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 construction delivers continuous insulation performance and reduces thermal bridging effectively.

Purpose-built for traditional masonry walls, the 50mm Unilin XT/CW Cavity Wall (T&G) system meets rigorous thermal performance standards. It delivers superior thermal efficiency whilst preserving a residual cavity, offering robust defence against 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 Tongue & Groove

Weight: 7.29 kg

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: 1.82 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 for secure assembly.
2. Corner panels and cavity closers reduce thermal bridging significantly.
3. Preserves a clear cavity for optimal thermal and moisture performance.
4. Unrestricted exposure capability.
5. Low emissivity foil facings enhance Cavity insulation efficiency.

Info

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