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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: 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): Steven Winter Associates
Organization(s): CARB, Steven Winter Associates
Publication Date: February, 2009

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

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): NREL
Organization(s): NREL
Publication Date: December, 2003

Case study describing a building project in the marine climate.

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.
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): Turner, Roux, Walker
Organization(s): LBNL
Publication Date: August, 2015
This study used an advanced airflow, energy and humidity modeling tool to evaluate the potential for residential mechanical pre-scooling strategies to reduce peak electriciy demand.
Author(s): Puttagunta
Organization(s): CARB
Publication Date: July, 2015
Report on air-sealing programs for energy-efficiency retrofits.
Author(s): Zoeller, Williamson, Puttagunta
Organization(s): CARB
Publication Date: August, 2015
Report on hybrid ventilation methods for insulated and sealed crawl spaces.
Author(s): DOE
Organization(s): DOE
Publication Date: November, 2004

Case study describing the New American Home project.

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

Case study describing how combination (combi) space and water heating systems can be used in homes with efficient thermal enclosures, decreasing energy consumption and costs.

Publication Date: October, 2015
Case study on using advanced controls to improve performance of combination space and water heating systems.
Publication Date: June, 2015
Case study on homes that have a single heating plant that provides space and water heating.
Publication Date: July, 2015

Case study on air sealing building enclosures using aerosolized sealant.

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

Case study describing research about spray foam roof insulation and moisture management.

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

Case study exploring how using buried and/or encapsulated ducts can reduce duct thermal losses in existing homes.

Publication Date: August, 2015
Case study on heating loads for superinsulated buildings.
Author(s): NSTAR, PARR
Organization(s): NSTAR, PARR
Publication Date: May, 2014

Case study describing a method for evaluating safe installation and operation of combustion appliances in homes undergoing energy efficiency upgrades where indoor air is used for combustion and venting.

Publication Date: December, 2015
Case study on combustion safety testing as an important step in upgrading for energy efficiency.
Author(s): PNNL
Organization(s): PNNL
Publication Date: August, 2012

Case study about eliminating excessive humidity in the attic of a multi-floor, single-family home that was causing condensation and water damage along the roof and eaves.

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: September, 2015
Case study describing how researchers monitored heat output and electricity consumption of air-source heat pumps
Publication Date: September, 2015
Case study describing an experiment to build and instrument unvented test roofs using air-permeable insulation in a cold climate and to analyze the moisture effects over time.
Publication Date: February, 2016
Case study on field testing an unvented roof with fibrous insulation and tiles.
Publication Date: September, 2015
Case study on high-performance ducts in hot-dry and mixed-dry climates.
Author(s): CARB
Organization(s): CARB
Publication Date: May, 2014

Case study describing steps for properly designing a hydronic system for setback operation, which are applicable to new construction and retrofit applications.

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

Case study describing how to decrease indoor moisture using an air conditioning unit with a dehumidifier in hot-humid climates.

Publication Date: August, 2015
Case study describing methods to retrofit foundations and basements in climate zones 6 and 7.
Publication Date: August, 2015
Report on the long-term monitoring of mini-split ductless heat pumps.
Publication Date: August, 2015
Report on low-load options in heating, ventilation, and air conditioning equipment used in multifamily homes.
Author(s): BSC
Organization(s): BSC
Publication Date: October, 2013

Case study describing research about using exterior, vapor permeable insulation of retrofit walls with vapor permeable cavity insulation.

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

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

Publication Date: September, 2015
Case study desscibing direct current power optimizers and microinverters.
Author(s): CARB
Organization(s): CARB
Publication Date: November, 2013

Case study about measuring envelope leakage in multifamily buildings.

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

Case study detailing techniques used to prevent thermal bypass in new homes.

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

Case study describing how a properly designed duct system is essential for keeping a home comfortable, managing indoor air quality, and maximizing the performance of heating and cooling equipment.

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.

Publication Date: October, 2015
Case study on retrofit measures for embedded wood members in insulated mass masonry walls.
Author(s): PNNL
Organization(s): PNNL
Publication Date: August, 2012

Case study about retrofitting a leaky air handler. 

Publication Date: October, 2015
Case study describing methods to seal crawl spaces in cold climate homes with integrated whole-house ventilation systems.
Author(s): CARB
Organization(s): CARB
Publication Date: December, 2014

Case study aimed at helping contractors and building owners choose the best ventilation for existing homes.

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

Case study describing a stand-off furring strategy that minimizes the physical connections to each existing wall stud, uses spray foam to encapsulate existing siding materials (including lead paint), and creates a vented rain screen assembly to promote drying.

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.

Publication Date: September, 2015

Case study testing the effectiveness of various ventilation systems at two unoccupied, single-family lab homes at the University of Texas at Tyler.

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): NREL, Habitat for Humanity of Metro Denver
Organization(s): NREL, Habitat for Humanity of Metro Denver
Publication Date: April, 2008

Case study describing a Habitat for Humanity zero net energy home in Denver.

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