77.5mm Unilin Insulated Plasterboard XT/TL-MR

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

The 77.5mm XT/TL-MR Thin-R Thermal Liner (Moisture Resistant) features a Unilin 65mm PIR insulation core bonded to 12.5mm tapered edge moisture resistant plasterboard. This composite insulated panel works for internal walls, sloped roofs, and ceilings. Installation options include both Dot&Dab and mechanically fixed methods.

The 77.5mm Insulated Plasterboard combines a PIR rigid insulation foam core with 12.5mm green moisture resistant plasterboard. This construction suits internal building areas exposed to high humidity, providing an ideal base for plaster finishing or direct decoration.

Properties

Brand: Unilin

Thickness: 77.5mm overall

Model: 77.5mm XT/TL-MR Moisture Resistant

Dimensions: 2,400mm x 1,200mm x 77.5 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: 3.01 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 77.5mm Thermal Liner XT/TL-MR delivers comprehensive thermal insulation and drylining in a single step, making it the preferred choice for new construction and renovation work. It enhances your home's energy performance while delivering benefits such as lower heating expenses and enhanced comfort levels.

The 77.5mm Insulation Board is chemically stable and safe in use, manufactured with a blowing agent featuring zero Ozone Depletion Potential (ODP) and minimal Global Warming Potential (GWP).

Upgrading your home's thermal efficiency brings substantial advantages, from reduced utility bills to improved comfort. The Unilin XT/TL-MR Thermal Liner represents a practical solution for achieving better energy performance and a warmer living environment.

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

What are Insulated Plasterboards?

The 77.5mm XT/TL-MR insulated plasterboards (65mm insulation + 12.5mm moisture plasterboard) combine plasterboard with an integrated insulation layer, typically constructed from PIR Insulation. The insulation layer bonds directly to the plasterboard, creating a unified panel that serves dual functions—thermal insulation and finished surface. These panels are widely used in construction to enhance thermal and sound insulation, whilst streamlining and accelerating installation. 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 use the left-hand filters to narrow by thickness or coverage. For project-specific advice or bulk pricing enquiries, contact us on +4402038839057, email sales@insulationbee, or use Live Chat - Lowest UK Insulation Prices.