81mm XO/STP Soffit Plus PIR Insulation Board (pack of 15)

The 81mm Unilin XO/STP XtroLiner Soffit+ PIR Insulation Board is a high-performance structural ceiling insulation solution designed to provide excellent thermal efficiency, fire protection, and durability for commercial and residential buildings. Manufactured from polyisocyanurate (PIR) rigid foam insulation, this advanced soffit board delivers reliable insulation performance for structural ceiling applications. With a low thermal conductivity of 0.021 W/mK and an R-value of 3.55m²K/W, the XtroLiner Soffit+ provides enhanced thermal resistance while maintaining a slim board thickness. The insulation board features a durable 6mm impact-resistant building panel finish, allowing decorative finishes to be applied where required. Its foil-faced surface improves vapour resistance and supports long-term insulation performance. Offering a Euroclass B, s1-d0 fire classification and BBA certification (No. 12/4956), this soffit insulation board provides an effective thermal and fire performance solution for structural ceiling systems. Suitable for fixing with timber battens or directly to concrete, the 81mm XtroLiner Soffit+ is ideal for high-performance insulation projects. Key Features High-performance PIR rigid foam structural ceiling insulation Designed for commercial and residential structural ceiling applications Excellent thermal performance with R-value of 3.55m²K/W Low thermal conductivity of 0.021 W/mK Fire classification: Euroclass B, s1-d0 Features a durable 6mm impact-resistant building panel Foil-faced surface improves vapour resistance and insulation performance Suitable for decorative finishing applications BBA Certified (No. 12/4956) Provides effective thermal and fire performance solution Suitable for fixing with timber battens or directly to concrete Dimensions & Pack Size Board Size: 2400mm x 1200mm Overall Thickness: 81mm Coverage: 2.88m² per sheet Pack Quantity: 15 sheets Total Pack Coverage: 43.20m² Material: Polyisocyanurate (PIR) rigid foam Finish: 6mm building panel with foil-faced surface Profile: Square Edge Weight: Approx. 390kg per pack DELIVERY INFORMATION FAST RELIABLE UK DELIVERY STANDARD DELIVERY - 1 TO 3 WORKING DAYS FREE DELIVERY ON ORDERS OVER £500 PALLET DELIVERY AVAILABLE NEED IT URGENTLY? CONTACT US FOR EXPRESS OPTIONS