One in two homes threatened by drought

This year, around 100,000 homes have been damaged. Alexis Christiaen (Pib) / PHOTOPQR / VOICE OF THE NORTH / MAXPPP

ANALYSIS – Public authorities are experimenting with solutions to protect homes built on clay soil in France.

This is a phenomenon that is taking on a worrying scale in France. This summer’s drought has been so severe that many houses built on clay soils were badly damaged. Evidenced by the many stories of owners helpless faced with the degradation of their property. Cracked facades, deformed door frames, raised paving, weakened foundations… The damage is sometimes such that some houses become uninhabitable. The phenomenon – known as shrinkage-swelling of clays (RGA) – is the result of the retraction of clay soils when it is dry and their swelling when it rains. This causes ground movements likely to destabilize the foundations of the pavilions.

This year, around 100,000 homes have been damaged. Which will cost between 1.6 and 2.4 billion euros for the special regime for natural disasters, announced Thursday the professional federation France Assureurs. Enough to beat the previous one…

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