Can kitchen floor tile(porcelain)be layed on wood?

I am being told that it is supposed to be on ceramic board? Is this code? My floor tile came up after 2 yrs(new construction)and is being redone but there was no mention of ceramic board being put down. There is just a wood floor.
code or not?

Cement board (not ceramic board) is not required by code, but it is the best substrate for ceramic tile. The plywood or OSB subfloor has a tendency to flex, which the ceramic does not. This difference is what caused the failure of the floor.

Unfortunately, there probably is no way to go after the contractor this long after the installation. You will need to replace the floor, and this time specify that you want cement board installed. Hope this helps.

EDIT: NOT code. The Uniform Dwelling Code has standards for the type of subfloor your house is built with, but does not have any reference for the finish flooring. There are accepted practices, but there is no code that requires cement board.

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  3. Can I install a wood floor over ceramic tile?
  4. How do i install ceramic tile over existing wood flooring?
  5. How do you put tile over a wood floor?

6 Responses to “ Can kitchen floor tile(porcelain)be layed on wood? ”

  1. Chris.I says:

    No it can’t be laid on wood. Your supposed to use Cermamic board, or wonder board, so the grout bonds tight to it, and yes your right, it’s the code.
    References :

  2. woodtick314 says:

    Cement board (not ceramic board) is not required by code, but it is the best substrate for ceramic tile. The plywood or OSB subfloor has a tendency to flex, which the ceramic does not. This difference is what caused the failure of the floor.

    Unfortunately, there probably is no way to go after the contractor this long after the installation. You will need to replace the floor, and this time specify that you want cement board installed. Hope this helps.

    EDIT: NOT code. The Uniform Dwelling Code has standards for the type of subfloor your house is built with, but does not have any reference for the finish flooring. There are accepted practices, but there is no code that requires cement board.
    References :
    Carpenter.

  3. TileDepot says:

    Both Chris and woodthic are 100% right,

    Best is to have floating cement before installing any stone, but any type of cement board will do the job

    References :

  4. Arthur G says:

    You will need to add additional underlayment prior to installing the ceramic tile. Tile installed over wood floor systems MUST have a minimum of 1-1/4 inches of solid material beneath it. This means you can have a 3/4 inch wood subfloor covered by 1/2 inch plywood, cement board, or approved gypsum fiber underlayment.Both will perform exceptionally as long as you install them carefully

    Ceramic tile is a very rigid material. Most ceramic tiles have very little tensile strength. In other words, if you try to bend or stretch a tile it will crack. Some wood floor systems, when designed to minimum standards, have too much bounce. This bounce will crack the tiles.

    for other information you can check my source site
    References :
    http://www.ciciliotandson.com/index.php

  5. Agusto G says:

    I don’t recommend it. Installing tile directly over hardwood planks can cause issues.

    If the subfloor is adequate, I would remove the planks, and install a 1/2" thick cement board (called a CBU) to the subfloor with thinset and screws. Then you can safely install tile on the cement board.
    References :
    http://www.findanyfloor.com/forum/DoItYourselfInstallation/Tile/tileoverhardwooddirectly-1066.xhtml