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Schluter Systems
Schluter KERDI Membrane

Schluter Systems
PROFILE OF INNOVATION

Schluter®-Systems develops products specifically for the tile industry to ensure that installations maintain integrity and durability. The Schluter product line includes tile trims, uncoupling membranes, floor heating systems, waterproof building panels, and shower systems.

For more detailed information on any of their products it is highly recommended to go to their Web Site to see all of what they offer and they have plenty of instructions and information.

Shower Base Installation with Schluter®-KERDI-DRAIN

Preparation

Locate and cut a hole in the substrate for the drain outlet and coupling to the waste line using the template provided. Limit the diameter of the hole to 5" maximum to ensure proper support for the tile assembly. Note: Fill in box-outs in concrete floors with dry-pack mortar or concrete. A pipe coupling or similar can be used as a form around the waste line.

Schluter®-KERDI-DRAIN with Schluter®-KERDI-SHOWER-ST prefabricated shower tray

The substrate must be clean, even, and load bearing. Any leveling must be done prior to shower tray installation. If necessary, cut the tray to size prior to application; ideally, the tray is cut equally on all sides to ensure a consistent perimeter height. The base can also be extended beyond the tray using dry-pack mortar.

Plumbing Access: If there is access to the plumbing from below and the waste line can be connected after installing KERDI-DRAIN, the tray can be installed prior to the drain.
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Schluter Systems Apply unmodified thin-set mortar to the substrate using a 1/4" x 3/8" square- or U-notched trowel. Schluter Systems Place the KERDI-SHOWER-ST tray and solidly embed in the mortar. Check the underside of the tray to ensure full coverage and support are achieved. Schluter Systems Completely fill the step in the shower tray with thin-set mortar. Press KERDI-DRAIN firmly into the mortar to ensure full support of the bonding flange.
No Plumbing Access: When there is no access to the plumbing from below, KERDI-DRAIN is installed to the appropriate height and connected to the waste line prior to the installation of the shower tray.
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Schluter Systems Begin by dry-fitting the components. Measure and cut a section of pipe to connect KERDI-DRAIN to the odor trap using the detachable center section of the tray orfoam spacers included with the drain as a spacer. Prepare the odor trap, pipe, and KERDI-DRAIN with cleaner, primer and ABS or PVC cement per the solvent cement manufacturer’s instructions and connect. Schluter Systems Apply thin-set mortar to the substrate and to the top and bottom of the detached center section of the KERDI-SHOWER-ST tray. Slide the center section into place below the drain to ensure solid and uniform support of the bonding flange. Schluter Systems Apply unmodified thin-set mortar to the substrate using a 1/4" x 3/8" square- or U-notched trowel. Place the KERDI-SHOWER-ST tray and solidly embed in the mortar. Check the underside of the tray to ensure full coverage and support are achieved.
Clamping Ring Drain Installed: If a clamping ring drain is installed, replace with KERDI-DRAIN or convert using the KERDI-DRAIN Adapter Kit.
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Schluter Systems Remove the clamping ring from the installed drain and save the bolts. Align the bolt pattern of the clamping ring with the adaptor ring and punch the matching inserts through the adaptor ring. Schluter Systems Apply a 1/4" - 3/8" bead of KERDI-FIX to the installed drain flange. Place the adaptor ring on the installed drain, re-insert the bolts, and tighten evenly. Make bolts finger-tight plus 1/4 turn; over tightening may warp the ring and result in leaks. Schluter Systems Slide the adaptor flange into the adaptor ring and ensure full support underneath with mortar or the detachable center section of the foam tray. Depending on the installed drain elevation, it may be necessary to install a polystyrene foam panel, tile backerboard, etc. prior to the tray. Install the tray as per the instructions above.
Note: Schluter®-Systems recommends a leak test be performed on the connection between the drain and the waste line prior to continuing with the remainder of the installation whenever possible.


Schluter®-KERDI-DRAIN with mortar bed

Plumbing Access: If there is access to the plumbing from below and the waste line can be connected after installing KERDI-DRAIN, the drain can be installed in conjunction with the mortar bed.
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Schluter Systems Place a ring of loose mortar up to the inlet hole in the floor and firmly press the drain into the mortar. The bonding flange must be fully supported to prevent damage to the tile assembly (e.g., cracked grout around drain). When installing KERDI-DRAIN over wood substrates, the minimum thickness of mortar required at the perimeter of the bonding flange is 1". Schluter Systems The screed is then placed flush with the top of the bonding flange of the KERDI-DRAIN. Slope the mortar bed at 1/4" per 12" using the bonding flange and a perimeter screed as guides.
No Plumbing Access: When there is no access to the plumbing from below, KERDI-DRAIN is installed to the appropriate height and connected to the waste line prior to the installation of the shower base.
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Schluter Systems Measure and cut a section of pipe to connect KERDI-DRAIN to the odor trap using the foam spacers included with the drain as a spacer. When installing KERDI-DRAIN over wood substrates, the minimum thickness of mortar required at the perimeter of the bonding flange is 1". Prepare the odor trap, cut section of pipe, and KERDI-DRAIN with cleaner, primer and ABS or PVC cement per the solvent cement manufacturer’s instructions and connect. Schluter Systems Pack loose mortar under the drain up to the inlet hole to ensure solid and uniform support of the bonding flange. The mortar bed is then placed according to the instructions above.
Clamping Ring Drain Installed: If a clamping ring drain is installed, replace with KERDI-DRAIN or convert using the KERDI-DRAIN Adapter Kit.
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Schluter Systems Remove the clamping ring from the installed drain and save the bolts. Align the bolt pattern of the clamping ring with the adaptor ring and punch the matching inserts through the adaptor ring. Schluter Systems Apply a 1/4" - 3/8" bead of KERDI-FIX to the installed drain flange. Place the adaptor ring on the installed drain, re-insert the bolts, and tighten evenly. Make bolts finger-tight plus 1/4 turn; over tightening may warp the ring and result in leaks. Schluter Systems Slide the adaptor flange into the adaptor ring and ensure full support underneath with mortar or the detachable center section of the foam tray. Depending on the installed drain elevation, it may be necessary to install a polystyrene foam panel, tile backerboard, etc. prior to the tray. Install the tray as per the instructions above.
Note: Schluter®-Systems recommends a leak test be performed on the connection between the drain and the waste line prior to continuing with the remainder of the installation whenever possible.


Waterproofing the shower base

The KERDI waterproofing membrane can be installed over the KERDI-SHOWER-ST tray immediately or over a mortar bed as soon as the mortar bed can be walked upon using unmodified thin-set mortar. The thin-set mortar must be mixed to a fairly fluid consistency, but still able to hold a notch.
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Schluter Systems Apply unmodified thin-set mortar to the bonding flange and surrounding shower base with a 1/4" x 3/16" V-notched trowel or the KERDI-TROWEL. Note: When using the stainless steel drain, the membrane is adhered to the bonding flange with KERDI-FIX; clean the bonding flange prior to KERDI-FIX application. Schluter Systems Embed KERDI membrane in the bond coat and work the membrane onto the KERDI-DRAIN bonding flange and shower base to ensure full coverage and remove air pockets. The membrane is carried to the step in the bonding flange (template provided) and to the edges of the shower base. Schluter Systems Repeat the process to install the membrane over the curb or ramp. Seams in the membrane are constructed by overlapping the edges by 2" or by abutting adjacent sheets and installing KERDI-BAND centered over the joint. Install KERDI-KERECK-FI at all inside and outside corners.
Grate Assembly
Grate:
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Schluter Systems Place the height adjustment collar inside the lateral adjustment ring and snap the grate into place. Note: For the 6" grates, the height adjustment collar is integrated with the grate. For the residential adaptor kit, there is no lateral adjustment ring. Schluter Systems Fill the step in the bonding flange with thin-set mortar and back-butter the underside of the grate to ensure full support. Place the assembly into the mortar and install the surrounding tiles, ensuring full coverage. Schluter Systems Position the grate to match the joint pattern of the tile covering and press flush with the tile surface. Remove all excess setting material immediately. Note: Protect the visible surface of the grate from contact with setting and grouting materials. In particular, anodized aluminum is sensitive to alkaline materials.
Tileable Covering Support:
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Schluter Systems Fill the step in the bonding flange with thin-set mortar. Place the tile spacer in the lateral adjustment ring and press the assembly into the mortar. Install tiles up to the tile spacer, ensuring full coverage. Embed the tiles on the integrated tabs on the lateral adjustment ring, which provide for a flush transition to the covering support. Position the tile spacer to match the joint pattern of the tile covering. The tiles may be held back from the spacer as required to match the layout. Remove all excess setting material. Schluter Systems Apply tile to the top of the covering support using unmodified thin-set mortar. The tile may overhang the covering support provided that a drainage opening of at least 3/16" is provided. Schluter Systems After the tile is set and grouted, remove the tile spacer and insert the tiled covering support into the lateral adjustment ring.

Schluter®-KERDI-DRAIN Menu


Schluter Systems

Schluter Systems
Tileable Drain


Schluter Systems

Includes
Description
Schluter Systems  KERDI-DRAIN
Drain, with integrated bonding flange and grate assembly
Schluter Systems  KERDI-KERECK-F
Preformed waterproofing corners
4-inside, 2-outside
Schluter Systems  KERDI-SEAL-PS
Pipe seal - ¾"
Schluter Systems  KERDI-SEAL-MV
Mixing valve seal

Installation

Schluter Systems

Schluter® KERDI-DRAIN is a floor drain specifically designed to allow connections to Schluter®-KERDI or other load-bearing, bonded waterproof membranes. The membrane is adhered to the large integrated bonding flange to form a waterproof connection at the top of the drain assembly. KERDI-DRAIN consists of a drain casing and fully adjustable grate assembly or covering support to which tile is applied. The grate assembly accommodates a wide range of tile thicknesses and allows lateral and tilt adjustment as well. The covering support is placed flush with the top of the bonding flange and can therefore accommodate any thickness tile covering.

We stock the 4" Square in a Tileable Covering Support, Polished Stainless Steel, Brushed Nickel and Oil Rubbed Bronze finishes all with a 2" drain outlet.

#KD2/PVC/ECS
Tileable Grate

  Qty:

$114.12


#KD2/PVC/E
Stainless Grate

  Qty:

$114.12

#KD2/PVC/ATG
Brushed Nickel Grate

  Qty:

$133.16


#KD2/PVC/EOB
Oil Rubbed Bronze Grate

  Qty:

$133.16

KERDI-DRAIN Adaptor Kits
Also Available

Useful in renovations where the clamping ring drains are difficult to replace with the standard KERDI-DRAIN (e.g., when they are set in concrete slabs)
Schluter Systems
Schluter Systems
2" Drain Outlet
A - 11-13/16"   B - 4-17/32"
C - 2-45/64"   D - 2-3/8"
E - 3-15/16"   F - 1-39/64"
G - 7/8"
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