How I float a shower for tile using old school tile methods taught to me by union trained tile setters from the San Francisco Bay Area in the late 1990's. These methods were developed by plasterers and adapted to tiled shower surfaces in the 1920's. Fat mud mortar (sand, cement, and lime in a 5-1-1 ratio) is placed over a metal reinforcement, either stucco netting (chicken wire) or expanded galvanized lath. The mortar is then screeded off of redwood strips that are placed strategiaclly on the wall to provide a flat, plumb, square, and strong setting surface for ceramic, stone, or porcelain tiles. The finished mortar bed thickeness varies, but it usually ends up between 3/8" and 3/4".
Proponents of this installation method (TCNA B441) argue that there is no faster way to achieve a perfectly flat and true tile setting surface. Opponents of this method argue that it is too labor intensive, too messy, and out of style. They argue that newer methods can achive the same results with less effort.
For the video on the pan liner installation here is the link:
• How I do a Pan Liner -...
For the video on the shower pan dry pack mortar bed:
• How I Float a Shower P...
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