Get an update on different materials sectors and where they have reached on the road to zero carbon. How to reuse materials and design for future flexible buildings? What are the main constraints in innovating circular materials and how they can be overcome? This debate delves into the recycling drive in the cement and concrete sectors, demountability and melting down for re-manufacture, and the extent to which any material is ‘virtuous’.

Moderated by Hattie Hartman, Sustainability Editor, Architects' Journal