MANUFACTURING METHOD FOR A HIGH DURABILITY, HIGH INSULATING COMPOSITE TIMBER MEMBER AND A COMPOSITE TIMBER MEMBER

摘要

The present invention describes a method for thermo-treatment of wood, where said method comprises the following steps: a) selecting the wood to be as free from knots as possible b) introducing the wood to a temperature increase up to approximately 173° C; c) maintaining the wood at an ambient temperature of 173° C for 3-5 hours; d) decreasing the temperature to approx. 20° C; e) introducing the wood into an autoclave wherein a mixture of linseed oil and mineral oil is applied to the wood, and allowing the mixture to penetrate the wood f) retrieving and storing the treated wood. Furthermore a timber member made with wood treated according to the method is disclosed.