Engineered Jointing Thermal Conductivity Extensive Range High Performance PIR Roof Insulation Board (Warm Roof) Constructions with Engineered Jointing High Thermal Performance Certified Thermal Conductivity Robust Engineered Jointing Low Emissivity Foil Facings BRE Green Guide A+ Rated More than insulation

Xtratherm Sarking XT/SK is the most effective solution to insulating roofs to reach the very efficient U-values required to achieve zero carbon targets. Creating a ‘Warm Roof’ allows complex roofs to be more effectively insulated with a reduced risk of thermal bridging and condensation problems as the roofing timbers are kept at or near internal environmental conditions. Sarking Warm Roof Insulation High Thermal Performance Super efficient U-value in roofs Effective Thermal bridging detailing Fully engineered jointing system Avoids thermal stress in roofs Design Using Xtratherm on sloped roof...

Installation Guidelines Slating or tiling is installed in accordance with the relevant clauses of BS 5534 Part 1: 1997. When the roof space is to be used as a living area, the Xtratherm Thin-R boards should be covered with 12.5mm plasterboard. Additional Layers 1 1. A timber stop rail is fixed to the bottom of the rafters A treated timber stop rail, the same thickness as the Xtratherm Sarking Insulation, is fixed to the rafters close to the eaves to provide a firm fixing point for the counter battens. The Xtratherm Sarking boards are laid over the rafters commencing at the stop rail, the Tongued...

Xtratherm Technical Services All the members of our technical team are individually BBA accredited to help you reach your low energy goals. BBA qualified in U-value calculation, condensation risk and also Thermal Bridging 3D analysis backed by BRE accreditation – when you call Xtratherm, you can be assured you’re speaking to a qualified person. Walls: Insulation for Partial Fill Cavity Wall Walls: Full Fill Built-in Insulation for Traditional Build Walls: Insulation with enhanced performance for Partial Fill Cavity Walls Floors: Insulation for Ground Supported and Suspended Floors Walls: Insulation...