A shift may be under way ductwork fabrication and commercial and industrial HVAC construction. In some uses, phenolic pre-insulated ducts are replacing those fabricated with galvanized sheet metal.

A Chicago-area contractor celebrated being named the exclusive ductwork fabrication company for a phenolic duct system with a Sept. 18 open house. Sheet Metal Werks of Arlington Heights, Illinois, ...

Pro-R Double Wall is a top market choice for specialty applications like wastewater treatment. Pro-R Double Wall is a pre-insulated phenolic duct solution available nationwide. The Patented Pro-R ...

Pro-R Duct System is the Top Choice for Commercial and Industrial Applications Engineers and Contractors Recommend Pro-R, the Premiere Pre-Insulated Duct System Choice for Outdoor and Indoor ...