So would it be an issue to build the shower with the pan liner below the mortar bed and install a waterproofing membrane on the shower curb and corners only but not across the entire shower bed.
Making a concrete shower curb.
As you might expect different people use different methods to build shower curbs.
There is no better way to build a curb.
A good shower curb keeps water contained in the shower area preventing you from soaking the bathroom floor.
Traditionally wooden curbs utilize lengths of two by four lumber cut down to the width.
Shower curbs have been built from portland cement mortar for as long as showers have been around.
This video shows how to create a shower curb frame from a metal mesh.
Using cement mortar to complete your shower curb is necessary even when you ve selected the cement backer board method for the shower walls.
This means it doesn t take in water through leaks allowing it to last longer.
The curb is the edge of your pan that isn t along a wall and where you would step into the shower.
This metal metal mesh is a diamond mesh specially designed for cement floating and it i.
Build a curb for the shower pan using 2 in 4 in 5 1 cm 10 2 cm boards.
Find the length of the side of your shower area that doesn t have a wall.
A great and well made shower curb does all that and is fully waterproof.
It is a simple diy process and i use three 2x4s to build a nice curb for the shower in my washroom.