Presentation of the operation: Follow-up of the emergency measures following the hail storm: tarpaulin- replacement of the skydoms, rusting of the waterproofing Resection of the sealing by tearing off and complete recovery of the insulation-sealing complex on 7 warehouses ( 127,000 m²) Resealing of the waterproofing by implementation of an additional PVC membrane on 6 warehouses (75,000m²) Work done in occupied sites