SMACNA duct construction classes define the fabrication requirements that make ductwork structurally

Every rotating HVAC component generates vibration. Most of the time, that is acceptable. The problem

HVAC duct fittings connect, redirect, branch, reduce, and terminate duct runs. Common types include

Choosing the right HVAC duct seam is not only a fabrication detail. It affects duct strength, assemb

Ductwork rarely gets the same attention as the air handler or chiller, yet it decides how much of th

Ductwork determines whether an HVAC system performs the way it was designed to. A correctly sized ai