52.5mm Unilin Insulated Plasterboard XT/TL-MR

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

This 52.5mm XT/TL-MR Thermal Liner combines a Unilin 40mm PIR insulation core with composite foil facing, bonded to 12.5mm tapered edge moisture resistant plasterboard. It delivers insulation and drylining in a single composite panel, ideal for internal walls, sloped roofs, and ceilings. Installation options include both Dot&Dab and mechanical fixing methods.

The 52.5mm Insulated Plasterboard features a PIR rigid insulation foam core bonded to 12.5mm green moisture resistant plasterboard. Engineered for internal building areas with high humidity conditions, it accepts plaster finishes or direct decoration without additional preparation.

Properties

Brand: Unilin

Thickness: 52.5mm overall

Model: 52.5mm XT/TL-MR Moisture Resistant

Dimensions: 2,400mm x 1,200mm x 52.5 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: 1.87 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

This 52.5mm Thermal Liner XT/TL-MR delivers comprehensive thermal insulation and drylining performance in a single installation step. Widely chosen for newbuild and refurbishment applications, it enhances your home's energy efficiency whilst reducing heating costs and creating more comfortable living spaces.

The 52.5mm Insulation Board is chemically inert and manufactured with a blowing agent featuring zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP), making it a responsible choice for environmentally conscious projects.

Upgrading your home's thermal performance delivers substantial advantages, including lower energy bills and enhanced comfort levels. The Unilin XT/TL-MR Thermal Liner represents an effective solution for achieving improved energy efficiency and building performance standards.

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 52.5mm XT/TL-MR insulated plasterboards ( 40mm insulation + 12.5mm Moisture plasterboard ) combine plasterboard with an integrated insulation layer, typically manufactured from PIR Insulation. The insulation layer bonds to the plasterboard, creating a single multi-functional panel offering both thermal performance and a finished surface. These panels improve thermal and sound insulation whilst streamlining installation timescales. Common applications include walls, ceilings, and floors, with options available in various sizes and thicknesses to match specific building requirements.

Info

Browse our Unilin stock and filter by thickness or coverage on the left-hand side of the page. For project-specific product advice or bulk quotations, contact us by phone on +4402038839057 , email sales@insulationbee or Live Chat - Lowest UK Insulation Prices.