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What is behind my 1940s bathroom tile?

Posted by po5mrk (My Page) on
Tue, Oct 25, 11 at 0:22

I recently had the pleasure of seeing 30+ of my bathroom tiles come crashing off the wall into the tub. I'm chalking this up to some cracked/missing grout which led to moisture behind the tile. There appears to be some sort of cement behind the tile, though I'm having trouble identifying it. I should say that I do not have the money or time to demo the walls and start over, and am leaning toward a mixture of re-tiling/re-grouting for a current solution. I am, however, concerned about mold and wonder how moisture-resistant the cement material is. Any suggestions?


Follow-Up Postings:

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RE: What is behind my 1940s bathroom tile?

Probably just the plaster. The bottom coats of plaster aren't the nice pretty white finish you see at the surface.

As for moisture resistant, you've seen what happens when it gets wet.

They make a pretty cheap and easy paint on waterproofing membrane for showers though. You paint on a couple coats and then tile right over it.


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RE: What is behind my 1940s bathroom tile?

Couple of questions, do you know what type of walls are in use in the rest of you house. In construction from the 30's they applied a cement type of material on typically on a metal mesh for bathroom locations. I can't say I've dealt with 40's bathrooms.

In my former mid 30's home the previous owners had removed old tiles and retiled over the base. For the most part it held good expect for an area where they had patched the opening for the recessed soap dish with a non water resistant material. I used a concrete patch to fill in the gap, and then used tile repair material available at most home stores. I had a tile guy come in for my 1/2 bath at that home to determine how to deal with some cracked and loose tiles and he mentioned that product is quite strong and it doubles as grout too. Just follow instructions.


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RE: What is behind my 1940s bathroom tile?

I have plaster walls in the rest of the house. The material behind the tile doesn't look, or feel, like the plaster in the rest of the house (it seems stronger than the plaster). I've looked into an adhesive and grout in one, though the person at the hardware store said it was really only suited for small jobs (4-5 tiles).


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RE: What is behind my 1940s bathroom tile?

So long as there are no cracks or loose areas of the mortar, you couldn't have a better subsurface to set new tile on. it's an old fashioned mortar bed, and I guarantee you, you'll pay hell getting it out, even with dynamite!


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