Protecting wood naturally with thermal modification

Wood is unique and versatile to use. However, its vitality also brings change: it ages and “works” as it absorbs and then releases moisture. Using thermal modification, we can control its independent existence and turn wood into a reliable partner.

Utilising new technology
During thermal modification, timber is warmed for 50 to 90 hours and then heated for a short time at over 200°C. This changes the cell structure in such a way that water absorption and thus compensation moisture is crucially reduced. Swelling and shrinkage are reduced by up to 70%. Bacteria and fungi that break down wood lose their nutritional basis, as hemicellulose – short-chain sugar components – is broken down. The thermal treatment increases natural durability for use outdoors. Exotic new colours give it a special flair – exclusively using temperature without any chemical processes or additives.

Innovative, ecologically sophisticated
Our four high-temperature plants of different sizes work using a heating process without any additives. The exact processes are monitored using temperature sensors attached to the wood. Sustainability is particularly important to us here. We use a biomass heating plant to generate the necessary heat. This plant is fuelled using material that comes 100% from our own company (waste wood, bark, etc.).

The result is clear to see
The thermal treatment has a completely natural effect right down into the centre of the wood. The new appearance and the altered technical properties open up new possible applications. Thanks to the significantly reduced swelling and shrinkage coefficient, it is also the ideal construction material for modern façade designs.