F 7.3.12 - 0312
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DS-034.0-0412
Installation may be made on a damp surface. Expansion joints shall
be provided through the tile work from all construction or
expansion joints in the substrate. Follow ANSI specification A108.01-
3.7: Requirements for Movement Joints: Preparations by Other
Trades” or TCNA detail EJ-171 “Movement joints-Vertical &
Horizontal”. Do not cover expansion joints with mortar.
Typically Linear Drains should run from sill plate to sill plate (the
width of the shower) against a wall (see ES-B415LD Bonded Corner
Placement). Alternatively they can also be placed in medial locations
(see ES-B415LD Unbonded Medial Placement) or at the shower
entrance. In all locations the waste line for standard size
LATICRETE
®
Hydro Ban
®
Linear Drains are in the center of the linear
drain. When installed against a wall the center of the waste line
should be located far enough away from the sill plate to
accommodate wall sheathing and finished tile surface. For 1/2" (12
mm) wall board and 3/8" (9 mm) tile the center of the waste line
should be located 2 1/4" (57 mm) out from the sill plate.
Mortar Bed—Installation over concrete
(see ES-B415LD Bonded
Corner Placement and ES-B415LD Unbonded Medial) For a Bonded
mortar bed over concrete installation, before placing mortar, apply a
slurry bond coat made from LATICRETE 254 Platinum or LATICRETE
4237 Latex Additive mixed with LATICRETE 211 Powder. While the
slurry bond coat is wet, spread LATICRETE 3701 Fortified Mortar Bed
and compact well. Bonded mortar beds over concrete shall be 3/4"(19
mm) minimum to 2"(50 mm) maximum. For an unbonded installation
over concrete (see ES-415LD Unbonded Medial) a cleavage
membrane as specified in ANSI A108.02-3.8 should be used in place
of the slurry bond coat. The LATICRETE 3701 Fortified Mortar Bed
should be reinforced with 2" x 2" (50 x 50 mm) reinforcing mesh.
Unbonded Mortar beds over concrete shall be 1-1/4"(32 mm) minimum
to 2"(50 mm) maximum. In both Bonded and Unbonded mortar Bed
installations place enough LATICRETE 3701 Fortified Mortar Bed
where the linear drain will be set to support the bottom and under the
flanges of the drain trough. Minimum height from the flange to the
substrate should be 1-1/2" (37 mm). Make the connection to the waste
line when the drain is set into place using a no hub connection (not
supplied), see installation instructions below. Next place a ribbon of
LATICRETE 3701 Fortified Mortar Bed along the opposite wall to
create a 1/4" (6 mm) per foot slope to the LATICRETE Linear Drain. Fill
the area between the drain and the walls with LATICRETE 3701
Fortified Mortar Bed; screed and compact well. Mortar beds in excess
of 2"(50 mm) thick shall be detailed by the architect per TCNA F112.
Mortar Bed – Installation over Exterior Glue Plywood ( EGP)
(see
ES-415LD EGP Bonded Corner Placementl and ES-415LD EGP
Unbonded Medial Placement)
For a bonded mortar bed over EGP installation, before placing
mortar, install a cleavage membrane as specified in ANSI A108.02-
3.8. Expanded metal lath (minimum 2.5 pounds (1.1 kg)/square yard
(0.8 square meters) and complying with ANSI A108.02 3.6) is then
nailed or stapled to the subfloor over the cleavage membrane.
Following the lath spread LATICRETE 3701 Fortified Mortar Bed and
compact well. Bonded mortar beds over EGP shall be 3/4"(19 mm)
minimum to 1 1/2"(38 mm) maximum. For an unbonded installation
over EGP (see ES-415LD EGP Unbonded Medial Placement) install
a cleavage membrane as specified in ANSI A108.02-3.8 and then
spread the LATICRETE 3701 Fortified Mortar Bed. In both bonded
and unbonded mortar bed installations place enough LATICRETE
3701 Fortified Mortar Bed where the linear drain will be set to support
the bottom and under the flanges of the drain trough. Minimum height
from the flange to the substrate should be 1-1/2" (38 mm). Make the
connection to the waste line when the drain is set into place using a
no hub connection (not supplied). Next place a ribbon of LATICRETE
3701 Fortified Mortar Bed along the opposite wall to create a 1/4" (6
mm) per foot slope to the LATICRETE Linear Drain. Fill the area
between the drain and the walls with LATICRETE 3701 Fortified
Mortar Bed; screed and compact well. Mortar beds in excess of 2"(50
mm) thick shall be detailed by the architect per TCNA F112.
Installation Instructions (Fig. 1)
1.
Connect outlet (D) to waste pipe (F) via 2"(50 mm) no hub
connection using a rubber coupling (E) (not provided). Note:
outlet section (D) is 3"(76 mm) long and can be modified for
height adjustment. Grate A has adjustable feet for finer
adjustment (Minimum tile height with thin-set is 3/8"(10 mm),
maximum tile height is 3/4"(19 mm)).
2.
Using a LATICRETE 3701 Fortified Mortar Bed set and level
channel (C)
3.
Spread LATICRETE 3701 Fortified Mortar Bed, slope 1/4" per
foot (19mm per m) away from drain in a single plane. Note: tile
height should finish 1/16"(1.5 mm) higher than grate height the
tile in the Tile in Drain Grate.
4.
When the mortar is dry install backer board per manufacturer’s
instructions. The backer board will sit on the drain flange and
mortar (see ES-B415LD Bonded Corner Placement or ES-
B415LD EGP Bonded Corner Placement).
5.
After the backer board has been installed waterproof the
installation using LATICRETE Hydro Ban per instructions in
DS663.0 and 663.5. The stainless steel from the linear drains
needs to be clean and free of any grease, dirt or fingerprints
prior to coating with Hydro Ban. The LATICRETE Hydro Ban
should cover the metal flange on the linear drain trough to the
top of the first radius and extend up the walls and over the entire
mortar bed. If the gap between the linear drain flange and the
wall board is larger than 1/8" (3 mm) it should be filled with a
LATICRETE Polymer Modified Thin-Set e.g. LATICRETE 254
Platinum) or alternatively use 6" (150 mm) wide LATICRETE
Waterproofing/Anti-Fracture Fabric imbedded into the
LATICRETE Hydro Ban around four sides of the linear drain
overlapping the flange and the LATICRETE 3701 Fortified
Mortar Bed. Lap LATICRETE Waterproofing/Anti-Fractrure
Fabric and LATICRETE Hydro Ban liquid up the wall when
adjacent to show¬er wall and over wall board. DO NOT
waterproof the inside walls and bottom of the linear drain
channels.
6.
Take measures to protect grate (A) prior to tiling. Keeping the
grate (A) in the channel (C), thin-set and tile on the waterproof
membrane. Ensure tile allows for clearance of grate (A)
removal. Tile finishes 1/16"(1.5 mm) higher than grate or the tile
in the Tile in Drain Grate.
7.
If the grate has adjustable feet then adjust grate (A) height with
adjustable feet (B) as needed.
8.
When installing the LATICRETE Hydro Ban Linear Tile Drain
Grate (A) will need to be primed with two coats of LATICRETE
Hydro Ban prior to thin-setting the tile into the top grate. The
stainless steel from the linear drains needs to be clean and free
of any grease, dirt or fingerprints prior to coating with Hydro
Ban.
9.
When the second coat of LATICRETE Hydro Ban is dry the
installation can be tiled using a LATICRETE polymer fortified
