How to Create a Custom Shower Base
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The old shower base and underlayment is removed and the area thoroughly
cleaned. The studs  and sub-floor are inspected carefully for water damage and
replaced, if necessary.
After the drain line is inspected and the flange replaced, tar paper is put down and
then a wire scrim is installed. New mortar is installed in the shower area, carefully
built up and sloped to the new drain
Mortar is added as needed and carefully worked to insure a solid base is achieved.
After the slope of the mortar bed is double
checked, the bed is allowed to set up before more
work is done.
A water proof membrane is then installed over the mortar bed and up the side walls.
Then, cement backer board is installed on the surrounding walls. All seams are
taped and mortared.
The same steps are then taken to waterproof the shower curb. This mortar is also
allowed to cure before tile installation can begin.
Tile is installed using a thin set fortified mortar base. In this repair application,
complimentary tile is used on the walls because an exact match was not available
and a complete demolition of the shower was not necessary. A solid piece of marble
tops the shower curb, eliminating grout seams in this critical area.
After being grouted and let cure, this shower is ready for use.