Abstract: In an edge connection for the panes (1, 2) of a compound glass element there is provided a spacing profile (3) which preferably consists of a poorly heat-conductive plastic material. This is adhered between the panes with a contact adhesive (4). As a vapour-barrier, a band (5) of a thin flat metal foil is applied around the exterior of the spacing profile. The outer surface (3.1) of the spacing profile is inwardly offset with respect to the flat metal band in the edge regions adjacent the panes, in such a way that peripherally running chambers (6) are created. These chambers are filled with a vapour-proof adhesive, preferably butyl-adhesive.

Abstract: The glazing element is provided with at least one tensioned insulation form (2) between two panes (1). Spring elements (3) secured to a tension profile (4) serve to place the film under tension. The spring elements are distributed over the entire film periphery. They are also elastically bendable in all directions transverse to their elongation, and are secured with their longitudinal direction essentially perpendicular to the film plane with one end at the film and the other end secured to the tension profile In this manner, the spring elements can elastically follow relative shape alterations of the film with respect to the tension profile by bending transversely to their longitudinal direction. In this novel construction, tension forces are distributed in all directions in the insulation film. No friction forces need to be overcome in order to tension the film. The entire tension taken up by the film support is so small that it is possible simply to adhere the tension profile inwardly to the panes.

Abstract: For lowering the energy requirement for a room (2) ventilated by a ventilating system (11 to 17) of a building (1), windows (4) and opaque wall parts of the outside wall (3) are designed so that the heat transfer numbers (kF and kW, respectively) are smaller than 1 W/m.sup.2.K. In addition, the supply air flows into the room (2) near the floor (9) at the comfort temperature of at most 20.degree. to 22.degree. C. and an input velocity which does not exceed a maximum air velocity which is permissible for comfort conditions in an occupied zone.

Abstract: For reducing the energy required for lighting and heating in a room (2) of a building (1), windows (4) and opaque wall parts (3) of the outside wall are designed so that their heat transfer numbers (k.sub.F and k.sub.W, respectively) are smaller than 1 W/m.sup.2 K. Electric lighting fixtures (7) and heaters (8) which have at least approximately equal power ratings are used for lighting and heating.

Abstract: The composite laminate is made of two metal parts 1, 2 and a pair of thermal insulating bars of fiber reinforced synthetic material. Each metal part has a longitudinally extending groove which is provided with two rows of transversely disposed teeth which cut into the flanks of anchoring strips on the synthetic bars during pressing in of the strips in the respective grooves. The pressing in of the synthetic material into the teeth of the harder metal parts forms a strong bonded connection which resists the stresses imposed upon the laminate during use. Deformable tabs on the metal parts are used to ensure locking of the synthetic bars in place. The space required for production of the laminate is reduced essentially to the length of the metal parts.