The 140mm IKO Enertherm ALU PIR Insulation Board delivers high-performance thermal insulation with a rigid polyisocyanurate foam core that contains no CFCs, HCFCs, or HFCs. Featuring dual-sided aluminium facing with seven layers of reflective cladding, this 140mm Insulation Board provides exceptional durability against water ingress, mechanical stress, corrosion, and moisture damage in demanding environments.
Brand: IKO Enertherm®
Thickness: 140mm
Length: 2400mm
Width: 1200mm
Dimensions: 2,400mm x 1,200mm x 140mm
MPN: 30 IKO ALU
Density: 32 kg/m3
Compressive strength at: 10% deformation: 175kPa (17.5ton/m²)
R-Value: 6.35m2K/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
This 140mm PIR board suits external walls, pitched roofs, floors, internal walls, inverted roofs, metal roofs, and flat roofs, delivering outstanding thermal performance across diverse applications. The superior insulation properties boost energy efficiency and reduce heating or cooling costs—a significant advantage in today's energy-conscious climate. These boards are also environmentally responsible, containing no CFCs, HCFCs, or HFCs, making them a sustainable choice for your project.
Pairing the 140mm PIR insulation board with Roof Membranes is straightforward, and the boards retain their insulating performance and structural integrity over time thanks to excellent dimensional stability. Rot and mould resistance further extends the product lifespan. The combination of high thermal values and slim profile reduces overall build thickness, maximising usable space in roofs, floors, and cavities.
IKO Enertherm incorporates Micro Cell Technology (MCT), a proprietary advancement combining optimised raw materials and production methods to create a refined cell structure with distinct advantages.
Shape retention: These boards maintain dimensional stability longer than standard PIR Boards, preventing cold bridging and preserving insulating properties throughout their service life.
Moisture resistance: MCT technology delivers very low long-term water absorption (< 0.6%) compared to alternative materials. The 140mm IKO insulation boards remain rot and mould-proof, maintaining their thermal value without weight gain from moisture uptake.
Pressure insulation: Exceptional pressure resistance stems from the boards' high elasticity and flexible cells. They withstand foot traffic without rupturing or permanent indentation.
Browse our complete Iko Enertherm range and filter by thickness or coverage. For project suitability advice or quantity discount quotations, contact us on +4402038839057, email sales@insulationbee, or use Live Chat for the lowest UK Insulation prices.













