Question 16369 — natural disasters

Summary

Mr. Alexandre Dufosset draws the attention of the Minister of Ecological Transition, Biodiversity and International Negotiations on Climate and Nature to the consequences of the intensification of heatwave and drought episodes on the phenomenon of shrinkage-swelling of clays. This phenomenon, caused by the alternation between periods of intense drought, during which clayey soils shrink, and periods of rehydration, during which they swell, weakens many professional buildings and individual homes. It leads to the appearance of cracks, structural damage and, in the most serious cases, a significant deterioration in the safety and heritage value of the housing and buildings concerned. In the 18th district of the North, several municipalities are exposed to this risk, particularly around Cambrai, Cateau-Cambrésis, Clary and Marcoing. The Nord department is also one of the territories selected for the experimentation of the Clay Prevention Fund, intended to finance vulnerability diagnostics, support for owners and prevention work such as rainwater management, control of soil humidity around foundations, treatment of buried networks or adaptation of vegetation to proximity to buildings and homes. However, as heatwave episodes become earlier, more frequent and more intense, many owners continue to face complex procedures, high costs and uncertainty over their eligibility for aid. However, prevention appears essential to prevent cracks and structural damage affecting buildings and homes from worsening and that households do not find themselves alone facing particularly heavy repair work. Also, he asks him if the Government intends, in view of the worsening risk linked to heat waves and repeated droughts, to perpetuate and extend the Clay Prevention Fund and to examine, within the framework of the credits of the 181 Risk Prevention program and the action dedicated to the shrinkage-swelling of clays, the conditions for strengthening targeted aid granted to the most exposed households, while improving support for the owners concerned, particularly in the exposed areas of Cambrésis and Caudrésis-Catésis.

Machine translation from French. The official text remains authoritative.

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