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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): Hoeschele, Weitzel, Backman
Organization(s): ARBI
Publication Date: June, 2017

This project completed a modeling evaluation of a hybrid gas water heater that combines a reduced capacity tankless unit with a downsized storage tank. This product would meet a significant market need by providing a higher efficiency gas water heater solution for retrofit applications while maintaining compatibility with the half-inch gas...

Author(s): Colon, Martin
Organization(s): BA-PIRC
Publication Date: August, 2017

The Florida Solar Energy Center (FSEC) has completed a fourth year-long evaluation on residential hot water heating systems in a laboratory environment (east central Florida, hot-humid climate). This report contains a summary of research activities regarding the evaluation of two residential electric heat pump water heaters (HPWHs), a solar...

Author(s): Schirber, Schoenbauer
Organization(s): NorthernSTAR
Publication Date: June, 2017

High performance water heaters are typically more time consuming and costly to install in retrofit applications, making high performance water heaters difficult to justify economically. However, recent advancements in high performance water heaters have targeted the retrofit market, simplifying installations and reducing costs. Four high...

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

Case study about a DOE 2013 top innovation profile on Home Performance XML, a data transfer standard that communicates between home performance programs and analysis software, developed by the National Renewable Energy Laboratory.

Author(s): PNNL
Organization(s): LBNL, BSC, FSEC, WSU Energy Office, Building Research Council, Southface, PNNL
Publication Date: December, 2014

Case study on a DOE 2014 top innovation on research that was instrumental in developing and gaining adoption of the ASHRAE 62.2 ventilation standard. The research and standards work was conducted by Lawrence Berkeley National Laboratory, and Building America research partners Building Science Corporation, Florida Solar Energy Center,...

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): IBACOS
Organization(s): IBACOS
Publication Date: January, 2015

Case study about analysis of pre-retrofit utility data from 1,166 houses to help determine energy savings on a community-scale.

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: November, 2013

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

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: February, 2016
Case study on field testing an unvented roof with fibrous insulation and tiles.
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 about measuring envelope leakage in multifamily buildings.

Author(s): Steven Winter Associates
Organization(s): CARB, Steven Winter Associates
Publication Date: November, 2010

Case study about an upgraded home with an energy monitoring system designed to analyze the savings realized from the upgrades.