Sustainable Design and Energy—Efficient Building Techniques for Existing Housing

Building in the 21st Century

Audio from the National Building Museum

Presented By: William Asdal
Date Recorded: February 19, 2004

William Asdal, president of Asdal and Company Builders, presents several field demonstrations that he has completed for the Department of Energy, the National Renewable Energy Laboratory, and the National Association of Home Builders Research Center. In a number of case studies, he illustrates the remodeling process and discusses several models for evaluating design options, including return on investment, first cost, and personal responsibility.

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