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Unread 07-01-2005, 12:42 PM   #1
MChartre
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Transition From Cbu To Drywall

I am working on my shower and I have only a few things to do before I tile. I have followed all the advise I could find here. The tile will extend past the cbu onto the drywall (this is out of the shower). Should I tape at the cbu drywall joint (the drywall is orangepealed and painted in latex). Im pretty sure this is a no brainer, but if so, with what. When the tile extends out onto the drywall, is thinset still appropriate? Is some sort of drywall prep recommended?

Hopeing to lay tile this weekend.

Thanks and Happy Birthday America,

Mike
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Unread 07-01-2005, 02:19 PM   #2
chassis
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Awesome question, I have the same situation. Hope the gurus chime in on this one. I think CBU tape and thinset is the way to go for the CBU/drywall joint. My layout will have half of one wall tile straddling the CBU/dw joint.
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Unread 07-01-2005, 05:15 PM   #3
Rd Tile
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If the tile continues past the taped section and onto the drywall, use thinset.

If the tile ends on the taped section, use joint compound, you do not want thinset showing on half a taped section, hard to finish this area off for paint or wallpaper.
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Unread 07-01-2005, 05:43 PM   #4
MChartre
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Can I expect good adheasion on the painted wall?

Mike
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Unread 07-03-2005, 05:49 PM   #5
John Bridge
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Hi Mike,

Thin set will certainly stick to paint. It's when you put tile over it that problems can develop. I would try to scrape most of the paint off. At least scar it up a lot to create a "tooth."
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Unread 07-03-2005, 10:43 PM   #6
MChartre
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Thanks for the info John and others. I really appreciate it. Next week I will be setting a 3' by 3' mesh backed mosaic. Any suggestions? I may be able to cut it into 18" square sections. What would be appropriate for the trowel. This mosaic has some relatively small peices, and the grout will be about 3/8 to 7/16 in some places.

Thanks.


Mike
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Unread 07-04-2005, 07:11 PM   #7
hamlet_jones
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You know, I had the same delema. I put the tape and plaster really thick on the BACK side of the CBU/drywall, and nothing on the frount, and the last course of tiles straddled the cbu/drywall. The tiles went on very level, an no tiles have fallen off in 8 years!

cbu = durock

-hamlet
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