PIR INSULATION

High-Performance PIR Insulation Boards for Every Build

Upgrade your construction project with premium PIR insulation boards designed for superior thermal efficiency and energy savings. Lightweight, durable, and easy to cut, PIR boards are ideal for pitched roofs, internal wall insulation, cavity walls, floors, and more. With exceptional thermal performance and low thermal conductivity, these boards meet the demands of both DIY enthusiasts and professional contractors.

We stock trusted brands like Kingspan, Celotex, and Mannok, offering rigid PIR insulation cores, aluminium foil facings, and superior fire resistance for unmatched performance. Whether you're tackling a timber frame, solid masonry walls, or flat roofs, we’ve got the perfect solution to reduce energy costs and boost efficiency.

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Browse our extensive range of PIR insulation products and transform your next project. Buy online today and enjoy fast delivery right to your site!

PIR (polyisocyanurate) insulation boards are a top choice for thermal insulation in the construction industry thanks to their closed-cell structure, low thermal conductivity, and exceptional thermal performance. Whether you’re working on residential homes, commercial projects, or industrial builds, PIR boards deliver reliable insulation that stands out in terms of both efficiency and cost-effectiveness.

  • Superior Energy Efficiency
    PIR insulation boards excel in reducing heat loss, helping to maintain a comfortable indoor temperature year-round. With a thermal conductivity as low as 0.022 W/mK, these boards provide excellent U-values, meaning less energy is required to heat or cool a building. This makes them a smart choice for anyone looking to lower energy costs while boosting energy efficiency.
  • Lightweight and Easy to Install
    Contractors and DIYers alike prefer PIR insulation for being lightweight and simple to handle. Whether you’re cutting boards to fit cavity wall studs, timber joists, or a concrete slab, installation is quick and easy.
  • Durable with Long-Term Benefits
    PIR insulation is made with a rigid thermal insulation core that withstands wear and tear while delivering consistent performance over time. Its two aluminium foil facings or mineral glass coatings help reinforce its durability and enhance thermal efficiency.
  • Eco-Friendly Features
    These insulation boards come with zero ozone depletion potential and low-emissivity foil facings, ensuring they align with sustainability goals in building construction.

PIR insulation is one of the most versatile solutions available for modern construction projects, thanks to its adaptable nature and high thermal performance. Common applications include:

  • Internal Wall Insulation
    Installed on solid masonry walls or timber frame studs, PIR insulation reduces heat transfer and creates a reliable thermal barrier. This makes it especially effective for solid masonry internal linings.
  • Cavity Wall Insulation
    PIR cavity wall boards act as a partial fill cavity insulation, efficiently trapping air within its closed-cell structure to enhance energy efficiency.
  • Roof Insulation
    Ideal for both pitched and flat roofs, PIR boards are compatible with timber frame constructions and can be installed beneath OSB boards or applied directly for airtight insulation.
  • Floor Insulation
    From concrete slabs to spaces between timber joists, PIR insulation boards are a go-to for floor applications, thanks to their high compressive strength and lightweight structure.

We stock a range of PIR insulation products to suit your specific project needs. Here are the top options to consider:

  • General Purpose PIR Boards
    Perfect for multi-application use, from walls to floors and roofs.
  • Celotex PIR Insulation Boards
    Designed for exceptional thermal performance and trusted for various building applications.
  • Kingspan PIR Insulation
    Offering high-quality insulation with low thermal conductivity and premium fire resistance.
  • Cavity Wall PIR Boards
    Specifically developed for cavity walls to minimise heat transfer and energy loss.

When purchasing PIR insulation, keep the following factors in mind to make the right choice:

  1. Application Requirements
    Determine whether you need PIR boards for flat roofs, cavity walls, or internal wall insulation. Each application may require a specific thickness or feature, such as two aluminium foil facings or a closed-cell structure.
  2. Thermal Ratings
    Check the material’s thermal conductivity (W/mK) value to ensure it aligns with your project objectives, such as achieving the best U-value.
  3. Brand Quality
    Select products from trusted manufacturers like Celotex or Kingspan for reliability and performance.
  4. Thickness Options
    PIR boards come in thicknesses ranging from 25mm to 150mm, making it easy to customise according to project demands. Remember, PIR boards deliver high thermal efficiency at only half the thickness of some alternative solutions.
  5. Delivery and Support
    Ensure your supplier offers fast delivery and expert advice to guide your purchase.