German's Energy House ．ドイツの家 ②

Passive house has become more popular in German-speaking countries and Scandinavian countries. I do not know exactly how it works but the super energy sufficiency building requere ultra-low energy for space heating and cooling. Behind the patina of Corten steel panels facade up to 30 centimeters thick layer that provides excellent insulation.  The Passive House in Eselsberg by architectural planning Mühlich, Fink & Partner.