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130mm Cellcore HX Plus Under Concrete Floor Slab Insulation ǀ 18/24

130mm Cellcore HX Plus Under Concrete Floor Slab Insulation ǀ Grade 18/24 max concrete depth 660mm
130mm Cellcore HX Plus Under Concrete Floor Slab Insulation ǀ 18/24
  • Under Concrete Floor Slab Insulation Board
  • HX Plus range is BBA certified (no.11/4862)
  • Cellcore HX Plus Insulated Heave Protection Board
  • Beneath reinforced concrete floor slab insulation
  • 130mm Cellcore HX Plus thermal resistance is 1.39m2c/w
Estimated delivery:
In Stock
£ 137.88
Ex VAT: £ 114.90
  • Brand: Cordek®
  • Model: 130mm Cellcore HX Plus ǀ 18/24
  • Dimensions: 2,400mm x 1,200mm x 130mm
  • SKU: 18/24 max concrete depth 660mm
  • Product code: P1-2244
  • MPN: 130mm Cellcore HX Plus - Grade 18/24

Options available

130mm Cellcore HX Plus Grade 18/24 (EPS) Insulated Heave Protection is a two in one solution designed for use beneath reinforced concrete floor slabs to protect against the potential effects of ground heave with the additional Filcor EPS100 insulation layer protected by a ultra thin polypropylene sheet on top.

Cordek Cellcore HX PLUS 18/24 is calculated and calibrated for concrete thickness up to 660mm (has been tested to achieve the specified performance characteristics).

130mm HX Plus is a combination of 80mm Cellcore HX S Under Slab bonded to 48mm Filcor EPS100 and protected by an ultra thin 2mm twin fluted polypropylene sheet on the top which is strong enough to actually walk on during installation.

HX Plus range is BBA certified (no.11/4862) and meets the NHBC’s Technical Standards by reducing the upward force transmitted to the structure from ground heave.

The standard range of products are available in a variety of depths and grades to suit most commonly encountered combinations of soil heave potential and concrete depth.

Variations of the product are also available for use under pile caps and ground beams or alternatively where integral insulation, permanent formwork or passive gas venting is required.

130mm Cellcore HX Plus thermal resistance is 1.39m2c/w based on the 48mm Filcor EPS insulation layer incorporated within the panel.

One of great things about HX PLUS is its very simple to work with and doesn't have much dust off when cut on site.

Grade 18/24 means that safe load is 18 kN/m2 and fail load is 24 kN/m2 (kilonewtons per m2).

Safe load is a maximum safe force that a HX S material offers without fear of breaking.

Fail load is not safe force and will cause permanent deformation of the product.

Shrinkage category of 130mm HX Plus is classified as low.

130mm HX Plus Plasticity index is 10-20.


Key points:

 · Beneath reinforced concrete floor slab insulation.

 · Reduces the upward force transmitted to the structure from ground heave.

 · Integrated Filcor insulation, based upon U-value requirements.

 · Wide range of profiles and grades to suit most applications.

 · BBA certified (no.11/4862).

 · Meets the NHBC’s Technical Standards.

 · Moulded production for enhanced and consistent performance.

 · Insulated heave protection board.



The procedure for installing Cellcore HX Plus panels is straightforward.

Please ensure that Cellcore panels are placed upon a suitable firm and level surface. 

Typically a layer of concrete blinding beneath the panels is recommended.

The lightweight but durable panels can be easily laid by one person. 

Where they are required to be cut this can be carried out using a fine tooth saw or hot wire cutter.


Storage and Handling:

All products are delivered in a polythene wrapping and are clearly labelled. 

Both packs of Cellcore and individual panels can be manually handled and offloaded upon delivery, taking in to account any site specific manual handling regulations.

No further storage requirements are needed as the product is unaffected by both UV light and water.


*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 2.88 m2
Length 2400mm
Material EPS ǀ Filcor ǀ Polypropylene
Thickness 130mm
Width 1200mm
Shipping method Rigid Vehicle ǀ Courier
Grade 18/24
Applications Reinforced concrete floor slabs
BBA Certified Yes (no.11/4862)
Maximum depth of concrete 660mm
Features Insulated Heave Protection Board
Safe load 18 kN/m2
Shrinkage Category Low
Manufacturer Cordek Cellcore HX PLUS®
Plasticity Index 10-20
Fail load 24 kN/m2
Thermal Resistance 1.39 m2c/w

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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.
130mm Cellcore HX Plus Under Concrete Floor Slab Insulation ǀ Grade 18/24 max concrete depth 660mm
130mm Cellcore HX Plus Under Concrete Floor Slab Insulation ǀ 18/24
£ 137.88