The Unilin Thin-R XT/UF Floor Insulation Board is a rigid PIR insulation solution engineered for floor construction applications. Widely specified by construction professionals, this product delivers performance comparable to premium alternatives such as Kingspan TF70 at a more competitive cost.
Featuring a thermal conductivity of 0.022W/mK and compressive strength exceeding 150kPa, this 65mm floor insulation board maintains structural performance under load whilst delivering reliable thermal resistance. It represents an efficient and economical approach to floor insulation requirements.
Brand: Unilin Thin-R XT/UF
Thickness: 65mm
Length: 2400mm
Width: 1200mm
Overall Thickness: 15mm, 20mm, 25mm, 30mm, 35mm, 40mm, 45mm, 50mm, 60mm, 65mm, 70mm, 75mm, 80mm, 90mm, 100mm, 110mm, 120mm, 130mm, 140mm, 150mm, 160mm, 165mm
Maximum board weight: 0.45 kg/m²
Thermal Resistance: 0.68m²K/W
Thermal conductivity: 0.022 W/mK
Compressive strength: >150 kPa
Water Vapour Resistivity: >100 MNs/gm
Density (Foam Core): 30-32 Kg/m³
Surface spread of flame: Class 1
Reaction to fire: E
Finish: Aluminium Foil Facings
Applications: Ground Supported & Suspended Floors
ETA Notification: Yes
Features: Versatile ǀ High-performance ǀ Rigid
Floors with inadequate insulation contribute to significant thermal losses in buildings. The 65mm XT/UF Thin-R Underfloor Insulation effectively addresses this challenge, substantially improving the U-Value performance of both new construction and retrofit floor systems.
The Unilin XT/UF range combines lightweight construction with straightforward installation procedures. Its high compressive strength paired with low thermal conductivity makes it an excellent choice for demanding floor insulation board applications and superior thermal performance.
Explore our comprehensive Unilin product range and refine your selection by thickness or coverage using the filters on the left. For technical advice regarding product suitability for your specific project, or to request a quantity discount quotation, please contact us by telephone on +4402038839057, email sales@insulationbee, or use our Live Chat service - Competitive UK Insulation Pricing.












