| 摘要 |
<p>Embodiment of a wooden girder, which is so formed that the insulating properties are very good and the depth of the web of the wooden girder is directly adapted to the thickness of a wall, i.e. to the thickness of the isolation. The wooden girder is also suitable for working and nailing can easily be performed. The wooden girder can also meet other demands which can be made on wooden girders for instance admissible load, axial load and refractoriness and the wooden girder comprises two parallel wooden beams (1, 2) joined by spacing element (3). The spacing element consists of polyurethane foam, which binds the two wooden beams (1, 2) together with a distance which is adapted to the wanted depth of web of the wooden girder. </p> |
