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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): 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
Publication Date: December, 2010

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

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

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

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

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

Author(s): Steven Winter Associates
Organization(s): Steven Winter Associates
Publication Date: September, 2009

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

Author(s): DOE
Organization(s): DOE
Publication Date: January, 2009
Case study describing a building project in the hot-dry and mixed-dry climate zones.
Author(s): DOE
Organization(s): DOE
Publication Date: January, 2008
Case study describing a building project in the cold and very-cold climate zones.
Author(s): DOE
Organization(s): DOE
Publication Date: January, 2008
Case study describing a building project in the cold and very-cold climate zones.
Author(s): DOE
Organization(s): DOE
Publication Date: January, 2008
Case study describing a building project in the marine climate.
Author(s): DOE
Organization(s): DOE
Publication Date: January, 2008
Case study describing a building project in the cold and very-cold climate zones.
Author(s): DOE
Organization(s): DOE
Publication Date: January, 2008
Case study describing a building project in the mixed-humid climate zone.
Author(s): DOE
Organization(s): DOE
Publication Date: January, 2008

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

Author(s): PNNL
Organization(s): PNNL
Publication Date: December, 2009
Builder's Challenge case study.
Author(s): PNNL
Organization(s): PNNL
Publication Date: December, 2009
Builder's Challenge case study.
Author(s): PNNL
Organization(s): PNNL
Publication Date: December, 2009
Builder's Challenge case study.
Author(s): DOE
Organization(s): DOE
Publication Date: December, 2008

Case study describing building in cold and very cold climates.

Author(s): DOE
Organization(s): DOE
Publication Date: December, 2008

Case study describing a cold/very cold building project in Denver, CO

Author(s): PNNL
Organization(s): PNNL
Publication Date: March, 2015

Building America Optimized Solution in the hot-dry and mixed-dry climate.

Author(s): PNNL
Organization(s): PNNL
Publication Date: March, 2015

Building America Optimized Solution in the marine climate.

Author(s): PNNL
Organization(s): PNNL
Publication Date: March, 2015

Building America Optimized Solution in the mixed-humid climate.

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): CARB, Maryland Energy Administration
Organization(s): DOE
Publication Date: August, 2006

Case study about Chesapeake Habitat for Humanity rehabilitation of five 2-story row houses into energy-efficient, affordable housing.

Author(s): BSC
Organization(s): BSC
Publication Date: July, 2010
Case study about a new construction project designed to achieve an 87% reduction in source energy use when compared to the 2009 Building America Benchmark.
Author(s): BSC
Organization(s): BSC
Publication Date: July, 2010
Case study about a retrofit project designed to show that advanced energy goals could be met today in existing housing.
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 Seattle, WA, that scored HERS 34 without PV. This 2,000 ft2 system home has R-45 double-stud walls, an unvented flat roof with 2 inches of spray foam plus 18 inches blown cellulose, R-42 XPS under slab, triple-pane windows, and a ductless mini-split heat pump.

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

Case study of a DOE Zero Energy Ready in Long Island, NY, that scored HERS 43 without PV. This 5,088 ft2 custom home has R-25 double-stud walls, a vaulted roof with R-40 blown cellulose, R-10 XPS under slab, a hydro air system with 91% efficient boiler for forced air and radiant floor heat, and 100% LED lights.

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 about a DOE Zero Energy Ready Home in Frederick MD that scored HERS 43 without PV, HERS 28 with PV. This 4,516 ft2 custom home comes standard with a geothermal heat pump, SIP walls, spray-foamed unvented roof, and ERV.

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

Case study of a DOE Zero Energy Ready Home in Old Greenwich CT, that scored HERS 42 without PV or HERS 20 with PV. This 2,700 ft2 custom home has advanced framed walls with R-24 blown cellulose plus R-7.5 EPS rigid foam, membrane-coated OSB, a close-cell spray foamed attic, R-13 closed-cell spray foam under the slab and on basement walls, an...

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

Case study about zero energy ready home construction project in the hot-dry climate.

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

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

Author(s): PNNL
Organization(s): PNNL
Publication Date: September, 2017

United Way of Long Island’s Housing Development Corporation built this 3,719-ft2 two–story, 5-bedroom home in Huntington Station, New York, to the rigorous performance requirements of the U.S. Department of Energy's Zero Energy Ready Homes Program.

Author(s): BSC
Organization(s): BSC
Publication Date: November, 2006
Case study describing a building project in Ohio.
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): BA-PIRC
Organization(s): BA-PIRC
Publication Date: October, 2013

Case study describing a multifamily deep energy retrofit project in Annapolis, Maryland.

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

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

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): 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: September, 2009

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

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: September, 2009

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

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): BSC
Organization(s): BSC
Publication Date: February, 2009

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

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

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

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

Case study about new home construction in the mixed-humid climate.

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

Case study about new home construction in the marine climate.

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

Case study about new home construction in the marine climate.

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