Use and Care Guide
FLOOR DRAINS
5
The thin-set mortar must be mixed to
a fairly fluid consistency, but still able to
hold a notch.
a. KERDI: Apply Schluter SET™,
Schluter ALL-SET™, Schluter FAST-
SET™ or unmodified thin-set mortar
to the mortar bed surrounding
KERDI-LINE with a 1/4" x 3/16" (6 x
5 mm) V-notched trowel or the KERDI-
TROWEL, which features a 1/8" x 1/8"
(3 x 3 mm) square-notched design.
Embed KERDI in the bond coat with
the flat side of the trowel to ensure
full coverage and remove air pockets.
b. DITRA: Apply Schluter SET™,
Schluter ALL-SET™, Schluter FAST-
SET™ or unmodified thin-set mortar
to the mortar bed surrounding
KERDI-LINE with a 1/4" x 3/16" (6 x
5 mm) V-notched trowel or the DITRA-
TROWEL, which features an 11/64" x
11/64" (4.5 x 4.5 mm) square-notched
design. Solidly embed the matting into
the bond coat using a float, screed
trowel, or DITRA-ROLLER.
2. Apply Schluter SET™, Schluter ALL-
SET™, Schluter FAST-SET™ or
unmodified thin-set mortar to the
membrane surrounding KERDI-
LINE with a 1/4" x 3/16" (6 x
5 mm) V-notched trowel or the KERDI-
TROWEL, which features a 1/8" x 1/8"
(3 x 3 mm) square-notched design.
Embed the KERDI collar in the bond
coat to ensure full coverage and remove
air pockets.
Grate assembly
Grate
1. Apply Schluter SET™, Schluter
ALL-SET™, Schluter FAST-SET™
or unmodified thin-set mortar to the
underside of the grate frame and place
it in the channel body ensuring full
coverage and support of the frame.
Insert the foam spacers in the grate
frame to reinforce it during the remainder
of the installation.
Note: The tape on the grate frame does
not need to be removed. It is intended
to help keep setting material out of the
channel body during installation.
2. Slide the plastic height adjustment
spacers with threaded bolts onto the
tabs along the inside of the grate frame
to adjust the elevation of the frame. The
spacers may be adjusted simply by
turning the bolts by hand. The elevation
should be set such that the frame will be
flush with the surface of the tile covering.
3. Apply Schluter SET™, Schluter ALL-
SET™, Schluter FAST-SET™ or
unmodified thin-set mortar to the
substrate and install the tiles, ensuring
full coverage. Once the tile covering is
set and grouted, remove the spacers
from the grate frame and insert the
grate.
Note: Protect the visible surfaces of the
grate frame and grate from contact with
setting and grouting materials. Setting
and grouting materials must be removed
immediately.
KERDI-LINE-FC
1. Install KERDI-LINE channel bodies
end-to-end and overlap the KERDI
collars using Schluter SET™, Schluter
ALL-SET™, Schluter FAST-SET™ or
unmodified thin-set mortar to ensure a
waterproof connection. KERDI-LINE-FC
is subsequently installed in conjunction
with the KERDI-LINE grate assembly
and adjacent tiles.
Note: KERDI-LINE-FC may be used
with tiles that are 1/4" (6 mm) thick or
greater.
2. Apply a sufficient amount of thin-set
mortar to the substrate and/or the
back of KERDI-LINE-FC and press the
profile into the mortar until its surface
is flush with the adjacent tile and grate
assembly.
3. Leave a space of approximately 1/16" –
1/8" (1.5 – 3 mm).
4. Fill the joints completely with grout or
setting material.
Tileable Covering Support
Wall Installation
1. Peel protective foil off the cover strip and
adhere the strip to the bonding flange
adjacent to the wall(s). Position the strip
along the edge of the channel. The
cover strip hides and protects the KERDI
surface under the tile.
2. Insert the tile spacers into the channel
body. Install the surrounding tile on the
adjoining walls and mortar bed up to the
spacers using Schluter SET™, Schluter
ALL-SET™, Schluter FAST-SET™ or
unmodified thin-set mortar, ensuring full
coverage. Remove all excess setting
material.
3. Apply tile to the top of the covering
support using Schluter SET™, Schluter
ALL-SET™, Schluter FAST-SET™ or
unmodified thin-set mortar. The tile
is installed flush with the front side of
the covering support to provide the
drainage opening and overhanging the
back side of the covering support to
cover the bonding flange along the wall.
Measure and cut the tile such that an
approximate 1/16" (1 mm) gap is left at
the wall. When the ends of the channel
body are located adjacent to walls, the
tile is installed overhanging the end of
the plate to cover the bonding flange
along the walls. Measure and cut the tile
such that an approximate 1/16" (1 mm)
gap is left at the walls.
Note: When the mortar bed is tiled beyond
the ends of the channel, the tile on the ends
of the covering support can be cut to either
match the grout joints of the surrounding
floor covering or to provide a perimeter
drainage opening.
Intermediate Installation
1. When the ends of the channel body are
located adjacent to walls, peel protective
foil off the cover strip and adhere the
strip to the bonding flange adjacent to
the walls. Position the strip along the
edge of the channel. The cover strip
hides and protects the KERDI surface
under the tile. When the mortar bed will
be tiled beyond the ends of the channel,
the cover strip is not required.
2. Insert the tile spacers into the channel
body. Install the surrounding tile on the
adjoining walls (if applicable) and mortar
bed up to the spacers using Schluter
SET™, Schluter ALL-SET™, Schluter
FAST-SET™ or unmodified thin-set
mortar, ensuring full coverage. Remove
all excess setting material.
3. Apply tile to the top of the covering
support using thin-set mortar. The tile
is installed flush with the front and back
of the covering support to provide the
drainage openings. When the ends of
the channel body are located adjacent
to walls, the tile is installed overhanging
the end of the plate to cover the bonding
flange along the wall. Measure and cut
the tile such that an approximate 1/16"
(1 mm) gap is left at the wall.
Note: When the mortar bed is tiled beyond
the ends of the channel, the tile on the
ends of the covering support can be cut
to either match the grout joints of the
surrounding floor covering or to provide
perimeter drainage openings.
Note: For acid-resistant coverings, use an
epoxy adhesive to set and grout the tile.