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Unread 08-06-2004, 07:53 PM   #3
Kitchen & Bath Remodeler
Join Date: Mar 2004
Location: Madison, New Jersey
Posts: 2,435
Hi Jen,

You would notch the 2x4's about a 1/4 inch, just so the pan liner material is recessed and not sitting on the surface. You want the cbu's to be flat and not bulge out at the bottom causing the tile to look bad. Notch the 2x4's first and then install 2x10 blocking all the way around the shower for pan liner support. You can set the blocking in 1/4 inch to line up with the notched 2x4's.

Poly moisture barrier goes up before cbu's and runs down over the pan liner, so it water gets behind the tile and cbu's it will go over the liner and down the drain.

Here is where a picture would help, but I haven't got any of construction in process, just final pictures.
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