Clayworks Clay Panels

  • The panels are especially suitable for bathrooms as the clay system absorbs the humidity and in kitchens where the clay plaster significantly decreases the build-up of grease.
  • Not suitable for areas where there is contact with running water.


Vapour diffusion, open clay plaster dry-lining boards with sandwich construction, consisting of a 17 mm soft fibreboard (to DIN EN 18986), clay plaster and glass fibre reinforcing tape. All four edges are tapered.

The panels are designed to be finished with Clayworks Clay Plaster and have all of the health, sustainability and performance benefits of clay when used as an internal building material including breathability, no volatile organic compounds (VOCs), no toxins, no off-gassing, humidity control, thermal and acoustic properties. The composition enables consistent and reliable products with an extremely small deviation in the boards’ thickness compared to other systems.

Features and benefits:

  • The panels are as easy to work with as plasterboard.
  • Fibreboard panel is lighter and easier to manoeuvre. Both system types require skimming and the potential need for scrim tape etc.
  • Boards join together smoothly so that (unlike with many other systems) full-face clay plastering is not necessary to hide joints between boards, contributing to up to 40% in time-saving compared to other systems.
  • Additional time savings if boards are adhered to the wall (rather than screwed or stapled). Can be adhered to cement walls and gypsum boards.
  • No plugging necessary.
  • The panels can be easily cut to size with a circular saw.
  • The panels can be directly screwed or stapled to wooden studs under construction or adhered to a brick wall or concrete with a mineral lime adhesive.
  • Reinforcing tape is stapled to the joints and filled with jointing material.
  • The clay plaster finish is BRE Class 1 fire rated.
  • The panels offer good sound insulation.
  • Absorbs and stores indoor air pollution (odours and smells).
  • Energy-efficient: The panels store warmth during the day and release it slowly in the night.
  • High inherent stability – good for stud constructions without support.
  • Humidity regulation: The boards plus clay plaster help to keep a room at about 50%, optimum for helping to prevent asthma as this helps to keep the mucous membrane from drying out.
  • Wood fibreboard can be placed behind the panels for stability and added acoustic and thermal performance.
  • The panels can adhere to any flat solid surface such as concrete walls and ceilings but for masonry, the manufacturer recommends a softwood subframe which allows for even spacing of screws to fix the boards. The subframe also creates a space to run services.

General information



Finished with Clayworks Clay Plaster


The product consists of a 17 mm soft fibreboard (to DIN EN 18986), clay plaster and glass fibre reinforcing tape



Sandwich construction.


31 x 625 x 1150 mm

Uniclass 2015

Ss_32_46_65_15 Clay plaster systemsPrimary


K11/60 Board

K11/865 Softboard

M20/220 Multicoat proprietary plaster

M20/42 Proprietary plaster

Specification data - Clay plaster systems Enhanced data

Substrate preparation

As manufacturer's recommendation.

Product Reference

Clayworks Clay Panels.


15 kg/ plate.

Vapour diffusion

m <7.


0.42 W/m×K.


2.37 W/m²×K.

Acoustic value

Tested to DIN EN ISO 10140-2.

Consult manufacturer for details.

Environmental information

Embodied carbon

Extremely low levels of primary operational energy are used in manufacturing


Sustainable materials primarily used in construction – wood and clay.

Similar products from Clayworks Ltd