![USGBC Knowledge Exchange » Podcast Feed show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/028/785/small/usgbc-knowledge-exchange-podcast-feed.png)
Summary: Listen in as USGBC's Doug Gatlin, Vice-President of Market Development, Sundee Wislow, Director of Sustainability at U.S. Equities, and Gail Borthwick, Architect with Adrian Smith + Gordon Gill, discuss the retrofits being conducted to the Willis Tower - and how conducting retrofits as a building ages can make both dollars and sense for this commercial property.