Unilin Insulation | The new name for Xtratherm Insulation in the UK & Ireland.
The 39.5mm XT/TL-MF Thin-R Thermal Liner (Mechanically Fixed) features a 30mm PIR insulation core bonded to 9.5mm tapered edge plasterboard with composite foil facing on both sides. This insulated composite panel delivers thermal performance and drylining capabilities for internal walls, sloped roofs, and ceilings using mechanical fixing methods.
The composite foil facing incorporates an integral vapour control layer, minimising condensation risk. Designed for high thermal insulation and drylining in a single operation, this insulated plasterboard is the ideal choice for new builds and renovation projects.
Brand: Unilin
Thickness: 39.5mm overall
Model: 39.5mm XT/TL-MF Drylined
Dimensions: 2,400mm x 1,200mm x 39.50mm
Compressive Strength: 150 kPa
Density: 30-32 Kg/m3
Length: 2400mm
Material: PIR core ǀ Gypsum plasterboard
Profile: Tapered edge plasterboard
R-Value: 1.42 m2K/W
Thermal Conductivity: 0.022 W/mk
Vapour Resistivity: 100 MNs/gm
Finish: Foil facing on both sides ǀ Composite Kraft facings
Reaction To Fire: Euroclass B s1 d0
Applications: internal walls, sloped roofs & ceilings - Mechanically Fixed Applications
Vapour Control Layer: Yes, build in
Fixing method: Mechanically Fixed
Features: PIR Thermal Insulated Plasterboard
Type: Thermal Liner®
Flexural Strength: ≥160N Transverse / ≥400N Longitudinal
The 39.5mm Thermal Liner XT/TL-MF combines thermal insulation and drylining in one operation, making it the preferred solution for new construction and refurbishment work. This product enhances your home's energy efficiency while reducing heating costs and creating a more comfortable living environment.
The insulation board is chemically inert and manufactured with a blowing agent featuring zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP), ensuring environmental responsibility.
Upgrading your home's energy performance delivers substantial advantages, including lower utility bills and enhanced comfort levels. The Unilin XT/TL-MF Thermal Liner provides an effective pathway to achieving these improvements and boosting overall energy efficiency.
The PIR board delivers fire resistance through continuous adhesive ribbons, particularly around vulnerable areas such as window and door openings.
The 39.5mm XT/TL-MF insulated plasterboards (30mm insulation + 9.5mm plasterboard) combine plasterboard with an integrated insulation layer, typically PIR-based. The insulation bonds to the plasterboard, creating a single multi-purpose panel offering both thermal performance and a finished surface. These panels improve thermal and sound insulation whilst streamlining installation. Commonly used in walls, ceilings, and floors, they're available in various sizes and thicknesses to meet diverse building specifications.
Browse our Unilin range and filter by thickness or coverage using the left-hand menu. For product suitability advice or bulk quotations, contact us on +4402038839057, email sales@insulationbee, or use Live Chat - Lowest UK Insulation Prices.














