Full Scale Mass Timber Shaft Demonstration Fire – Final Report

A large-scale fire demonstration was conducted to observe and validate the fire safety performance of a cross-laminated timber stair-elevator shaft as an alternative solution to a shaft of noncombustible construction for the now-completed 13-storey residential mass timber building project – Origine in Quebec City. The results demonstrated that the severe, high-intensity fast growing fire in the adjacent apartment had no impact on the mass timber stair/elevator shaft; the conditions inside the shaft were unchanged before, during and after the fire.