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Multipurpose PIR Boards

We sell a wide range of multipurpose PIR boards suitable for any construction project.

From trusted brands including Kingspan and Celotex, our boards can be used for a variety of applications including flat and pitched roofs (both warm and cold), floor slabs and filling the voids between timber joist floors.

All of our PIR boards have a specification of 0.022W/mK and help meet current and future requirements of Approved Document L and Section 6, BREEAM and Code for Sustainable Homes.

Browse our PIR insulation boards below and benefit from fast delivery from our UK branches.


Simple & Easy-to-Install Multipurpose PIR Insulation Boards

Start your project in the right way with easy-to-install, high-quality & versatile PIR boards. Made from polyurethane foam, they are used in millions of homes across the UK for their exceptional insulation performance.

They are incredible for reducing the amount of heat transferred through your walls, roof, or floor which makes them a great choice for energy-efficient building designs.

We also have a wide range of insulation boards to offer, including Kingspan TP10 and Celotex TB4000 / GA4000 / XR4000 to suit your next building project. Need help choosing? Contact us for more help!

Benefits of PIR insulation boards

PIR insulation boards are ideal for anyone looking to improve the energy efficiency of their home and come with many benefits including:

  • Energy efficient - with your home well-heated, you'll save a lot of money on energy bills.
  • Lightweight and easy to install without causing any disruption to the existing structure.
  • Space efficiency - they require half the thickness of traditional insulation, making them ideal for loft insulation where you want to maximise as much storage space as possible.
  • Safety first - They also prevent mould from spreading

Trusted Supplier

UK Flat Roofing provides insulation materials to customers throughout the UK. Our nationwide shipping means you'll receive your order as soon as possible and if you place your order before 12 pm, we'll aim to dispatch your order the next day, (please see product page for more information on lead times.) With over three decades of experience, our knowledgeable team is here to help you find the right supplies for your home refurbishment project. If you have any questions, simply contact us on WhatsApp or visit our contact page.





PIR insulation boards (also known as Polyisocyanurate boards) are rigid insulation boards used for construction, with clear advantages over other insulation boards.

These high-performance insulation boards are used as thermal insulation for new and refurbished flat roof applications. These boards do not readily absorb water and have a low thermal conductivity, which minimises the insulation board thickness needed.

PIR boards are highly reliable, allowing you to use these boards in a variety of applications.

PIR boards provide excellent insulation, with thin sizes to ensure they can fit properly onto any pitched or flat roof, and lightweight properties makes them easy to handle.

In terms of durability, PIR is an exceptionally durable material, making it easy to have a positive impact on the life cycle analysis of a building.

PIR boards can be used on pitched roofs, flat roofs, floors and ceilings, offering excellent thermal performance over traditional insulation boards.