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I'm tiling over a tub shower in my hundred plus year old house. I've already replaced lathe and plaster around tub as area with cement board. Since the ceiling is secure, I would like to apply tiles directly without backer board. I would also use moisture barrier over everything.

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  • Hi and welcome to Home Improvement. You told us what you intend to do but what is your question? – Michael Karas Mar 31 '19 at 11:21
  • I would guess that the extra weight of the tiles will pull that horsehair plaster from the ceiling lathes... – Solar Mike Mar 31 '19 at 11:28
  • Thanks for replies...and to clarify, my question was if this would be a bad idea to skip the backer board. As mentioned, the ceiling feels fairly solid from what I can tell. What I was trying to avoid was additional loss of ceiling height in an all ready low ceiling over the tub as I was originally thinking I'd loose 2 1\4" – Matt Apr 2 '19 at 3:11
  • ...of clearance. I located two joists running parallel to the tub and am thinking I could screw backer board into these if used with construction adhesive. Otherwise, I can just paint the ceiling. – Matt Apr 2 '19 at 3:36

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