Our board Annett Kühn IWG5 Buildings Chair Petra Ruether Co-Chair of IWG5 Buildings Sustainable materials and technologies for energy-efficient solutions for buildings Francesco Guarino Co-Chair of IWG5 BuildingsSustainable materials and technologies for energy-efficient solutions for buildings Teresa Cuerdo Co-Chair of IWG5 Buildings Cross-cutting heating and cooling technologies Interested in joining our Working Group? REACH US