34.5mm Unilin Thin-R XT/TL-MF Insulated Drylining Board

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

The 34.5mm XT/TL-MF Thin-R Thermal Liner (Mechanically Fixed) combines a Unilin 25mm PIR insulation layer with a composite foil facing, bonded to 9.5mm tapered edge plasterboard. This composite panel delivers both thermal insulation and drylining in a single product, ideal for internal walls, sloped roofs, and ceilings where mechanical fixing is required.

The 34.5mm Insulated Plasterboard features composite foil facing on both surfaces with an integrated vapour control layer to minimise condensation risk. Engineered for high-performance thermal insulation and rapid drylining installation, this mechanically fixed thermal liner suits both new builds and renovation work.

Properties

Brand: Unilin

Thickness: 34.5mm overall

Model: 34.5mm XT/TL-MF Drylined

Dimensions: 2,400mm x 1,200mm x 34.50mm

Compressive Strength: 150 kPa

Density: 30-32 Kg/m3

Length: 2400mm

Material: PIR core ǀ Gypsum plasterboard

Profile: Tapered edge plasterboard

R-Value: 1.20 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 34.5mm Thermal Liner XT/TL-MF delivers thermal insulation and drylining simultaneously, making it the go-to choice for new construction and refurbishment schemes. It enhances your home's energy performance whilst reducing heating expenses and creating more comfortable living spaces.

This 34.5mm Insulation Board is chemically stable and manufactured with a blowing agent featuring zero Ozone Depletion Potential (ODP) and minimal Global Warming Potential (GWP).

Upgrading your home's thermal performance brings tangible advantages, such as lower utility bills and enhanced comfort levels. The Unilin XT/TL-MF Thermal Liner represents a practical solution for achieving superior energy efficiency in your property.

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

What are Insulated Plasterboards?

The 34.5mm XT/TL-MF insulated plasterboards ( 25mm insulation + 9.5mm plasterboard ) integrate plasterboard with an insulation layer, typically PIR-based, creating a unified multi-purpose panel. This combination offers both thermal performance and a finished surface in one product, streamlining installation and construction timescales. Commonly applied in walls, ceilings, and floors, these boards come in various dimensions and thicknesses to match specific building specifications. They enhance both thermal and sound insulation performance.

Info

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