Unilin Insulation | The new name for Xtratherm Insulation in the UK & Ireland.
87.5mm Thin-R Thermal Liner XT/TL Insulated Plasterboard combines a Unilin 75mm PIR insulation core with two composite kraft facings, bonded to 12.5mm tapered edge plasterboard using a proprietary adhesive system. This composite panel delivers both thermal performance and drylining capabilities in a single application.
Engineered for internal wall installations, the kraft facing incorporates an integral vapour control layer to minimise condensation risk. The Thin-R Thermal Liner offers substantial thermal insulation alongside finishing work, making it an excellent choice for new builds and renovation schemes.
Brand: Unilin
Thickness: 87.5mm
Model: 87.5mm XT/TL Dot&Dab
Dimensions: 2400mm x 1200mm x 87.5mm
Compressive Strength: 150 kPa
Density: 30-32 Kg/m3
Material: PIR core ǀ Gypsum plasterboard
Profile: Tapered edge plasterboard
R-Value: 3.48 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
The 87.5mm Thermal Liner XT/TL delivers comprehensive thermal performance and drylining in a single operation, making it the preferred choice for new construction and refurbishment work. It enhances your property's energy efficiency whilst reducing heating expenses and creating a more comfortable living environment.
This 87.5mm insulation board is chemically stable and manufactured using a blowing agent with zero Ozone Depletion Potential (ODP) and minimal Global Warming Potential (GWP), ensuring safe handling and environmental responsibility.
Upgrading your home's thermal performance offers significant advantages, including lower utility bills and enhanced comfort levels. Thin-R Thermal Liner represents an effective solution for achieving superior energy efficiency in your property.
The PIR board delivers fire resistance through continuous adhesive ribbons, particularly around vulnerable areas like window and door openings.
The 87.5mm XT/TL insulated plasterboards (75mm insulation + 12.5mm plasterboard) integrate plasterboard with an insulation layer, typically PIR insulation, creating a unified panel that provides thermal performance and a finished surface. These materials are widely used in construction to enhance thermal and acoustic insulation, whilst streamlining installation timescales. Common applications include walls, ceilings, and floors, with options available in various dimensions and thicknesses to meet specific building needs.
Browse our Unilin stock and refine by thickness or coverage using the left-hand filters. For product suitability advice or bulk quotations, contact us on +4402038839057, email sales@insulationbee, or use Live Chat for the best UK insulation prices.








