50mm Unilin XT/CW Partial Fill Cavity Insulation

The 50mm Unilin Thin-R XT/CW Partial Fill Cavity Wall (T&G) system features engineered tongue and grooved joints with pre-formed corners. This advanced design delivers continuous insulation coverage whilst reducing thermal bridging.

Purpose-built for conventional masonry walls, the 50mm Unilin XT/CW Cavity Wall (T&G) system meets rigorous thermal performance requirements. It delivers outstanding thermal efficiency whilst preserving a residual cavity space, offering superior resistance to wind-driven rain penetration.

Our XT/CW is available in Square Edge and Tongue and Grooved versions. The 50mm Unilin XT/CW was previously known as 50mm Xtratherm XT/CW.

Product Specification

Brand: Unilin / Xtratherm®

Thickness: 50mm

Model: 50mm XT/CW Cavity Wall Insulation Square Edge

Weight: 7.29kg

Dimensions: 1,200mm x 450mm x 50mm

Density: 30Kg/m3

Length: 1200mm

Width: 450mm

Board Coverage: 0.54 m²

Pack Coverage: 4.86 m²

Material: Polyisocyanurate (PIR)

Profile: Square Edge

R-Value: 2.27 m2K/W

Thermal Conductivity: 0.022 W/mk

Vapour Resistivity: 100 MNs/gm

Surface Spread of Flame: Class 1

Compressive Strength: >120kPa

Applications: Cavities ǀ Masonry Walls

Inner facing: Foil facing

Outer facing: Foil facing

BBA Certified: Yes (No. 08/4613)

Features: Lightweight ǀ Easy to handle and install

Important Features From Our 50mm XT/CW Partial Fill:

1. Robust tongue and groove jointing system.
2. Corner panels and cavity closers reduce thermal bridging.
3. Preserves residual cavity for optimal thermal performance.
4. Unrestricted exposure capability.
5. Low emissivity foil facings enhance Cavity insulation performance.

Info

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