Overheating homes: how to avoid an unliveable summer

80% of homes in France are at risk of becoming unliveable in summer, according to Météo France projections. Summer comfort has become a serious question for health, for energy performance and for whether a home remains habitable at all.

Why are we talking about homes that behave like kettles?

As heatwaves become more frequent, a great many homes turn into ovens from June onwards. By 2050 the average temperature in France could rise by 2.7 °C. Homes that are poorly insulated or poorly ventilated store that heat and become unliveable in summer, which is dangerous for anyone frail, elderly or very young.

Air conditioning, heat pumps, fans: temporary answers with a cost

Faced with the discomfort, many households install air conditioning or reversible heat pumps. These carry a real environmental and financial cost: they use a great deal of electricity, lose efficiency above 35 °C, and discharge their heat into the surrounding urban air. They treat the symptom.

The real answer: insulation designed for summer

What decides summer comfort is insulation that keeps heat out rather than trapping it inside, which is what certain mineral products end up doing. Conventional materials such as glass wool and polystyrene have a short thermal lag: the heat crosses them within a few hours, and then stays in the house.

R'BULL: reflective thin insulation built for summer comfort

R'BULL is a multilayer thermo-reflective insulation designed to stop heat before it enters the building. It acts as a shield against infrared, sending back up to 95% of thermal radiation. Fitted to a roof, a rafter line or a loft, it holds the indoor temperature far steadier and cuts the need to run air conditioning at all.

Very thin, light and quick to fit, it suits detached houses, industrial buildings and housing in tropical territories, where it has been in widespread use for years.

What R'BULL brings to summer comfort

• ✅ Effective thermal insulation against summer heat
• ✅ Blocks infrared radiation, up to 95%
• ✅ Less reliance on air conditioning
• ✅ Quick to fit, with no added thickness
• ✅ Suits renovation, lofts, roofs, sheds and public buildings

Summer comfort is a public health question as much as an energy one

With the climate changing, insulation needs rethinking. Summer comfort should become a criterion in energy performance assessments, alongside winter consumption, rather than an afterthought.R'BULL offers a technical answer that lasts and costs little to run, to reduce overheating in homes and protect the health of the people living in them.

Request a quotation or a free assessment