Replacement Part List

3
SHOWER SYSTEM
deformation. It is serviceable in temperatures
up to 175°F (79 °C). The expanded polystyrene
used to manufacture KERDI-SHOWER-ST/-
SC/-SR is treated with a flame retarding
agent. Expanded polystyrene should not be
exposed to hydrocarbons, esters, amines, and
aldehydes. All will deteriorate foam. Exposure
to ultraviolet rays (sunlight) for long periods of
time will result in partial degradation (dusting)
at the surface.
KERDI-BOARD-SB/-SC prefabricated
substrates are manufactured using KERDI-
BOARD, made from extruded polystyrene
foam, with a cement-free reinforcement layer
laminated to both sides with an anchoring
fleece webbing. The surface features printed
gridlines consisting of 3/8" x 3/8" (10 x 10
mm) squares for precise cutting. KERDI-
BOARD is waterproof and vapor-retardant
and can withstand all chemical stresses that
typically occur in conjunction with ceramic tile
coverings. KERDI-BOARD will not warp, rot,
or decay. It is serviceable in temperatures up
to 158°F (70 °C).
Waterproofing Membrane
Since traditional shower pan liners are placed
below the mortar setting bed in conventional
assemblies, moisture is allowed to saturate
the mortar bed. This can increase the risk of
leakage, cause efflorescence, and foster mold
growth. Bonded waterproof membranes,
such as KERDI, are set on top of the mortar
bed and protect it from becoming saturated,
thus eliminating the problems associated with
traditional systems.
Application and Function
8.1 Schluter
®
-KERDI is a pliable, sheet-
applied, bonded waterproof membrane and
vapor retarder with limited crack-bridging
capabilities. It is made of soft polyethylene,
which is covered on both sides with a special
fleece webbing to anchor the membrane in the
thin-set mortar. Tiles can be installed directly
on the KERDI membrane using the thin-
bed method. Other trowel-applied covering
materials, such as plaster, can also be used.
Schluter
®
-KERDI-DS is a bonded waterproof
membrane and vapor retarder with very low
water vapor permeance for use in continuous
use steam rooms and similar applications.
Various KERDI waterproofing accessories
are available. Preformed, seamless corners
include the following. KERDI-KERECK-F are
used to seal 90° inside and outside corners.
KERDI-KERS-B are used to seal 135° corners
at triangular shower benches and neo-angle
shower curbs. KERDI-KERS are used to seal
floor/wall/shower base connections in curbless
shower applications where the KERDI-LINE
linear drain is installed adjacent to the wall.
KERDI-SEAL-PS/-MV are prefabricated
sections of KERDI with overmolded rubber
gaskets that are used to seal pipe protrusions
through the KERDI waterproofing membrane
(e.g., at showerheads and tub spouts) and
protect moisture-sensitive backing panels at
the mixing valve. Use KERDI-BAND, in widths
of 5" (12.5 cm), 7-1/4" (18.5 cm), or 10" (25
cm), to seal butt joints or corner joints. KERDI-
FLEX, in 5" (12.5 cm) or 10" (25 cm) widths, is
used to seal expansion joints or flexible edge
joints.
Material Properties and
Areas of Application
KERDI features a modified polyethylene (PEVA)
core with non-woven polyproplyene on both
sides. KERDI-DS features a high-density
polyethylene (HPDE) core with non-woven
polyproplyene on both sides. KERDI is 8-mil
thick and has a water vapor permeance of 0.90
perms, when tested according to ASTM E96,
using Procedure E at 90% relative humidity.
KERDI-DS is 20-mil thick and features additives
to produce a water vapor permeance of 0.18
perms.
KERDI and KERDI-DS are waterproof and
resistant to most chemicals commonly
encountered in tiled environments. They are
resistant to aging and will not rot. KERDI
and KERDI-DS are highly resistant to saline
solutions, acid and alkaline solutions,
many organic solvents, alcohols, and oils.
Information regarding their resistance
to specific substances can be provided if
concentration, temperature, and duration
of exposure are known. For acid-resistant
coverings, use an epoxy adhesive to set and
grout the tile.
KERDI and KERDI-DS are used on wall
and floor surfaces where protection against
the penetration of moisture or other harmful
substances is necessary. KERDI is suitable for
showers, intermittent use steam showers, tub
surrounds, and areas surrounding swimming
pools. Industrial applications include the food
industry, breweries, and dairies. KERDI-DS
is suitable for use in continuous use steam
rooms and other applications with similar
vapor management requirements.
KERDI and KERDI-DS meet the American
National Standard for Load Bearing, Bonded,
Waterproof Membranes for Thin- Set Ceramic
Tile and Dimension Stone Installations (ANSI
A118.10). The membranes are listed by
cUPC® and evaluated by ICC-ES (Report
Nos. ESR-2467 and PMG-1204). For
copies of these documents, please contact
Schluter
®
- Systems at 800-472-4588 (USA) or
800- 667-8746 (Canada) or by e-mail at info@
schluter.com. Links to the documents can
also be accessed at www.schluter.com.
KERDI and KERDI-DS have
been evaluated according to the "Standard
Method for the Testing and Evaluation
of Volatile Organic Chemical Emissions
from Indoor Sources Using Environmental
Chambers, Version 1.1" for California
Specification 01350 and found to comply
with the VOC requirements. California
Specification 01350 is referenced by
various green building standards and rating
systems.
Waterproof Building Panel
The KERDI-BOARD waterproof building panel
simplifies shower installation by combining
the tile backing and waterproofing installation
into a single step. KERDI-BOARD gives tile
setters more control over their projects by
providing them with the means to simply
and easily create ideal substrates for tile.
Unsuitable substrates can be remedied and
new substrates can be created while keeping
the requirements of the tile covering in mind.
Application and Function
12.1 Schluter
®
-KERDI-BOARD is a
multifunctional tile substrate and building panel,
which can also be used for creating bonded
waterproofing assemblies with tile coverings.
It consists of an extruded polystyrene foam
panel, with a special reinforcement material
on both sides and fleece webbing for effective
anchoring in thin-set mortar.
12.1 Schluter
®
-KERDI-BOARD
8.1 Schluter
®
-KERDI