Floating SUB floor

Discussion in 'Vinyl / Impervious floor coverings' started by biglar, Sep 21, 2016.

  1. biglar

    biglar New Member

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    Hi -
    This is my first post. Very appreciative of any help. I am a home owner. Currently doing renovation of second floor of a 2 floor wood frame house. Live in Northeast (USA). This floor will be a rental - I live on ground floor.
    I am very concerned about noise transmission and for this reason spent quite a sum of money on installing a floating SUB floor (to decouple sound). See attachment. The sound isolators used are KIP isolators made by kineticsnoise (system will not let me include web address)
    The Sub floor is basically double plywood. (CDX). The top layer of plywood is screwed to the bottom but NOT to the joists. The subfloor has a very subtle "bounce" to it - as one would expect with a floating floor. I did NOT use backer board for my installation - just the double plywood.
    Now on to my questions- I will be installing carpet in the bedrooms but can't use it for dinning room / living room etc. I had planned to use some form of LVT (I want resilient flooring). I am now nervous about the various installation guidelines calling for a near-perfectly level floor. Can I use LVT over my FLOATING subfloor? Keep in mind that the subfloor isn't a trampoline - the "bounce" is quite small - but noticeable. I am not married to any particular brand (although my wife likes coretec). I imagine that glue-down might be better then click. I am happy to add an underlay if needed. My concerns are that
    - I don't have so rigid a finished floor such as to render my subfloor no longer floating. Also
    - I don't want the subtle movement of the subfloor to cause finished floor failure (cracking / separating etc.).
    If LVT not an option - any other resilient flooring to consider?
    THANKS!
     

    Attached Files:

  2. oddbod_jnr

    oddbod_jnr Well-Known Member

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    Hi a click system lvt will fail on that subfloor .
    Maybe even a flexible screed first then a stick down would be better but I can't see any installers guarantee it on the subfloor you have
     
  3. Spacey

    Spacey Super Moderator Staff Member

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    Sounds like one of the sports floor systems I install but we glue the two layers of ply together aswell as fixing. Fully stuck LVT works fine as long as the ply is thick enough minimum 9mm
     

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