44.5mm Unilin XT/TL Insulated Plasterboard

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

44.5mm Thin-R Thermal Liner XT/TL Insulated Plasterboard combines a Unilin 35mm PIR insulation core with composite kraft facings bonded to 9.5mm tapered edge plasterboard. A proprietary adhesive system secures the layers together for a unified composite panel.

Engineered for internal wall applications, this product features an integral vapour control layer within the composite kraft facing to minimise condensation risk. The Thin-R Thermal Liner delivers substantial thermal performance alongside drylining capabilities in a single installation, making it ideal for new builds and refurbishment schemes.

Properties

Brand: Unilin

Thickness: 44.5mm

Model: 44.5mm XT/TL Dot&Dab

Dimensions: 2400mm x 1200mm x 44.5mm

Compressive Strength: 150 kPa

Density: 30-32 Kg/m3

Material: PIR core ǀ Gypsum plasterboard

Profile: Tapered edge plasterboard

R-Value: 1.65 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. Combined insulation and drylining in a single application
2. Integral vapour control layer for condensation prevention
3. Minimal insulation thickness requirement
4. Versatile solution for multiple wall insulation scenarios

About

The 44.5mm Thermal Liner XT/TL delivers comprehensive thermal insulation and drylining performance in one operation, making it the preferred choice for new construction and renovation work. It enhances your home's energy efficiency whilst reducing heating costs and creating a more comfortable indoor environment.

This 44.5mm Insulation Board is chemically stable and manufactured with a zero Ozone Depletion Potential (ODP) blowing agent and minimal Global Warming Potential (GWP), ensuring safe application.

Upgrading your home's thermal performance offers substantial advantages, including lower energy bills and enhanced comfort levels. Thin-R Thermal Liner represents an effective pathway to achieving improved energy efficiency in 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 44.5mm XT/TL insulated plasterboards (35mm insulation + 9.5mm plasterboard) are composite building materials that integrate plasterboard with an insulation layer, typically PIR-based. The insulation bonds to the plasterboard, creating a multi-purpose panel offering both thermal performance and a finished surface. These products are widely used in construction to enhance thermal and sound insulation properties whilst streamlining the installation process. Common applications include walls, ceilings, and floors, with options available in various sizes and thicknesses to match specific building needs.

Info

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