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Application

A ceramic facade system for panel applications.

Description

KeraTwin® is a facade system with a wide variety of colours. In addition to the “SpectraView” range of colours, comprising nine harmoniously co-ordinated colour families and contrasting colours, the “Natura unglazed”, “Design unglazed” and “Design glazed” colour systems are also available.


On request, the panels are also supplied with profiles which, due to their three-dimensional texture, can make large facades appear less monotonous and lend an entire building a distinctive character. The joints are realised in such a way that the construction is optimally protected against driving rain. With their relatively low weight of 32 kg/m², the panels are easy to transport and install.


The KeraTwin® system variants essentially differ in terms of their fastenings which depend on the requirements of the specific project. The vertical K20 system rail, for example, offers freedom of design and a wide range of accessories. As the panels are hung on the system rail, no additional tools are required for installation.


Even faster and more efficient laying is possible using the K20 T-profile which requires fewer individual components in the substructure. The vertical K20 Omega profile is specially designed for efficient installation on difficult bases, e.g. walls with post and beam construction. The K20 clamp system permits mounting of the panels in a horizontal and vertical direction and on ceilings.


AGROB BUCHTAL has developed standard technical details, which can be adapted to the project-specific requirements as needed – also as special production. This includes, for example, terminations at windows, doors and the corresponding embrasures, both horizontal and vertical. In addition, mitre-cut panels for corner solutions and corner profiles (rectangular or rounded) facilitate the design of facade details.


Features and benefits:

  • Offers additional options in terms of surface finish. In addition to the glossy, silky-matt or unglazed surfaces.
  • Glazed tiles available in any RAL colour.
  • System variants essentially differ in terms of their fastenings which depend on the requirements of the specific project. 
  • Construction is optimally protected against driving rain.
  • Easy to transport and install due to relatively low weight.
  • Available with Hytect coating (self-washing effect).
  • Lightweight ceramic system which saves both carbon and cost vs other ceramic systems.


BIM DATA for K20 can be found here - Design + Plan - Service - Agrob Buchtal (agrob-buchtal.de)

General information

Color

Cream

Yellow

Red

Pink

Grey

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Finish

Smooth

Brushed

Grooved

Glazed

Anti-graffiti

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Material

Ceramic

Shape

Rectangle

Square

Trapezium

Other

Length

900 mm

1200 mm

1500 mm

1800 mm

Bespoke

Width

20 mm

Height

150 mm

175 mm

200 mm

225 mm

250 mm

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Warranty description

30 year

Guidance for specification option:

Material warranty.

Uniclass

Ss_25_20_70_25 Drained and back-ventilated rainscreen cladding systemsPrimary

CAWS

F30/290 Proprietary special fixings

F30/260 Angle supports

F30/265 Support system

Specification data - Drained and back-ventilated rainscreen cladding systems

Secondary support structure

Fastening by means of vertical system rail K20.

Guidance for specification option:

  •  The profiles of the basic substructure have to be mounted perpendicularly and in a flush way. (T-profile width ≥ 80 mm; recommended width ≥ 100 mm).
  • The system rails K20 (Art. no. 620, 625, 630) have to be precisely aligned horizontally and fastened at the provided holes by means of screws (Art. no. 659-01) or rivets (Art. no. 658).
  • The distance of the system rails K20 in horizontal direction must correspond to the longitudinal grid of the panels.
  •  The length of the vertical profiles must be divisible by the height of the panel format and should not exceed the height of a storey of the building.
  • A profile butt joint behind a panel is not allowed.
  • In case of open vertical joints, one joint spacer per panel (Art. no. 645) is inserted in a centric extrusion hole of the panel.
  • In case of closed vertical joints, the joint profile (Art. no. 640 in case of single-span girder; plug-in joint profile, Art. no. 647, in case of single-span girder with jibs) must be used.

Fastening by means of vertical T-profile K20.

Guidance for specification option:

  • Mount the T-profiles K20 (Art. no. 695) perpendicularly and in a flush way.
  •  Exactly align the T-profiles K20 horizontally.
  • Open vertical joints with T-profile K20 (Art. no. 695Q) with spacer (Art. no. 645).
  •  In the case of closed vertical joints, the joint profile (Art. no. 640Q in case of single-span girder, plug-in joint profile, Art. no. 647, in case of single-span girder with jibs) must be used.

Fastening by means of vertical Omega profile K20.

Guidance for specification option:

  •  The profiles of the basic substructure have to be mounted perpendicularly and in a flush way (top-hat or alternatively Z-profile).
  • The Omega profiles K20 (Art. no. 624, 627, 633) have to be precisely aligned horizontally and be fixed through the long holes provided on the edge by means of screws (Art. no. 659-01) or rivets (Art. no. 658). (Pay attention to fixed and sliding point execution!).
  •  The distance of the rails in horizontal direction must correspond to the longitudinal grid of the panels.
  • A profile butt joint behind a panel is not allowed.
  • In case of open vertical joints, one joint spacer per panel (Art. no. 645) is inserted in a centric extrusion hole of the panel.
  • n case of closed vertical joints, the joint profile (Art. no. 640 in case of single-span girder; plug-in joint profile, Art. no. 647, in case of single-span girder with jibs) must be used.

Fastening with OmegaV profile for laying in bonds.

Guidance for specification option:

  •  The profiles of the basic substructure have to be mounted perpendicularly and in a flush way.
  • Fix the horizontal supporting profiles (Art. no. 597) at the pre-installed vertical substructure by means of supplied fastening materials.
  •  Hang in the OmegaV profiles exactly at horizontal grid distance.
  •  The distance of the profiles in horizontal direction must correspond to the longitudinal grid of the panels.
  • The position of the OmegaV profiles is secured at the suspension brackets on the left and the right by means of screws (Art. no. 659-01).
  • In case of open vertical joints, one joint spacer per panel (Art. no. 645) is inserted in a centric extrusion hole of the panel.
  •  In case of closed vertical joints, the joint profile OmegaV (Art. no. 707) must be used.
  •  In case of single-span girder, the plug-in joint profile OmegaV (Art. no. 712 in case of single-span girder with jibs) must be used.

Fastening OmegaS with Omega profile and supporting profile.

Guidance for specification option:

  •  The profiles of the basic substructure have to be mounted perpendicularly and in a flush way.
  •  Fix the horizontal K20 Omega profiles (Art. no. 627) at the pre-installed vertical substructure by means of the supplied fastening materials. The vertical distance depends on the panel length - single-span girder (= 1/2 of panel length), with jibs on both sides (= 1/4 of panel length).
  •  Mount the supporting profiles according to the height grid (panel length + 8 mm).
  •  Position the securing brackets (Art. no. 711) at both Omega profiles and fix them.
  • Alternatively, secure upper and lower end of the panels at the supporting profiles by means of R-clamps (Art. nos. 682R, 683R, 684R).

Fastening with clamp system K20.

Guidance for specification option:

  •  The profiles of the basic substructure have to be mounted perpendicularly and in a flush way.
  •  The distance of the bearing profiles (profile width ≥ 60 mm) in horizontal direction must correspond to the longitudinal grid of the panels.
  • The length of the vertical profiles must be divisible by the height of the panel format and should not exceed the height of a storey of the building.
  • A profile butt joint behind a panel is not allowed.
  •  In the vertical joints, the black joint tape (Art. no. 506) can be applied.
  • The clamps (Art. no. 680, 681, 682, 683, 684) must be fastened with at least 2 rivets (Art. no. 675-01) or 2 screws (Art. no. 657).
  • For the processing of the rivets (Art. no. 675-01), an extended rivetting tool (25 mm) is required.
  •  In the area of the clamp fastening, the joints can be closed with the joint profile (Art. no. 688) and one holding clip for joint profile (Art. no. 689) per panel.

Cladding panels

-

Material

Ceramic panels.

Panel joints

8 mm open joints.

10 mm open joints.

8 mm labyrinth joints.

10 mm labyrinth joints.

Manufacturer guidance

Subject to tile orientation and design, consult manufacturer for details.

System accessories

Article 620.

Guidance for specification option:

  • Fastening with vertical system rail K20.
  • System rail, painted.
  • Material: AlMg3 H22 (EN AW-5754) painted black, RAL 7021.

Article 625.

Guidance for specification option:

  • Fastening with vertical system rail K20.
  • System rail, bright.
  • Material: AlMg3 H22 (EN AW-5754) unpainted.

Article 630.

Guidance for specification option:

  • Fastening with vertical system rail K20.
  • System rail, external angle.
  • Material: AlMg3 H22 (EN AW-5754) unpainted.
  • For installation of mitre-cut panels and external angle profiles.


Article 635.

Guidance for specification option:

  • Fastening with vertical system rail K20.
  • Embrasure profile.
  • Material: AlMg3 H22 (EN AW-5754) unpainted.
  •  Dimensions and grid according to project-specific requirements.


Article 640.

Guidance for specification option:

  • Fastening with vertical system rail K20, vertical omega profile K20.
  • Joint profile K20/8.
  • Material: AlMg3 H22 (EN AW-5754), painted black, RAL 7021, RAL-color-painted on request.

Article 645.

Guidance for specification option:

  • Fastening with vertical system rail K20, Fastening with vertical T-profile K20, vertical omega profile K20, OmegaV profile for laying in bonds.
  • Joint spacer K20/8.
  • Weight: 0.5 kg / box.
  • Material: AlMg3 H22 (EN AW-5754), painted black RAL 7021.
  • Box contents: 250 pieces.

Article 658.

Guidance for specification option:

  • Fastening with vertical system rail K20, vertical omega profile K20, OmegaV profile for laying in bonds, OmegaS with Omega profile and supporting profile.
  • AI blind rivet, bright.
  • Weight: 1.3 kg / box.
  • Nominal dimensions: 4.8 x 10 mm.
  • Box contents: 500 pieces.

Article 659-01.

Guidance for specification option:

  • Fastening with vertical system rail K20, vertical omega profile K20, OmegaV profile for laying in bonds, OmegaS with Omega profile and supporting profile.
  • A4 stainless steel screw, bright.
  • Weight: 2.8 kg / box.
  • Nominal dimensions: 4.8 x 16 mm.
  • Box contents: 1,000 pieces + 1 bit.

Article 650 / 652 / 654.

Guidance for specification option:

  • Fastening with vertical system rail K20, vertical omega profile K20, OmegaV profile for laying in bonds.
  • External angle profile Square / Sword / Negative.
  • Material: AlMg3 H22, painted black, RAL 7021, RAL-color-painted on request.

Article 647.

Guidance for specification option:

  • Fastening with vertical system rail K20, vertical omega profile K20.
  • Plug-in joint profile K20/8.
  • Material: AlMg3 H22, painted black, RAL 7021, RAL-color-painted on request.
  • For installation in case of single-span girder with jibs.
  • Length: 1496 mm.

Article 682R.

Guidance for specification option:

  • Fastening with vertical system rail K20, Fastening with vertical T-profile K20, vertical omega profile K20, OmegaV profile for laying in bonds, OmegaS with Omega profile and supporting profile.
  • R-clamp.
  • Material: AlMg3 H22, painted black.

Article 683R.

Guidance for specification option:

  • Fastening with vertical system rail K20, Fastening with vertical T-profile K20, vertical omega profile K20, OmegaV profile for laying in bonds, OmegaS with Omega profile and supporting profile.
  • R-clamp.
  • Material: AlMg3 H22, painted black.

Article 684R.

Guidance for specification option:

  • Fastening with vertical system rail K20, Fastening with vertical T-profile K20, vertical omega profile K20, OmegaV profile for laying in bonds, OmegaS with Omega profile and supporting profile.
  • R-clamp.
  • Material: AlMg3 H22, painted black.

Article 657.

Guidance for specification option:

  • Fastening with vertical system rail K20, Fastening with vertical T-profile K20, vertical omega profile K20, OmegaV profile for laying in bonds, OmegaS with Omega profile and supporting profile, clamp system K20.
  • A2 stainless steel screw.
  • Black head.
  • For fastening of R-clamp.

Article 695Q.

Guidance for specification option:

  • Fastening with vertical T-profile K20.
  • Material: EN AW-6060 T6, painted black.
  • For installation with joint profile 640Q and joint spacer K20/8.

Article 640Q.

Guidance for specification option:

  • Fastening with vertical T-profile K20.
  • Joint profile.
  • Material: EN AW-6063 T66, painted black.


Article 647.

Guidance for specification option:

  • Fastening with vertical T-profile K20.
  • Plug-in joint profile K20/8.
  • Material: AlMg3 H22.
  • Painted black.
  • RAL-color-painted on request.
  • For installation in case of single-span girder with jibs.
  • Length: 1496 mm.

Article 624.

Guidance for specification option:

  • Fastening with vertical omega profile K20.
  • Omega profile, painted.
  • Material: AlMg3 H22, painted black.
  • For installation with joint spacer K20/8.

Article 627.

Guidance for specification option:

  • Fastening with vertical omega profile K20, OmegaS with Omega profile and supporting profile.
  • Omega profile, bright.
  • Material: AlMg3 H22, unpainted.
  • For installation with joint profile K20/8.

Article 633.

Guidance for specification option:

  • Fastening with vertical omega profile K20.
  • Omega profile, external angle.
  • Material: AlMg3 H22, unpainted.
  • For the installation of mitre-cut panels and external angle profiles.


Article 597-01.

Guidance for specification option:

  • Fastening with OmegaV profile for laying in bonds.
  • Horizontal supporting profile, perforated.
  • Standard length: 2995 mm.
  • Nominal dimensions: 05/90 x 25 mm.
  • Material: EN AW 6063 T66 unpainted.

Article 700.

Guidance for specification option:

  • Fastening with OmegaV profile for laying in bonds.
  • OmegaV, painted.
  • Material: AlMg3 H22, painted black.
  • For installation with joint spacer K20/8.


Article 701.

Guidance for specification option:

  • Fastening with OmegaV profile for laying in bonds.
  • OmegaV, bright.
  • Material: AlMg3 H22, unpainted.
  • For installation with joint profile OmegaV K20/8. 


Article 705.

Guidance for specification option:

  • Fastening with OmegaV profile for laying in bonds.
  • OmegaV, external angle, bright.
  • Material: AlMg3 H22, unpainted.
  • For the installation of mitre-cut panels and external angle profiles.


Article 707.

Guidance for specification option:

  • Fastening with OmegaV profile for laying in bonds.
  • Joint profile OmegaV K20/8.
  • Material: AlMg3 H22, painted black RAL-color-painted on request.


Article 712.

Guidance for specification option:

  • Fastening with OmegaV profile for laying in bonds.
  • Plug-in joint profile OmegaV K20/8.
  • Material: AlMg3 H22, painted black RAL-color-painted on request.


Article 710.

Guidance for specification option:

  • Fastening with OmegaS with Omega profile and supporting profile.
  • Material: AlMg3 H22, painted black.

Article 711.

Guidance for specification option:

  • Fastening with OmegaS with Omega profile and supporting profile.
  • Position securing bracket, bright.
  • Material: AlMg3 H22, unpainted.
  • Box contents: 50 pieces.


Article 688.

Guidance for specification option:

  • Fastening with OmegaS with Omega profile and supporting profile, clamp system K20.
  • Joint profile.
  • Material: EN AW 6063 T66, painted black, RAL-color-painted on request.
  • Length: 1496 mm.

Article 689.

Guidance for specification option:

  • Fastening with OmegaS with Omega profile and supporting profile, clamp system K20.
  • Holding clip for joint profile.
  • Material: AlMg1, unpainted.
  • Box contents: 100 pieces.

Article 680.

Guidance for specification option:

  • Fastening with clamp system K20.
  • Twin-clamp K20.
  • Weight: 45 kg / 1,000 pieces.
  • Perforation: 2 x 3.3 mm Ø.
  • Material: AlMg3 H22, painted black.

Article 681.

Guidance for specification option:

  • Fastening with clamp system K20.
  • Edge-clamp K20.
  • Weight: 24 kg / 1,000 pieces.
  • Perforation: 4 x 3.3 mm Ø.
  • Material: AlMg3 H22, painted black.


Article 682.

Guidance for specification option:

  • Fastening with clamp system K20.
  • Edge-clamp K20, left.
  • Weight: 24 kg / 1,000 pieces.
  • Perforation: 4 x 3.3 mm Ø.
  • Material: AlMg3 H22, painted black.


Article 683.

Guidance for specification option:

  • Fastening with clamp system K20.
  • Edge-clamp K20, right.
  • Weight: 24 kg / 1,000 pieces.
  • Perforation: 4 x 3.3 mm Ø.
  • Material: AlMg3 H22, painted black.


Article 684.

Guidance for specification option:

  • Fastening with clamp system K20.
  • Single-clamp K20.
  • Weight: 45 kg / 1,000 pieces.
  • Perforation: 2 x 3.3 mm Ø.
  • Material: AlMg3 H22, painted black.


Article 675-01.

Guidance for specification option:

  • Fastening with clamp system K20.
  • Stainless steel blind rivet, black.
  • Weight: 1.05 kg / box.
  • Nominal dimensions: 3.2 x 9.5 mm.
  • Box contents: 500 pieces.
  • extended mandrel (58 mm).


Article 506.

Guidance for specification option:

  • Fastening with clamp system K20.
  • Joint tape, black.
  • Weight: 0.5 kg / roll.
  • Nominal dimensions: 40 mm wide, 50 m.
  • Self-adhesive, weather-resistant.


Colour

1120 Milan beige H.

1152 Quarzit basalt-grey H.

1115 Rockface 1 H.

1110 Mega 1 H.

1121 Milan grey H.

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Finishes

Glazed.

Unglazed.

Dimensions

900 x 150 mm.

900 x 175 mm.

1200 x 200 mm.

1200 x 225 mm.

1500 x 250 mm.

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Panel Type

Panel with irregular grooves.

Guidance for specification option:

Cross-section 8.

Grooved panel.

Guidance for specification option:

Cross-section 1.

Grooved panel positive.

Guidance for specification option:

Cross-section 2.

Shed profile.

Guidance for specification option:

Cross-section 4.

New Wave.

Guidance for specification option:

Cross-section 7.

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Sustainability data

Contains Red List materials

No

Country of material origin

Germany

Country of product manufacture

Germany

Material

Ceramic

Manufacturing plant location

Embodied carbon

A1-A3 (production stage) as defined in BS EN 15804

22.68 kg CO₂ eq/kg

Self declared

Recyclability

94.5%

Literature

Keratwin K20 - Fire Protection information

Keratwin K20 - Fire Protection information

Keratwin K20 Horizontal Clamp Detail

Keratwin K20 Horizontal Clamp Detail

Keratwin K20 Hytect Information

Keratwin K20 Hytect Information

Keratwin K20 Omega 20 Horizontal Top Hat Mounting System

Keratwin K20 Omega 20 Horizontal Top Hat Mounting System

Keratwin K20 Omega S Mounting System

Keratwin K20 Omega S Mounting System

Keratwin K20 Omega V Mounting System Details

Keratwin K20 Omega V Mounting System Details

Keratwin K20 System rail details

Keratwin K20 System rail details

Technical Data for Keratwin K20

Technical Data for Keratwin K20

EH Smith // Buchtal Ceramic Facade Systems 2024

EH Smith // Buchtal Ceramic Facade Systems 2024

HT Coating Information Sheet

HT Coating Information Sheet

Case studies

Circle Square, Manchester

Circle Square, Manchester

Islington Square, London

Islington Square, London

Telegraph Works, London

Telegraph Works, London

The Store, Oxford

The Store, Oxford

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