Delta Air Systems has worked with phenolic duct systems for more than two decades. Our experience began with the Knauf KoolDuct system, which later became Kingspan KoolDuct. As contractors who used phenolic ductwork in every day life, we developed practical methods, trained crews, improved fabrication processes, and learned how to help other contractors successfully add phenolic ductwork to their capabilities. That experience now supports our transition to Thermatuff® phenolic materials, giving contractors access to a new field ready panel backed by the knowledge, training, and fabrication support we have developed over years of working with phenolic duct systems.

From our facilities in both Perrysburg and Napoleon, Ohio, Delta Air Systems provides hands-on training in estimating, fabrication, and installation for Thermatuff® pre-insulated ductwork and phenolic duct liner applications. We help contractors take a project from initial takeoff through fabrication and field installation using tools, processes, and automation that will feel familiar to experienced sheet metal shops. Whether your goal is to fabricate complete insulated duct systems, incorporate mechanically retained phenolic liner into sheet metal ductwork, or add another capability to your shop, our team can help you build the knowledge and confidence needed to get started.