Our 60mm thick panel with a width of 500 mm has 12 shells and achieves a Ucw value of approx. 0.87W/m²K (according to DIN EN ISO 10077-2). The building authority approval for the panel has been obtained. This system is particularly interesting for high-quality industrial glazing, for glazing in the roof area with the corresponding minimum inclination and wherever high demands are placed on thermal insulation.