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Questions and Answers for James Hardie HardieBacker 0.25 in. x 3 ft. x 5 ft. Cement Backerboard

Internet #100183556

Model #220022

Store SKU #180869

  • Tile backer board for shower, countertop and floor installations
  • Floor underlayment for laminate, vinyl, wood and more
  • Moisture resistant cement backer board for tile floor and walls

Questions & Answers

411Questions
caret
Q:Can this be used on exterior and exposed to elements?
by|May 14, 2024
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caret
Q:I'd like to put this right over existing plaster walls - is this OK? I will vapor barrier over plaster, then backer board, tape seams, redgard, tile. I put extra studs behind plaster for added points of attachment/support.
by|May 13, 2024
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A:  just increase the fastener length of the screws the thickness of the plaster

by|May 13, 2024
    caret
    Q:Can you use on walls to tile
    by|May 7, 2024
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    A:  Yes, but the horizontal seams needs to be supported by blocking or over a sheathing.

    by|May 8, 2024
      caret
      Q:Should I put this before putting laminate floor down in bedroom
      by|Apr 24, 2024
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      caret
      Q:Can this be use on the ceiling in a bathroom?
      by|Apr 20, 2024
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      caret
      Q:How many screws are required to fasten one sheet of the 1/4” hardi backer board
      by|Apr 19, 2024
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      A:  About 36 fasteners would be needed

      by|Apr 19, 2024
        caret
        Q:Hi, can these be installed directly on concrete foundation? Are there any special primers needed?
        by|Apr 13, 2024
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        caret
        Q:Can I use this product under a natural clay plaster finish for interior wall application? I was thinking a scratch coat of an acceptable substrate and then a color top coat. Am hoping for a total thickness (hardieboard plus 2 plaster coats) of about 1/2"
        by|Mar 28, 2024
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        A:  It should work if you put blocking on the horizontal seams.

        by|Mar 28, 2024

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