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Fact sheet describing air-sealing concerns and remedies, including HRV/ERV installation, caulking, spray foam, and weatherstrip installation.

Report identifying two barriers that limit the ability of builders to explore opportunities for higher levels of energy efficiency in housing: the use of duct system materials that inherently achieve airtightness and are right-sized for low-load houses, and, the ability to air seal fire separation...

Article describing how insulating and air sealing unfinished attic spaces can lead to reduced energy bills in some homes.

Report describing the sealing and insulating of HVAC duct systems in existing homes.

Brochure with details on HVAC duct air sealing.

Report describing two retrofit duct sealing techniques - manually-applied sealants and injecting a spray sealant, that were implemented in several low-rise multi-unit buildings in North Carolina.

Fact sheet describing a novel, simplified air delivery system using a plug-and-play model that features 3-inch diameter flexible ducts, efficient fittings, and a simplified installation process that resulted in successful market engagement through commercialization.

Manual that identifies certain leakage limits for ducts and outlines procedures for testing ducts for conformity with air leakage limits that are set forth in a designer’s project specification.

This ANSI/RESNET/ICC standard provides a consistent, uniform methodology for evaluating the airtightness of building, dwelling unit, and sleeping unit enclosures and heating and cooling air distribution systems, and the air flows of mechanical ventilation systems.

Information sheet about proper ventilation and air sealing.

Report about City of Meriden Housing Authority's (MHA) collaboration with Jonathon Rose Companies to complete a gut renovation of 126 residential units in the Chamberlain Heights retrofit project.

Information sheet with HVAC duct insulation, testing, maintenance and performance information.

Guide providing information on controlling attic ductwork sweating.

Fact sheet describing building envelope performance measures applicable to residential and small commercial construction.

Information sheet about buried ducts.

Report evaluating opportunities to improve and streamline delivery of residential retrofit measures.

Report about cost effective energy-efficient upgrades that can be implemented in the hot, dry Southwest climate.

Research study about a high performance retrofit of an existing brick building (a former convent) into condominiums, all affordable housing.

Case study about Artistic Homes of Albuquerque, New Mexico, the first home builder in the United States to offer true net zero energy construction to the average home buyer on every home it builds.

Manual showing duct cleaning contractors how to identify the different types of insulated air ducts, how to open each type for access by cleaning equipment and personnel, how to close and seal openings after cleaning.

Report describing the design and construction of a highly energy efficient community of ten duplexes in Greenfield, Massachusetts.

Conference paper making the case that moving ducts to conditioned space saves energy, is practical for production builders (when accompanied by careful pre-planning), and creates significant andmarketable energy savings for homebuyers.