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Guide describing how to correctly vent a clothes dryer to direct exhaust air out of the home.

Guide describing how to increase insulation in existing homes by installing batt insulation on the ceiling plane of a vented attic.

Guide describing how to air-seal and insulate a ceiling where the insulation is installed on top of the ceiling (on the attic floor) in a vented attic.

Guide describing how to provide combustion air for fireplaces and how to test fireplaces for combustion safety.

Guide describing combustion furnaces with selection and installation guidance.

Guide describing how to conduct testing for adequate combustion air in the space where a combustion appliance is located if the appliance is located within the conditioned space of the home.

Guide describing the installation of a tankless hot water heater to provide domestic hot water that is heated on demand without the standby losses associated with tank storage water heaters.

Guide describing principles of insulating and air sealing band joists as a stand alone energy upgrade, or as part of creating a closed crawlspace.

This guide describes evaporative cooling technologies which can be used to cool homes in dry climates.

Guide describing how to insulate closed crawlspace walls and band joist areas with rigid foam board insulation.

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 the installation of insulating sheathing above the roof deck on existing homes. This retrofit assembly is appropriate for homes with conditioned attics or where the retrofit is intended to create a conditioned attic.

Guide describing how to install a bathroom exhaust fan to remove excess moisture.

Guide describing how to install an efficient kitchen exhaust fan.

Guide describing how ice dams form and how roofs can be constructed to prevent them.

Guide describing how to install flashing that is integrated with air and water control layers around piping, vents, and other wall penetrations as part of an exterior wall retrofit.

Guide describing how to improve boiler efficiency in multifamily central hydronic heating systems by installing thermostatically controlled radiator valves (TRV) to reduce temperatures in overheated spaces.

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

Guide describing condensing clothes dryers, which have a secondary heat exchanger and do not require exterior venting.

Guide describing how to provide a continuous water control layer across the roof assembly by sealing all penetrations for pipes, vents, etc. in existing roofs.

Guide describing method for insulating an unvented crawlspace or conditioned basement with rigid foam on the interior side of the walls.

Guide describing how to retrofit an existing basement floor or slab to reduce moisture issues.

Guide describing ways builders can block off entry points and otherwise make homes inhospitable to all manner of pests.