Installing Shower Wall Surround Over Tiled Base

Old 09-10-15, 07:31 AM
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Installing Shower Wall Surround Over Tiled Base

I thought this was a fairly straightforward question, but can't seem to find an answer online and haven't ventured to THD yet. I'm redoing a basement bathroom. The bathroom has a poured concrete shower base that I'm tiling. I have no interest in tiling the walls as well, but I can't seem to find confirmation on whether shower wall panels (like you would buy at big box) can be installed above the tile floor.

Thoughts? Is this crazy talk?
Old 09-10-15, 07:50 AM
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Why not install a shower base & forget about the tiles completely. If you still want to go with your original plan, make sure that you create a lip so the bottom of the panels cover it.
Old 09-10-15, 04:19 PM
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Luke, welcome to the forums.

Many times it helps to add pictures to get us on the same page as you faster.

That out of the way, there is a lot more to building a waterproof shower than a hole in a concrete floor, tile and some walls. You basically need to build a large cup with only one outlet which is the drain. Cement, tile and grout are not waterproof, so your initial premise of tile over concrete is not a water tight solution. Custom showers consist of multi-layers of concrete, waterproofing membranes, more concrete and then tile - all leading to a specially designed drain that allows water that got past the first layer of concrete and mortar/grout to still be channeled to the drain.

This membrane is then taken 10 or so inches up the walls. The walls then have a shingled membrane that overlaps the base membrane partially up the walls to further ensure that all moisture stays to the inside of the shower and does not leak out.

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