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50mm K-Roc Kingspan Rainscreen Insulation Slab (7.2m²/pack)

50mm K-Roc Kingspan Rainscreen Insulation Slab (7.2m²/pack)
50mm K-Roc Kingspan Rainscreen Insulation Slab (7.2m²/pack)
50mm K-Roc Kingspan Rainscreen Insulation Slab (7.2m²/pack)
50mm K-Roc Kingspan Rainscreen Insulation Slab (7.2m²/pack)
50mm K-Roc Kingspan Rainscreen Insulation Slab (7.2m²/pack)
  • 50mm Kingspan K-Roc® Rainscreen Façade Insulation Slab A1
  • Designed for use behind rainscreen façades in all buildings
  • Certified thermal conductivity (lambda value) of 0.034 W/mK
  • Density of 45 kg/m3 and comes in a standard size 600x1200mm
  • K-Roc® Rainscreen Façade Insulation Slab is BBA Certified 20/5845
Estimated delivery:
In Stock
£ 143.88
Ex VAT: £ 119.90
  • Brand: Kingspan®
  • Model: 50mm K-Roc® Rainscreen Slab
  • Weight: 16.21kg
  • Dimensions: 1,200mm x 600mm x 50mm
  • SKU: 50mm K-Roc
  • Product code: P1-2528
  • MPN: 50mm K-Roc® Rainscreen Slab

Options available

50mm Kingspan K-Roc Rainscreen Façade Slab (pack of 10) is an euroclass A1, rock mineral fibre insulation slab designed for use behind rainscreen façades in all buildings regardless of building type, height, construction and location.

Rainscreen Façade Insulation Slab Kingspan K-Roc 50mm is a great heat conductor with a certified thermal conductivity (lambda value) of 0.034 W/mK (the lower the thermal conductivity, the better the insulation product).

K-Roc Rock Mineral Fibre Rainscreen Slab has a density of 45 kg/m3 and comes in a standard insulation slab size 600mm wide by 1200mm long (4' by 2').

Kingspan Rainscreen Slab K-Roc is manufactured to the highest standards under a management system certified to ISO 9001 and ISO 14001.

The use of K-Roc® Rainscreen Façade Insulation Slab is covered by BBA Certificate 20/5845.

Kingspan K-Roc in a specific construction has been successfully tested to BS 8414-2: 2015 + A1: 2017 (Fire performance of external cladding systems.

K-Roc® Rainscreen Slab is also certified to BES 6001 (Framework Standard for the Responsible Sourcing of Construction Products).




Thickness: 50mm

Width: 600mm

Length: 1200mm

Pack Quantity: 10

Slab Coverage: 0.72m²

Pack Coverage: 7.20m²

Profile: Square Edge

R-Value: 1.50m2K/W

Thermal Conductivity: 0.034W/mK

Density: 45kg/m3

Material: rock mineral fibre insulation slab

Facings: unfaced

Fire Classification: Euroclass A1


Kingspan K-Roc® Rainscreen Façade Insulation Slab Installation:

 · The installation guidance for K-Roc® Rainscreen Slab outlined in this section must only be followed after considering the below.

 · To ensure compliance with the latest Building Regulations and Standards please consult your system to Local Building Control for more information.

 · In England and Wales, for ‘relevant’ buildings over 18m in height, membranes used as part of the external wall construction above ground level should achieve a minimum of Euroclass B-s3,d0.

 · Since rainscreen façade systems are proprietary and use differing mechanisms to fix and support the external cladding to the wall structure, installation guidance should be sought from the system manufacturer.

 · Nevertheless, in the absence of any other guidance the instructions set out below may be followed.

 · Insulation slabs should be installed break-bonded with slab edges lightly butted and in such a manner to achieve a close fit between the slab and substrate interface so as to avoid gaps behind or between the slabs.

 · Slabs should be cut neatly around fixings and brackets, so as to avoid gaps.

 · Fixings required to fix slab will vary with the geographical location of the building, the local topography, the height and width of the wall, the wall structure, and the type of mechanism being used to attach the cladding system.

 · A minimum of 3 fixings per m2 are required to secure the insulation slab to the wall structure.

 · The requirement for additional fixings should be assessed in accordance with BS / I.S. EN 1991-1-4: 2005 + A1: 2010 (Eurocode 1. Actions on structures. General Actions. Wind Actions).

 · The fixings should be evenly distributed over the whole area of the slab.


*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
Density 45kg/m3
Length 1200mm
Material Rock mineral fibre insulation slab
Pack Coverage 7.20m2
Pack Quantity 10 slabs
Profile Square Edge
R-Value 1.50m2K/W
Size 50mm x 600mm x 1200mm
Thermal Conductivity 0.034W/mK
Thickness 50mm
Weight/m2 2.25kg
Width 600mm
Fire Classification Euroclass A1
Coverage 0.72m² / board
Finish Unfaced
Quantity 10 slabs per pack
Application Temperature from +5 °C to +25 °C
Shipping method Articulated Vehicle ǀ Courier
Applications Insulation for use behind rainscreen façades
BBA Certified Yes, no. 20/5845
ETA Notification Yes
Features Class A1 Rainscreen Façade Insulation Slab
Manufacturer Kingspan K-Roc®

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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 K-Roc Kingspan Rainscreen Insulation Slab (7.2m²/pack)
50mm K-Roc Kingspan Rainscreen Insulation Slab (7.2m²/pack)
£ 143.88