the building skin has evolved enormously over the past decades. energy performance and environmental quality of buildings are significantly determined by the building envelope. the facade has experienced a change in its role as an adaptive climate control system that leverages the synergies between form, material, mechanical and energy systems in an integrated design. the powerskin conference aims to address the role of building skins to accomplish a carbon neutral building stock. topics such as building operation, embodied energy, energy generation and storage in context of envelope, energy and environment are considered. the 2019 issue of the conference powerskin focuses on the digital processes in facade design and construction, showcasing presentations about recent scientific research and developments in the field. the technical university of munich, prof. dipl.-ing. thomas auer, tu darmstadt, prof. dr.-ing. jens schneider and tu delft, prof. dr.-ing. ulrich knaack are hosting the powerskin conference in collaboration with the trade fair bau 2019, supported by the national funding initiative zukunft bau (bbsr). it is the second event of a biennial series. on january 17th, 2019, architects, engineers, and scientists present their latest developments and research projects for public discussion.