Installation Guide

ManualsBrandsSchluter ManualsBathKerdi-Shower 72 in. x 72 in. Shower Kit in ABS with Brushed Brass Anodized Aluminum Drain Grate

32 INSTALLATION — Bathtub surround — Schluter

-KERDI-BOARD

KERDI-BOARD can be mounted

vertically or horizontally on framing with

appropriate screws and corresponding

KERDI-BOARD-ZT washers. Minimum board

thickness = 1/2" (12.5 mm) for studs spaced

at 16" (40.6 cm) o.c.; 3/4" (19 mm) for studs

spaced at 24" (61.0 cm) o.c. Screws must

reach a depth of at least 3/4" (20 mm) in wood

studs and at least 3/8" (10 mm) in metal studs.

Abut panels over the center of the studs

or other solid backing. Screws may be

placed between adjacent panels such that

the washers fasten both panel edges. The

maximum allowable on-center fastener

spacing is 12" (30 cm) for walls and

6" (150 mm) for ceilings.

Place painter’s tape to protect the tub deck.

Apply unmodified thin-set mortar to the

KERDI-BOARD using a 1/4" x 3/16"

(6 mm x 5 mm) V-notched trowel or

the KERDI-TROWEL. Completely fill the

1/4" (6 mm)-wide gap between the

KERDI-BOARD and tub with KERDI-FIX or

other suitable sealant.

Note: When KERDI-BOARD is installed

above the tub flange, apply KERDI-FIX to

the tub flange and spread using a small

notched trowel.

Schluter

-KERDI-BOARD over wood or metal framing

Apply KERDI-BAND waterproofing strips.

Solidly embed the membrane in the mortar

and KERDI-FIX to ensure full coverage and

remove air pockets.

KERDI-BOARD joints, corners, and fastener

penetrations are sealed with KERDI-BAND,

ensuring a minimum 2" (50 mm) overlap.

Any protrusions through the panel

(e.g., mixing valve, shower head, etc.)

must be sealed with KERDI-SEAL-PS/-MV,

KERDI-FIX, or other suitable sealant.

Seal connections to knee walls using

KERDI-KERECK-F preformed corners and

unmodified thin-set mortar.

Grab bars or other heavy objects must be anchored in the structure or solid blocking behind KERDI-BOARD. Installation instructions for other applications

of KERDI-BOARD (e.g. fully embedded or spot-bonded over solid backing) can be found in the 12.1 Schluter

-KERDI-BOARD technical data sheet.

Note: See page 21 for KERDI-BOARD-SN

shower niche installation instructions.

KERDI-SEAL-PS/-MV

Once all seams, corners, and knee walls

have been completely sealed, the assembly

is waterproofed and ready to be tiled.