Schluter®-KERDI-LINE

The Schluter®-KERDI-LINE is a low profile linear floor drain specifically designed for bonded waterproofing assemblies. KERDI-LINE can be installed adjacent to walls or at intermediate locations in showers, wet rooms, and other applications that require waterproofing and drainage.

  • Create barrier-free, open-concept spaces
  • Floors can be sloped on a single plane to KERDI-LINE, enabling the use of large-format tiles
  • Channel body is made of formed stainless steel and features a KERDI collar to create a secure waterproof connection
  • Two frame height options available to accommodate different tile covering thicknesses
  • Off-set and center outlets available
  • Accommodates all thicknesses of ceramic tiles and stone coverings
  • Available in lengths ranging from 20” (50 cm) to 72”(180 cm)
  • Grate assemblies sold separately and available in three designs: closed, perforated, and a frameless tileable grate
  • Can be used with the KERDI-LINE-FC to create a seamless look in applications where multiple drains are installed end-to-end
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The Schluter®-KERDI-LINE is a low profile linear floor drain specifically designed for bonded waterproofing assemblies. KERDI-LINE can be installed adjacent to walls or at intermediate locations in showers, wet rooms, and other applications that require waterproofing and drainage.

  • Create barrier-free, open-concept spaces
  • Floors can be sloped on a single plane to KERDI-LINE, enabling the use of large-format tiles
  • Channel body is made of formed stainless steel and features a KERDI collar to create a secure waterproof connection
  • Two frame height options available to accommodate different tile covering thicknesses
  • Off-set and center outlets available
  • Accommodates all thicknesses of ceramic tiles and stone coverings
  • Available in lengths ranging from 20” (50 cm) to 72”(180 cm)
  • Grate assemblies sold separately and available in three designs: closed, perforated, and a frameless tileable grate
  • Can be used with the KERDI-LINE-FC to create a seamless look in applications where multiple drains are installed end-to-end
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Schluter<sup class='regsign'>®</sup>-KERDI-LINE

Schluter®-KERDI-LINE

Low-profile linear floor drain
Schluter®-KERDI-LINE
Schluter®-KERDI-LINE
Schluter®-KERDI-LINE
Schluter®-KERDI-LINE
Schluter®-KERDI-LINE
Schluter®-KERDI-LINE
Schluter®-KERDI-LINE
Schluter®-KERDI-LINE
Schluter®-KERDI-LINE
Schluter®-KERDI-LINE
Schluter®-KERDI-LINE
Schluter®-KERDI-LINE
Schluter®-KERDI-LINE
Schluter®-KERDI-LINE
Schluter®-KERDI-LINE

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Schluter®-KERDI-LINE is a low profile linear floor drain specifically designed for bonded waterproofing assemblies. KERDI-LINE can be installed adjacent to walls or at intermediate locations. The floor can be sloped on a single plane to KERDI-LINE, which enables the use of largeformat tiles and creates interesting design opportunities.

KERDI-LINE consists of a formed stainless steel channel body and grate assembly or covering support to which tile is applied. The channel body features a standard 2" (50 mm) no-hub outlet and is attached to the pipe using an appropriate mechanical no-hub coupling. The simple connection to standard drain outlets makes KERDI-LINE suitable for new construction and renovation. KERDI-LINE is available with both center and off-set outlets. The offset outlet is located 8" (20.3 cm) from the edge of the channel body and provides flexibility when obstacles (e.g., floor joists) are encountered during installation. The grate assembly can be seamlessly adjusted to the thickness of the ceramic tile or stone covering from 1/8" to 1" (3 to 25 mm). The covering support is placed flush with the top of the channel body and can therefore accommodate any thickness tile covering.

KERDI-LINE includes a corresponding polystyrene foam channel support. The perimeter of the channel body consists of a bonding flange laminated with a collar made of KERDI. It ensures a simple and secure connection to the bonded waterproofing assembly, both in the floor area and on adjacent walls.

The grate assembly consists of a brushed stainless steel frame and two design grate options. Option A is a closed-design, brushed stainless steel grate. Option B is a brushed stainless grate with square perforations. Option B is also available with a locking mechanism (3/4" - 19 mm frame only) for applications where tamper resistance is desired or required (e.g., healthcare and education facilities, etc.).

The covering support D is a stainless steel plate with KERDI laminated on the surface to allow for bonding of ceramic or stone tile, which creates a virtually invisible drainage line. KERDI-LINE is available in channel lengths from 20" to 72" (50 to 180 cm) in 4" (10 cm) increments. Please note that the bonding flange extends approximately 1" (2.5 cm) beyond the channel on all sides.

The installation instructions below represent the use of Schluter(r)-KERDI-LINE in floor applications. Installation instructions for the use of KERDI-LINE in shower applications can be found in the Schluter®-Shower System Installation Handbook.

Preparation

1. Any leveling of the floor must be done prior to the installation of the channel body. For installation adjacent to the wall, the channel body must be aligned in accordance with the thickness of the wall covering. For intermediate installation, use the supplied filling strip with peel-and-stick adhesive layer to make the channel support symmetrical.

2. KERDI-LINE can be installed in conjunction with the provided channel support as described below or set in loose mortar. KERDI-LINE is connected to the waste line with the appropriate mechanical no-hub coupling in accordance with the coupling manufacturer’s instructions.

Channel body installation

Access to plumbing from below When there is access to the plumbing from below and the waste line can be connected after installing KERDI-LINE, the channel body may be set without making a connection to the waste line simultaneously.

1. Apply unmodified thin-set mortar to the substrate where the drain is to be placed with a notched trowel and solidly embed the channel support in the mortar.

2. Apply unmodified thin-set mortar to the top of the channel support with a notched trowel and press the channel body firmly into the mortar, ensuring full support of the bonding flange. Check to make sure the KERDI-LINE is level.

No access to plumbing from below

When there is no access to the plumbing from below, the channel body must be set and connected to the waste line simultaneously.

1. Begin the drain installation by dry fitting the components. Measure and cut a section of pipe to connect the coupling to the odor trap below the floor, using the channel support as a spacer.

2. Apply unmodified thin-set mortar to the top of the channel support with a notched trowel and press the channel support firmly onto the underside of the channel body. Attach the mechanical coupling to the drain outlet and the cut section of the pipe per the coupling manufacturer’s instructions.

3. Apply unmodified thin-set mortar to the substrate where the drain is to be placed with a notched trowel. Prepare the cut section of pipe and odor trap with cleaner, primer and ABS or PVC cement per the solvent cement manufacturer’s instructions.

4. Solidly embed the channel support and KERDI-LINE into the mortar on the floor and connect the cut section of pipe to the odor trap. Check to make sure the KERDI-LINE is level.

5. The screed is then placed flush with the top of the bonding flange of the KERDI-LINE. Slope the mortar bed using the bonding flange and mortar screeds as guides.

Note: KERDI-FIX or other adhesives that are compatible with EPS foam can be used to install the channel support and channel body as an alternative to thin-set mortar.

Apply a generous bead of KERDI-FIX to the top and bottom of the channel support. The use of KERDI-FIX limits the ability to level KERDI-LINE.

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.

Connection to waterproofing membranes

The KERDI or DITRA waterproofing membranes can be installed as soon as the mortar bed can be walked upon.

1. KERDI, DITRA or DITRA-XL is installed up to the outer edge of the KERDI-LINE bonding flange using unmodified thinset mortar. The thin-set mortar must be mixed to a fairly fluid consistency, but still able to hold a notch.

a. KERDI: Apply 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 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 unmodified thin-set mortar to the membrane surrounding KERDILINE 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 A and B

1. Apply 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. Insert the plastic height adjustment spacers with threaded bolts under the tabs along the inside of the grate frame to adjust the elevation of the frame such that the surface of the frame will be flush with the surface of the tile covering. The spacers may be adjusted simply by turning the bolts by hand.

3. Apply 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 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.

Grate D

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 unmodified thin-set mortar, ensuring full coverage. Remove all excess setting material.

3. Apply tile to the top of the covering support using 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 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.

KERDI-LINE requires no special maintenance and is resistant to mold and fungi. The grate may be removed to clean the drain housing and the drain pipes.

Clean the grates and profiles using common household cleaning agents. Stainless steel exposed to the environment or aggressive substances should be cleaned periodically using a mild household cleaner. Regular cleaning maintains the neat appearance of stainless steel and reduces the risk of corrosion. All cleaning agents must be free of hydrochloric acid, hydrofluoric acid, and chlorides. Stainless steel surfaces develop a sheen when treated with a chrome-polishing agent. Do not use abrasive or alkaline cleaning agents.

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