Waterproofing Tile Shower and Tub

3 responses

  1. Lisa Cady
    October 28, 2014

    Hi there,

    By cement board, do you mean Hardibacker? And do you also use a sealer such as Killz or Red Guard?

    • Tim Carter
      October 30, 2014

      Cement board is not Hardibacker. Read my past columns about cement board. Just type "cement board" into my search engine. I do not use a sealer before I install the tile.

  2. phil medley
    December 19, 2016

    hi , I did not use anything behind the cement board to seal it. should I put a sealer on the cement board ? thanks

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