Severe precipitation events, forest fires, melting glaciers and polar caps are among the obvious consequences of climate change. International political strategy focuses on greater sustainability, with the aim of achieving climate neutrality in the EU by 2050. As one of the biggest emitters of greenhouse gases, the building sector has the opportunity to make a crucial contribution. In Germany, CO₂ emissions in the sector fell from 210 million tonnes to 120 million tonnes between 1990 and 2020. The aim is to achieve a further reduction to 67 million tonnes by 2030 (Source: Bundesregierung) – a huge challenge for the property industry.