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Kingspan  |  SKU: K10850-10

50mm Kingspan Kooltherm K108 Partial Fill Cavity Insulation x 10 Boards - 1200mm x 450mm

£115.83 Ex VAT
£139.00 Inc VAT

Save on bulk insulation with our 10 sheet bulk pack of 50mm Kingspan Kooltherm K108 cavity wall insulation board.

Nationwide Delivery in 3-5 WORKING DAYS

  • £50 ex VAT Delivery
  • FREE DELIVERY OVER £500

Need a next-day or named day delivery? Call Us.


10 boards of Kingspan Kooltherm K108 advanced partial fill cavity wall insulation. It has a thermal conductivity of 0.019 W/mK and can achieve the same wall U-value as alternative products with a much thinner profile. Its low thermal conductivity can maximise usable internal floor space.

  • Thickness: 50mm
  • Board size: 1200mm x 450mm
  • Thermal Conductivity: 0.019 W/m.K
  • Coverage per board: 0.54m2
  • Application: Partial Fill cavity wall insulation

Kingspan Kooltherm K108 is a premium performance partial fill cavity wall insulation. Kingspan Kooltherm K108 Cavity Board is a premium performance insulation with a fibre-free rigid thermoset phenolic core. One of the thinnest commonly used insulation for partial fill cavity walls

As part of the Kingspan Kooltherm range, it provides a level of performance that is unrivalled in the world of rigid thermoset insulation materials with a thermal conductivity of just 0.019 W/m·K across all thicknesses.

  • Coverage (m²)
    5.4
  • Thickness
    50mm
  • Length
    1200mm
  • Width
    450mm

Do You Ship to My Address?

We deliver to most mainland UK addresses. If you are in one of the areas listed below and are unable to checkout, please give us a call to put together a custom quote.

Northern Ireland (BT), Isle of Wight (PO30-37), Isle of Man (IM), Scottish Highlands and Orkney Isles (PA, ML, EH, KA, G, KY, PH, DD, AB, IV, KW), Outer Hebrides and the Shetland Isles (HS, ZE) will incur additional charges and may also experience delivery delays.

How Much Will My Delivery Cost?

You can work out the cost of delivery on your order before checkout by heading to our Delivery Info page.

How Long Will Delivery Take?

We aim to deliver your items in 3 - 5 Working Days unless otherwise specified (eg - Sheds and Paving Kits). After you have placed your order, we will process your order and book a delivery day - which will then be sent to you via Email.

If have a specific request, please do give our team a call on 01156976800 and we will do our best to help.

What If I Need to Return Something?

If for any reason you wish to return your purchase, we will offer a refund or an exchange as long as this is requested within 14 days of receiving your order.

A manufacturer’s restocking charge may also apply on certain products such as non-stock items, which may be up to 30% of the purchase price, and you will be notified of this amount when you request a refund or exchange.

For full information visit our Returns Policy.