44.5mm Unilin Thin-R XT/TL-MF Insulated Drylining Board

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

The 44.5mm XT/TL-MF Thin-R Thermal Liner (Mechanically Fixed) combines a Unilin 35mm PIR insulation layer with a composite foil facing, bonded to 9.5mm tapered edge plasterboard. This composite panel delivers thermal insulation and drylining in a single product, ideal for internal walls, sloped roofs, and ceilings where mechanical fixing is required.

Both surfaces of the 44.5mm Insulated Plasterboard carry a composite foil facing with an integral vapour control layer, helping to minimise condensation risk. The mechanically fixed XT/TL Thermal Liner delivers substantial thermal performance and drylining capabilities in one operation, making it the ideal choice for new builds and refurbishment work.

Properties

Brand: Unilin

Thickness: 44.5mm overall

Model: 44.5mm XT/TL-MF Drylined

Dimensions: 2,400mm x 1,200mm x 44.5mm

Compressive Strength: 150 kPa

Density: 30-32 Kg/m3

Length: 2400mm

Material: PIR core ǀ Gypsum plasterboard

Profile: Tapered edge plasterboard

R-Value: 1.65 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

This 44.5mm Thermal Liner XT/TL-MF combines thermal insulation and drylining in a single operation, offering a practical solution for new construction and refurbishment projects. It enhances your property's energy efficiency whilst delivering benefits such as lower heating costs and enhanced comfort levels.

The 44.5mm Insulation Board is chemically stable and safe, manufactured using a blowing agent with zero Ozone Depletion Potential (ODP) and minimal Global Warming Potential (GWP).

Upgrading your home's thermal performance offers significant advantages, from reduced energy bills to improved comfort. The Unilin XT/TL-MF Thermal Liner is an effective solution for achieving better energy efficiency in your property.

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

What are Insulated Plasterboards?

The 44.5mm XT/TL-MF insulated plasterboards (35mm insulation + 9.5mm plasterboard) combine plasterboard with an insulation layer, typically PIR, bonded together to form a single multi-functional panel. This delivers both thermal performance and a finished surface in one product. They're widely used in construction to enhance thermal and sound insulation, whilst streamlining the installation process. Common applications include walls, ceilings, and floors, with various sizes and thicknesses available to meet specific building needs.

Info

Browse our Unilin stock and filter by thickness or coverage on the left-hand side of the page. For advice on product suitability for your project or to request a quantity discount quotation, please call us on +4402038839057, email sales@insulationbee or use Live Chat - Lowest UK Insulation Prices.