CRAVEzero @ SBE Conference 2019 (c) Lunghammer, TU Graz (c) Heide Spitzer, CCCA Call for abstracts: SUSTAINABLE BUILT ENVIRONMENT D-A-CH CONFERENCE 2019 Transition Towards a Net Zero Carbon Built Environment 11 – 14 September 2019 Graz University of Technology, Austria Special Session 12 CRAVEzero – Next generation nZEBs