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50mm Kingspan Kooltherm K5 Wall Board (pack of 10)

50mm Kingspan Kooltherm K5 Wall Board (pack of 10)
50mm Kingspan Kooltherm K5 Wall Board (pack of 10)
50mm Kingspan Kooltherm K5 Wall Board (pack of 10)
50mm Kingspan Kooltherm K5 Wall Board (pack of 10)
50mm Kingspan Kooltherm K5 Wall Board (pack of 10)
  • Kingspan Kooltherm K5 Wall Board 50mm
  • Certified Thermal Conductivity of 0.021W/mK
  • Fire Rating Euroclass C-s2,d0 (Reaction to Fire)
  • Ideal for New Build and Refurbishment Projects
  • External Wall Insulation (EWI) systems, Thin Coat Rendering
Estimated delivery:
In Stock
£ 277.81
Ex VAT: £ 231.51
  • Brand: Kingspan®
  • Model: 50mm EWB EWI
  • Dimensions: 1,200mm x 600mm x 50mm
  • SKU: 50mm
  • Product code: P1-904
  • MPN: 50mm Kingspan Kooltherm K5

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50mm Kingspan K5 Kooltherm Phenolic Board is a high-performance external wall insulation board, with a fibre-free rigid thermoset phenolic core used for external wall insulation (EWI) systems, thin coat rendering and dry cladding systems.

Kooltherm K5 External Wall Board 50mm x 600mm x 1200mm is an insulating sheet faced on both sides with mineral glass coatings bonded to the insulation core during the manufacturing process and thermal conductivity of 0.021W/mK.

The core of Kingspan Kooltherm K5 Board is a highly efficient thermal phenolic insulation manufactured with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP).

The external wall insulation systems made using Kingspan K5 boards are durable and maintain its functional properties throughout the entire life of the building.

Kingspan Kooltherm K5 Board for external wall insulation is compliant with Building Regulations and comes in handy to reduce insulation thickness while delivering outstanding thermal performance.

Using Kooltherm Kingspan K5 a higher insulation value is achieved with a thinner board thickness than with other insulation materials (such as EPS, XPS and mineral wool).

Kingspan K5 external wall insulation board is an easy to handle and install 1200mm x 600mm panel.

K5 is not cheap, but it is worth using because better insulation material means lower heating bills.




Thickness: 50mm

Width: 600mm

Length: 1200mm

Pack Quantity: 10 boards

Pack Coverage: 7.20m2

Board Coverage: 0.72m2

Density: 35kg/m3

Weight: 12.6kg

Thermal Conductivity: 0.021W/mK

R-Value: 2.5m2K/W

Compressive Strength: 100kPa

Water vapour resistivity: 300MN.s/g.m

Fire Rating (Reaction to Fire): Euroclass C-s2,d0


Kingspan Kooltherm K5 Features:

 · Thermal conductivity (λ) of 0.021 W/mK.

 · Suitable for use behind polymer modified renders.

 · Unaffected by air infiltration.

 · Resistant to the passage of water vapour.

 · Easy to handle and install.

 · Suitable for new build and renovation.

 · Non-deleterious material.

 · Manufactured with a blowing agent that has zero ODP and low GWP.

 · High resistance to mold growth.



 · External wall insulation systems:

 · Solid brick and block walls.

 · Cavity block and brick walls.

 · Thin coat rendering.

 · Cavity brick walls.

 · Cavity dense block walls.

 · Insulated render systems.

 · Steel-framed walls

 · Timber-framed walls.


Gluing Kingspan Kooltherm K5:

We recommend Ceresit CT87 White Flexible Adhesive or Ceresit CT84 Express PU Foam Adhesive.

Experience shows that if we buy a really good insulation adhesive, it will work!

It is worth recalling that each panel should be glued with the circumferential-point method. 

After applying the glue, it should be on at least 40% of the board surface. 


Standards & Certification:

 · ISO 9001: 2015 (Quality management systems. Requirements).

 · ISO 14001 : 2015 (Environmental Management Systems. Requirements).

 · BS / I.S OHSAS 18001: 2007 (Occupational Health and Safety Management System Requirements) .

 · ISO 50001: 2011 (Energy Management Systems. Requirements with guidance for use).

 · Kingspan Kooltherm K5 is BBA / NSAI Agrément Certified rendered external wall insulation systems.

 · Kingspan Kooltherm K5 achieves European Classification (Euroclass) C-s2,d0 when classified to EN 13501-1: 2018.

 · Kingspan Kooltherm K5 when subjected to EN ISO 5659-2: 2012 (Plastics. Smoke generation. Part 2)


*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 7.20 m2
Colour Light shade of red
Compressive Strength 100kPa
Density 35kg/m3
Length 1200mm
Material Fibre-free phenolic insulant
Pack Coverage 7.20m2
Pack Quantity 10 boards
Profile Square edge
R-Value 2.5m2K/W
Thermal Conductivity 0.021W/mK
Thickness 50mm
Weight 12.6kg
Width 600mm
Fire Classification Euroclass C-s2,d0
Coverage 0.72m2
Finish Mineral glass coatings
Quantity 10 boards
Application Temperature from +5 °C to +25 °C
Shipping method Articulated Vehicle ǀ Courier
Applications External Wall Insulation Systems
BBA Certified Yes
ETA Notification Yes
Features Premium rigid thermal insulation board
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.
50mm Kingspan Kooltherm K5 Wall Board (pack of 10)
50mm Kingspan Kooltherm K5 Wall Board (pack of 10)
£ 277.81