Stefan Müller, Managing Director and owner of RAUMTAKT GmbH, is a speaker at the Liiva webinar: Energy-efficient refurbishment - done right! With our design and strategy approach, RAUMTAKT GmbH wants to set a good example and create an ecological world of tomorrow with buildings. Despite many buildings in need of renovation, there is a real renovation backlog in Switzerland. Energy-efficient buildings make an important contribution to achieving climate targets. But what is the best way to approach an energy-efficient renovation and how can the savings potential of a building be exploited?