Benefits of Mechanical Shaft Ventilation Systems
One of the primary benefits of a mechanical extract shaft is that it requires less space on each floor of the buildings. A BRE shaft, used for Natural Shaft Ventilation would typically require a shaft of 3m2 running vertically from the bottom of the building to the roof while a mechanical extract shaft would only require a shaft with an area of 0.6m2. This represents an 80% reduction in required floor space required for the shaft on each floor, and on the rooftop. These systems are also multifunctional as they can be used for daily environmental ventilation as well as smoke control, potentially negating the need for additional dedicated ventilators, allowing building owners to make cost savings.