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Unread 09-17-2019, 11:29 PM   #1
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Join Date: Feb 2018
Location: Sarasota,FL
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Tile on Tile Shower Pan

So a prospect calls and says she is new to area and just finished firing a bunch of Home Depot Hacks after paying them 37k of a 50k remodeling contract for kitchen and bath. She wants me to replace all the lippage floor tile and finish tiling the sunken shower pan the HD Hacks had started. What I find is existing 4x4 floor tile Red Guarded for what she thinks is ready to tile. That is until I inform her the drain lip is 1/4" higher than the red guard and the red guard will block water trying to drain through the existing top mud, if it even has a 3-part drain.

I quote her a shower pan demo / rebuild but she finds a "tiling specialist" wiling to tile over waterproofed shower tile.

What's viability of tile over tile in the shower pan?

What about tile over red guarded tile in the shower pan?

Never thought this made any sense even before considering possible lack of a clamping flange or bonded flange drain
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Unread 09-18-2019, 12:10 AM   #2
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Location: Turlock, CA
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Client is ill informed and misguided in her notions of an education about a proper shower build/system. Dead give away with her choice in Home Depot remodelers.

I’d do as you and bid it as a rebuild, to ensure you have the opportunity to correct any and all hidden treasures(defects). Anything short of that I would politely pass up the job, and be glad I dodged a nightmare. My choice is to only go over my own prep work (except for a hot mop), never others because once you start a job you own it regardless of the conditions.
Christopher Machado 1 (916) 990-1751
Rest In Peace Joey Peres (7/16/95 - 8/31/19).
“When you bid it to get it, don’t be mad with what you get.”
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Unread 10-03-2019, 05:46 PM   #3
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Frans said , "That is until I inform her the drain lip is 1/4" higher than the red guard and the red guard will block water trying to drain through the existing top mud". I kind of disagree. Yes, the Redgard will want to block the water but it's nearly impossible to get a positive seal when you paint up to the grate section of the drain. So, the water will probably be somewhat blocked but will seep in around the grate. The question is, how well is the next layer of waterproofing sealed, if there is another layer.

I'd do the same as Christopher, I'd rip it out completely or do nothing.

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