Shower Installation Guide

INSTALLATION — Bathtub Surround Assembly 17
Seams are constructed by overlapping the
edges of KERDI by a minimum of 2” (50 mm)
or by butting adjacent sheets of KERDI and
installing KERDI-BAND with unmodified thin-set
mortar, centered over the joint.
5
Install KERDI-BAND at inside wall corners and
wall/ceiling junctions* using unmodified thin-
set mortar, centered over the joints. Install
KERDI-KERECK-F pre-formed corners at inside
corners.
*Applies when installing KERDI on the ceiling. KERDI
application on ceiling is required for steam showers and
optional for showers and tub surrounds.
6
Install KERDI-SEAL-PS pipe seals at tub spout,
showerhead, body sprays, etc. and KERDI-
SEAL-MV mixing valve seal at the mixing valve.
As an alternative, KERDI-FIX or equivalent
sealant can be used to seal pipe protrusions
and protect moisture-sensitive solid backing
panels at the mixing valve.
7
Seal connections to knee walls using KERDI-
KERECK-F preformed outside corners and
unmodified thin-set mortar.
8
The KERDI waterproofing application is now
complete. Using a trowel that is appropriate
for the size of the tile, apply unmodified thin-set
mortar directly to the exposed KERDI surface
and install the tiles, ensuring full coverage.
9
Place painter’s tape to protect the tub deck.
Construct tub/wall connections using the KERDI-
BAND waterproofing strip or 5” (125 mm)-wide
cut sections of KERDI water-proofing membrane.
Apply unmodified thin-set mortar to solid backing
and completely fill the 1/4” (6 mm)-wide gap
between the solid backing and tub with KERDI-
FIX or an equivalent sealant.
1
Solidly embed KERDI-BAND in the mortar and
KERDI-FIX.
2
Protect walls and ceiling* from moisture
and vapor penetration using KERDI. Apply
unmodified thin-set mortar to walls and
completely fill the 1/4” (6 mm)-wide gap
between the solid backing and tub with KERDI-
FIX or an equivalent sealant.
*Applies when installing KERDI on the ceiling. KERDI
application on ceiling is required for steam showers and
optional for showers and tub surrounds.
3
Solidly embed KERDI in the mortar and KERDI-
FIX.
4
INSTALLATION
Bathtub surround assembly
Please refer to the Schluter
®
-Systems installation video in addition to reading the instructions below.
KERDI, KERDI-BAND, KERDI-KERECK-F, KERDI-SEAL-PS, and KERDI-SEAL-MV are installed using unmodified thin-set mortar (mixed to a fairly fluid consistency, but still able to
hold a notch). Dampen particularly dry and porous substrates in order to help prevent premature drying or skinning of the thin-set mortar. Apply the thin-set mortar using a 1/4" x
3/16" (6 mm x 5 mm) V-notched trowel or the Schluter
®
-KERDI-TROWEL, which features a 1/8" x 1/8" (3 mm x 3 mm) square-notched design. Embed the membrane into the mortar
throughout its entire surface to ensure proper adhesion and to remove air pockets. Periodically lift up a corner to check the fleece for full coverage. The sequence of membrane
installation can vary provided that a minimum 2" (50 mm) overlap is maintained at all joints and proper connection to the KERDI-DRAIN is established. Note: Top-over-bottom or
shingle laps of the membrane are not required.
KERDI-SEAL-PS/-MV KERDI-FIX