Unilin Insulation | The new name for Xtratherm Insulation in the UK & Ireland.
This 32.5mm XT/TL-MR Thermal Liner combines a Unilin 20mm PIR insulation layer with composite foil facing, bonded to 12.5mm tapered edge moisture resistant plasterboard. It creates an insulated composite panel ideal for internal walls, sloped roofs, and ceilings. Works with both Dot&Dab and mechanically fixed installation methods.
The 32.5mm Insulated Plasterboard features a PIR rigid insulation foam core bonded to 12.5mm green moisture resistant plasterboard. Designed for internal building areas with high humidity conditions, it accepts plaster finishes or direct decoration.
Brand: Unilin
Thickness: 32.5mm overall
Model: 32.5mm XT/TL-MR Moisture Resistant
Dimensions: 2,400mm x 1,200mm x 32.5 mm
Compressive Strength: 150 kPa
Density: 30-32 Kg/m3
Length: 2400mm
Material: PIR core ǀ Moisture Resistant plasterboard
Profile: Moisture Tapered edge plasterboard
R-Value: 0.96 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, sloped roofs, ceilings, Kitchen & Bathrooms.
Vapour Control Layer: Yes, build in
Fixing method: Mechanically Fixed | Dot and Dab
Features: Moisture Resistant Insulated Plasterboard
Type: Thermal Liner®
Flexural Strength: ≥160N Transverse / ≥400N Longitudinal
The 32.5mm Thermal Liner XT/TL-MR delivers comprehensive thermal insulation and drylining in a single installation step, making it the preferred choice for new construction and renovation work. This product enhances your home's energy performance while delivering multiple advantages, such as lower heating bills and enhanced comfort levels.
The 32.5mm Insulation Board is chemically stable and safe for use, manufactured with a blowing agent featuring zero Ozone Depletion Potential (ODP) and minimal Global Warming Potential (GWP).
Upgrading your home's thermal performance offers substantial benefits, including reduced energy expenditure and improved comfort. The Unilin XT/TL-MR Thermal Liner represents an efficient 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 frames.
The 32.5mm XT/TL-MR insulated plasterboards (20mm insulation + 12.5mm moisture resistant plasterboard) combine plasterboard with an integrated insulation layer, typically constructed from PIR Insulation. The insulation layer bonds to the plasterboard, creating a unified, multi-purpose panel offering both thermal performance and a finished surface. These panels are widely used in building construction to enhance thermal and sound insulation, whilst streamlining and accelerating installation. Common applications include walls, ceilings, and floors, with various sizes and thicknesses available to meet specific building needs.
Browse our Unilin stock and refine by thickness or coverage using the filters on the left. For advice on product suitability for your project or to request a quantity discount quotation, contact us by phone on +4402038839057, email sales@insulationbee or use Live Chat - Lowest UK Insulation Prices.








