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Unread 06-28-2011, 08:17 AM   #1
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Join Date: Jan 2008
Posts: 38
Joint compound on Greenboard - Durarock seem?

Hello, and thank you very much for in advance for your input.

I am in the middle of a bathroom remodel. I put green board everywhere except in the tub shower area, where I put durarock.

The taper taped the seem where the greenboard meets the durarock at the edge of the tub, as well as where the cieling meets the durarock.

The joint compound enters partially into the shower area that will be tiled.

1) if starting over how should the green board, durarock intersection be handled?

2) Can I just redgaurd and tile

3) If "No" to 2, Can I just kedi all or part of the surround (making sure to cover any drwall coumpound with kerdi.


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Unread 06-28-2011, 08:38 AM   #2
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Join Date: Jun 2011
Location: Utah
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I swear every other person on here is named Joe

I will be doing this same thing soon and found several good threads about it when reading here the other day.

I tried to attach some links but can't. Do a search for "cement board green board joint." Lots of stuff came up including info on Redguard.

Good luck!
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Unread 06-28-2011, 09:38 AM   #3
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Joe (both of you), that joint should be outside the wet area of the shower, so you have your choice to use either thinset and CBU tape or drywall compound and drywall tape. My druthers would be to use CBU tape and thinset if the joint is covered by tile, and the other, if painted.

If the drywall extends into the wetted area (behind the curtain or shower door, you can either cover with Kerdi or rework the backerboard and drywall to move the joint. Redgard is not approved to protect drywall in a shower.

JoeFog, if you think there a lot of Joes around here, check out the number of Bobs and Daves we have.
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