Re-sloping shower floor

wildeyesFebruary 11, 2011

I bought a totally-rehabbed home a few months ago with a huge walk-in shower. There is a single drain, at the south end, but the floor peaks in the middle, so half the floor slopes to the drain in the south end, but the floor to the north of the middle slopes to the end where there's no drain, and water thus pools. The builder/seller is going to fix it. His current suggestion is, since the current floor is functioning correctly in terms of water tightness (the assumption is that there's a properly-installed shower pan under the tile and no leakage), to install a new properly-sloped floor on top of the existing tile floor. The existing floor is a pretty mixture of 2 x 2 and some larger tiles, but I don't care if we go with all larger tiles for the new floor. I just want to know, first, if there is any problem with installing a new tile shower floor on top of an existing one. Here's exactly what the builder/seller proposed: "We would use a brush on water proofing membrane just for added sealant. We would slope the tile the appropriate way and bring up the floor drain as needed. We could lay the tile in a variety of designs. The logic is to not disturb an already functioning tile pan." Thoughts???

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aliceinwonderland_id

This does not sound like a good idea. Water will always migrate through grout. Failing to have the proper slope UNDER your tile will still result in a pool of water on the end where you currently have a problem.

To find experts, post your question on the bathrooms forum - Bill and Mongo over there really know their stuff. Or you could check out the John Bridge forum to find lots of tile gurus.

    Bookmark   February 11, 2011 at 3:08PM
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