IKO Enertherm ALU 85mm PIR Insulation Board

The IKO Enertherm ALU PIR Insulation Board at 85mm thickness delivers high-performance thermal insulation with a rigid polyisocyanurate foam core that contains no CFCs, HCFCs, or HFCs. Both sides feature a gas-tight 85mm Insulation Board with seven-layer aluminium composite cladding for enhanced durability. The PIR Board undergoes rigorous testing to verify its performance against water ingress, mechanical loading, corrosion, and thermal emissivity across demanding environments.

Properties

Brand: IKO Enertherm®

Thickness: 85mm

Length: 2400mm

Width: 1200mm

Dimensions: 2,400mm x 1,200mm x 85mm

MPN: 30 IKO ALU

Density: 32 kg/m3

Compressive strength at: 10% deformation: 175kPa (17.5ton/m²)

R-Value: 3.85m2K/W

Thermal Conductivity: 0.022 W/mk

Water vapour diffusion:: PIR foam: μ = 60 – ALU facing μ > 100,000

Applications: Roofs, Walls, Floors, Timber & Steel Frame

BBA Certified: Yes, No.15/5283

Features: Multi-functional ALU PIR Insulation

By Project Type: DIY, New Build, Refurbishment

Installation Method: Loose Laid, Mechanically Fixed, Partially Bonded

Material: PIR

Facing: Aluminium composite facing on both sides

Product Colour: Silver

Product Finish: Aluminium Multi Layer Lamination

Sector: Community & Amenity, Domestic, Education, Health, Hotel & Leisure, Industrial, Mixed Use, Offices, Private Housing, Retail, Social Housing, Utilities

Substrate: Concrete, Masonry Structure, Metal, Timber (Plywood-OSB)

Fire Performance: EN 13501-1: Class E | BS 476 – p7 : Class 1

Range Of Applications

1. Rooftop: Flat Roof Insulation for timber, concrete and steel deck.
2. Sarking: pitched roof insulation (type nF with neutral felt).
3. Floor: floor insulation (underfloor heating and concrete floors).
4. Wall: cavity wall insulation.
5. Wrap: outside wall insulation (closed joints).
6. Comfort: loft insulation.
7. Comfort Easy: Loft floor insulation.

This 85mm PIR board suits external walls, pitched roofs, floors, internal partitions, inverted roofs, metal roof decks, and flat roof systems where superior thermal performance is essential. The insulation enhances energy efficiency and reduces heat loss across any application. Lower energy consumption means reduced heating and cooling bills—a significant advantage given current energy costs. The boards are also environmentally responsible, containing no CFCs, HCFCs, or HFCs, so they pose no risk to the ozone layer.

About

Pairing the 85mm PIR insulation board with Roof Membranes is straightforward, and the boards maintain their insulating properties and structural integrity throughout their service life thanks to excellent dimensional stability. The material resists rot and mould growth, extending product longevity. The combination of high thermal values and slim profile means less overall build thickness, maximising usable space in roofs, floors, and cavities.

Micro Cell Technology

IKO Enertherm features Micro Cell Technology (MCT), achieved through carefully balanced raw materials and manufacturing processes. This creates an exceptionally fine cell structure within the insulation material.

Shape retention: IKO Enertherm boards maintain dimensional stability better than PIR Boards with larger cell structures, preventing cold bridging and preserving insulation performance over time.

Moisture resistance: MCT technology delivers very low long-term water absorption (< 0.6%) compared to alternative insulation products. The PIR boards stay rot and mould-free, retaining their R-value since water uptake remains minimal.

Pressure insulation: The 85mm IKO PIR board offers outstanding load-bearing capacity through high elasticity. MCT-engineered cells resist rupture and prevent permanent indentation even under foot traffic.

Info

Browse our Iko Enertherm range and filter by thickness or coverage using the left-hand menu. For product suitability advice or bulk quotations, contact us on +4402038839057, email sales@insulationbee, or use Live Chat for the best UK Insulation prices.