Unilin Insulation | The new name for Xtratherm Insulation in the UK & Ireland.
47.5mm Thin-R Thermal Liner XT/TL Insulated Plasterboard combines a Unilin 35mm PIR insulation core with composite kraft facings bonded to 12.5mm tapered edge plasterboard using a proprietary adhesive system. This composite panel is engineered for internal wall applications, with an integral vapour control layer built into both kraft facings to minimise condensation risk. The product delivers comprehensive thermal insulation and drylining in a single installation, making it ideal for both new builds and renovation schemes.
Brand: Unilin
Thickness: 47.5mm
Model: 47.5mm XT/TL Dot&Dab
Dimensions: 2400mm x 1200mm x 47.5mm
Compressive Strength: 150 kPa
Density: 30-32 Kg/m3
Material: PIR core ǀ Gypsum plasterboard
Profile: Tapered edge plasterboard
R-Value: 1.65 m2K/W
Thermal Conductivity: 0.022 W/mk
Vapour Resistivity: 100 MNs/gm
Finish: Composite Kraft facings
Reaction To Fire: Euroclass B s1 d0
Applications: Internal walls ǀ Pitched and flat roofs
Vapour Control Layer: Yes, build in
Fixing method: Adhesive bonding
Features: PIR Thermal Insulated Plasterboard
Type: Thermal Liner®
Flexural Strength: ≥160N Transverse / ≥400N Longitudinal
This 47.5mm Thermal Liner XT/TL delivers comprehensive thermal insulation alongside drylining in a single operation, offering an excellent choice for newbuild and refurbishment applications. It enhances your home's energy performance whilst delivering multiple advantages, including lower heating costs and enhanced comfort levels.
The 47.5mm Insulation Board is chemically stable and safe in use, manufactured using a blowing agent with zero Ozone Depletion Potential (ODP) and minimal Global Warming Potential (GWP).
Upgrading your home's thermal efficiency delivers substantial benefits, from reduced energy expenditure to improved indoor comfort. Thin-R Thermal Liner represents an effective solution for achieving these improvements and creating a more energy-efficient living space.
The PIR board offers fire resistance through continuous adhesive ribbons, particularly around vulnerable areas such as window and door openings.
The 47.5mm XT/TL insulated plasterboards (35mm insulation + 12.5mm plasterboard) are composite building panels that integrate plasterboard with an insulation layer, typically manufactured from PIR insulation. The insulation layer bonds to the plasterboard to form a unified, multi-purpose panel delivering both thermal performance and a finished surface. These products are widely used in construction to enhance thermal and sound insulation, whilst streamlining and accelerating installation. Common applications include walls, ceilings, and floors, with options available in various dimensions and thicknesses to meet specific building needs.
Browse our Unilin range and refine by thickness or coverage using the left-hand filters. For guidance on product suitability for your project or to request a quantity discount quotation, contact us by phone on +4402038839057, email sales@insulationbee or via Live Chat - Lowest UK Insulation Prices.








