In the field of rational construction, sandwich walls represent a good alternative to other building methods. In order to ensure a stable wall structure and safe transport, however, several aspects have to be considered. The building supplier H-Bau Technik from Klettgau offers a complete coordinated system for the construction of insulated sandwich walls. The Thermowand System from H-Bau Technik encompasses virtually all components required for the construction of these prefabricated elements.