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Keywords: Drywall shaft damage.jpg Mechanical shaft with fire-resistance rated drywall - damaged through installation of mechanical services Vancouver British Columbia Canada Left unrepaired the wall has no fire-resistance rating thus damaging the entire fire protection plan for the occupancy Own 2007-03-11 Achim Hering 06 08 11 March 2007 UTC Plumbing Firestops Drywalls Shafts Building code violations Compromised drywall |