99.5mm Unilin XT/TL Insulated Plasterboard

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

99.5mm Thin-R Thermal Liner XT/TL Insulated Plasterboard combines a 90mm 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 insulation and drylining in a single application.

Engineered for internal wall installations, this product features an integral vapour control layer within its composite kraft facing to minimise condensation risks. The Thin-R Thermal Liner achieves excellent thermal performance whilst streamlining installation, making it an ideal choice for new builds and refurbishment schemes.

Properties

Brand: Unilin

Thickness: 99.5mm

Model: 99.5mm XT/TL Dot&Dab

Dimensions: 2400mm x 1200mm x 99.5mm

Compressive Strength: 150 kPa

Density: 30-32 Kg/m3

Material: PIR core ǀ Gypsum plasterboard

Profile: Tapered edge plasterboard

R-Value: 4.15 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

Thin-R Thermal Liner XT/TL delivers comprehensive thermal insulation and drylining performance in a single operation, making it the preferred choice for new construction and renovation work. This product enhances your home's energy efficiency whilst offering significant benefits including lower heating costs and improved comfort levels.

The Insulation Board is chemically stable and manufactured with a blowing agent featuring zero Ozone Depletion Potential (ODP) and minimal Global Warming Potential (GWP), ensuring safe handling throughout installation.

Upgrading your home's energy performance delivers substantial advantages, from reduced utility bills to enhanced living comfort. Thin-R Thermal Liner represents an effective solution for achieving these improvements and creating a more energy-efficient property.

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

What are Insulated Plasterboards?

These 99.5mm XT/TL insulated plasterboards (90mm insulation + 9.5mm plasterboard) integrate plasterboard with an insulation layer, typically manufactured from PIR material. The insulation bonds to the plasterboard, creating a unified panel that delivers both thermal performance and a finished surface. Construction applications benefit from improved thermal and sound insulation, alongside faster, simpler installation. These panels suit walls, ceilings, and floors, available in various sizes and thicknesses to match specific building needs.

Info

Browse our comprehensive Unilin range and refine by thickness or coverage using the left-hand filters. For product suitability advice or bulk quotations, contact us on +4402038839057, email sales@insulationbee, or use Live Chat for competitive UK pricing.