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90mm Kingspan Thermaroof TR26 PIR Insulation Board 2400mm x 1200mm (8′ x 4′) Pack of 3 (8.64m2)
90mm Kingspan TR26 Thermaroof is high-performance insulation that has a fiber-free rigid thermoset polyisocyanurate (PIR) core. Suitable for flat roof application waterproofed with mechanically fixed single-ply waterproofing.
£249.28£299.14 Ex VATInc VAT£28.85£34.62 Per M2 Add to cart
Our specialist stores
Our specialist stores
90mm PIR TR26
Highly durable with exceptional thermal qualities, the 90mm PIR insulation board is suitable for general insulation.
What is 90mm PIR insulation?
90mm PIR insulation is a plastic compound made from polyisocyanurate. During production, the foam is pressed between layers of foil, where a blowing agent stretches it to a uniform thickness of 90mm.
What are 90mm PIR used for?
90mm PIR insulation is perfect for room insulation, including on:
- Walls — Use in solid masonry walls, timber-framed walls, steel-framed walls, and for wall sheathing.
- Floors — Boosts thermal performance when used as a base for different types of floors.
- Roofs — Place under, above, and between rafters in pitched roofs. For flat roofs, place between or below joists. Also great for the ceiling.
Types of 90mm PIR
We stock these popular brands:
- Recticel
- Ecotherm
- Unilin
- IKO Enertherm
- Kingspan
- Celotex
- Mannok
Our 90mm polyisocyanurate insulation is available with either aluminium foil backing or composite foil backing.
All our 90mm PIR sheets have square edging for easy cutting and installation.
Benefits of 90mm PIR insulation
- Stability — 90mm PIR insulation sheets are rigid and stable, and when used with other high-stability materials, they help enhance the overall stability of the building.
- Easy handling — These boards are easy to cut, which makes installation straightforward and quick.
- Excellent water resistance — PIR insulation has a low water absorption rate.
- Low toxicity — The materials and processes used in the manufacture of PIR insulation release minimal toxic waste, making these boards a good option for safety and environmental benefits.
Why choose our 90mm PIR?
- Wide selection — We stock as many as seven different brands to meet a wide range of insulation requirements.
- Quality products — All PIR boards on Insulation Wholesale satisfy the quality standards stipulated in the building regulations.
- Nationwide delivery — We offer kerb-side delivery across the country.
- Prompt delivery — If your delivery location is within the green spaces highlighted on our map, we’ll likely deliver your chosen boards within 2-3 days or 5 days if there’s a delay. If your location is outside the green areas, expect delivery within 7 days. (You can find the map on the Delivery Information link at the bottom of our website.)
At Insulation Wholesale, you can purchase 90mm PIR at low wholesale prices with fast delivery for most of items within 2-5 days. Competitive rates guaranteed.
FAQ
How to cut 90mm PIR insulation?
PIR is an easy-to-cut material. You can resize your 90mm PIR boards using an insulation knife or saw. If you do not have either of these, any saw or utility knife will suffice. Begin by marking where you’ll cut. Add markings along the entire length or width of the board to get a straight cut. Then go in with your cutting tool.
How to install 90mm PIR insulation?
Installing 90mm PIR insulation sheets is simple: measure and cut the board as needed. Fit the board tightly into the area to be insulated, and secure it in place using adhesive or fixings such as screws or nails. If layering your insulation boards, ensure that you add a vapour control layer to protect your insulation against water damage.
How much 90mm PIR insulation do I need?
Start by measuring the size of your work area in square metres. Divide this by the total coverage of one PIR board to find out how many boards you’ll need. Add 10-15% PIR insulation material to account for any bits you may need to cut.
