Timber Frame construction represents a building method employing substantial wooden members to establish the structural framework. In timber frame buildings, the external structural wall incorporates timber studs designed to support loads and transfer them to the foundation system. The walls, floors, and roofs function as an integrated, engineered structural assembly.
The 25mm Unilin Thin-R XT/TF system delivers enhanced thermal performance for wall insulation in timber framed walls, exceeding standard building regulation requirements. Installing 25mm XT/TF in timber frame construction enables compliance with Future Home and Passive House Standards.
Brand: Unilin
Thickness: 25mm
Available Thicknesses: 25mm, 30mm, 40mm, 50mm, 60mm, 80mm, 100mm, 120mm
Dimensions: 2.4m x 1.2m x 25mm
Area: 2.88m2
Density: 30kg/m3
Thermal Conductivity: 0.022W/mK
Thermal Resistance: 1.10 m2K/W
Compressive Strength: 140kPa
Water vapour resistivity: 100MN.s/g.m
Surface Spread of Flame: Class 1
Type: PIR Insulation for timber frame walls
Application: Wall Insulation
Inner facing: Foil Facer
Outer facing: Foil Facer
Compressive Strength: CS (10\Y) 140
Reaction to Fire: Euroclass E
EPD: An Environmental Product Declaration (EPD), certified by IGBC is available for this product.
Explore our comprehensive Unilin range and refine by thickness or coverage using the filters on the left. For project-specific guidance or bulk pricing enquiries, contact us by telephone on +4402038839057, email sales@insulationbee or use Live Chat for competitive UK Insulation pricing.











