Guides A-Z

Guide describing how to properly test the air barrier between the garage and house, and how to ensure the air barrier is tight enough to prevent garage air from entering the home.

Guide describing how to air seal bathroom and kitchen exhaust fans.

Guide describing how to install back-draft dampers in exhaust fans to make a shared duct possible.

Guide describing how to install a bathroom fan to remove excess moisture, cleaning chemical fumes, etc.

Guide describing the bathroom exhaust fan ENERGY STAR rating requirements.

Guide describing how to add spray foam insulation to the underside of the existing roof deck as part of the conversion of a vented attic to an unvented, insulated attic.

Guide describing how to insulate a vented attic in an existing home using blown insulation added to the attic floor.

Guide describing how to choose and install a carbon monoxide alarm.

Guide describing correct ducting for exhaust fans.

Guide describing how to select low-sone supply and exhaust fans for quiet, continuous operation.

Guide describing how to install continuously operating exhaust fans.

Guide describing the installation of roof vents that are resistant to damage from high winds and entry of wind-borne rain, wildfire embers, or pests.

Guide describing how to upgrade or expand an existing HVAC system.

Guide describing how to choose ENERGY STAR fans.

Guide describing how to install efficient kitchen exhaust systems.

Kitchen exhaust ventilation, properly ducted to the outside, is an essential component of good indoor air quality (Figure 1). Research has identified kitchens as the primary location where most harmful pollutants are generated in the home. During the cooking process, moisture and pollutants are...

Guide describing how to install an exhaust fan in an attached garage to pull fumes out of the garage and to depressurize the garage with reference to the home.

Guide describing how to correctly vent a clothes dryer.

Guide describing a method for insulating an unvented attic by spraying foam insulation along the underside of the roof deck.

Guide describing how to install ventilation air inlets in open locations at a safe distance from potential air contamination sources.

Guide describing how to select and install whole-house ventilation systems for existing homes.

This guide describes how to install a whole-building ventilation system to provide adequate dilution of indoor air contaminants.