PIR Insulation Board

PIR insulation board, also known as Polyisocyanurate, performs as great thermal insulation. A variety of sizes are available online.


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  • Celotex PIR Cavity Wall Insulation Celotex PIR Cavity Wall Insulation

    Celotex PIR Cavity Wall Insulation

    £6.73 - £15.84 (Ex VAT)
    £8.08 - £19.01 (Inc VAT)
    The Celotex CW4000 range are high performance insulation boards for Cavity Walls. It features low emissivity foil facings giving improved thermal insulation performance within cavity air spaces, when compared to typical PIR products. This PIR insulation...

PIR Insulation Board

What are PIR Boards?

PIR stands for Polyisocyanurate and it is a rigid form of thermal insulation that is manufactured from plastic to create a foam.

PIR was introduced to the market in the 1960s, as an advanced replacement to PUR (Polyurethane) Boards.

PIR Insulation is suitable for use in a wide range of applications:

  • Walls – Ecoliner products are suitable for insulating and drylining internal walls, whilst Eco-Versal offers timber frame walls thermal insulation with both faces including aluminium foil. As the name suggests, the Eco Cavity is used in Cavity/Masonry Walls and are designed to work with the typical dimensions of brick and block.
  • Flooring – Suitable for most types of flooring including timber, solid and concrete, as well as suspended flooring, it is crucial to ensure that floors are fully insulated to tackle the problem of heat rising.
  • Lofts – Loft spaces are a void that is the most common cause for heat loss, so choosing a good form of insulation such as PUR or PIR will help to save you money, whilst ensuring that your home is energy efficient.
  • Eco-Versal is a popular choice of PIR insulation because it is effective at insulating a wide range of areas of your home including pitched roofing, walls, loft ceiling, and floors.

How to guides

What is the Green Homes Grant?

The £2 billion grant aims to encourage homeowners to make their homes more energy efficient, benefitting the environment as well as protecting and creating jobs.

Insulation for every application

Unsure how to keep your keep your heating costs down? Read this article on types of insulation and more.