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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): 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): 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): Herk, Beggs
Organization(s): IBACOS
Publication Date: February, 2016
Report outlining the steps developers can take to create high-performance standards on a community-wide scale.
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): CARB
Organization(s): CARB
Publication Date: November, 2013

Case study describing a gut rehab of a multifamily, masonry building.

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): CARB
Organization(s): CARB
Publication Date: December, 2014

Case study about a deep energy retrofit, turning an old school into 12 high-end apartments in Greenfield, MA.

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

Case study about a multifamily retrofit project in a cold 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): BSC
Organization(s): BSC
Publication Date: November, 2013

Case study about a multifamily retrofit project using individual heat recovery ventilators in 10 separate building units.

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

Case study about 50% energy savings projects for new multifamily homes in cold climates.

Publication Date: September, 2015
Case study on the first multifamily projecte nationwide to be certified under the U.S. Department of Energy's Zero Energy Ready Home program.
Publication Date: July, 2015

Case study on air sealing building enclosures using aerosolized sealant.

Publication Date: February, 2016
Case study on an effort to improve indoor air quality in high-performance, new construction, mutlifamily buildings, dedicated sources of outdoor air.
Publication Date: August, 2015
Report on low-load options in heating, ventilation, and air conditioning equipment used in multifamily homes.
Author(s): CARB
Organization(s): CARB
Publication Date: November, 2013

Case study about maximizing efficiency of hydronic systems in single and multifamily buildings.

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

Case study about measuring envelope leakage in multifamily buildings.

Author(s): ARIES
Organization(s): ARIES
Publication Date: May, 2014

Case study about the benefits of replacing resistance heating systems with mini-split heat pumps in cold and mixed-humid climates.

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

Case study about steam system balancing in multifamily housing.

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

Case study that identifies best practices, costs, and savings associated with balancing steam distribution systems through increased main line air venting, radiator vent replacement, and boiler control system upgrades.

Author(s): ARIES
Organization(s): ARIES
Publication Date: November, 2014

Case study describing a heating system retrofit in an existing apartment building complex which included advanced boiler controls and reduced heating gas consumption by about 20%.

Author(s): Springer, Seitzler, Backman, Weitzel
Organization(s): ARBI
Publication Date: October, 2015

Report on energy use for domestic water heating in multifamily buildings.