Guides A-Z

Guide describing how to insulate a basement to improve the overall thermal performance of the building and provide more dry, usable conditioned space for home occupants and HVAC equipment.

Guide describing how to air-seal attic access panels, doors, and stairs to provide a continuous air barrier at the ceiling.

Guide describing ways to seal drywall to the top plate of an exterior wall to air-seal the wall cavity.

Guide providing guidance on insulating attic eaves in new and existing single-family homes and multifamily buildings.

Guide describing how to insulate and air-seal attic knee walls and floor joist cavities under knee walls.

Guide describing combustion furnaces with selection and installation guidance.

Guide describing condensing boilers and hot water heat distribution systems used for home heating.

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

Guide describing categories of direct-vent combustion space- and water-heating equipment and combustion safety testing.

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

Guide describing gas-fired boilers and hot water heat distribution systems used for home heating.

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 air-sealing of non-ICAT recessed lights installed in accessible attics of existing homes.

Guide describing insulation of piping in exterior walls.

Guide describing installation procedures for combined space and water heating systems.

Guide describing how to install low-e interior storm windows.

Guide describing how to install low-e exterior storm windows.

Guide describing how to apply heavy membranes at eaves in cold climates to help guard against ice dams.

Guide outlining how to retrofit an exterior wall and/or attic to provide continuous air sealing.

Guide describing how to insulate slabs on grade in climate zones 3 and higher.

Guide describing the split system heat pumps used for central forced air heating and cooling.

Guide describing methods for insulating an unvented attic along the roof line.

Guide describing methods for insulating an unvented crawlspace or conditioned basement with rigid foam on the interior side of the walls to provide an insulated space for HVAC equipment.

Guide describing appropriate flooring for wet areas of the home.