Marianne Touchie is an Assistant Professor in the Departments of Civil Engineering and Mechanical & Industrial Engineering at the University of Toronto. Prior to joining the U of T faculty in 2016, she was the Building Research Manager at the Toronto Atmospheric Fund and a Postdoctoral Fellow in the Department of Civil Engineering at the University of Toronto. Her research focuses on improving the energy performance and indoor environmental quality of existing buildings to make them more comfortable, healthy and sustainable through comprehensive retrofits. Most recently, Dr. Touchie and her colleagues have been studying the interaction between energy performance and indoor environmental quality in Toronto’s aging multi-unit residential buildings including a number of buildings used for social housing. Dr. Touchie teaches courses in Building Science and HVAC. Dr. Touchie is also the Vice Chair of ASHRAE’s Technical Committee 2.1 on Physiology and Human Environment and the Academic Director and Chair of the Building Science Specialist of Ontario (BSSO) Committee for the Ontario Building Envelope Council (OBEC).