Sebastian Herkel | Renovating a high-rise to the Passive House Standard - a year of operational experience

At Buggingerstrasse 50 in Freiburg, the first residential high-rise from the 1960s was retrofitted in compliance with the Passive House Standard. Measurements taken in the first year of usage show that the targets were met and the building concept was successfully implemented.

Florian Lichtblau | Retrofit of a timbered 1958 multi-story residential complex

A post-war complex from 1958 in western Munich was in need of renovating. It was first investigated as part of a university project and then as a planning model before becoming a showcase project for holistic timbered retrofits. Retaining the load-bearing structure, restructuring the floor plan, providing greater urban density, a Passive House envelope in prefabricated timber, a timeless design, and a renewable energy supply were decisive for the exemplary lifecycle balance and holistic affordability.

Marc Großklos | Results from the retrofit of seven multi-family units to the Passive House Standard

The retrofit of seven multi-family buildings showed that heating energy consumption could be reduced by 70% even with higher temperatures. The equipment used needs to be improved, however. The rent+heat model does not seem to have affected consumption much.