Comments on: How to Build a Niche for your Shower – Part 2 http://floorelf.com/how-to-build-a-niche-for-your-shower-2 Help with all your tile needs (and extreme jackassery!) Wed, 08 Feb 2012 15:37:24 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Roger http://floorelf.com/how-to-build-a-niche-for-your-shower-2/comment-page-2#comment-7957 Roger Fri, 03 Feb 2012 01:54:49 +0000 http://floorelf.com/?p=700#comment-7957 Then it sounds like there isn't a moisture barrier behind the concrete board. Is there plastic or roofing felt between the cement board and studs? If not then it will continue to get the surrounding structure wet. Concrete board is not waterproof, it is water stable. It won't warp or fall apart when wet, but it will soak in moisture and retain it. That's completely normal but there does need to be a barrier behind it to keep the water inside the shower and away from the studs and adjoining walls. Then it sounds like there isn’t a moisture barrier behind the concrete board. Is there plastic or roofing felt between the cement board and studs? If not then it will continue to get the surrounding structure wet. Concrete board is not waterproof, it is water stable. It won’t warp or fall apart when wet, but it will soak in moisture and retain it. That’s completely normal but there does need to be a barrier behind it to keep the water inside the shower and away from the studs and adjoining walls.

]]> By: Nora http://floorelf.com/how-to-build-a-niche-for-your-shower-2/comment-page-2#comment-7953 Nora Fri, 03 Feb 2012 01:14:14 +0000 http://floorelf.com/?p=700#comment-7953 Thank you Roger for getting back to me. The portion of the shower wall that has been covered with tile is concrete board but above the tile level is drywall to the ceiling. Thank you Roger for getting back to me. The portion of the shower wall that has been covered with tile is concrete board but above the tile level is drywall to the ceiling.

]]> By: Roger http://floorelf.com/how-to-build-a-niche-for-your-shower-2/comment-page-2#comment-7929 Roger Thu, 02 Feb 2012 02:11:32 +0000 http://floorelf.com/?p=700#comment-7929 Hi Nora, I attach the back of niches to the adjoining wall all the time. I, however, use a topical membrane which means that neither substrate (the niche backer or the drywall in the other room) ever sees moisture. The moisture at the bottom of the drywall is NOT normal, and is a sign of an incorrectly built shower. Is the wall of the shower drywall as well? Hi Nora,

I attach the back of niches to the adjoining wall all the time. I, however, use a topical membrane which means that neither substrate (the niche backer or the drywall in the other room) ever sees moisture. The moisture at the bottom of the drywall is NOT normal, and is a sign of an incorrectly built shower. Is the wall of the shower drywall as well?

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