Prof. Philip Griffiths holds the chair in Building Physics at the Belfast School of Architecture & the Built Environment, Ulster University. He is a Chartered Engineer and a fellow of the Energy Institute and of the Institution of Civil Engineers. His research is on the energy efficiency of buildings, building systems and building materials, with an emphasis on creating healthy internal environments. In recent years he has returned to his original academic roots in examining resource efficiency in the built environment through the lens of the circular economy. He is one of two UK management committee members of the EU ESF COST-funded network www.circularb.eu and leads the WG4 work package. He represents the Energy Institute's Northern Ireland regional committee on the Northern Ireland Parliament’s All-Party Group on Science and Technology. He sits on the Energy Institute’s Professional Development Committee and is the chair of the Institute’s Academic Accreditation Panel. He is a member of the Chartered Institution of Building Services Engineers Sustainability Special Interest Group and chairs their working group on circular economy.