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Guide describing options for designing and locating the thermal boundary at either the attic floor or along the roof line in new and existing homes.

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 insulate closed crawlspace walls and band joist areas with rigid foam board insulation.

Guide describing wind washing and how to prevent it.

Guide describing how to re-roof an existing home with a sloped and add insulation above the roof deck.

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

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 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.

Guide describing an approach to re-roofing an existing flat roof to improve thermal, water, and air control performance.

Guide describing buried ducts in loose-fill attic insulation, a method that can only be used in dry climates.

Guide describing how to insulate the sill beam or sill plate on the exterior side in a way that allows drying to the exterior, as part of an exterior wall upgrade.

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

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.

Guide describing how to air seal and insulate flex ducts.

Guide describing how to air seal and insulate metal ducts.

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 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 design and installation of compact duct systems for central heating and cooling systems.

Guide describing air-sealing of the seams and holes in HVAC air handler and furnace cabinets.

Guide describing how to thoroughly seal HVAC ducts to ensure air delivery without leakage, and to ensure economical and quiet performance of the HVAC system.

Guide describing insulation techniques for skylight shaft walls.

Guide describing how to air-seal doors that are next to unconditioned spaces.

Guide describing ways to air-seal an attached garage in new and existing homes.