Eco Clay Thermal Building Board

Thermal Insulation Boards

A new innovative Eco-Building Board alternative to gypsum

Short Description

Interior (dry wall) construction board made of clay and coconut fibres reinforcement. The clay board has a positive effect on the room climate such as moisture absorption, vapour diffusion, odour-binding, heat storage capacity, and shielding of high-frequency electromagnetic radiation. Clay construction boards are the professional and healthy alternative to the standard gypsum plaster board.A 22 mm boards can be used instead of conventional gypsum boards as interior wall mounting on timber constructions or dry un-rendered walls, as partition walls and wall boarding. They are also suitable for droops and ceilings with strengthened substructures and for attic constructions. 14 mm boards can be used as additional interior wall cover on top of OSB boards or gypsum boards, e.g. for building renovation.

Application

The clay boards can be easily cut to size with a compass saw or circular saw and broken. The clay boards should be installed by two people. Wearing a protection against dust is recommended.

22 mm board

On vertical construction, the 22 mm clay board should be fixed with screws only. Each board with up to 9 anodized screws or stainless steel screws, 3.5 mm x 45 mm onto the supporting construction. On ceilings and underroof construction, up to 15 screws are applied using an additional under-laid metal washer. The screws should be fixed until they are even with the clay board surface (sinking of the screw into the clay board of 1 to 2 mm is acceptable). For installation of clay boards in bath rooms and laundries, the screws should be corrosion-free (galvanized screws are not sufficient in this case).

14 mm board

On massive construction (brick or concrete walls), 14 mm clay boards can be applied directly to the wall with clay surface plaster or mortar used as adhesive. On OSB boards or gypsum boards, the 14 mm clay board is fixed with screws. The 14 mm board is flexible within a radius of 1.50 metres or more. Even when flexed the clay board does not need any fixing other than screw.

Surface Finishing

The boards need to be lightly watered. Afterwards an armouring soaked in thinned fine clay plaster is applied on the whole surface. On top of the armouring another layer (3-5mm) of fine clay plaster is applied to equalize the surface after 2-3 days drying time the surface is ready for painting. Recommended is VOLVOX Clay Décor as it has the same physical qualities of clay itself. If other paints are used they must be permeable to vapour more than 95%.

Technical data

• Weight: 29 kg/m2 (22 mm board), 17 kg/m2 (14 mm board)
• Specific weight: 1200 kg/m3
• Compression strength: > 2.5 N/mm2
• Thermal conductivity: 0.47 lambda W/mK
• Tolerated deviation in length and width: 2-3 mm
• Building Material Category: A1

Storage

On a dry place, the clay boards can be stored without time limit. Always store horizontal, not upright or leaned against a wall.

Would like more information about our Clay Thermal Insulation Building Boards,View pdf brochure or contact us.   To buy you can either purchase online or email us directly with your order.