Making A Custom Shower Curb 

Very important to remember when hanging your backer board NOT TO PUNCTURE THE VINAL MEMBRANE. I cannot tell you how many custom showers I have torn out because the installers put nails or screws into the pan liner below the water line. This WILL leak, even on vertical surfaces. Notice how Mike has face screwed the OUTSIDE of the curb. What you do not see is that he made sure none of the horizontal, and vertical surfaces below the water line have been punctured. What you can see is that he made sure the vertical sheets of Durock are cut snugly around the ends of the curb piece so he does not need to fasten it from within the shower's wet area. Once all seems are taped and mudded, and the concrete floor is poured over the liner, the Durock on the curb will be monolithic with all cementitious materials, thus eliminating the need for fasteners on the top and inner sides of the curb.

Great job!

Nice! Great work.