Unilin Thin-R 122.5mm Insulated Drylining Board

Unilin Insulation | The new name for Xtratherm Insulation in the UK & Ireland.

The 122.5mm XT/TL-MF Thin-R Thermal Liner (Mechanically Fixed) comprises a Unilin 110mm PIR insulation layer and composite foil facing adhered to 12.5mm tapered edge plasterboard. This insulated composite panel works for internal walls, sloped roofs, and ceilings, though it is designed specifically for mechanically fixed installations.

The 122.5mm Insulated Plasterboard carries composite foil facing on both surfaces with an integral vapour control layer built in, helping to minimise condensation risk. This Mechanically fixed XT/TL Thermal Liner delivers substantial thermal insulation and drylining performance in a single step, making it the ideal choice for new builds and refurbishment work.

Properties

Brand: Xtratherm / Unilin

Thickness: 122.5mm overall

Model: 122.5mm XT/TL-MF Drylined

Dimensions: 2,400mm x 1,200mm x 122.5mm

Compressive Strength: 150 kPa

Density: 30-32 Kg/m3

Length: 2400mm

Material: PIR core ǀ Gypsum plasterboard

Profile: Tapered edge plasterboard

R-Value: 5.06 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

Benefits

1. Insulation & Drylining in one application
2. Provides effective vapour control layer
3. Reduced insulation thickness
4. Suitable for a variety of wall Insulation types

About

The 122.5mm Thermal Liner XT/TL-MF combines thermal insulation and drylining in a single operation, offering an excellent solution for new construction and refurbishment projects. It enhances your home's energy efficiency whilst delivering substantial cost savings and improved comfort levels.

This 122.5mm 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 energy performance offers significant advantages, including reduced heating bills and enhanced living comfort. The Unilin XT/TL-MF Thermal Liner represents an effective solution for achieving superior energy efficiency in your property.

The PIR board also delivers fire resistance benefits through continuous adhesive ribbons, particularly around openings such as windows and doors.

What are Insulated Plasterboards?

The 122.5mm XT/TL-MF insulated plasterboards (110mm insulation + 12.5mm plasterboard) combine plasterboard with an integrated insulation layer, typically PIR-based. The insulation bonds directly to the plasterboard, creating a unified panel that delivers both thermal performance and a finished surface. These panels are widely used in construction to enhance thermal and sound insulation, whilst streamlining installation. Common applications include walls, ceilings, and floors, with various sizes and thicknesses available to match specific building needs.

Info

Explore our Xtratherm range and refine by thickness or coverage using the left-hand filters. For advice on product suitability for your project or to request a bulk discount quote, contact us on +4402038839057, email sales@insulationbee or use Live Chat - Lowest UK Insulation Prices.