It’s time for another Conversation. This week, The Editors talk about Rick Fedrizzi’s retirement from USGBC, USGBC alignment with CALGreen, cool roofs, water-purification art, Pennsylvania building codes, and sustainable Legos The Editors are Gary L. Parr, editorial director of Commercial Building Products magazine, and Paul Nutcher, editor of Roofing Florida magazine. Our podcasts are available on iTunes. Click on this link ...