From the inside to the outside, the exterior wall elements have a total thickness of 32.4 cm (heat transfer coefficient = 0.19 W/m2*K), as follows:
• 25.1 cm dowelled cross-laminated fir wood elements • 4.4 cm soft wood fibreboard • 2.9 cm fir wood board layer
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The beech wood dowels are kiln-dried and incorporated during the manufacture of the elements, and swell up to the building humidity (approx. 15% ± 3%), so that they adjust to the pressure on the soffits of the holes. No separate component to ensure airtightness is necessary.
(the spacing scheme is 30 cm lengthways and 24 cm at right angles, whereby the rows of dowels are offset in a lengthways direction, 15 cm from one another). The mechanical join within the board stack elements works using friction between the beech wood dowels and the perforations in the cross-laminated timber elements.
Outer Walls
The outer walls are made of solid timber with cross-laminated timber elements. The board layers of these elements were fixed and mechanically joined to beech wood dowels using a specific system (DeepGreen/Holz100). The dowels are placed at right angles to the board layers, at frequent intervals High quality materials such as solid timber boards can also be re-integrated during conversion work. Empty ducts and flexible connection options (Homeway) also ensure maximum flexibility for building services in case of renovation or conversion.
Due to the permeable structure with highly insulating building components, these problems are virtually eliminated. The façade construction was examined in a durability simulation so as to ensure that living costs remain as low as possible. Optimal construction, fire safety, humidity control, and a weather-proof structure go hand-in-hand.
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