The Yard Builders Merchant offers a dedicated roof-insulation category featuring a wide range of high-performance insulation solutions designed to enhance thermal efficiency and reduce heat loss in roofs of all types. The range includes quality PIR insulation boards, rigid insulation panels, and related materials suitable for pitched, flat, and loft roof applications, backed by trusted brands and direct manufacturer supply. With nationwide delivery across the UK 12.5 mm knauf moisture panel plasterboard tapered edge