A range of polyisocyanurate (PIR) thermal laminate insulation boards with a kraft-paper facing, laminated to a piece of 12.5mm tapered edge plasterboard. This provides insulation, plasterboard and vapour control as one product with multiple fixing options including adhesive bonding, where appropriate. |Celotex PL4000 is mainly used as thermal insulation in roof and internal wall lining applications.|BBA Certificate: 25/7360 |Lambda: 0.022 W/m.K