Abstract
Different approaches for investigating Solar Envelope Systems are required for residential and office buildings. This report has the goal to describe the different methods used for non-residential (i.e. office) and residential buildings and to give comprehensive information about the reference buildings and HVAC systems used in IEA SHC Task 56. In report DC.1 gives general information about benchmarks, simulation models of the reference buildings as well as, reference locations and climate analysis and finally Key Performance Indicators (KPIs). Additionally, an overview on the features of different simulation platforms is given