Kingspan Thermawall TW50 PIR Wall Insulation Board (1200mm x 450mm)
Kingspan Thermawall TW50 PIR Wall Insulation Board (1200mm x 450mm) - 50mm is backordered and will ship as soon as it is back in stock.
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Kingspan Thermawall TW50 PIR Wall Insulation Board (1200mm x 450mm) is a high-performance foil-faced insulation board designed for use in timber and steel frame wall systems. With thermal conductivity as low as 0.022 W/m·K, it enables thinner wall constructions that meet Building Regulations. The board is lightweight, easy to handle, and suitable for both new builds and refurbishments. It provides reliable insulation while reducing on-site time and waste. Each board covers 0.54m². At 75mm thickness, the board weighs approximately 2,200 grams.
Key Features
- Low thermal conductivity: 0.022 W/m·K
- Foil-faced both sides for added thermal efficiency
- Designed for timber and steel frame walls
- Board size: 1200mm x 450mm (covers 0.54m²)
- Thicknesses: 40mm to 100mm
- Lightweight and easy to install
- Rated to EN 13165 and BBA certified
- Manufacturer: Kingspan
- Datasheet

Description
Description
Kingspan Thermawall TW50 PIR Wall Insulation Board (1200mm x 450mm) is a high-performance foil-faced insulation board designed for use in timber and steel frame wall systems. With thermal conductivity as low as 0.022 W/m·K, it enables thinner wall constructions that meet Building Regulations. The board is lightweight, easy to handle, and suitable for both new builds and refurbishments. It provides reliable insulation while reducing on-site time and waste. Each board covers 0.54m². At 75mm thickness, the board weighs approximately 2,200 grams.
Key Features
- Low thermal conductivity: 0.022 W/m·K
- Foil-faced both sides for added thermal efficiency
- Designed for timber and steel frame walls
- Board size: 1200mm x 450mm (covers 0.54m²)
- Thicknesses: 40mm to 100mm
- Lightweight and easy to install
- Rated to EN 13165 and BBA certified
- Manufacturer: Kingspan
- Datasheet
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Built for Framed Walls

Tested and Certified
Manufactured to High Standards

Compact Coverage
Ideal for New and Existing Walls
Our customers tell it better than we do!
Excellent Delivery Service
Order arrived early in morning, delivery staff were excellent and able to place order as close as possible to where I required it. excellent communication through out delivery and after delivery.
Great Experience
Great experience Really pleased with the way my order was dealt with and delivery arrived as advised.
Good product and service
Good product, reasonable price, great service and good customer follow-up. Would recommend and use again.
Great Company
Great company, great product. Delivery was very speedy and items was delivered professionally by a very helpful driver. Would highly recommend.
Great quality wood and fast delivery
Great quality wood and fast delivery The company reached out to make sure that everything was good and the delivery went fine
Excellent service from a great company
Ordered 2T of midnight blue slate chipping (2 pallets of 50 bags each) Very nice product at a great price. Contacted quickly after order to arrange a suitable delivery date. Delivery was as arranged. Customer service is excellent including follow up call to ensure everything went well. All in all I would highly recommend Armstrong Cheshire.
Great Customer Relations
Due to a mistake in communication ( mostly my mistake) the first delivery of bulk aggregate went to an address I used to live at. After asking to have a replacement delivery to the correct address Armstrong Cheshire re-scheduled the delivery within 3 days and with fantastic customer relations. I cannot recommend this company enough.
Ultra Fast Delivery
Ultra fast delivery, technically superlative company, their products are light years ahead of all others. Unbelievable prices. I have been in construction for nearly 70 years now and am still working every day. This company is why I keep getting up in a morning. Thank you dear sirs/ Madam for making life easier
Steel Lintel
Easy to pick product online, said 10 days delivery but got the product in 4 days, excellent service and prices