PolyFoam XPS
Information - BDCPD 17 2026: Using XPS insulation below DPC level in cavity walls
Sponsored by PolyFoam XPS, this CPD module explores the principles behind using extruded polystyrene (XPS) insulation in masonry cavity walls below damp-proof course (DPC) level, examining relevant Building Regulations guidance, detailing approaches and the role of thermal modelling in achieving robust building performance