience. They are tested and have published STC and IIC sound ratings.

    http://www.mapei.com

    http://www.nriindustries.com

     

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