What is the minimum vertical termination height for mechanical draft systems adjacent to walkways?

The minimum vertical termination height for mechanical draft systems adjacent to walkways is set at 7 feet to ensure both safety and compliance with code requirements. This height prevents any interference or potential hazard to pedestrians using the walkway below. It ensures that exhaust gases are dispersed sufficiently high above the ground where people walk, minimizing exposure to harmful emissions and contributing to safe air quality in the vicinity.

Choosing a height of 7 feet aligns with the common guidelines established in building codes, which prioritize public safety around mechanical systems. The specified height helps to alleviate issues related to corrosion, structural concerns, and the effective operation of the mechanical systems by directing exhaust fumes away from areas where people might be present. This adds an essential layer of safety in urban environments where walkways are frequently used by the public.