Replacement Part List

3
SHOWER SYSTEM
Schluter
®
-KERDI-BOARD-KIT combines all
of the necessary components to waterproof
the walls of your bathtub and acrylic shower
base using waterproof building panels. The
kit includes ½" x 48" x 38" (1.25 cm x 122
cm x 97 cm) KERDI-BOARD waterproofing
panels, KERDI-BAND, pipe and mixing valve
seals, screws and washers, plus 290 ml of
KERDI-FIX sealant in bright white. The KERDI-
BOARD-KIT provides enough KERDI-BOARD
to cover up to 101 ft² (9.4 m²) of wall area.
Material Properties and
Areas of Application
SHOWER-T/-TS/-TT/-LT/-LTS/-SR
prefabricated substrates are manufactured
using lightweight expanded polystyrene. The
products require no special disposal and
can be recycled. No CFCs or HCFCs are
present in either the products or in the
manufacturing process. The polystyrene foam
trays have a density of 3.75 lb/ft
3
(60 kg/m
3
)
and the shower ramp, 4.0 lbs/ft
3
, all with a 48
psi (331 kPa) compressive strength at 10%
deformation. It is serviceable in temperatures
up to 175ºF (79ºC). The expanded polystyrene
used to manufacture KERDI-SHOWER-T/-
TS/-TT/-LT/-LTS/-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 (HDPE) 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.
8.1 Schluter
®
-KERDI