42.5mm Unilin Insulated Plasterboard XT/TL-MR

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

The 42.5mm XT/TL-MR Thin-R Thermal Liner (Moisture Resistant) combines a Unilin 30mm PIR insulation layer with composite foil facing and 12.5mm tapered edge moisture resistant plasterboard. This composite panel delivers both insulation and drylining for internal walls, sloped roofs, and ceilings. Installation options include Dot&Dab or mechanical fixing methods.

This 42.5mm Insulated Plasterboard features a PIR rigid insulation foam core bonded to 12.5mm green moisture resistant plasterboard. It's engineered for internal spaces with high humidity levels, such as kitchens and bathrooms, and accepts plaster finishes or direct decoration.

Properties

Brand: Unilin

Thickness: 42.5mm overall

Model: 42.5mm XT/TL-MR Moisture Resistant

Dimensions: 2,400mm x 1,200mm x 42.5 mm

Compressive Strength: 150 kPa

Density: 30-32 Kg/m3

Length: 2400mm

Material: PIR core ǀ Moisture Resistant plasterboard

Profile: Moisture Tapered edge plasterboard

R-Value: 1.42 m2K/W

Thermal Conductivity: 0.022 W/mk

Vapour Resistivity: 100 MNs/gm

Finish: Composite Kraft facings

Reaction To Fire: Euroclass B s1 d0

Applications: internal walls, sloped roofs, ceilings, Kitchen & Bathrooms.

Vapour Control Layer: Yes, build in

Fixing method: Mechanically Fixed | Dot and Dab

Features: Moisture Resistant 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 42.5mm Thermal Liner XT/TL-MR delivers comprehensive thermal insulation and drylining in a single installation step, making it ideal for new construction and renovation work. This product enhances your home's energy performance while delivering multiple advantages, including lower heating bills and enhanced comfort levels.

The 42.5mm Insulation Board is chemically stable and safe in use. It's 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 benefits, from reduced energy expenditure to improved comfort and living standards. The Unilin XT/TL-MR Thermal Liner represents an efficient solution for achieving these energy-saving objectives and strengthening your home's thermal envelope.

The PIR board offers fire-resistant properties through continuous adhesive ribbons, particularly around vulnerable areas such as window and door openings.

What are Insulated Plasterboards?

The 42.5mm XT/TL-MR insulated plasterboards (30mm insulation + 12.5mm Moisture plasterboard) combine plasterboard with an integrated insulation layer, typically manufactured from PIR Insulation. The insulation is bonded to the plasterboard, creating a unified panel that serves dual purposes: thermal insulation and finished surface. These panels are widely used in construction to enhance thermal performance 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 use the left-hand filters to narrow by thickness or coverage. For guidance 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.