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Schlüter®-KERDI-BOARD

Areas of Application and Installation

Installation: Fully embedded Schlüter®-KERDI-BOARD

  1. The adhesive must bond with the substrate and mechanically set in the anchoring fleece of Schlüter®-KERDI-BOARD. Standard dry set adhesives as defined by EN 12004 are suitable for most substrates; otherwise select another suitable adhesive, carefully checking for any incompatibilities of materials.
  2. The thin-bed adhesive is applied either over the substrate or onto Schlüter®-KERDI-BOARD with a notched trowel. 
  3. The anchoring fleece of the Schlüter®-KERDI-BOARD panels are fully embedded in the adhesive bed. Observe the curing times of all materials.
  4. Tightly abut the individual panels and align them appropriately.
  5. The tiles can be installed immediately after adhering the Schlüter®-KERDI-BOARD panels, using a dry setting adhesive that meets the requirements of the covering. Choose a notched trowel to match the tile format. The curing times of the thin bed adhesive must be observed.


Note:
See section “Waterproofing" on the use of Schlüter®-KERDI-BOARD in bonded waterproofing assemblies.

Attachment of Schlüter®-KERDI-BOARD with dabs of adhesive

  1. Place dabs of adhesive on the Schlüter®-KERDI-BOARD panel at intervals of approx. 30 cm and ensure that all board edges are fully supported with adhesive. Depending on the required thickness of the layer, use a a suitable bonding adhesive.
  2. Set the panels at the wall, firmly press them in place and align them with the use of a spirit level.
  3. The tiles can be installed immediately after adhering the Schlüter®-KERDI-BOARD panel, using a thin-bed adhesive that meets the requirements of the covering. Choose a notched trowel to match the tile format. The curing times of the thin-bed adhesive must be observed.


Note:
If no lasting adhesion can be created between the dabs of adhesive and the substrate, additional mechanical attachment with the corresponding wall anchors or screws is required.

Note: See section “Waterproofing" on the use of Schlüter®-KERDI-BOARD in bonded waterproofing assemblies. 


Use of Schlüter®-KERDI-BOARD on stud frame structures

  1. Schlüter®-KERDI-BOARD can be installed and screw-mounted vertically or horizontally on professionally constructed stud frames. If using the system fixings, the panels may be tightly abutted when fixing the screws. The selected screws should be of sufficient length to reach a depth of at least 20 mm in wooden studs and at least 10 mm in metal studs. The distance between the screws should not exceed 25 cm. Depending on the project requirements, the panel thickness for installation on stud frame structures (centre line 62.5 cm) should be at least 19 mm.
  2. In the case of vertical installation, abut the individual panels over the centre of the studs. In the case of horizontal installation, seal all vertical joints that are not located over a stud with tile adhesive, Schlüter®-KERDI-FIX or the double sided adhesive tape Schlüter®-KERDI-BOARD-ZDK. Such abutting joints should be offset.


Note: See section “Waterproofing" on the use of Schlüter®-KERDI-BOARD in bonded waterproofing assemblies.


Use of Schlüter®-KERDI-BOARD in partition wall systems

  1. Schlüter®-KERDI-BOARD is adhered to the permanent wall with the abutting edge to make sure that the tile covering to be installed on the permanent wall includes the Schlüter®-KERDI-BOARD partition wall. If possible, the partition wall should be stabilised between Schlüter®-KERDI-BOARD panels adhered to the permanent wall. As an alternative, you can also screwmount a matching angle or U shaped profile on the permanent wall for the attachment of the partition wall.
  2. Open ended partition walls can be further stabilised with the U shaped components of the attachment hardware. If you plan to screw fittings to the U-shaped profile, adhere the matching flat plastic profile Schlüter®- KERDI-BOARD-ZFP to the back of the U-shaped profile to improve the fixing of the screws. U shaped profiles may also be used for connections in the wall and ceiling area.
  3. All vertical and horizontal joints of Schlüter®-KERDI-BOARD panels must be sealed with thin-bed adhesive or Schlüter®-KERDI-FIX, if applicable. In the case of partition walls, a matching angle or U shaped profile may be included in one or several abutting joints for improved stability.
  4. Depending on the individual construction site requirements, such partition walls are considered lightweight walls without structural analysis. As a rule, use the 50 mm panels for this kind of structure. Panels from a thickness of 19 mm may be used for building shelving. Again, this must be evaluated in accordance with the building specifications.


Note: See section “Waterproofing" on the use of Schlüter®-KERDI-BOARD in bonded waterproofing assemblies.


Panel coverings made of Schlüter®-KERDI-BOARD

  1. The angle and U shaped components of the Schlüter®-KERDI-BOARD attachment hardware allow for quick and easy panelling of piping and electrical installations.
  2. The components with V-shaped grooves are supplied flat and can easily be cut to the required size. As an alternative, you can also cut a single U-shaped component into two angled elements with shorter legs.
  3. The components are folded for installation, with a prepared adhesive strip holding them together in a V-shaped groove.
  4. Adhere the edges of Schlüter®-KERDI-BOARD U-shaped or angled components to the existing walls, using either thin-bed adhesive or Schlüter®-KERDI-FIX. If required, mount the angle profile Schlüter®-KERDI-BOARD-ZW on the wall area first to attach the panel.


Note: See section “Waterproofing" on the use of Schlüter®-KERDI-BOARD in bonded waterproofing assemblies.


Curved wall areas made of Schlüter®-KERDI-BOARD

  1. The grooved version of the Schlüter®-KERDI-BOARD panel is designed for creating rounded and curved structures.
  2. First, cut the grooved panels to the required size. If a larger expanse of panels is required, several panels can be connected along the edges with double sided adhesive tape.
  3. If the grooved surface points toward the inside, it is recommended to fill the grooves with tile adhesive prior to installation.
  4. Exterior grooves should be filled with thin-bed adhesive prior to or during the tile installation.


Note: See section “Waterproofing" on the use of Schlüter®-KERDI-BOARD in bonded waterproofing assemblies.


Use of Schlüter®-KERDI-BOARD in floor areas

  1. Schlüter®-KERDI-BOARD is equally suitable for creating level substrates in floor renovation projects, for example in bathroom installations. To install Schlüter®-KERDI-BOARD in 5, 9, 12.5 and 19 mm thicknesses the substrate must be level, ready to bear weight and free of all substances that may weaken the bond. Any levelling must be completed prior to installing Schlüter®-KERDI-BOARD.
  2. The adhesive must bond well with the substrate and mechanically set in the anchoring fleece of Schlüter®-KERDI-BOARD. Standard dry set adhesive as defined by EN 12004 are suitable for most substrates. Otherwise, select another suitable adhesive, carefully checking for any incompatibilities of materials.
  3. Apply thin-bed adhesive over the substrate with a notched trowel and fully embed the anchoring fleece of the Schlüter®-KERDI-BOARD panels in the adhesive bed. Tightly abut the individual panels and align them appropriately. Observe the curing times of all materials.
  4. Provided the substrate is sufficiently load-bearing, Schlüter®-KERDI-BOARD panels from a thickness of 28 mm can be installed with spots of thin-bed adhesive or other suitable adhesive, followed by height alignment. To ensure proper weight bearing of the covering, place the dabs of adhesive closely together. Apply thin-bed adhesive to the joints at the edges of the panels and ensure they are supported by dabs of adhesive from below.
  5. Use an edge strip to eliminate the build-up of tensions in Schlüter®-KERDI-BOARD and the tile covering in edge areas.
  6. The tiles (minimum size: 5 x 5 cm) can be installed immediately after fully embedding the Schlüter®-KERDI-BOARD panels, using a dry setting adhesive that meets the requirements of the covering. If using dabs of adhesive, allow them to cure first for full weight bearing of the substrate. Choose a notched trowel to match the tile format. The curing times of the thin-bed adhesive must be observed.
  7. Observe the applicable technical standards for movement joints used in field definition and edge and connection joints.


Note: See section “Waterproofing" on the use of Schlüter®-KERDI-BOARD in bonded waterproofing assemblies.


Schlüter®-KERDI-BOARD-N

Schlüter®-KERDI-BOARD-N are prefabricated niches for the easy installation of visually appealing shelves that are flush with the wall.

The niche is installed between two studs in a stud wall structure. An additional substructure must be set up to support the niche flange in case of larger stud intervals. If the niche is installed in high-moisture areas, tiles on the shelf surfaces must be installed with a slope to prevent water from pooling in the final assembly.

Installation in KERDI-BOARD:

  1. Position the niche after precisely marking its outside dimensions and make a corresponding cut in the wall panelling.
  2. Attach the inserted niche with wood screws or quick installation screws, depending on the material of the substructure. The maximum distance between screws is 250 mm. If using wall panels made of Schlüter®-KERDI-BOARD, insert the washers Schlüter®-KERDI-BOARD-ZT. In this case, place the screws in the joints near the abutting seams. For additional attachment, apply the installation adhesive Schlüter®-KERDI-FIX on the inside of the niche flange. 
  3. If the structure is installed in a highmoisture area, the abutting seams around the outer flange must be covered with the supplied KERDI waterproofing collar, using the sealing adhesive Schlüter®-KERDI-COLL-L.


Note: See section “Waterproofing” on the use of Schlüter®-KERDI-BOARD in bonded waterproofing assemblies!


Installation in drywall:

  1. Position the niche after precisely marking its outside dimensions and make a corresponding cut in the wall panelling. 
  2. Attach the inserted niche with wood screws or quick installation screws, depending on the material of the substructure. The maximum distance between screws is 250 mm. If panelling materials such as drywall panels are used, screws must be inserted through the niche flange (distance of approx. 6 mm from the outer edge). For additional attachment, apply the installation adhesive Schlüter®-KERDI-FIX on the inside of the niche flange.
  3. Wall surfaces made from materials such as drywall that are located in a highmoisture area must be waterproofed with Schlüter®-KERDI. Adhere the supplied KERDI waterproofing collar on the niche flanges with the sealing adhesive Schlüter®-KERDI-COLL-L. A dry-set adhesive can be used for the remainder of the wall area (see product data sheet 8.1 for installation of Schlüter®-KERDI). Then cut out the KERDI membrane in the area of the niche cavity.


Important:
The following installation notes must be observed for using the niches with additional shelves:

As a first step, mark the desired position along the bottom of the shelf. Completely embed the tiles on the frontal and lateral areas of the niche in thin-set adhesive, working from the top down. When installing the shelf, apply adhesive on the sides and the back of the shelf and insert it into the niche in such a way that it is supported by the previously installed tiles.

Note: If the shelf is installed in a highmoisture area, elevate it slightly at the rear to create a slope. As an alternative, the tiles can also be installed with a slope offset in the adhesive to prevent water from pooling in the final assembly.


Waterproofing with Schlüter®-KERDI-BOARD
Schlüter®-KERDI-BOARD features the national technical approval (abP) required in Germany and bears the Ü mark. Moisture exposure class according to abP: 0 - B0 as well as A and C. Schlüter®-KERDI-BOARD has the required European Technical Assessment (ETA) as specified in ETAG 022 (bonded waterproofing assemblies) and bears CE marking. Moisture exposure class according to ETAG 022: A and C.

Exclusively use system-approved thin-bed adhesives for areas that require CE conformity or compliance with the general certificate of national technical approval (abP). Please contact us at the address shown in this data sheet for further information about suitable thin-bed adhesive and the corresponding test certificates. If constructing designs of load category B, “Containers" (e.g. swimming pools), we recommend the use of our waterproofing membrane Schlüter®-KERDI (see product data sheet 8.1 Schlüter®- KERDI).

For this purpose, the seams and corners of Schlüter®-KERDI-BOARD in the area must be fully covered with the seaming tape Schlüter®-KERDI-KEBA (minimum width 12.5 cm), embedding the sealing adhesive Schlüter®-KERDI-COLL-L. The seaming tapes should have at least 5 cm of overlap. Schlüter®-KERDI-KEBA band is also suitable for creating functional connections to fixed structural elements such as door openings or windows of metal, wood or plastic. For this purpose, apply Schlüter®-KERDI-FIX on the adhesive area of the fixed structures and Schlüter®-KERDI-COLL-L on the adhesive area of Schlüter®-KERDI-BOARD and cover the entire joint area with sealing band. The suitability of Schlüter®-KERDI-FIX for the built-in components must be verified in each individual case. The feasibility of the connections must be evaluated on the basis of individual construction requirements. Implement all connections with great care. Separate Schlüter®-KERDI-BOARD above the existing movement joints and structural joints and cover the abutting joints with Schlüter®-KERDI-FLEX. Schlüter®-KERDIFLEX is also recommended for flexible edges.

Plaster and trowel-applied coatings over Schlüter®-KERDI-BOARD
These materials may adjoin tiled coverings (e.g., tiled skirtings) or be applied to entire walls in other areas. Abutting joints within the area, at the internal and external corners, and at exposed edges must be reinforced and covered with a trowel-applied material. The self-adhesive joint reinforcement tape Schlüter®-KERDI-BOARD-ZSA should be used for this purpose.


Contact Schlüter-Systems Ltd

Units 3-5 Bardon 22,
Beveridge Lane, Coalville,
Leicestershire, LE67 1TE
Phone: +44 (0) 1530 813396

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Further information

on our products and specifications can be found here:

Legend "Products"

We use the following symbols and abbreviations to illustrate our price charts.

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= new products

= radius perforation available   

 

Dimensions:
H = height
L = length
B = width


Packaging:
PL = euro pallet 
KV = case packaging 
BV = bundle (there is a 10 item bundle packaging for all the profile types)
P = box packaging 
R = roll
St. = unit