Fixing and buying guide

What this product is and who it is for

This is a rigid PIR insulation board suitable for builders, contractors and experienced DIY customers installing insulation in new build, refurbishment and retrofit projects. The closed-cell foam construction provides consistent thermal performance and structural stability. It is appropriate for use in walls, floors and roofs where Building Regulations compliance and reliable insulation performance are required.

Thermal and structural performance

The board delivers a thermal conductivity of 0.022 W/mK, which meets standard Building Regulations requirements for insulation performance. Compressive strength of 175 kPa ensures the board maintains structural integrity under typical building loads, making it suitable for load-bearing applications including floors and roof installations.

• Thermal conductivity: 0.022 W/mK
• Compressive strength: 175 kPa
• Closed-cell rigid foam construction
• BBA-backed product assurance

Board size, handling and fixing

Each board measures 1200 x 2400 x 70mm thickness. This size balances practical on-site handling with effective coverage per board. The foil facing provides vapour control to the installation and simplifies fixing to timber and masonry substrates. The rigid foam format allows straightforward installation without specialist equipment.

• Board dimensions: 1200 x 2400 x 70mm
• Foil-backed facing for vapour control
• Lightweight closed-cell foam for easy handling
• Suitable for fixing to walls, floors and roofs

Before you buy and install

Confirm the board thickness of 70mm meets your project specification and U-value requirements. Check that your substrate (timber, masonry or concrete) is sound, dry and level before installation. Ensure you have appropriate fixings for your application—mechanical fixings or adhesive depending on substrate type. Verify that the foil facing orientation suits your vapour control strategy. Stock availability varies by brand (Ecotherm, IKO, Mannok, Recticel, Unilin), so confirm your preferred supplier at point of order.

• Verify 70mm thickness meets your U-value and Building Regulations requirement
• Check substrate is sound, dry and level
• Confirm appropriate fixings are available for your substrate type
• Plan foil facing orientation for vapour control
• Check brand availability at time of order