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Unread 09-14-2005, 10:11 AM   #1
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My Shower Ceiling

I know this is going to sounds dumb but I'm new at this. I had this idea of installing a cedar T&G plank ceiling in my tile shower. But after so much negative feedback on this idea (from other forums) I've decided to tile it instead.

Problem 1: I didn't install Kerdi on the ceiling because I was planning on installing the cedar. Can I install the kerdi without overlapping on top where it's already tiled. What can I do?

Problem 2: Is it possible to install 16" X 16" slate on the ceiling or will it be too heavy? If you look at the picture below the ceiling is 66" x 32". The perimeter and the middle has been screwed down.

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Unread 09-14-2005, 06:17 PM   #2
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Unless this is a steam shower and it doesn't appear to be one, you don't need the Kerdi on the ceiling, as for 16x16" slate, I have never installed that on a ceiling yet, I would use cementboard screwed to double the 3 of braces as normally would be up there, install the slate with a good modified thinset and put 2xs across under them to brace it overnight, just in case, maybe others can add to this.

Heck, we use Cedar outdoors for decks all the time, don't see why it can't be used on that ceiling, again, let's see what others say.
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Unread 09-14-2005, 08:00 PM   #3
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I've never seen cedar on a shower ceiling but don't see why it wouldn't work. You might want to cut the slate down to smaller pieces for the ceiling.

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Unread 09-14-2005, 09:55 PM   #4
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Thanks for the reply guys. Yeah I didn't think there would be a problem with a cedar ceiling either...but almost everyone on the woodworking forums thought I was crazy. The general opinion was that mold would start forming right away and the wood would start rotting in no time. How my idea is any different than people using cedar for a sauna I have no idea...but apparently it's not the same.

What about my Kerdi question...I have the drywall up already and some spare Kerdi. I just want to make sure it will hold up the stone.
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