Ducts Buried in Attic Insulation and Encapsulated Description Guide describing approaches to burying and encapsulating ducts in unconditioned attics to increase the overall R-value of duct insulation.
Unvented Conditioned Attic with Spray Foam Insulation Below Roof Deck Description Guide describing a method for insulating an unvented attic by spraying foam insulation along the underside of the roof deck.
Encapsulated Ducts Description Guide that illustrates how and when to encapsulate ductwork in unconditioned attics, increases the R-value of duct insulation, mitigating condensation issues and reducing air leakage.
New Whole-House Solutions Case Study: Insight Homes: Deep Creek, Seaford, Delaware Author(s) Pacific Northwest National Laboratory Organization(s) PNNL Publication Date April, 2012 Description Case study describing a home builder that has refined its home designs to achieve HERS scores of 49 to 56 on 40 to 70 homes per year.
Building Cavities Not Used as Supply or Return Ducts Description Guide describing the use of building cavities as supply or return ducts.
Building Science Introduction - Air Flow Description Information guide providing background information about air flow in residential buildings.