shower in the basement [Archive] - Ceramic Tile Advice Forums - John Bridge Ceramic Tile


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02-21-2008, 07:24 PM
hey guys, done a few conventional showers, but never one in a basement, on a slab. Any need for a membrane? Heard that you could put thinset down and then deck mud on a slope and then tile directly over that. Correct or incorrect? Didn't see anything in the Liberry on this. Any help would be greatly appreciated. Thanks.

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02-21-2008, 07:26 PM
Yes, you still need a membrane in the basement. It should be treated no differently than any other room in the house.

02-21-2008, 07:48 PM
and Bruce... Don't forget your exhaust fan... :)

02-21-2008, 07:49 PM
Yep, do it just like it were upstairs, still need a preslope too.

02-21-2008, 07:56 PM
So , use thinset on the slab for adhesion , comb it out and let it dry that way, then pre-slope with deck mud, membrane, and then second layer of deck mud, and then tile , right?

02-21-2008, 08:14 PM

Thinset on the slab for adhesion but apply the mud on top of the thinset while it's still wet, don't let it dry. That's how the preslope is built over a slab. Then membrane then final slope. :)

02-21-2008, 09:28 PM
comb that thinset out or trowel it on and smooth it, I assume comb it out. Thanks.

02-22-2008, 10:09 AM
Brusu, comb it, trowel it, brush it, whatever. It's mixed much looser/wetter than normal, more of a slury than anything else. Just get some on the slab then dump your mud onna floor. Roll up your sleeves and start having fun. :)

02-22-2008, 07:41 PM
Thanks for the advice!