Fiberglass Duct Liner Webinar Recording Now Available

Watch the recently held webinar, Fiberglass Duct Liner for Efficient & Quiet HVAC Systems.

SMACNA’s recent webinar, Fiberglass Duct Liner for Efficient & Quiet HVAC Systems, explains the different types of insulation materials used for lining the interior of mechanical duct systems, their overall performance qualities, and how to improve project specifications for mechanical air delivery systems by tying specifications together to facilitate project performance goals better.

Webinar presenter William “Buddy” Combs, Specification Specialist at SMACNA Platinum Associate Member company, Knauf Insulation, has over 35 years of experience in all aspects of owner’s representation in the building delivery process, including Architecture, engineering, specifications, project management, construction, governmental and code compliance.

Watch this webinar.


Apr 10, 2024 Member Update

Latest Articles


Supervisor Training Academy Graduates on Their Way to Success!

Mar 25, 2026 - We are thrilled to recognize and celebrate the accomplishments of the latest Supervisor Training Academy (STA) graduates


Early Bird Rate for the SMACNA Leadership Conference Ends April 1

Mar 25, 2026 - This high-impact conference focuses on the federal policies most important to SMACNA contractors and provides an opportunity to receive training in effective advocacy techniques.


SMACNA Recognized for Excellence in Video

Mar 25, 2026 - Ragan Communications awards SMACNA five Honorable Mentions in their 2025 Video, Visual & Virtual Awards.