79.5mm Unilin XT/TL Insulated Plasterboard

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

79.5mm Thin-R Thermal Liner XT/TL Insulated Plasterboard combines a Unilin 70mm PIR insulation core with composite kraft facings bonded to 9.5mm tapered edge plasterboard using a proprietary adhesive system. This composite panel delivers both thermal performance and drylining capabilities in a single product.

Engineered for internal wall applications, this insulated plasterboard features an integral vapour control layer built into the composite kraft facing 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 projects requiring efficient thermal performance.

Properties

Brand: Unilin

Thickness: 79.5mm

Model: 79.5mm XT/TL Dot&Dab

Dimensions: 2400mm x 1200mm x 79.5mm

Compressive Strength: 150 kPa

Density: 30-32 Kg/m3

Material: PIR core ǀ Gypsum plasterboard

Profile: Tapered edge plasterboard

R-Value: 3.24 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 79.5mm Thermal Liner XT/TL delivers comprehensive thermal insulation and drylining in a single installation step, making it the preferred solution for new construction and refurbishment work. This product enhances your home's energy efficiency whilst reducing heating costs and creating a more comfortable living environment.

The 79.5mm Insulation Board is chemically inert and manufactured with a zero Ozone Depletion Potential (ODP) blowing agent and minimal Global Warming Potential (GWP), ensuring safe and environmentally responsible use.

Upgrading your home's energy efficiency delivers substantial advantages, from lower utility bills to enhanced comfort levels. Thin-R Thermal Liner is an effective solution for achieving improved thermal performance and creating a more energy-efficient property.

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 79.5mm XT/TL insulated plasterboards (70mm insulation + 9.5mm plasterboard) are composite building materials that integrate plasterboard with an insulation layer, typically PIR-based. The insulation layer bonds to the plasterboard, creating a multi-functional panel that provides thermal performance and a finished surface simultaneously. These panels are widely used in construction to enhance thermal and sound insulation, whilst streamlining installation timescales. Common applications include walls, ceilings, and floors, with various sizes and thicknesses available to meet specific building specifications.

Info

Browse our Unilin stock and refine by thickness or coverage using the left-hand filters. For project suitability advice or bulk pricing enquiries, contact us on +4402038839057, email sales@insulationbee, or use Live Chat - Competitive UK Insulation Pricing.