20 million French people will see their house crack in the coming years: understand the causes and protect your home.

More and more French households are seeing their homes crack due to repeated droughts. A recent study reveals that 20 million French people could be affected by this phenomenon by 2050. Houses built on clayey soil are particularly vulnerable, as the swelling and shrinking cycle of the soil damages the foundations and structure.

The numbers are alarming: between 2006 and 2022, the number of affected houses increased by 145%. Climate change only worsens the situation, according to a study conducted by the association Conséquences and the start-up Callendar. These institutions have highlighted the regions most affected by this disaster.

Faced with these findings, it is crucial to adopt measures to protect our homes against these devastating effects.

13.6 million affected houses

By 2050, around three quarters of individual houses in France could experience cracks, threatening nearly 13.6 million homes. The most vulnerable regions include Centre-Val-de-Loire, Occitanie, Nouvelle-Aquitaine, Île-de-France, Grand-Est, Bourgogne-Franche-Comté, and Auvergne-Rhône-Alpes. These cracks could affect up to 20 million people.

Areas currently at lower risk like Brittany and Normandy could see their risk rate increase by over 100%. This situation is exacerbated by several factors:

  • Shallow anchoring of houses without a basement or crawl space.
  • Proximity to mature trees that dry out the soil.

In summary, it is crucial for homeowners to be aware of these risks in order to take necessary actions.

Are you affected?

To assess the risk of cracks in your home, Callendar offers an application called “Risque Maison Climat RGA”. It allows everyone to identify potential dangers by providing their address and some information about the building structure.

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According to Sylvain Trottier, director of the association Conséquences, this application helps identify the main factors contributing to house cracks. Climate plays a crucial role in these risks.

If you already notice cracks, contact your neighbors to see if they are experiencing the same issue. For a recent house (less than 10 years old), contact your building insurance to activate the warranty. In the case of an older house, contact the local town hall to request recognition of a natural disaster and obtain compensation.

Preventive measures will be necessary in the future to mitigate the effects of drought on French homes.

Source: demotivateur.fr