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.
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.
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.
Pre-Retrofit Assessment of Ventilation Systems Description Guide describing how to evaluate existing ventilations systems before performing home upgrades.
Whole House Ventilation Strategies for Existing Homes Description Guide describing how to select and install whole-house ventilation systems for existing homes.
Whole-House Dehumidification Description Guide describing options for adding dehumidification equipment to a home to maintain indoor relative humidity below 60%.