Prefabricated sandwich element for covering insulating walls has rectangular body with protuberances on each minor edge and covered with two metal sheets on principal sides

摘要

The sandwich element comprises a rectangular body with one or two protuberances (1.3,2.2) for each minor edge (1.1). It is covered with two thin metal sheets (2) which are applied on the principal sides and folded over the minor edges. One of the protuberances has a groove (1.32) on the inner side near the panel central body (1).