Guides A-Z

This guide describes IECC 2009 and 2012 and ENERGY STAR Certified Homes insulation requirements.

This guide describes IECC 2015 and DOE Zero Energy Ready Home insulation requirements.

This measure guide describes the need to install a dedicated dual-pole circuit breaker for a future solar photovoltaic installation.

Guide describing refrigerant-based compression-cooling air conditioning systems for space cooling.

Guide describing application of a radiant barrier layer in the attic to block radiant heat transfer between hot surfaces and heat-absorbing surfaces.

Guide describing how to achieve RESNET Grade 1 installation standards, and meet/exceed code using batt insulation in existing walls.

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 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 blown insulation into exterior wall cavities of existing homes with minimal disruption to occupants.

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

Guide describing the use of building cavities as supply or return ducts.

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

Guide describing effective ways to distribute hot water using either a core (compact) plumbing layout or a central homerun manifold piping system.

Guide describing how to repair or replace skylights in existing homes.

Guide describing how to insulate a new foundation wall or an existing foundation wall by adding rigid insulation to the exterior side.

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 how to insulate a floor over unconditioned space with conditioned space above by adding insulation and air-sealing.

Guide describing how to upgrade a wall with a floor overhang (or cantilever) on an existing home by adding insulation (rigid insulating sheathing and/or closed-cell spray foam) and air-sealing.

Guide with information about how to upgrade a garage ceiling when a portion of the interior of the house is located directly above the attached garage by adding insulation and air sealing.

Guide describing how to upgrade a crawlspace floor in an existing home by adding insulation.

Guide describing RESNET Grade 1 level installation of insulation in walls, attics, and floors.

Guide describing water metering in multi-family buildings.

Guide describing how to design HVAC systems to be located within the conditioned space of the home, either in a utility closet or in an air sealed conditioned attic, basement, or crawl space.