If you live in a cold climate like Minnesota, I recommend plastic. Why would someone want metal? It gives you a smooth interior, which means less air turbulence, which means more airflow. The end.

Park Hill Baptist saved upwards of $100,000 on its duct retrofit and is also experiencing improved environmental conditions for its occupants FIGURE 1: A FabricAir system was chosen for Park Hill ...

The Lindab Safe® self-sealing spiral sheet metal duct system features fittings with factory-installed, double-lipped, EPDM rubber gaskets. When the fittings are slipped into the spiral duct, the ...

But what workers hate is not the air-conditioning itself. It’s the way that air-conditioning is distributed: through snaking overhead tunnels of metal ductwork and out the end of just a few vents ...

We asked HVAC professionals how often you should clean your air ducts. They gave us the details on cleaning frequency, ...