50mm Unilin XtroLiner XO/CW (TG) Partial Fill Cavity Wall PIR Insulation Board - 1200mm x 450mm - Pack of 9
50mm Unilin XtroLiner XO/CW (TG) Partial Fill Cavity Wall PIR Insulation Board - 1200mm x 450mm - Pack of 9
- Product Code: A1-5039
- Delivery Time: 1-3 working days
- Brand: Unilin (prev. Xtratherm) (Tech. support: 03712221055)
- Model: 1200x450mm - 4.86m2
Our ratings on 21-10-2026:

4.8 out of 5
50mm Unilin XtroLiner XO/CW (T&G) Partial Fill Cavity Wall PIR Insulation Board - 1200mm x 450mm - Pack of 9
Length: 1200mm
Width: 450mm
Thickness: 50mm
Pack Quantity: 9
Board Coverage: 0.54m2
Pack coverage: 4.86m2
Thermal Conductivity: 0.021W/mK
R-Value: 2.35m2K/W
Compressive Strength: 120kPa
50mm Unilin XtroLiner XO/CW board has a tongue and groove core of modified polyisocyanurate (PIR) bonded to low emissivity aluminium foil facings offering excellent insulation performance with thermal conductivity. Unilin XtroLiner XO/CW board reduces the junctions prone to thermal bridging improving the thermal performance of the cavity wall. Unilin XtroLiner XO/CW is CFC & HCFC free and is manufactured under the highest standards of ISO 9001 and 14001 Quality and Environmental Management Systems.
CHARACTERISTICS
- High thermal performance rigid insulation,
- Robust tongue & groove Jointing,
- Easy to Install,
- Non-deleterious material,
- Suitable for new build and refurbishment,
- Manufactured with zero ODP blowing agent,
- Reduces Thermal Bridging,
- Reduced Risk of Condensation,
- Reaction to fire: Euroclass C s2 d0,
- Closed cell structure – moisture resistant.
APPLICATION
- Partial fill cavity walls
CERTIFICATION

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