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The only thing waterproof in a shower is the Red Guard (or whatever you use) over the backer. Most tile isn't 100% waterproof. Neither is the grout in most cases. Some, if not all Epoxy Grouts are. Hardi Plank siding is only as water proof as the paint and the flashing.
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(posting pictures as a helping hand)
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Thank you!
171717
Matt
If trees could scream, would we be so cavalier about cutting them down? We might, if they screamed all the time, for no good reason.
-Jack Handy
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Hmm..that's an interesting design (is that a cold-room/root cellar below that space?)
I'm just a DIY'er but I'd be inclined to treat it like a deck on a flat roof: pitch the floor (roof) away from the house, cover the whole floor and up the sidewalls a ways with waterproof membrane like EPDM, then install a floating walking surface over that.
The floating deck is so you don't compromise the waterproof membrane. One could do "tile" by using floating pavers.
-Mark
If I had a signature, this wouldn't be it.
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It is a basement. It stays about 55 degrees. I doubt the tile would.
Matt
If trees could scream, would we be so cavalier about cutting them down? We might, if they screamed all the time, for no good reason.
-Jack Handy
Posts: 64,651
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Joined: Feb 2007
Location: Merryland
Wow... that is odd. Can you take out the higher area on the left? Wonder if there's a way to pour concrete in there and tile over the concrete. Is it possible to do add some structural support under it?