Celotex CW4000 PIR Cavity Wall Insulation Board 1.2m x 450 x 85mm

The Celotex CW4000 PIR Cavity Wall Insulation Board 1.2m x 450 x 85mm (L x W x T) is an easy to install polyisocyanurate (PIR) insulation board that features a low emissivity foil facing with excellent thermal performance. It's the perfect solution in applications to partial fill masonry cavity walls, and the impressive U-values are achievable due to the low emissive foil facing, plus a low 0.022 W/m.K thermal conductivity value. Therefore, savings over the longer term are attainable with this durable PIR board being one of the best performing insulation materials available. The board benefits from a BRE (Building Research Establishment) Green Guide A Rating to assist with environmental performance, and has been specifically designed ensure fitment in standard wall tie spacing requirements.