Case Study: Installation of FireBarrier ® 135 in Verla Di Giovo Tunnel, ItalyThe challenge The Verla Di Giovo tunnel, near Trento in Italy, was the first tunnel in the European Union to use a false wall constructed from corrugated stainless steel, to create a space running along the side of the tunnel to serve as both a ventilation shaft and escape route. Furthermore, the external face of the steel wall formed an interior wall of the tunnel

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