Johannes Wagner, chairman of the Gründa association, is managing director of Allesdach Wagner GmbH and has developed and implemented a multifunctional detention roof that combines real surface unsealing and maximum climate change adaptation.

With the work through the Gründa association, he wants to raise awareness of the numerous advantages of green roofs in society and promote their implementation as an essential part of sustainable architecture. Gründa are passionately committed to this, both in the public sphere and in professional circles to increase knowledge about and appreciation for sustainable green roofs. Johannes is also actively involved in various technical committees and working groups

Development of national standards for flat roofs and green roofs.

In addition, he is involved in numerous research projects on topics such as roof biodiversity, soil fertility, urban farming and greening, rainwater cycles, and the use of building technology as well as increasing the efficiency of PV systems through evaporative cooling.