84.5mm Unilin Thin-R XT/TL-MF Drylining Board

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

This 84.5mm XT/TL-MF Thin-R Thermal Liner combines a 75mm PIR insulation layer with composite foil facing bonded to 9.5mm tapered edge plasterboard. Designed for mechanically fixed applications, this composite panel delivers both thermal insulation and drylining in a single step, making it ideal for internal walls, sloped roofs, and ceilings.

The 84.5mm 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 is engineered to deliver superior thermal performance and streamlined installation, making it the go-to choice for both new builds and refurbishment work.

Properties

Brand: Unilin

Thickness: 84.5mm overall

Model: 84.5mm XT/TL-MF Drylined

Dimensions: 2,400mm x 1,200mm x 84.5mm

Compressive Strength: 150 kPa

Density: 30-32 Kg/m3

Length: 2400mm

Material: PIR core ǀ Gypsum plasterboard

Profile: Tapered edge plasterboard

R-Value: 3.48 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 84.5mm Thermal Liner XT/TL-MF delivers comprehensive thermal insulation and drylining in a single operation, making it the preferred choice for new construction and refurbishment schemes. This solution enhances your home's energy efficiency while delivering benefits such as lower heating bills and improved comfort levels.

The 84.5mm Insulation Board is chemically inert and manufactured using a blowing agent with zero Ozone Depletion Potential (ODP) and minimal Global Warming Potential (GWP), ensuring safe and environmentally responsible use.

Upgrading your home's thermal performance offers substantial advantages, including reduced energy expenditure and enhanced living comfort. The Unilin XT/TL-MF Thermal Liner represents an effective solution for achieving greater energy efficiency and sustainability in your property.

The PIR board also delivers fire resistance benefits through continuous adhesive ribbons, particularly around vulnerable areas such as window and door openings.

What are Insulated Plasterboards?

The 84.5mm XT/TL-MF insulated plasterboards (75mm insulation + 9.5mm plasterboard) combine plasterboard with an integrated insulation layer, typically manufactured from PIR Insulation. The insulation core is bonded to the plasterboard, creating a unified, multi-purpose panel that offers both thermal performance and a finished surface. These panels are widely used in construction to enhance thermal and sound insulation, whilst also streamlining and accelerating the installation process. Common applications include walls, ceilings, and floors, with a range of sizes and thicknesses available to meet diverse building specifications.

Info

Browse our Unilin stock and refine by thickness or coverage using the filters on the left. For guidance on product suitability for your project or to request a bulk discount quotation, contact us on +4402038839057, email sales@insulationbee or use Live Chat - Lowest UK Insulation Prices.