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Lookup Value?: Exterior Duct-Work is Insulated

From Lookup Field?: ConstructionMaterials Lookups

Definition (May contain conditions that must apply)

DOE estimates that heating and cooling ducts located in unconditioned spaces such as attics and garages can underperform by 60–75 percent. Exterior ducts that are properly insulated can save energy and reduce overall equipment sizing. Insulation standards are clearly defined:


Page Revision Date: Nov 29 2016

Form: LookupValue


  1. 5/10/16 - Addition per DOC/Stukel/BEDES Initiative
  2. 6/21/16 BOD Approval. Set to Active.