The HVAC contractor that wants to provide the best-suited ventilation solutions for building owners should be adept in both sheet metal duct and fabric duct, or fabric air dispersion as it’s commonly ...

If you live in a cold climate like Minnesota, I recommend plastic. Why would someone want metal? It gives you a smooth interior, which means less air turbulence, which means more airflow. The end.

Round spiral duct forms the backbone of the most efficient means of creating a metal duct system. From initial planning through final installation and on to efficient operation by the customer, round ...