Abstract: Surface-forming panel, especially intended for intermediate walls, ceilings, floors and external walls and the like, consisting of a framework of sheet metal profiles or the like supporting a sheet material which preferably has a finish or facing ready for use.The new feature is that profiles (3, 4) constituting the framework are fixed to the panel (1) already before this is mounted, and that these profiles are adapted, to minimize the total panel thickness, to be carried to its operative position projecting from the back of the panel, only after having arrived on the mounting site, and that the profiles (3, 4), which are attached to the panel (1), are adapted to be mounted in folded position closely applied to the panel and are provided with bending notches (17) to facilite unfolding thereof.

Abstract: A sound attenuating wall comprises a skeleton frame, surface layers secured thereto, skeleton frame members, and an insulation provided between the skeleton frame members and the surface layers, respectively. The skeleton frame members are formed by two elements which in point of strength act separately of each other and are interconnected by portions of material which are weak or slender in the direction of the plane of the wall. The insulation disposed in the wall fills out only part of the space therein.