Nigel Fields, Midlands Area Field Technician at SIG Design and Technology, discusses best practice for a technically challenging single ply roof refurbishment at Chester Zoo with Architecture Today’s Technical Editor John Ramshaw.

Andy Wells, National Supply Chain Manager at SIG Design and Technology, in conversation with Architecture Today’s Technical Editor John Ramshaw, explores best practice design for a complex, large-scale membrane roof overlay project at the International Electric Maintenance Depot in Crewe.