Building Science Introduction - Air Flow Description Information guide providing background information about air flow in residential buildings.
Kitchen Exhaust Retrofit Duct Guide Description Guide describing the retrofit of kitchen exhaust systems, including duct sizing and routing considerations.
Pre-Retrofit Assessment of Combustion Appliances Description Information guide describing things to consider before attempting retrofits including any combustion appliances, or that may affect them.
Pre-Retrofit Assessment of Existing HVAC Systems Description Information guide describing considerations for before retrofitting HVAC systems, retrofit scope considerations, and HVAC system replacement options.
Pre-Retrofit Assessment of Ventilation Systems Description Guide describing how to evaluate existing ventilations systems before performing home upgrades.
Sealed and Insulated Flex Ducts Description Guide describing how to air seal and insulate flex ducts.
Ventilation Air Inlet Locations Description Guide describing how to install ventilation air inlets in open locations at a safe distance from potential air contamination sources.
Whole House Ventilation Strategies for Existing Homes Description Guide describing how to select and install whole-house ventilation systems for existing homes.
Whole-House Fans Description Guide describing the types of whole-house fans, installation details to reduce energy loss, and how to operate them for comfort and energy savings based on climate zone.