The role of the building envelope - related to the energy performance of a building and the comfort of the user - is significant and, because of the sustainability aspect, is coming into focus more and more. Since the introduction of the double leafed façade, it is obvious that the climate performance of a building can be an important tool for architectural expression. Climate-oriented architecture is related to all aspects of building. It will affect the design as well as the building process and the construction itself. For this publication The Future Envelope 2, specialists from the fields of architecture, engineering and research were asked to share their practical experience and their visions for the future of the climate-oriented building envelope.