What height is required for Type 1 exhaust termination above a roof?

The correct height requirement for Type 1 exhaust termination above a roof is 40 inches. This standard is established to ensure that exhaust gases are effectively dispersed and do not re-enter the building or affect nearby structures. The elevation helps to avoid potential safety hazards and minimizes the risk of compromising air quality.

Having the exhaust outlet at this specified height also assists in preventing the accumulation of potentially harmful exhaust vapors and obstructions caused by roof structures or nearby parapets, facilitating better ventilation performance. Compliance with these regulations is crucial for safety and efficiency in HVAC systems, ensuring they operate within proper guidelines established by building codes and safety regulations.