| 摘要 |
<p>There is a metal base panel with bent sections protruding from the main plane, and a connected covering profile panel of trapezoid sheet metal, or similar, in the double-layered element, esp. for walls or roofs on prefabricated houses, hangar-type structures or garages. The two panels (ia-ic, 3) are connected by cross-bearers (2), set at an interval (a from the plane of the base panel and held on its bent sections (5, 6). The cross-bearers may be angle pieces, with the cover panel (3) connected to the flange (7) parallel to the base panel. Heat bridging between the two panels is minimal.</p> |
