Installation Guide

ManualsBrandsSchluter ManualsBathKerdi-Shower 72 in. x 72 in. Shower Kit in ABS with Stainless Steel Drain Grate

24 INSTALLATION — Shower base with Schluter

-KERDI-DRAIN

Remove the clamping ring from the installed

drain and save the bolts. Align the bolt

pattern of the clamping ring with the adaptor

ring and punch the matching inserts through

the adaptor ring.

Apply a 1/4" - 3/8" (6 mm - 10 mm) bead

of KERDI-FIX to the installed drain flange.

Place the adaptor ring on the installed

drain, re-insert the bolts, and tighten evenly.

Make bolts finger-tight plus 1/4 turn;

over tightening may warp the ring and result

in leaks.

Slide the adaptor flange into the adaptor ring

and ensure full support under the adaptor

flange with mortar. The mortar bed is then

placed according to the instructions on

page 23.

Clamping Ring Drain Installed: If a clamping ring drain is installed, replace with KERDI-DRAIN or convert using the KERDI-DRAIN adaptor kit.

If necessary, cut the KERDI-SHOWER-SC/-SR curb or ramp to length using a handsaw.

Apply unmodified thin-set mortar to the floor

and to the edge of the shower base and

walls using a 1/4" x 3/8" (6 mm x 10 mm)

square- or U-notched trowel.

Press the curb or ramp firmly into place.

Check the underside of the curb or ramp

to ensure that full coverage and support

is achieved.

Schluter

-KERDI-SHOWER-SC/-SR shower curb or ramp

Waterproofing the shower base

The KERDI or KERDI-DS waterproofing membranes can be installed over the KERDI-SHOWER-ST tray immediately or over a mortar bed as soon as the

mortar bed can be walked upon using unmodified thin-set mortar. The thin-set mortar must be mixed to a fairly fluid consistency, but still able to hold a notch.

Apply unmodified thin-set mortar to the bonding

flange and surrounding shower base with a

1/4" x 3/16" (6 mm x 5 mm) V-notched trowel

or the KERDI-TROWEL. Note: When using the

stainless steel drain, the membrane is adhered

to the bonding flange with KERDI-FIX; clean the

bonding flange prior to KERDI-FIX application.

Embed KERDI or KERDI-DS in the bond

coat and work the membrane onto the

KERDI-DRAIN bonding flange and shower base

to ensure full coverage and remove air pockets.

The membrane is carried to the step in the

bonding flange (template provided) and to the

edges of the shower base.

Repeat the process to install the membrane

over the curb or ramp. Seams in the membrane

are constructed by overlapping the edges

by 2" (50 mm) or by abutting adjacent sheets

and installing KERDI-BAND centered over the

joint. Install KERDI-KERECK at all inside and

outside corners.

Note: Schluter

-KERDI-BOARD can be used to

build custom curbs, which are installed similar to

KERDI-SHOWER-SC.

Note: Schluter

-Systems recommends a leak test be performed on the connection between the drain

and the waste line prior to continuing with the remainder of the installation whenever possible.