Svalan Restaurang, Brunnsparken, Orebro, Sweden, 1970

Architect: Svenska Riksbyggens Arkitektkontor (Lennart Gren, Vera Spartalj Waters)
Engineer: David Jawerth

The Jawerth spatial system represents a new and important departure in the field of suspended roofs. The roof surface consists of a double grid of cables, one load-carrying, one stabilizing, with diagonal ties to connect the two. This new type of structure presents the same static and dynamic characteristics as the Jawerth plane system. The most typical form obtained under these terms is that of the hyperbolic paraboloid.