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Kooltherm K108 Cavity Insulation Board Kingspan 75mm (3.24m²/pack)

Kooltherm K108 Cavity Insulation Board Kingspan 75mm (3.24m²/pack)
Kooltherm K108 Cavity Insulation Board Kingspan 75mm (3.24m²/pack)
Kooltherm K108 Cavity Insulation Board Kingspan 75mm (3.24m²/pack)
Kooltherm K108 Cavity Insulation Board Kingspan 75mm (3.24m²/pack)
Kooltherm K108 Cavity Insulation Board Kingspan 75mm (3.24m²/pack)
Kooltherm K108 Cavity Insulation Board Kingspan 75mm (3.24m²/pack)
Kooltherm K108 Cavity Insulation Board Kingspan 75mm (3.24m²/pack)
  • Kingspan Kooltherm K108 Partial Fill Cavity Insulation Board 75mm
  • Premium performance lower lambda (0.019 W/mK) cavity insulation
  • Significantly increases the thermal resistance of the cavity walls
  • Kooltherm® Kingspan K108 Phenolic Cavity Board 450mm x 1200mm
  • Achieves the same U-value as an alternative products with a thinner board
Estimated delivery:
In Stock
£ 152.70
Ex VAT: £ 127.25
  • Brand: Kingspan®
  • Model: 75mm Kooltherm® K108
  • Weight: 9.98kg
  • Dimensions: 1,200mm x 450mm x 75mm
  • SKU: 75mm K108
  • Product code: P1-2494
  • MPN: 75mm Kooltherm® K108

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75mm Kooltherm K108 Kingspan Partial Fill Cavity Wall Insulation Board is a high-performanc phenolic cavity wall insulation board with certified thermal conductivity (lambda-value) as low as 0.019W/mK.

K108 Phenolic Cavity Board 75mm x 450mm x 1200mm is a one of the thinnest commonly used insulation for partial fill cavity walls providing ultra low thermal conductivity that can maximise usable internal floor space.

Kooltherm K108 by Kingspan has superior performance fibre-free phenolic rigid thermoset insulation core faced on both sides with low emissivity foil that significantly increases the thermal resistance of the cavity.

This product resists moisture penetration, maintains a clear cavity and thinner walls therefore can allow more natural daylight into your building.

Kingspan K108 Kooltherm is a lightweight cavity insulation board that is easy to transport, handle and install.

If correctly installed, Kingspan Kooltherm® K108 can have an indefinite life.

Its durability depends on the supporting structure and the conditions of its use.

Under System 4 AVCP, Kooltherm K108 has a Euroclass rating of F.




Thickness: 75mm

Length: 1200mm

Width: 450mm

Board coverage: 0.54m²

Pack coverage: 3.24m²

Material: Rigid thermoset phenolic insulation

Thermal Conductivity: 0.019 W/mK

Thermal resistance (R-value): 3.95 m2K/W

Compressive strength: 100kPa

Profile: Square Edge

Facings: low emissivity composite foil facings

Fire Classification: Euroclass rating of F


Kingspan Kooltherm® K108 Features:

 · Maintains clear cavity.

 · Resists moisture penetration.

 · Unaffected by air infiltration.

 · Easy to handle and install.

 · Non-deleterious material.

 · Advanced partial-fill cavity wall insulation.

 · Maximise lettable space and lifetime property value.

 · Allow more natural daylight into your building

 · One of the thinnest commonly used cavity insulation.

 · Premium performance rigid thermoset phenolic insulation core.

 · Certified thermal conductivity as low as 0.019 W/mK.

 · Low emissivity foil facings significantly increase the thermal resistance of the cavity.

 · Meets NHBC technical requirements when used with a 50mm cavity.


*Further information may be found in our Downloads section.

Fairly easy access to all PDF files.

Datasheet ǀ Declaration of Performance - DoP ǀ BBA Certificate ǀ Installation Guide ǀ Certificates ǀ Brochure ǀ SPEC Sheet 

*Special Product - Non returnable cancelable.

Board covarage 3.24 m2
Colour Light Pink | Silver
Compressive Strength 100kPa
Length 1200mm
Material Rigid thermoset phenolic insulation core
Pack Coverage 3.24m2
Pack Quantity 6 boards
Profile Square edge
R-Value 3.95m2K/W
Size 75mm x 450mm x 1200mm
Thermal Conductivity 0.019 W/mK
Thickness 75mm
Weight 9.98kg
Width 450mm
Fire Classification Euroclass rating of F
Coverage 0.54m2 / board
Finish Low emissivity composite foil facings
Quantity 6 sheets
Application Temperature from +5 °C to +25 °C
Shipping method Articulated Vehicle ǀ Courier
Applications Partial fill cavity wall insulation
BBA Certified Yes
ETA Notification Yes
Features Advanced partial fill cavity wall insulation solution
Manufacturer Kingspan Kooltherm®

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We deliver insulation materials to Mainland UK only. Deliveries to Highlands, Northern Ireland, Isle of Wight etc.. might be possible at additional cost.
We offer free delivery on most of the orders above £300 (excluding VAT) (except special products - shipping cost via courier - products marked ''Request A Quote'')

Delivery of some insulation materials might be extended due to the current situation (Covid-19, stock shortages, allocations).
If you need materials quickly please contact us - we will do our best to help you source materials needed.

We do not deliver on weekends and bank holidays. Sometimes we can deliver on Saturdays - please check with us before placing the order.
If you need any further information please contact us tel. 02081910776

We can help to calculate price per m2 or linear meter (one meter in length) cost, please just contact us via phone 02081910776, email or live chat. Alternatively, you can work it out yourself quickly and easily: to get cost per meter square please divide price shown in orange area by ''Required area (m2)'' Example price of £28.80 divided by board coverage 2.88m2 = cost of £10.00 per m2.


No matter whether you choose a local installer or a national company, there’s a few tips to help you find the right installer for your home insulation improvements, such as asking for recommendations and making sure that they’re part of a certification scheme. This makes sure that they have the right skills and standards of workmanship to carry out the installation, and you can be sure that they know exactly what they are doing.


1. Thermal inspection picture in portfolio

It’s worth seeing a installer’s previous work. There’s no harm asking if you can see any properties nearby that they’ve installed insulation in. Best way would be to see Infrared Thermal Imaging Inspections. Thermal cameras spot small, but key changes in temperature in different areas of a house, identifying problematic areas that the human eye never could and some that a visual inspection could only hypothesize.

2. Reviews

Along with checking recommendations and previous work, finding reviews online can often be a great way to find out if they provide a good service or not. However, it’s best not to solely rely on reviews you may find or review websites, as there’s no controlling who writes them.

3. Compare prices

Comparing prices will also ensure companies can’t take advantage of you and give you a fair price. 

4. Word of Mouth

The best way to find a great insulation installer is through recommendations. Make sure you ask friends and family. They will most likely give you their honest opinion and can tell you from first hand experience.


Whether you require a wall, cladding, external wall, loft or floor insulation fitted, you can find and hire your local insulation installers from popular UK web pages. A simple internet search will return thousands of potential installers near your area.



We are the stockist of construction materials and related products for both trade and DIY from most recognizable brands in the UK like Cordek, RCM, Promat, Rockwool, Isover, Celotex, Xtratherm, Ursa, Low-E, Cedral, Kingspan, Dufaylite, British Gypsum, K-rend, Ecotherm, Iko enertherm, Kay-Metzeler, Terrawool to allow you to complete your insulation job on time at competitive prices and the highest standards.


Whether you are a large company or a DIYer, if you need a large amount of insulation materials, we can offer quantity discounts at the best prices. Please contact us and our friendly customer service will try to find the best and cheapest solutions for you. We value your time and we will try to deliver the products as soon as possible at a reasonable price to your construction site or house. The UK's leading insulation supplier near you and your needs. Price List available upon request.
Kooltherm K108 Cavity Insulation Board Kingspan 75mm (3.24m²/pack)
Kooltherm K108 Cavity Insulation Board Kingspan 75mm (3.24m²/pack)
£ 152.70