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  • Subfloor Help

     Joe updated 4 months, 4 weeks ago 2 Members · 7 Posts
  • Danny Taylor

    Member
    March 5, 2021 at 12:08 pm

    Joe,

    In the areas where the original linoleum was installed (kitchen/entry), there is what appears to be a 1/4” birch underlayment that doesn’t exist on the rest of the floor. Should I tear it out or add underlayment to the remaining areas? Thanks.

    Danny

  • Joe

    Administrator
    March 5, 2021 at 1:03 pm

    I would probably tear it out. I will be the judge, but here is a video for you to watch.

    https://laminateuniversity.sothatshowyoudothat.com/how-to-demo-existing-floors/

    • Danny Taylor

      Member
      March 5, 2021 at 7:33 pm

      Started tearing it out and it is coming up easy. I know I saw a video somewhere about the maximum deviation in subfloor for LVP, but can’t find it now. I’m using a 3 foot level. What would be the maximum I should go without sanding or filling? Also, I think I read or watched a video that stated low spots could be filled with tar paper on a LVP install?

  • Danny Taylor

    Member
    March 5, 2021 at 1:17 pm

    Thank you.

  • Joe

    Administrator
    March 6, 2021 at 8:32 am

    You can fill low spots as you install the plank using tar paper. I would not get too concerned with minor dips. Have you found anything of concern?

    • Danny Taylor

      Member
      March 6, 2021 at 9:35 am

      I found only three spots of concern. One is around 3’x5’ with around 3/16” at the worst. The other two are around 2’x3’ with 3/16” depth. All are in heavy traffic areas. Several high spots need sanding and everything else is within 1/16” of level.

      Also, I’m having no luck finding Ardex Feather or Henry 948 locally. I suppose most any brand of self drying, cement-based finish underlayment will work?

  • Joe

    Administrator
    March 6, 2021 at 3:45 pm

    Henry 549. Yes, you can use something else or just use a modified thinset.

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