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Guides A-Z

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

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 correctly air seal a wall with missing top plates or open wall cavities. 

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 for HVAC equipment.

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

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

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

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

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

Guide describing how to air seal duct and flue shafts. 

Guide describing how to air seal electrical wiring throughout a home.

Guide describing how to air seal around light tubes.

Guide describing how to air seal the gap between the drywall shaft wall (i.e., common wall) and the structural framing between units in multifamily housing.

Guide describing how to air seal around plumbing and other piping.

Guide describing how to air seal around recessed light fixtures. 

Guide describing how to air seal sill plates in new and existing homes.

Guide describing how to air seal a whole-house fan system.

Guide describing how to air seal the rough openings around doors and windows.

Guide providing information about constructing a roof with full insulation at the eaves, and insulating eaves in existing homes.

This guides describes how to insulate and air seal attic knee walls and floor joist cavities under knee walls.

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.

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.

Information guide providing background information about air flow in residential buildings.

Information guide providing background information about moisture flow in residential buildings.

Information guide describing how to calculate ventilation area in existing roofs.

Guide describing how to air seal and insulate a cantilevered floor.

Guide describing how to air seal and insulate a ceiling.

Guide describing a complete window replacement in existing homes.

Guide describing options for designing/locating the thermal boundary in new and existing homes.

Guide describing how to install continuous air barriers in exterior walls.

This guide describes installation procedures for continuous rigid insulation to help provide thermal protection, reduce thermal bridging and provide a moisture barrier. 

This guide describes air barrier and insulation installation, along with air sealing for double walls - half or full walls included in a home design as an architectural feature that provides a more dimensional appearance.

Guide describing how to insulate and air seal dropped ceilings and soffits to prevent air leakage.

Guide describing method for designing and installing ducts in a raised ceiling chase. 

Guide describing how to use a blower door test to determine building envelope air leakage.

This guide provides criteria and installation guidance for ENERGY STAR windows.

Guide describing how to create an air barrier between the garage and the conditioned space above it to prohibit pollutants from entering a home's interior.

Guide describing how to air seal and insulate the floor above an unconditioned basement or crawl space.

Guide describing the air sealing of rim joists on walls connecting homes and attached garages.

Guide describing how to conduct a home performance assessment before beginning retrofit projects in existing homes.

Guide describing how to insert a replacement window in an existing home.

Guide describing how to upgrade a wall with a floor overhang (or cantilever) on an existing home by adding rigid insulating sheating and or closed-cell spray foam insulation 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 install insulation below attic platforms

This guide describes RESNET Grade 1 level installation of insulation in walls, attics, and floors.

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

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