Robust Performance Thermal Conductivity Extensive Range High Performance PIR Roof Insulation Board Pitched Roofs High Thermal Performance Certified Thermal Conductivity _ow Emissivity Foil Facings BRE Green Guide A+ Rated More than insulation

XT/PR Insulation for Pitched Roofs Using Xtratherm Thin-R XT/PR on sloped roofs, whether Warm, Hybrid or Vented can provide the most efficient U-values with minimal intrusion into valuable living space. Warm Roof construction is a particularly effective way of insulating complex roofs. Insulating above and between the roof timbers ensures that the structure is kept at, or near the internal environmental conditions, reducing thermal stress and condensation risk. Pitched Roofs Effective insulation of roof area Reduces thermal bridging Avoids intrusion into living area In a ceiling, typically fibre...

Installation Guidelines Warm Roof Ventilated Roof Ensure cavity wall insulation has continued to roof height to engage with roof insulation. Fix positioning battens to inner face of rafters. Fix a timber stop rail to end of rafter at eaves. Lay Xtratherm insulation stagger jointed over rafters ensuring joints are supported by rafters. Ensure boards are tightly butted fill any gaps with expanding foam. A vapour permeable underlay should be fitted; refer to manufacturers BBA certification. Providing an unvented void under the membrane can improve the thermal performance. Fix counter batten with...

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...