PIR Insulation Boards
We keep a full range of PIR insulation boards in stock so you can stay on schedule. With excellent thermal performance and a slim profile, PIR is the go-to choice for roofs, walls and floors. You’ll find all the popular thicknesses here, from brands you know and trust such as Celotex — ready for fast collection or same and next-day delivery to your site.
Discover Our Full Product Range:
| Brand | Product Code | Thickness | Sheet Size |
|---|---|---|---|
| Celotex | TB4020 | 20mm | 2.4m x 1.2m |
| Celotex | TB2025 | 25mm | 2.4m x 1.2m |
| Celotex | TB4030 | 30mm | 2.4m x 1.2m |
| Celotex | TB4040 | 40mm | 2.4m x 1.2m |
| Celotex | GA4050 | 50mm | 2.4m x 1.2m |
| Celotex | GA4060 | 60mm | 2.4m x 1.2m |
| Celotex | GA4070 | 70mm | 2.4m x 1.2m |
| Celotex | GA4075 | 75mm | 2.4m x 1.2m |
| Celotex | GA4080 | 80mm | 2.4m x 1.2m |
| Celotex | GA4090 | 90mm | 2.4m x 1.2m |
| Celotex | GA4100 | 100mm | 2.4m x 1.2m |
| Celotex | XR4110 | 110mm | 2.4m x 1.2m |
| Celotex | XR4120 | 120mm | 2.4m x 1.2m |
| Celotex | XR4130 | 130mm | 2.4m x 1.2m |
| Celotex | XR4140 | 140mm | 2.4m x 1.2m |
| Celotex | XR4150 | 150mm | 2.4m x 1.2m |
| Celotex | XR4165 | 165mm | 2.4m x 1.2m |
| Celotex | XR4200 | 200mm | 2.4m x 1.2m |
What it PIR Insulation ?
Rigid polyisocyanurate (PIR) boards with foil facings, widely used across modern building fabric.
Where it’s used?
- Pitched roofs
- Flat roofs
- Solid floors
- Timber frame walls
- Internal wall lining
Why choose it?
- High thermal efficiency per mm
- Strong, lightweight board
- Easy to cut and install
- Ideal for new builds and refurbishments
Popular brands
- Celotex
- Kingspan Therma
- Recticel Eurothane
FAQ’s:
Can you deliver PIR insulation to my site?
Yes, we deliver across Watford and the surrounding areas. If you place your order before 10:00am, we’ll get your PIR boards out the same day. Anything after that will go on the next run.
Do you keep PIR insulation in stock?
Yes, we keep a wide range of Celotex PIR boards in stock. If you’re collecting, let us know and we’ll have your order ready. If you prefer delivery, we can get it straight out to your site. Speak to our friendly team to plan your next order with us.
Why should I choose PIR insulation over other types?
PIR gives you strong thermal performance without needing big build-ups, which is ideal for tight spaces in roofs, floors or walls. It’s lightweight, easy to cut, and works well across a wide range of applications.
What thickness of Celotex PIR do I need?
That depends on the construction detail and the U-value you’re working to. We stock all the common Celotex thicknesses, and if you tell us your build-up, we can point you to the right board for the spec.