Building brick

摘要

The brick consists of two essentially parallel side walls joined by two outer transverse bridge elements (5) and at least one cross-bridge (6) with cavities (7) formed between the cross-bridge and bridge elements, especially for accommodating thermally insulating material (8). At least one bridge element is a double bridge with at least two bridges (10,11), whereby the bridges are joined by at least one cross-rib (12).