Unilin XtroWall Plus PIR Cavity Wall Insulation 110mm

XtroWall Plus PIR Partial Fill Cavity Wall Insulation 110mm

Key Features:
  • High performance PIR partial fill cavity wall insulation system  
  • Rigid PIR board construction for consistent performance and durability on site  
  • 110mm thickness with approx. 2.16 m² coverage per bale  
  • Engineered for improved thermal performance and reduced thermal bridging  
  • Suitable for low-energy and high-performance building applications  
€68.15
Bulky Product
Delivery in
2-3 Days
SKU
XO/XW110MMCAVIT
Brand
Unilin

XtroWall Plus is a high-performance PIR partial fill cavity wall insulation system from Unilin Insulation, designed for high efficiency, low energy and modern building standards.

It incorporates robust PIR aluminium foil facings, engineered jointing details and preformed corner solutions to reduce thermal bridging and improve installation performance.

XtroWall Plus is a partial fill cavity wall insulation system with a certified lambda value of 0.021 W/mK (Agrément declared performance approx. 0.020 W/mK), delivering excellent thermal efficiency for modern construction.

This lower lambda improves U-values and supports low-energy and Zero Carbon construction targets. Typical build-ups can achieve low U-values depending on cavity width, blockwork and finishing layers.

Building with XtroWall Plus maintains a residual cavity, offering excellent protection against wind-driven rain while improving thermal performance.

Key Features
  • Partial fill PIR cavity wall insulation system
  • Certified lambda value: 0.021 W/mK (Agrément declared approx. 0.020 W/mK)
  • Thermal resistance: approx. R-value 5.2 m²K/W (110mm, calculated from lambda)
  • Fire performance: Euroclass E
  • Compressive strength: ≥120 kPa (CS(10/Y) 120)
  • Engineered jointing for improved thermal continuity
  • Preformed corner panels & cavity closers to reduce thermal bridging
  • Clear residual cavity maintained for weather protection
  • Robust textured PIR aluminium foil facings on both sides
  • Board size: 1200mm x 450mm x 110mm
  • Coverage: approx. 2.16 m² per bale (based on manufacturer packaging data)
Technical Information
  • Product type: PIR wall insulation (partial fill cavity system)
  • Thermal conductivity (λ): 0.021 W/mK
  • Reaction to fire: Euroclass E
  • Compressive strength: CS(10/Y) 120 (≥120 kPa)
  • R-value (110mm): approx. 5.2 m²K/W (calculated)
  • Thickness: 110mm variant within XtroWall system range
Brand & Product Information
  • Brand: Unilin
  • Product line: XtroLiner / XtroWall (XO/XW range)
  • Material: PIR (Polyisocyanurate) insulation
  • Facings: Low-emissivity textured aluminium foil
Technical Downloads
Delivery Information

Delivery of this bulky product is available nationwide but will be subject to a bulk delivery charge.

Delivery charges are calculated at checkout based on delivery address.

For large volume orders, we may be able to improve delivery costs.

Call us on 0818 888 000 to discuss requirements.

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