Lightning fell on the aluminium building of a furniture factory and caused a fire to break out. After piercing the roof, the lightning propagated to the electrical circuits of the company’s 12 varnishing booths. Three of them went up in flames. The powder-based fire safety system activated and was able to contain the fire outbreak until fire-fighters arrived on the scene. Thanks to the presence of a fire wall, the blaze could be controlled within 2 hours. The 1,200 m² of roofing were all damaged as were 420 m² of factory premises. The three booths and a varnishing line were shut down. Property damage and production losses amounted to 4.9 million francs.