building shaft definition
building shaft means a continuous vertical space substantially enclosed on all sides that extends for two or more floors, such as an elevator shaft, a ventilation shaft, a stairwell or a service shaft; (cage d’un bâtiment)
building shaft means a continuous vertical space substantially enclosed on all sides that extends for two or more floors, and includes an elevator shaft, a ventilation shaft, a stairwell and a service shaft;
building shaft means an enclosed vertical opening in a building or structure extending to two or more floors or levels, including an elevator, a ventilation shaft, a stairwell or a service shaft;