Installing Shower Mixing Valve before laying tile in shower...


Old 02-06-16, 10:35 AM
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Installing Shower Mixing Valve before laying tile in shower...

The question at the bottom will be... "How thick will the finished wall be? (Concrete board + Thin set + Tile)

I want to mount the shower mixing valve before I put up the concrete board and tiles. The valve needs to be mounted so the plastic cover is flush with the finished tile wall.

Here is my calculation
0" (4 mil plastic)
1/2" (Concrete board)
0" (Red Guard)
+ 1/4" ( Thin set - 3/8 x 1/4" x 1/4" trowel)
+ 1/4" (Tile thickness)
= 1"

i.e. Place the edge of the plastic covering on the valve 1" past the stud)

My question is... "How thick will the finished wall be?"

Hoping to hear some opinions from a few experts... Because I am not one! I had considered adding something blatantly wrong to get the internet people going, but I decided not to!!!

This is the shower head I'm installing...
MOEN Ashville 1-Handle Shower Faucet in Spot Resist Brushed Nickel-82968SRN - The Home Depot
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Old 02-06-16, 03:34 PM
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Join Date: Jul 2008
Location: NY
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I'm not 100% sure but it sounds like your calculations are correct. May I suggest a different shower body? Hans Grohe has a shower body that remembers the temperature of your last shower. It's more expensive then what you chose but worth every dime.
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