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How we build

The part you will never see.

Showers fail behind the tile, not at it. This is how we build every one.

Orange KERDI-BOARD waterproofing on a shower wall and curbBehind the tile

Anatomy of a shower

Every layer, in plain English.

This is what is inside a shower we build, from the floor up. Hover over a number, or tap it, to see what it does.

Cutaway of a tiled shower showing the framing, subfloor, sloped pan, KERDI-BOARD waterproof boards, sealed seams, drain, curb, thinset, tile and grout1Subfloor2Wall framing3Sloped shower pan4Waterproof wall boards5Sealed seams6Sealed corners7Pipe and valve seals8Drain9Curb (the entry step)10Thinset mortar11Tile12Grout

Cutaway: Schluter-Systems KERDI-BOARD shower assembly.

  1. 1
    Subfloor

    The plywood floor under everything. It has to be flat, solid and dry before anything goes on.

  2. 2
    Wall framing

    The studs behind the wall. We check them for rot, straighten them and only then board over them.

  3. 3
    Sloped shower pan

    A foam-core base pitched toward the drain, so water always runs out and never sits.

  4. 4
    Waterproof wall boards

    Orange KERDI-BOARD panels. Water is stopped right here, not inside your wall.

  5. 5
    Sealed seams

    Every joint between boards is covered with waterproof tape (KERDI-BAND) bonded with thinset.

  6. 6
    Sealed corners

    Corners are where showers usually start to leak. We tape and seal every one.

  7. 7
    Pipe and valve seals

    Waterproof collars around the valve and shower arm, so water cannot follow the pipe into the wall.

  8. 8
    Drain

    Connected to the pan with a sealed flange, so the drain is part of the waterproofing.

  9. 9
    Curb (the entry step)

    Wrapped in the same waterproof layer as the rest of the shower.

  10. 10
    Thinset mortar

    The mortar layer that bonds the tile to the board.

  11. 11
    Tile

    The part you see and touch. By the time it goes up, the waterproofing is already done.

  12. 12
    Grout

    Fills the joints between tiles. It is the finish, not the waterproofing, which is why the layers below matter.

Built as a complete Schluter system, the assembly is eligible for their 10-year limited warranty. Our own work is warranted for 12 months. Ask us to walk you through it →

Old way vs. our way

Why bonded waterproofing.

The old way

  • Cement board with a rubber pan liner
  • Waterproofing under a thick mortar bed, not under the tile
  • Water passes through grout and stays in the bed
  • Slope floated by hand on site

How we build it

  • Schluter KERDI-BOARD, bonded directly under the tile
  • Water stops at the surface; the wall dries between showers
  • Seams, corners and penetrations sealed as one system
  • Eligible for Schluter’s 10-year limited warranty when built as a full system

On the job

Real stages, real walls.

Shower pan and wall boards installed before tileOrange Schluter KERDI-BOARD on shower wallsLarge-format slab tile going up on a shower wall

Warranty

12 months on our workmanship.

Manufacturer warranties on materials apply on top. We tell you exactly what is covered before we start.

Ask us anything →

Want to see the waterproofing before the tile goes on?

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