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Is duct sealing required when space conditioning equipment is replaced in commercial buildings also?

April 26, 2017buildings Commercial conditioning duct equipment sealing

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Is duct sealing required when space conditioning equipment is replaced in commercial buildings also?

1 Answer

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10 Posted

Yes, in some cases. When single zone space conditioning equipment is replaced and when at least 25% of the ducts are installed outside of the building or in unconditioned space (above an insulated drop or sheetrock ceiling), duct sealing requirements must be met.