Spain's heat wave spurs push for building insulation and aerotermia adoption

Spain is experiencing its first summer heat wave of 2026, with temperatures exceeding 46 °C and night‑time lows staying above 25 °C in many regions. The extreme conditions expose a structural problem: many buildings lack adequate thermal envelope insulation, leading to rapid indoor overheating, higher reliance on cooling systems, increased CO₂ emissions, discomfort and rising energy bills.

SOPREMA promotes its SopraXPS extruded polystyrene (XPS) solution, highlighting its high thermal efficiency (conductivity 0.025‑0.040 W/m·K), compression strength, low water absorption and dimensional stability. The company claims that integrating SopraXPS can cut a building’s energy consumption by up to 40 % while improving comfort and extending the structure’s lifespan, and the material is 100 % recyclable.

A Bosch Home Comfort study of Spanish households finds that 34 % of consumers view aerotermia as the most efficient heating‑cooling system, ahead of inverter air‑conditioners. However, knowledge gaps persist: about half cannot distinguish aerotermia from split systems, and many mistakenly believe it consumes excessive electricity, is costly, or is only suitable for heating. The report notes that public subsidies can lower initial investment, yet only 20 % of respondents know how to apply for them. With 58 % of consumers considering upgrading their climate‑control equipment, better information and advisory support are seen as key to wider adoption.