The Impact of Window Energy Efficiency: Part 1

John Carmody and Kerry Haglund of the Center for Sustainable Building Research share an overview of how window specification can impact building efficiency, tools to guide smart specification and building design, how to use these tools, and their interesting implications. 

As of 2010, 41% percent of U.S. primary energy was consumed by buildings. CEE’s research to evaluate how window upgrades and retrofits could impact energy efficiency in Minnesota alone estimates savings are in the range of five to six percent. For the last twenty years, the Center for Sustainable Building Research (CSBR) of the University of Minnesota has been conducting research on efficient window products. 

Recently, they have partnered with Lawrence Berkeley National Lab to develop tools that assist architects, engineers, and other building professionals make impactful window and day-lighting decisions early in conceptual design. This webinar shares an overview of how window specification can impact building efficiency, the free and robust tools that now exist to guide smart specification and building design across the country, how to use the tools, and interesting implications of these tools. 

This webinar speaks directly to commercial window products with a particular emphasis on cold climate needs. It presents products for both new construction and retrofits. However, since residential and commercial windows products are both applicable for commercial buildings, the webinar reviews several types of products. In early 2014, a second webinar in this series will speak to the cost benefits of window upgrades and retrofits in Minnesota, specifically, and the extent of the potential applications.

If you missed the live event, click through the slides below:

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The Impact of Window Energy Efficiency and How to Make Smart Choices

Presenter bios

John Carmody
Director of the Center for Sustainable Building Research at the University of Minnesota.


John holds a Bachelors and Masters degree in Architecture from the University of Minnesota. He has worked in building-related research for 30 years and is the author of several books on building design and construction. These include Window Systems for High Performance Buildings with Lawrence Berkeley National Laboratory, and the new edition of Residential Windows: A Guide to New Technologies and Energy Performance. John is one of the co-leaders of the Northern STAR Building America team. In 2008, the Center received funding to lead the State of Minnesota in its transformation to zero net energy and carbon buildings by the year 2030. His work also includes research on sustainable building guidelines and standards, life cycle assessment of materials, affordable housing, post occupancy evaluations, and the development of decision-making tools for designers. 

Kerry Haglund
Former Senior Research Fellow at the Center for Sustainable Building Research at the University of Minnesota


Kerry currently provides consulting services. Kerry has a Bachelor and Master of Architecture from the University of Minnesota. Her work focuses on windows and glazings research, decision-making tool development, and information design and dissemination. Kerry spent 6 years on the Board of Directors for the National Fenestration Rating Council (NFRC) and remains an active participant of NFRC as well as other window industry associations. She was recently named in Glass Magazine’s 2012 List of Most Influential Individuals Impacting the Glass and Metal Industry.