Your Cart

290mm Cellcore HX Plus EPS Insulation Under Concrete Floor Slabs ǀ 7/10

290mm Cellcore HX Plus EPS Insulation Under Concrete Floor Slabs ǀ Grade 7/10 max concrete depth 220mm
290mm Cellcore HX Plus EPS Insulation Under Concrete Floor Slabs ǀ 7/10
  • 290mm Cellcore HX Plus thermal resistance is 2.08m2c/w
  • Beneath reinforced concrete floor slab insulation
  • Cellcore HX Plus Insulated Heave Protection Board
  • HX Plus range is BBA certified (no.11/4862)
  • Under Concrete Floor Slab Insulation Board
Estimated delivery:
In Stock
£ 191.44
Ex VAT: £ 159.53
  • Brand: Cordek®
  • Model: 290mm Cellcore HX Plus ǀ 7/10
  • Dimensions: 2,400mm x 1,200mm x 290mm
  • SKU: 7/10 max concrete depth 220mm
  • Product code: P1-2297
  • MPN: 290mm Cellcore HX Plus - Grade 7/10

Options available

290mm Cellcore HX Plus EPS Grade 7/10 Insulated Heave Protection Board is a two in one product 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.

290mm HX Plus is a combination of 215mm Cellcore HX S Under Slab EPS bonded to 73mm 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.

Cordek Cellcore HX PLUS Grade 7/10 is calculated and calibrated for concrete thickness up to 220mm (has been tested to achieve the specified performance characteristics).

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.

Insulated Heave Protection Panels are available in a variety of depths and grades to suit most commonly encountered combinations of soil heave potential and concrete depth up to 900mm.

290mm Cellcore HX Plus thermal resistance is 2.08m2c/w based on the 73mm Filcor EPS100 insulation layer incorporated within the panel.

Cordek Cellcore HX PLUS is very simple to work with and doesn't have much dust off when cut on site.

Grade 7/10 means that the safe load of the panel is 7 kN/m2 and fail load is 10 kN/m2 (kilonewtons per m2).

Safe load is a maximum safe force that a HX S material incorporated within the HX Plus insulation panel offers without fear of breaking.

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

The shrinkage category of 290mm HX Plus is classified as high (National House Building Council).

290mm Cellcore HX Plus EPS Plasticity index (Soil Analysis) is 40-60.


Key points:

 · Beneath reinforced concrete floor slab insulation board.

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

 · Integrated Filcor EPS100 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 (National House Building Council) 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 290mm
Width 1200mm
Shipping method Rigid Vehicle ǀ Courier
Grade 7/10
Applications Reinforced concrete floor slabs
BBA Certified Yes (no.11/4862)
Maximum depth of concrete 220mm
Features Insulated Heave Protection Board
Safe load 7 kN/m2
Shrinkage Category High
Manufacturer Cordek Cellcore HX PLUS®
Plasticity Index 40-60
Fail load 10 kN/m2
Thermal Resistance 2.08 m2c/w

Write a review

Note: HTML is not translated!
Bad Good

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.
290mm Cellcore HX Plus EPS Insulation Under Concrete Floor Slabs ǀ Grade 7/10 max concrete depth 220mm
290mm Cellcore HX Plus EPS Insulation Under Concrete Floor Slabs ǀ 7/10
£ 191.44