What is the purpose of having smooth inner walls in ductwork for exhaust systems?

The purpose of having smooth inner walls in ductwork for exhaust systems is primarily to enhance airflow. Smooth surfaces reduce friction and turbulence as air moves through the ducts. This allows for a more efficient passage of air, minimizing energy loss and ensuring that exhaust systems can effectively remove air from a space. When airflow is enhanced, systems can operate more effectively, helping to maintain necessary air quality and temperature control.

While factors like noise reduction, durability, and flexibility are important in ductwork design, the core function of smooth inner walls is to promote optimal airflow, which directly impacts the performance and efficiency of the exhaust system.