What is the minimum ground clearance required for ducting installations?

The minimum ground clearance required for ducting installations is typically set at four inches. This requirement is designed to ensure that ducting is not obstructed by ground-level debris, allows for adequate airflow and prevents potential damage caused by ground-level elements such as water, snow, or pests. A clearance of four inches helps maintain the integrity and efficiency of the ductwork, minimizing problems that may arise from accumulation of materials around or on the ducts. Proper ground clearance is also essential for compliance with local building codes and standards, which aim to promote safety and functionality in mechanical installations.