In June 2026, the German Weather Service reported record-breaking temperatures across Germany, with over 40°C recorded at 46 weather stations. This intense heat wave has prompted experts to call for urgent adaptations in housing to ensure comfort and safety as extreme heat events become more frequent.
Understanding Heat-Resistant Housing
According to Thomas Auer, a professor at the Technical University of Munich, the design of homes must consider cooling mechanisms during the construction phase. He emphasizes that failing to integrate effective cooling strategies leads to uncomfortable living conditions during heat waves.
“If you don't think about cooling in the summer when you're building, that's a big mistake,” Auer stated. The challenge lies in balancing natural light with effective temperature regulation, as excessive sunlight can turn homes into glasshouses, leading to increased indoor heat.
Materials for Effective Heat Regulation
Homes in Germany are predominantly constructed from concrete, which offers high thermal mass, allowing it to absorb and gradually release heat. However, this only works if nighttime temperatures drop sufficiently. When nights remain warm, concrete retains heat, exacerbating indoor discomfort.
Auer advocates for a blend of mineral and natural materials, suggesting a return to traditional methods like half-timbered framing filled with clay. Clay can effectively regulate indoor temperature and humidity, making it a suitable choice for heat-resistant housing.
- Concrete: High thermal mass but high CO2 emissions.
- Clay: Regulates temperature and humidity effectively.
- Wood: Natural material that complements concrete.
Innovative Cooling Solutions
Incorporating activated clay building panels can enhance existing apartments' heat resistance. These panels utilize a system of pipes for water circulation, effectively regulating indoor climate throughout the year. Additionally, heat pumps can be utilized for cooling, operating in reverse mode to provide relief during extreme heat.
Auer also draws inspiration from regions that have long adapted to heat, such as Andalusia in Spain, where courtyard houses create shaded microclimates. These designs facilitate cross-ventilation and improve indoor conditions, offering practical lessons for modern housing.
While air conditioning may seem like a straightforward solution, Auer warns against its overuse. Air conditioning systems can create drastic indoor-outdoor temperature differences and negatively impact air quality. “Air conditioning is short-sighted,” he noted, stressing that sustainable solutions must focus on natural and mineral materials with ample shading options.
🤖 This article was rewritten by Feed and Figures' editorial AI from a report originally published by DW English. Facts and quotes are preserved from the original; the rewrite focuses on clarity and structure. For the unedited original, see the source link below.
