Unilin Insulation | The new name for Xtratherm Insulation in the UK & Ireland.
82.5mm Thin-R Thermal Liner XT/TL Insulated Plasterboard combines a Unilin 70mm PIR insulation core with composite kraft facings on either side. These facings are bonded to 12.5mm tapered edge plasterboard using a proprietary adhesive system. This product is engineered for internal wall installations, with an integral vapour control layer built into the composite kraft facing to minimise condensation risk. It delivers comprehensive thermal insulation and drylining in a single application, making it an excellent choice for new builds and renovation schemes.
Brand: Unilin
Thickness: 82.5mm
Model: 82.5mm XT/TL Dot&Dab
Dimensions: 2400mm x 1200mm x 82.5mm
Compressive Strength: 150 kPa
Density: 30-32 Kg/m3
Material: PIR core ǀ Gypsum plasterboard
Profile: Tapered edge plasterboard
R-Value: 3.24 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 82.5mm Thermal Liner XT/TL delivers high-performance thermal insulation and drylining simultaneously, making it the preferred solution for new construction and refurbishment work. It enhances your home's energy efficiency whilst reducing heating expenses and creating a more comfortable living environment.
The 82.5mm 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 energy performance delivers substantial advantages, including lower utility bills and enhanced comfort levels. Thin-R Thermal Liner represents an effective solution for achieving greater energy efficiency in your property.
The PIR board offers fire resistance benefits through continuous adhesive ribbons, particularly around vulnerable areas such as window and door openings.
The 82.5mm XT/TL insulated plasterboards (70mm insulation + 12.5mm plasterboard) are building materials that integrate plasterboard with an insulation layer, typically manufactured from PIR. The insulation layer bonds to the plasterboard, creating a unified panel that delivers 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. They find application in walls, ceilings, and floors, available in various dimensions and thicknesses to match specific building needs.
Browse our comprehensive Unilin range and refine by thickness or coverage using the filters on the left. For guidance on product suitability for your project or to request a bulk discount quotation, contact us on +4402038839057, email sales@insulationbee or use Live Chat - Lowest UK Insulation Prices.








