37.5mm Unilin XT/TL Insulated Plasterboard

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

37.5mm Thin-R Thermal Liner XT/TL Insulated Plasterboard combines a Unilin 25mm PIR insulation core with two composite kraft facings, bonded to 12.5mm tapered edge plasterboard using a proprietary adhesive system. This composite panel delivers thermal performance and drylining capabilities in a single installation.

Engineered for internal wall applications, this product features an integral vapour control layer on both sides to minimise condensation risk. The Thin-R Thermal Liner offers substantial thermal insulation alongside drylining functionality, making it an excellent choice for new builds and renovation schemes.

Properties

Brand: Unilin

Thickness: 37.5mm

Model: 37.5mm XT/TL Dot&Dab

Dimensions: 2400mm x 1200mm x 37.5mm

Compressive Strength: 150 kPa

Density: 30-32 Kg/m3

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: Composite Kraft facings

Reaction To Fire: Euroclass B s1 d0

Applications: Internal walls ǀ Pitched and flat roofs

Vapour Control Layer: Yes, build in

Fixing method: Adhesive bonding

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 37.5mm Thermal Liner XT/TL delivers comprehensive thermal insulation and drylining in a single operation, making it the preferred choice for newbuild and refurbishment projects. This solution enhances your home's energy efficiency whilst reducing operational costs and creating more comfortable living spaces.

This Insulation Board is chemically stable and manufactured using a blowing agent with zero Ozone Depletion Potential (ODP) and minimal Global Warming Potential (GWP), ensuring safe installation and environmental responsibility.

Upgrading your home's thermal performance delivers substantial advantages, including lower energy bills and enhanced comfort levels. Thin-R Thermal Liner represents an effective pathway to achieving superior energy efficiency throughout your property.

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

What are Insulated Plasterboards?

The 37.5mm XT/TL insulated plasterboards ( 25mm insulation + 12.5mm plasterboard ) are building materials that integrate plasterboard with an insulation layer, typically PIR-based. The insulation is bonded to the plasterboard, creating a unified panel that provides both thermal performance and a finished surface. These products are widely used in construction to enhance thermal and sound insulation, whilst streamlining and accelerating installation timescales. Common applications include walls, ceilings, and floors, with options available in various dimensions and thicknesses to meet specific building needs.

Info

Browse our comprehensive Unilin range and refine by thickness or coverage using the left-hand filters. For project-specific guidance or bulk quotations, contact us by phone on +4402038839057 , email sales@insulationbee or use Live Chat - Lowest UK Insulation Prices.