Series: How to Build a Traditional Shower Floor

This series covers building a traditionally waterproofed shower floor using a clamping drain and rubber liner. Each step builds on the previous one.

  1. Building the curb and installing the pre-slope
    Creating the foundation that ensures water moves toward the drain — not into your framing.
  2. Positioning and installing the shower liner
    Correct placement of the liner over the pre-slope and into the drain assembly.
  3. Forming the liner around the curb and flood testing <-You are here
    Properly wrapping the curb and verifying the liner is watertight before moving forward.
  4. Finishing the drain and forming the level perimeter
    Setting drain height and creating a consistent, level perimeter for the final mud bed.
  5. Tying in wall waterproofing and finishing the mud bed
    Integrating the walls with the floor and completing the final sloped surface.
  6. Building a shower floor – Video
    Time-lapse video of creating a shower floor

Well now we’re ready to waterproof your curb. If you have reached this post before reading the previous two, start with How to build a shower floor from the beginning.  Now that you’re ready to get the curb cut and waterproofed lets get it done.

And yes, I know my pictures suck – I’m a tile guy for cryin’ out loud, not a professional photographer. Until you try to balance a liner, a razor knife, a margin trowel, and a camera while trying to take a photo don’t give me any crap about it. Oh, and you can click on any of the images for a full-size version – partake in the full glory of how much my photography sucks.

We need to start by finding the inside lower corner of your shower pan and making certain that the liner is pressed firmly against it. Then follow it up the corner of the curb and wall to the top inside corner of your curb. This is the spot at which you will start the cut in your liner.

[continue reading…]