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Unread 12-24-2018, 06:40 PM   #7
Veteran DIYer- Schluterville Graduate

STAR Senior Contributor

Join Date: Jul 2004
Location: Nashua, NH
Posts: 14,076
Moisture resistant drywall has not been an approved substrate for tile in a shower for a long time now. IMHO, it really doesn't have a good use anywhere. People think of tile and grout as being waterproof, that's not only false, it is also recognized as not valid in the plumbing code.
Jim DeBruycker
Not a pro, multiple Schluter Workshops (Schluterville and 2013 and 2014 at Schluter Headquarters), Mapei Training 2014, Laticrete Workshop 2014, Custom Building Products Workshop 2015, and Longtime Forum Participant.
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