Application and function

Schlüter-KERDI-BOARD-N are pre-fabricated installation components for creating niches and shelves for wall areas of all kinds, made from the multi-functional tile underlayment Schlüter-KERDI-BOARD. They can be covered directly with tiles or with suitable rendered/plaster covering materials.

The prefabricated Schlüter-KERDI-BOARD-NLT sets with LIPROTEC technology enable the installation of illuminated niches in wall areas.

The niches are available in various dimensions and with a choice of illumination options for tone and colour.

Within the niche, the supplied LED modules can be positioned at the front edge, in the centre or at the rear to work with where the tile falls or where the light is wanted. For this purpose, the LED modules are available with plug-and-play connections in varying lengths. Bluetooth controls as well as cables can be found in the LIPROTEC price list.

Matching Bluetooth controls are included in the scope of supply for the prefabricated Schlüter-KERDI-BOARD-NLT-BR sets.

Areas of application and installation

Schlüter-KERDI-BOARD-N

Installation in Schlüter-KERDI-BOARD:

1. After positioning and precise marking of the outer niche dimensions, cut the corresponding opening in the wall covering.
2. Attach the inserted niche with the appropriate installation screws, depending on the material of the substrate. The maximum spacing of screws is 250 mm. Use the Schlüter-KERDI-BOARD-ZT washers. Screws must be set into the joints of the abutting joints. For additional fixing, the adhesive Schlüter-KERDI-FIX can be applied on the perimeter edge of the niche to abut the adjoining boards.
3. If the material is installed in a wetroom, the joints around the outer edge must be covered using Schlüter-KERDI-COLL-L and the supplied KERDI waterproofing collar.

Installation in plasterboard or other panelling:

1. After positioning and precise marking of the outer niche dimensions, cut the corresponding opening in the wall covering.
2. Attach the inserted niche with the appropriate installation screws, depending on the material of the substructure. The maximum spacing of screws is 250 mm. Set the screws through the niche flanges (spacing approx. 6 mm from the outer edge). For additional fixing, the adhesive Schlüter-KERDI-FIX can be applied on the perimeter edge of the niche to abut the adjoining boards.
3. Wall areas located in high-moisture areas must be waterproofed with Schlüter- KERDI. Adhere the supplied KERDI waterproofing collar on the flanges of the niche with Schlüter-KERDI-COLL-L. A suitable tile adhesive can be used for the remainder of the wall area (see product data sheet 8.1 for notes on installing Schlüter-KERDI). Then cut the KERDI membrane in the area of the niche insert.

Important:

The following installation notes must be observed when using niches with additional adjustable shelves:

Start by marking the desired position along the lower edge of the adjustable shelf.

Fully embed the tiles in the front and lateral areas of the niche with tile adhesive. To install the adjustable shelf, apply tile adhesive on the sides and rear of the shelf and fit them into the niche so they are supported by the previously installed tiles.

Recommendation: For installations in wetrooms, install the adjustable shelf with a slight slope toward the front. As an alternative, you can install the tiles at a slight slope. This ensures that no water can accumulate in the niche during use.

KERDI-BOARD-NLT:

1. Install the niche as described above. Prior to inserting the niche, connect the plug-and-play cable (lead-out to lead-in)
2. Please refer to the corresponding operating instructions for installing the cable connections, the power supply and the control (QR-CODE as an online download, see below).
3. The cap of the pass-through socket can be easily split at a designated point to position the cable as required.
4. Place the cap or the parts of the cap into the pass-through socket so that the cable can be connected to the receptacle profile.
5. Adhere the self-adhesive KERDI waterproofing strip to effectively seal the opening around the lead-out cable on both sides. Cut a small opening in the self-adhesive KERDI waterproofing membrane for the lead out cables; this prevents the adhesive from getting into the socket behind.
6. Apply tile adhesive with a notched trowel.
7. Lead the cable through the cable opening of the receptacle profile.
8. Press the trapezoid-perforated anchoring leg of the profile into the adhesive and align it.
9. Firmly press the adjoining tiles into place and align them flush with the upper profile edge. All tiles in the profile area must be solidly bedded.
10. Leave a joint of approximately 1.5 mm between the receptacle profile and the tile and completely fill the space with grout.
11. Make sure the adhesive does not exceed 12 mm when tiling the lateral walls.
12. The RGB+W LED tube can be cut to size depending on the opening of the tiled niche.
13. Plug the LED tube into the lead out cable and carefully press it into the receptacle profile.

Note: Schlüter-LIPROTEC modules require no special maintenance or care. Do not use abrasive cleaning agents on the sensitive surfaces. Applying lacquer can repair anodised layers. All cleaning agents must be free of hydrochloric and hydrofluoric acid and petroleum (component of silicone removers).

Material

Schlüter-KERDI-BOARD-N/-NLT is a panel made of extruded rigid XPS foam with a thickness of 12.5 mm, which is laminated with a special, cement-free reinforcement material and a fleece fabric on both sides for effective anchoring of thin-bed tile adhesives or rendered covering materials. The upper face of the board is imprinted with 10 x 10 mm gridlines.

Material properties and areas of application

Schlüter-KERDI-BOARD-N/-NLT is waterproof and resistant to any chemical stresses that typically occur in conjunction with tiled coverings. Where required, a certified bonded waterproofing assembly can be created with Schlüter-KERDI or -KERDI-BOARD.

KERDI-BOARD-N/-NLT is completely level, does not warp, and is not susceptible to moisture. The material is age-resistant and highly durable.

KERDI-BOARD-N/-NLT is ideal for a wide variety of applications.

Substrates must be checked for sufficient stability and other project-related requirements.

In certain cases, the suitability of the Schlüter-LIPROTEC modules must be verified, based on the anticipated chemical or mechanical stresses. The information provided below is intended as a general guideline.

Anodised aluminium: The aluminium features an anodised finish that retains a uniform appearance during normal use.

Aluminium is sensitive to alkaline media.

Cementitious materials, in conjunction with moisture, become alkaline, which may result in corrosion depending on the concentration and length of exposure (aluminium hydroxide formation).

For this reason, remove adhesive and grout immediately from all visible areas and do not cover freshly installed coverings with foil.

Waterproofing with Schlüter-KERDI-BOARD-N

In accordance with the German waterproofing standard DIN 18534, Schlüter-KERDI-BOARD-N can be used in water exposure classes W0-I bis W3-I*. Furthermore, Schlüter-KERDI-BOARD-N features the national technical approval (abP) required in Germany.

Moisture load class according to ZDB: 0 to B0, as well as A and C.

Schlüter-KERDI-BOARD-N features European Technical Approval (ETA) pursuant to ETAG 022 (watertight covering kits) and bears a CE mark.

(* With abP and/or based on ETA according to ETAG 022.)

System-certified tile adhesives must be used in areas that require CE-compliance or assemblies according to abP (certificate of technical approval).

Please contact our Technical Department for further information on the use and installation of system-certified tile adhesives or to request the corresponding test certificates and approvals (see also product data sheet 12.1 Schlüter-KERDI-BOARD).

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