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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): Mittereder, Poerschke
Organization(s): IBACOS
Publication Date: June, 2017

This case study presents a cold-climate project that examines an alternative approach to ground source heat pump (GSHP) ground loop design. The innovative ground loop design is an attempt to reduce the installed cost of the ground loop heat exchange portion of the system by containing the entire ground loop within the excavated location...

Author(s): Poerschke, Beach, Beggs
Organization(s): IBACOS
Publication Date: June, 2017

IBACOS investigated the performance of a small-diameter high-velocity heat pump system compared to a conventional system in a new construction triplex townhouse. A ductless heat pump system also was installed for comparison, but the homebuyer backed out because of aesthetic concerns about that system. In total, two buildings, having identical...

Author(s): PNNL
Organization(s): PNNL, IBACOS, BSC
Publication Date: January, 2013

This case study about a DOE Building America 2013 Top Innovation features a community-scale project in Tucson, AZ, where solar water heaters generated enough hot water per year to recoup the cost of the system within 4 to 6 years.The homes were built by Pulte with technical assistance from DOE Building America research partners...

Author(s): PNNL
Organization(s): IBACOS, BSC, PHI, HIRL, PNNL
Publication Date: September, 2013

Case study about a 2013 DOE top innovation on quality management tools for builders, trades and designers to help eliminate mistakes that would require high-cost rework, based on work by Building America research partners IBACOS, Inc., Building Science Corporation (BSC), and the Home Innovation Research Labs.

Author(s): PNNL
Organization(s): ARBI, CARB, SWA, FSEC, BA-PIRC, BSC, IBACOS, PHI, HIRL, PNNL
Publication Date: September, 2013

Case study on a DOE 2013 top innovation about construction of net-zero energy ready homes, by several builders working with various DOE Building America research partners including Steven Winter Associates, Building Science Corporation, Home Innovation Research Labs, IBACOS, Davis Energy Group, and the Florida Solar Energy Center.

Author(s): Poerschke, Beach
Organization(s): IBACOS
Publication Date: February, 2016
Report onhow space-conditioning systems are operating in the field and if these systems are meeting required standards.
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): 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): IBACOS
Organization(s): IBACOS
Publication Date: October, 2013

Case study describing ductwork installation.

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

Case study describing application of exterior rigid foam insulation on a foundation system.

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

Case study describing installation of exterior rigid foam insulation on a slab foundation.

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.

Publication Date: February, 2015
Case study on production builders who install efficient hot water delivery systems.
Author(s): IBACOS
Organization(s): IBACOS, NREL
Publication Date: December, 2010

Case study describing innovative technologies, construction techniques, products, and design trends in new home construction.