Installation Guide

28 SHOWER ASSEMBLY — Shower base with Schluter

-KERDI-LINE

Waterproofing the shower base

The KERDI-SHOWER-L/-LS trays are provided with integral waterproofing. When using a mortar bed, the shower base must be made waterproof using the

KERDI or KERDI-DS waterproofing membrane. The membranes can be installed as soon as the mortar bed can be walked upon.

Apply unmodified thin-set mortar to

the shower base with a 1/4" x 3/16"

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

KERDI-TROWEL. The thin-set mortar must

be mixed to a fairly fluid consistency, but still

able to hold a notch.

Embed KERDI or KERDI-DS in the bond

coat and work the membrane onto the entire

surface to ensure full coverage and remove

air pockets. The membrane is carried to the

stainless steel bonding flange and to the

edges of the shower base.

Seams in the membrane are constructed by

overlapping the edges by 2" (50 mm) with

unmodified thin-set mortar or by abutting

adjacent sheets and installing KERDI-BAND

with unmodified thin-set mortar, centered

over the joint.

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.

The KERDI collar on KERDI-LINE is integrated

with the adjoining waterproofing assembly

using unmodified thin-set mortar. The KERDI

collar must be cut and folded where the

KERDI-LINE is installed adjacent to walls.