Unilin Insulation | The new name for Xtratherm Insulation in the UK & Ireland.
The 99.5mm XT/TL-MF Thin-R Thermal Liner (Mechanically Fixed) combines a Unilin 90mm PIR insulation layer with a composite foil facing, bonded to 9.5mm tapered edge plasterboard. This composite panel delivers both insulation and drylining in a single product, ideal for internal walls, sloped roofs, and ceilings when mechanically fixed.
The 99.5mm Insulated Plasterboard features composite foil facing on both sides with an integral vapour control layer built in, helping to minimise condensation risk. This mechanically fixed thermal liner delivers substantial thermal performance alongside drylining in a single operation, making it the ideal choice for new builds and renovation work alike.
Brand: Unilin
Thickness: 99.5mm overall
Model: 99.5mm XT/TL-MF Drylined
Dimensions: 2,400mm x 1,200mm x 99.5mm
Compressive Strength: 150 kPa
Density: 30-32 Kg/m3
Length: 2400mm
Material: PIR core ǀ Gypsum plasterboard
Profile: Tapered edge plasterboard
R-Value: 4.15 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
This 99.5mm Thermal Liner XT/TL-MF combines thermal insulation with drylining in a single operation, delivering an efficient solution for new construction and refurbishment projects. It enhances your home's energy performance while reducing heating costs and creating more comfortable living spaces.
The 99.5mm 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 advantages, including lower energy bills and enhanced comfort. The Unilin XT/TL-MF Thermal Liner is a practical solution to improve energy efficiency and reduce your environmental impact.
The PIR board delivers fire resistance through continuous adhesive ribbons, particularly around vulnerable areas such as window and door openings.
The 99.5mm XT/TL-MF insulated plasterboards ( 90mm insulation + 9.5mm plasterboard ) combine plasterboard with an integrated insulation layer, typically PIR-based. The insulation bonds to the plasterboard, creating a unified panel that provides both thermal performance and a finished surface. These panels improve thermal and sound insulation, whilst streamlining installation. They work well in walls, ceilings, and floors, available in various sizes and thicknesses to match your building specifications.
Browse our Unilin range and filter by thickness or coverage on the left side of the page. For advice on product suitability for your project or to request a quantity discount quotation, contact us on +4402038839057 , email sales@insulationbee or use Live Chat - Lowest UK Insulation Prices.















