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Case Studies

This library contains research reports produced by the Building America program and other building science resources used to support this Solution Center. The materials cover both new construction and existing homes. Use the search box and/or the filters to explore hundreds of residential building resources. Access to some references not produced by Building America may require purchase from the publisher. Documents are listed alphabetically. While we continually update our database, links may have changed since posting. Please contact our webmaster if you find broken links.

Author(s): Less, Walker
Organization(s): LBNL
Publication Date: August, 2014

Report including testing and analysis of deep energy retrofits of existing single-family homes in the U.S.

Author(s): Logue, Turner, Walker, Singer
Organization(s): LBNL
Publication Date: August, 2015
Changing the air exchange rate of a home (the sum of the infiltration and mechanical ventilation airflow rates) affects the annual thermal conditioning energy. Large-scale changes to air exchange rates of the housing stock can significantly alter the residential sectorÕs energy consumption. However, the complexity of existing residential energy...
Author(s): BSC
Organization(s): BSC
Publication Date: April, 2010
Case study describing a retrofit project in the cold and very-cold climate zones.
Author(s): PNNL
Organization(s): PNNL, BSC, NREL
Publication Date: December, 2010

Case study describing a multi-family town home project constructed for the City of Aspen, Colorado, with assistance from the U.S. DOE Building America research team Building Science Corporation and the National Renewable Energy Laboratory.

Author(s): BSC
Organization(s): BSC
Publication Date: July, 2010

Case study describing project conducted by Habitat for Humanity of Greater Lowell (HfHGL) and Building Science Corporation (BSC).

Author(s): BSC
Organization(s): BSC
Publication Date: July, 2012

Case study of a Concord four-square home retrofitted by Building Science Corporation in Massachusetts.

Author(s): BA-PIRC, FSEC
Organization(s): BA-PIRC, FSEC
Publication Date: April, 2015
Author(s): PNNL
Organization(s): LBNL, PARR, PNNL
Publication Date: December, 2014

Case study describing a DOE 2014 top innovation on development of a standardized testing method for testing the air leakage of HVAC air handlers and furnace cabinets developed by Lawrence Berkeley National Laboratory.

Author(s): PNNL, ORNL
Organization(s): PNNL, ORNL
Publication Date: December, 2010

Case study about a 20-unit community of energy-efficient duplexes in Massachusetts that incorporated solar water heating and photovoltaics.

Author(s): Brand, Cautley, Bohac, Francisco, Shen, Gloss
Organization(s): NREL
Publication Date: November, 2015
Report on comubsion safety simplified test protocol.
Author(s): Less, Walker
Organization(s): LBNL
Publication Date: August, 2015

Guidance document on deep energy retrofits.

Author(s): PNNL
Organization(s): PNNL
Publication Date: September, 2013

Case study of a DOE Zero Energy Ready Home in west Connecticut that scored HERS 39 without solar PV. The 3,000 ft2 two-story home has R-33 double-walls, R-72 flat roof with closed-cell foam and blown cellulose, an ERV, and LED lighting.

Author(s): PNNL
Organization(s): PNNL
Publication Date: September, 2013

Case study about a Zero Energy Ready Home construction project in the marine climate.

Author(s): PNNL
Organization(s): PNNL
Publication Date: September, 2013

Case study of a DOE Zero Energy Ready Home in Herriman, UT, that scored HERS 40 without PV, -1 with PV. This 4,111 ft2 production home has R-23 advanced framed walls, and a vented attic with R-60 blown fiberglass.

Author(s): PNNL
Organization(s): PNNL
Publication Date: October, 2013

Case study of a DOE Zero Energy Ready Home in Ithaca, NY, that scored HERS 50 without PV. These 1,160 ft2 affordable town houses have R-20 advance framed walls, R-52 blown cellulose in attic, radiant heat with 92.5 AFUE boiler, and triple-pane windows.

Author(s): PNNL
Organization(s): PNNL
Publication Date: September, 2013

Case study of a DOE Zero Energy Ready Home in Phoenix AZ that scored HERS 58 without PV or HERS 38 with PV. This 1,700 ft2 affordable home has R-21 framed walls, a sealed closed-cell spray foamed attic, an air-source heat pump with forced air, and a solar combo system that provides PV, hot water, and space heating.

Author(s): PNNL
Organization(s): PNNL
Publication Date: September, 2013

Case study of a DOE Zero Energy Ready Home in Downers Grove IL that scored HERS 35 without PV. This 3,600 ft2 custom home has advanced framed walls with R-23 dense-packed fiberglass plus R-13 rigid polyiso, a sealed attic with open-cell spray foam, a pier foundation, and 95% efficient gas furnace.

Author(s): PNNL
Organization(s): PNNL
Publication Date: September, 2013

Case study describing a 4,763 ft2 certified Passive House that achieved HERS 27 without PV through the construction of R-54 walls that use ICF plus fiberglass cavity insulation, an R-100 vented attic, extensive air sealing and flashing, triple-pane windows, ductless heat pumps, and solar hot water.

Author(s): PNNL
Organization(s): PNNL
Publication Date: September, 2014

Case study about a DOE 2014 Housing Innovation Award winner.

Author(s): PNNL
Organization(s): PNNL
Publication Date: September, 2014

Case study about a DOE 2014 Housing Innovation Award winner.

Author(s): Chan, Walker, Sherman
Organization(s): LBNL
Publication Date: August, 2015
Report on how airtighness changes as houses age.
Author(s): PNNL
Organization(s): PNNL
Publication Date: September, 2009

Case study about approaches to comprehensive retrofits that are in reach of the ordinary builder.

Author(s): PNNL
Organization(s): PNNL
Publication Date: June, 2013

Case study about one of three deep energy renovations of occupied affordable homes.

Author(s): PNNL
Organization(s): PNNL
Publication Date: September, 2009

Case study describing a retrofit project in Maryland.

Author(s): PNNL
Organization(s): PNNL
Publication Date: December, 2011

Case study about a whole-house, deep energy retrofit project in the marine climate.

Author(s): PNNL
Organization(s): PNNL
Publication Date: December, 2011

Case study about a deep energy renovation of a home in the marine climate.

Author(s): CARB
Organization(s): CARB
Publication Date: November, 2013

Case study about a multifamily retrofit project in a cold climate.

Author(s): PNNL
Organization(s): PNNL
Publication Date: September, 2009

Case study describing a retrofit project in the hot-dry and mixed-dry climate zones.

Author(s): BA-PIRC
Organization(s): BA-PIRC
Publication Date: November, 2013

Case study about a multifamily, affordable housing retrofit project that achieved 44% energy savings using readily available, cost effective measures.

Author(s): PNNL
Organization(s): PNNL
Publication Date: January, 2012

Case study about an energy efficient retrofit project in hot-humid climates.

Author(s): PNNL
Organization(s): PNNL
Publication Date: December, 2011

Case study about cost-effectively reducing energy use by over 50% in an existing home.

Author(s): BSC
Organization(s): BSC
Publication Date: March, 2010

Case study describing a retrofit project in the cold and very-cold climate zones.

Author(s): PNNL
Organization(s): PNNL
Publication Date: December, 2011

Case study about an energy efficient renovation in the cold climate.

Author(s): PNNL
Organization(s): PNNL
Publication Date: March, 2011

Case study describing a retrofit project in the marine climate.

Author(s): PNNL
Organization(s): PNNL
Publication Date: October, 2010

Case study describing a retrofit project in the hot-dry climate.

Author(s): PNNL
Organization(s): PNNL
Publication Date: October, 2010

Case study describing a retrofit project in the hot-dry climate.

Author(s): Harrington, Springer
Organization(s): ARBI
Publication Date: September, 2015
Report presenting the results from several demonstrations of a new method for sealing building envelop air leaks.
Author(s): BSC
Organization(s): BSC
Publication Date: June, 2010

Case study describing a building project in the cold and very-cold climate zones.

Author(s): DOE
Organization(s): DOE
Publication Date: January, 2011

Case study about a builder in Texas that met the stringent requirements of the U.S. Department of Energy's Builders Challenge on over 779 homes in 2010.

Author(s): Less, Mullen, Singer, Walker
Organization(s): LBNL
Publication Date: August, 2015
This research study used pollutant measurements, home inspections, diagnostic testing and occupant surveys to assess IAQ in 24 new or deeply retrofitted homes designed to be high performance green buildings in California.
Author(s): Rose, Francisco, Merrin
Organization(s): PARR
Publication Date: October, 2015
Report on the impact of air sealing between the foundation and the living space on radon transport reduction across the foundation and living space floor assembly at fifteen home.
Author(s): BSC
Organization(s): BSC
Publication Date: February, 2009

Case study describing a building project in the hot-humid climate zone.

Author(s): BSC
Organization(s): BSC
Publication Date: January, 2010

Case study describing a building project in the hot-humid climate zone.

Author(s): PNNL
Organization(s): PNNL
Publication Date: February, 2013

Case study describing a builder's technology package that achieves energy savings of 50% over standard practice compared to the 2006 IECC.

Author(s): BSC
Organization(s): BSC
Publication Date: September, 2010

Case study describing a building project in the mixed-humid climate zone.

Author(s): PNNL
Organization(s): PNNL
Publication Date: November, 2013

Case study about two new construction projects in Florida built to be net zero energy homes.

Author(s): BSC
Organization(s): BSC
Publication Date: April, 2009

Case study describing a building project in the hot-humid climate zone.

Author(s): BSC
Organization(s): BSC
Publication Date: July, 2010

Case study describing a building project in the hot-humid climate zone.

Author(s): Zoeller, Williamson, Puttagunta
Organization(s): CARB
Publication Date: August, 2015
Report on hybrid ventilation methods for insulated and sealed crawl spaces.
Publication Date: July, 2015

Case study on air sealing building enclosures using aerosolized sealant.

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