Retrofitting existing buildings with occupants in place will be key to meeting our emissions reductions targets. This session will explore how a project team planned and executed a retrofit to target net-zero energy use, improve thermal comfort and air quality, protect the building from moisture, meet historic guidelines, and stay within a realistic budget – all while keeping the building occupied. Expect hands-on insights as the project team guides you through strategies on how to leverage financing mechanisms for historic rehabilitation and solar tax credits, how to design and quality-assure enclosure and mechanical systems, and how to safely perform blower-door-guided air-sealing. You’ll see that, done correctly, air-sealing flat-roofed buildings is not that hard – a lesson relevant to Boston’s Triple Decker Initiative.