Floris Keverling Buisman CPHC, LEED AP – Floris is CEO / Technical Director of 475 High Performance building supply, and specialized in daylighting, airtightness in high performance envelopes. He has Master degrees in both Architectural Engineering and Real Estate development from the Delft University of Technology, The Netherlands. He built the Lucy House at the Rural Studio, worked at Common Ground Community, and on Mayor Bloomberg’s PlaNYC Green Code Task Force and is currently on 2015 NYC Energy Conservation Code advisory Comittee. Floris is a Certified Passive House Consultant, WUFI-ORNL instructor, and a founding board member of New York Passive House. Floris has been an adjunct professor at The City College of New York and has been a guest critic at Yale, the New School, Pratt Institute and Columbia University.