Insulating plate is provided at least on one of its edges with a hooked tongue-and-groove formation which engage with a complementary formation of another insulating plate

摘要

The insulating plate (1) in the form of a rectangular slab (3) is provided at least on one of its edges with a hooked tongue-and-groove formation (4) which engage with a complementary formation (4) of another insulating plate (2) to produce a joint capable of supporting tensile forces. Independent claims are also included for the following: (a) an insulating cover built of the proposed insulating plates (b) a concrete building element with such an insulating cover (c) a method for producing a concrete building element with an insulating cover