Thermaduct®'s experience with phenolic duct systems began more than twenty years ago in 2004, when pre-insulated phenolic ductwork was first being introduced into North American commercial HVAC applications. While the material offered significant advantages in thermal performance and weight, successful implementation depended on more than simply replacing sheet metal with insulated panels. Long-term performance required practical fabrication methods, structural reinforcement, and installation practices that contractors could confidently apply in the field.

By 2009, we were helping other contractors bring this technology into their facilities and growing the pre-insulated duct market with others who also saw the benefits of phenolic. As we grew our focus remained the same: a continued push for HVAC energy efficiency.

In 2011, our developments in bringing phenolic outdoors with a variety of claddings led us to our factory laminated vinyl solution, Thermaduct®. By permanently bonding our 1000 micron vinyl clad to our phenolic panel, we were able to create a stronger solution that gave many benefits for outdoor applications compared to pressure applied claddings. With our patented process, we are able to thermally bend up to 3 corners with no seam and use solvent welds on the final seam. This eliminates areas of water intrusion and provides a better solution for outdoor applications.

Since that time, we’ve only made our product better with our patented reinforcement system, Airtruss®, that goes beyond what the SMACNA Phenolic Duct Construction standards require. We’ve also developed our own phenolic panels for rectangular, round and flat oval solutions for both outdoor and indoor applications, all offering the same high R-values and low air leakage.

That same philosophy of continuous improvement led to the development of Thermatuff®. Drawing upon more than two decades of fabrication and field experience, Thermatuff® was engineered to address areas where traditional phenolic materials could be improved. The result is a phenolic insulation panel featuring thicker 80-micron aluminum facings, a fully encapsulated non-perforated construction, and improved consistency for both pre-insulated duct systems and mechanically retained liner applications.

With over 20 years of experience behind us, Thermaduct® is proud to offer our line of high efficiency air distribution products to customers across the US and Canada.