While the heat wave is hitting France hard, the heat wave reminds us how important the thermal insulation of our homes is. In this regard, Hello Wattthe energy advice platform for individuals, carried out a study taken over by BFMTV this Monday, June 20, on the metropolises which have the most thermal strainers.
The study, which is based on data provided by the Environment and Energy Management Agency and the 2017 INSEE census, shows that the cities with the fewest thermal sieves are mainly located in the south of the country. Conversely, Île-de-France is the region with the highest number of poorly insulated homes.
The ranking is dominated by Perpignan (4.2% of dwellings classified F or G), Nîmes (6.6%) and Angers (6.6%). According to Hello Watt, the good insulation of southern cities can be explained above all by the type of construction materials used: “One of the reasons which may explain this phenomenon lies in the materials used for the construction of housing, which vary or have varied according to the regions. In Provence, for example, many houses are made of stone, which makes it possible to store the heat during the day and to diffuse it gradually in the accommodation when the temperature drops”. In addition, the low share of old housing can also explain these good results.