Menu
Menu
Your Cart

115mm Unilin Thin-R Plus XT/CF Full Fill Insulation (pack of 4) - 1200mm x 450mm

115mm Unilin Thin-R Plus XT/CF Full Fill Insulation (pack of 4) - 1200mm x 450mm
115mm Unilin Thin-R Plus XT/CF Full Fill Insulation (pack of 4) - 1200mm x 450mm
Our ratings on 21-11-2025:
Google My Business Reviews
4.8 out of 5
Show other thicknesses

115mm Unilin Thin-R Plus XT/CF Full Fill Insulation (pack of 4) - 1200mm x 450mm

Length: 1200mm
Width: 450mm
Thickness: 115mm
Pack Quantity: 4
Board Coverage: 0.54m2
Pack Coverage: 2.16m2
Thermal Conductivity: 0.021W/mK
R-Value: 5.45m2K/W
Compressive Strength: 120kPa

115mm Unilin Thin-R Plus XT/CF is a superior performance, enhanced polyisocyanurate (PIR) insulation, specifically engineered for full-fill thermal insulation in new external masonry cavity walls. This advanced insulation board is designed to meet and exceed the stringent thermal requirements of British Building Regulations, ensuring optimal energy efficiency and comfort in residential and commercial properties. Unilin XT/CF delivers outstanding thermal performance, significantly reducing heat loss and improving the overall U-values of the wall structure. The boards are faced on both sides with a low emissivity foil, further enhancing their insulating properties and contributing to maximum heat retention.

The XT/CF range is suitable for full-fill cavity applications, maintaining a crucial 10mm residual cavity. This design not only maximises thermal performance but also provides excellent protection against wind-driven rain, a common concern in the British climate. Furthermore, it boasts an enhanced Euroclass C fire classification, offering improved safety and peace of mind for specifiers and builders. Unilin XT/CF is a lightweight, easy-to-handle product, simplifying installation on site. It is available in a range of thicknesses to suit various project requirements and is manufactured in accordance with EN 13165, ensuring consistent quality and reliability. Unilin XT/CF is a robust, efficient, and compliant insulation solution that contributes to the creation of truly energy-efficient and comfortable buildings.

APPLICATION

  • Full fill cavity wall insulation

CHARACTERISTICS

  • Enhanced Polyisocyanurate (PIR) insulation.
  • Specifically designed for full-fill thermal insulation in new external masonry cavity walls.
  • Exceptionally low at 0.021 W/mK, indicating superior thermal performance.
  • Low emissivity foil on both sides, enhancing thermal performance.
  • Engineered for full-fill applications while maintaining a 10mm residual cavity.
  • Provides excellent protection against wind-driven rain.
  • Enhanced Euroclass C fire classification for improved safety.
  • Lightweight and easy to handle, simplifying installation.
  • Manufactured in accordance with EN 13165, ensuring quality and reliability.
  • Contributes to significantly improved U-values, reduced heat loss, enhanced energy efficiency, and increased comfort.

CERTIFICATION

       

50mm Unilin FR/MG Flat Roof Board - pack of 10 50mm Unilin FR/MG Flat Roof Board - pack of 10
Guide Price
Brand: Unilin (prev. Xtratherm) Model and Size: 1200mm x 1200mm - 14.4m2
Delivery Time: 3 - 5 days
50mm Unilin FR/MG is a high performance PIR core with mineral coated glass facers suitable for use below single ply waterproofing systems and partially bonded built-up felt. It is compatible with adhesively bonded single ply roofing membranes laid on mechanically fixed ..
Guide Price: £181.49
£217.79 inc VAT
Get Best Price
Brand: Unilin (prev. Xtratherm) Model and Size: 2400mm x 1200mm - 2.88m2
Delivery Time: 1-3 working days
146mm Unilin FR/TP Thermal Ply Flat Roof Board is a high-performance composite board designed for flat roof applications. It comprises a 140mm rigid polyisocyanurate (PIR) insulation board directly bonded to a 6mm WBP grade plywood. This combination provides both high levels of thermal insulation an..
Get Best Price
35mm Unilin XT/TF PIR Rigid Insulation Board - Timber Framed Walls - 1200mm x 2400mm 35mm Unilin XT/TF PIR Rigid Insulation Board - Timber Framed Walls - 1200mm x 2400mm
Guide Price
Brand: Unilin (prev. Xtratherm) Model and Size: 2400mm x 1200mm - 2.88m2
Delivery Time: 1-3 working days
35mm Unilin Thin-r XT/TF has a core of polyisocyanurate (PIR) bonded to low emissivity textured aluminium foil facings for use in timber framed walls. Unilin XT/TF board offers excellent insulation performance with excellent thermal conductivity. Unilin XT/TF is CFC & HCFC free and is manuf..
Guide Price: £22.37
£26.84 inc VAT
Get Best Price
92.5mm Unilin Safe-R SR/TB-MF (80mm Phenolic Core and 12.5mm Plasterboard) -  Mechanical Fixing (pack of 4) 92.5mm Unilin Safe-R SR/TB-MF (80mm Phenolic Core and 12.5mm Plasterboard) -  Mechanical Fixing (pack of 4)
Guide Price
Brand: Unilin (prev. Xtratherm) Model and Size: 2400x1200 - 11.52m2
Delivery Time: 2 - 3 working days
92.5mm Unilin Safe-R SR/TB-MF is a composite insulated panel of 80mm Phenolic core with a composite foil facing bonded to a 12.5mm tapered edge plasterboard for internal applications, mechanically fixed. Unilin Safe-R SR/TB-MF is designed to provide high levels of thermal insulation and dry lining i..
Guide Price: £495.03
£594.04 inc VAT
Get Best Price
65mm Unilin XT/PR-UF PIR Rigid Insulation Board - 1200mm x 2400mm 65mm Unilin XT/PR-UF PIR Rigid Insulation Board - 1200mm x 2400mm
Guide Price
Brand: Unilin (prev. Xtratherm) Model and Size: 2400mm x 1200mm - 2.88m2
Delivery Time: 1-3 working days
65mm Unilin Thin-r XT/PR-UF has a core of polyisocyanurate (PIR) bonded to low emissivity textured aluminium foil facings. Unilin XT/PR-UF board offers excellent insulation performance with excellent thermal conductivity. Unilin XT/PR-UF is CFC & HCFC free and is manufactured under the high..
Guide Price: £34.07
£40.88 inc VAT
Get Best Price
90mm Unilin FR-BGM Flat Roof Insulation Board (pack of 5)
Guide Price
Brand: Unilin (prev. Xtratherm) Model and Size: 1200mm x 1200mm - 7.20m2
Delivery Time: 3 - 5 days
90mm Unilin FR-BGM is a a BBA certified high performance PIR insulation board that is faced with a fleece finished bitumen/glass facers and is suitable for use below partially bonded bitumen based built up roofing systems. Unilin FR-BGM is suitable to apply torch on felt directly on the insulation. ..
Guide Price: £159.18
£191.02 inc VAT
Get Best Price
This product is listed in the following categories and systems (click to show).