CHANTILLY, Va. — The Sheet Metal and Air Conditioning Contractors’ National Association (SMACNA) announced that the American National Standards Institute (ANSI) has approved its HVAC Air Duct Leakage ...
The International Code Council (ICC) has passed a proposal that will require more duct testing in an effort to combat duct leakage, conserve energy, and reduce utility bills. While the desired end ...
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