The timber used as the raw material for the construction of WOODWILL houses is from Finnish forests and is between 80 - 100 years old. The long cold winters that are characteristic in this region produces logs that are extremely close ringed, thus producing timber that is highly durable and flexible. All logs and beams used in house construction are kiln dryed under factory-controlled conditions to minimise any changes in shape or form. The high resin content of the timber results in resistance to timber pests. This means that we can guarantee the hermetic air sealing of our construction logs and beams. Today, it is still possible to see throughout Scandinavia and Germany houses that are 400 to 600 years old.