Considering the cost and availability of sheet metal, is it time to consider giving our phenolic ductwork a try?

Koolduct, built to size, will cost you about $7/square foot, plus freight. The cost of metal sheeting alone is over $1/sq ft, and that’s assuming you can get it.

Why try it?

  • It’s light, about 1/5 the weight of metal ducting.
  • It doesn’t leak, leakage Class 3.
  • Mount it right up to the ceiling.
  • It’s a listed UL181 duct system.
  • It’s a union made yellow label product.
  • It installs FAST
  • You don’t need an insulator. ?

Some images below are there to capture your imagination.



Until next time


Tom Gelin
Air Flow Inc.
8355 West Bradley Road
Milwaukee, WI 53223


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