IKO Enertherm ALU Full Fill Cavity Wall Insulation 90mm x 1200mm x 450mm

Key features

• Rigid polyisocyanurate (PIR) foam core for consistent thermal performance and dimensional stability
• Multi-layer aluminium foil facing on both sides provides low-emissivity thermal reflection and vapour control
• Tongue and groove edges ensure secure, gapless installation with minimal thermal bridging
• 90mm thickness suitable for standard masonry cavity widths with residual 10mm cavity for moisture management
• CFC, HCFC and HFC free blowing agents meet environmental and building regulation requirements
• Suitable for both new build and retrofit cavity wall insulation projects
• Integrated vapour control reduces need for separate membranes in many applications
• Meets building regulations thermal resistance and fire safety standards for cavity walls

Specifications

Product type

Rigid polyisocyanurate (PIR) cavity wall insulation board

Facing

Multi-layer aluminium foil composite, both sides

Board thickness

90mm

Board length

1200mm

Board width

450mm

Edge profile

Tongue and groove

Blowing agents

CFC, HCFC and HFC free

Application

Full cavity fill masonry walls

Residual cavity

10mm minimum recommended

Facing emissivity

Low-emissivity aluminium composite

Suitable for

New build and retrofit applications

Fire performance

Meets building regulations cavity wall standards

Common applications

• New build masonry cavity wall insulation with full cavity fill
• Retrofit cavity wall insulation in existing masonry properties
• Residential cavity wall thermal upgrade projects
• Commercial and industrial masonry building insulation
• Listed building and conservation area retrofit where cavity fill is appropriate
• Cavity wall projects requiring integrated vapour control
• Standard cavity widths (typically 50–100mm) in brick and block construction
• Projects requiring CFC/HCFC-free insulation materials
• Thermal performance improvement in solid wall cavities
• Applications where low-emissivity facing reduces radiant heat loss

Search keywords

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Description

IKO Enertherm ALU Full Fill Cavity Wall Insulation is a rigid polyisocyanurate foam board with multi-layer aluminium foil cladding on both sides. The board features tongue and groove edges for secure fitting and is free from CFC, HCFC and HFC blowing agents. Designed for complete masonry cavity wall insulation whilst maintaining a residual 10mm cavity to manage moisture transfer. The low emissivity aluminium composite facing provides thermal reflection and vapour control in a single product.

This cavity wall insulation board is suitable for new build and retrofit applications where full cavity fill is required. The 90mm thickness delivers effective thermal performance in standard cavity widths. Installation is straightforward with tongue and groove edge joinery ensuring minimal thermal bridging at board joints. The aluminium foil facing acts as a vapour control layer, reducing the need for separate membranes in many applications.