Kingspan Thermawall TW50 PIR Insulation Board (Cavity Wall) 1200 × 450mm – 100mm (Pack of 5, 2.7m²)
Kingspan Thermawall TW50 PIR Insulation Board (Cavity Wall) 1200 × 450mm – 100mm (Pack of 5, 2.7m²)In stock
Minimum order £400 ex VAT, free delivery in England · Mainland Wales & Scotland: minimum order £400 ex VAT + £40 + VAT delivery
Delivery timing depends on stock and location; contact us before ordering if your project has a deadline. Full delivery rules
Spread the cost: pay in 3 with Klarna, PayPal or Shop Pay at checkout Subject to status.
Bulk orders? Call 03330 908479 or contact us for a bulk quote.
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Delivery
Minimum order £400 ex VAT, free delivery in England · Mainland Wales & Scotland: minimum order £400 ex VAT + £40 + VAT delivery · Full delivery rules
- Free delivery with forklift offload
- Minimum order £400 ex VAT on insulation, plasterboard & drylining
Minimum order applies: add £400.00 ex VAT of these items to reach the £400 ex VAT minimum order.
Delivery timing depends on stock and location; contact us before ordering if your project has a deadline. Full delivery details · Urgent courier quote (extra charge) · 03330 908479
Technical datasheet (PDF) – opens the manufacturer's document in a new tab
BBA certificate (PDF) – 14/5133 – opens the BBA Agrément Certificate in a new tab
Safety data sheet (PDF) – opens the manufacturer's safety data sheet in a new tab
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- Genuine manufacturer stock
- Trade pricing, shown ex VAT
- Call 03330 908479 for bulk quotes
Kingspan Thermawall TW50 is a PIR cavity wall board (PIR core, composite foil facings) for partial-fill masonry cavity walls. It has a declared thermal conductivity of 0.022 W/mK and, at this thickness, a thermal resistance of 4.50 m²K/W according to the manufacturer's datasheet. Each pack contains 5 boards covering 2.7m².
Specifications
| Brand | Kingspan |
|---|---|
| Thickness | 100mm |
| Board size (L × W) | 1200 × 450mm |
| Material | PIR core, composite foil facings |
| Thermal conductivity (λ) | 0.022 W/mK |
| Thermal resistance (R-value) | 4.50 m²K/W |
| Reaction to fire | Euroclass F |
| Product standard | BS EN 13165 |
| BBA certificate | 14/5133 |
| Boards per pack | 5 |
| Coverage per pack | 2.7m² |
| Sold as | Pack of 5 boards (2.7m²) |
Delivery
Free delivery to England on every order; minimum order £400 + VAT. Delivered by Moffett lorry (forklift offload); someone must be present to receive it.
Downloads & technical information
- Kingspan Thermawall TW50 technical datasheet (PDF)
- Kingspan Thermawall TW50 Declaration of Performance (PDF)
- Kingspan Thermawall TW50 BBA certificate (PDF)
- Kingspan product page (manufacturer website)
See the full range of Kingspan insulation boards.
FAQs
Is the price per board or per pack?
The price shown is for one pack of 5 boards covering 2.7m².
How many do I need?
Divide the area to be covered (m²) by 2.7m² and round up, then allow around 10% extra for cutting and waste.
What are the delivery charges?
Free delivery to England on every order; minimum order £400 + VAT. Delivered by Moffett lorry (forklift offload); someone must be present to receive it. Delivered in England only. We do not deliver to Northern Ireland or the Scottish islands.
Where can I find U-values and installation guidance?
See the manufacturer documents linked in the Downloads & technical information section above, or contact our team for help.
| BBA Agrément Certificate | 14/5133 |
|---|
Quick answers
- What size is Kingspan Thermawall TW50 PIR Cavity Wall Board 1200 × 450mm – 100mm and how much does it cover?
- Size: 1200 × 450mm; thickness: 100mm; coverage: 2.7m²; sold as: Pack of 5 boards (2.7m²); boards per pack: 5. Prices are shown ex VAT.
- What is Kingspan Thermawall TW50 PIR Cavity Wall Board 1200 × 450mm – 100mm used for?
- Kingspan Thermawall TW50 is a PIR cavity wall board (PIR core, composite foil facings) for partial-fill masonry cavity walls.
- What is the thermal and fire performance of Kingspan Thermawall TW50 PIR Cavity Wall Board 1200 × 450mm – 100mm?
- According to the manufacturer's data listed on this page: declared thermal conductivity (λ) 0.022 W/mK; thermal resistance (R-value) 4.50 m²K/W; reaction to fire Euroclass F.
- What does delivery cost and is there a minimum order?
- Delivery is free to England with a minimum order of £400 ex VAT (insulation, plasterboard and drylining can be combined to reach the minimum). We deliver to England only. Call 03330 908479 or email sales@insulationwarehousedirect.co.uk for help or bulk quotes.
Thickness & R-value table – this product: R 4.50 m²K/W
Thickness & R-value table – this product: R 4.50 m²K/W
Kingspan Thermawall TW50 PIR Cavity Wall Board – all 6 thicknesses we stock.
| Thickness | λ (W/mK) | R-value (m²K/W) |
|---|---|---|
| 40mm | 0.022 | 1.80 |
| 50mm | 0.022 | 2.25 |
| 60mm | 0.022 | 2.70 |
| 70mm | 0.022 | 3.15 |
| 75mm | 0.022 | 3.40 |
| 100mm this product | 0.022 | 4.50 |
R-value = thickness (m) ÷ thermal conductivity λ, using the λ declared for each product, rounded down to the nearest 0.05 m²K/W. Always check the manufacturer's declaration of performance and your U-value calculation for Building Regulations.
Delivery information
Delivery information
Minimum order £400 ex VAT. Free delivery in England. Mainland Wales and Scotland: £400 ex VAT minimum plus £40 + VAT delivery.
Insulation, plasterboard, drylining, ceilings, timber, aggregates and cement. Separately delivered ranges have separate minimums. Access panels and Evolution fixings have their own delivery rules.
Delivery timing depends on stock and location; contact us before ordering if your project has a deadline.
