ISOTEX was formed in 1985 in Poviglio (RE), Italy following woodcrete being used extensively in Germany since 1946.

The factory produces woodcrete blocks that are used as a dry-stack walling system for use in the construction industry. The units are then in-filled with concrete to form a monolithic structural walling system.

This method of building is known in the industry as Insulated Concrete Formwork (or ICF for short) and joins a range of other competitor products in the industry which differ to traditional methods but have some unique features.


Benefits at a Glance:

  • Construction time is reduced
  • Simple, complete and compliant with applicable building regulations
  • Reduced construction times and costs
  • Over 400,000 builds worldwide
  • Italian heritage – ISOTEX: building the future since 1985
  • Extensive testing regimen ensures quality
  • Comprehensive certifications, including ISO 90001:2008 / ETA 08/0023 and CE marked.
  • ISOTEX has lessened thermal bridging
  • ISOTEX eliminates temperature fluctuations – thermal mass gives a stable living environment for you to enjoy
  • ISOTEX achieves energy-saving in your build
  • ISOTEX does not burn – after 180 mins fire exposure at 1000 degrees centigrade.
  • Product requires basic skills to lay
  • ISOTEX blocks have high levels of thermal efficiency (wood fibre has inherent thermal properties).
  • Product is produced from recycled-timber.
  • Raw finish makes it ideal as a key for internal and external finishes
  • Pricing is competitive compared to Timber Frame / Traditional construction methods
  • Confidence in supply - ISOTEX Stock held at rail ports accross the UK

What makes ISOTEX different?

ISOTEX Wood-cement blocks since 1985.

ISOTEX has been around for a good while, first manufactured in 1946 in Germany, it has featured extensively in 400,000 builds across Europe. Over here in the UK, it has equally as strong portfolio and has been used in some high profile builds to date.

When we talk about ISOTEX as the premium ICF, we mean it!

Product Range

There are many different block sizes in the range, which cater for all manner of build types and designs. ISOTEX ICF blocks share the same basic dimensions of 500mm length by 250mm height.

Frequently Asked Questions

ISOTEX is made from recycled wood fibre and Portland cement. We then add a natural mineral oil and this ‘mineralises’ the wood. The result is that it doesn’t rot or burn and we then cast this into a block to be used for construction purposes. As ISOTEX is a treated product, this makes it suitable to be used in construction.

ISOTEX has been used in 400,000 builds to date since 1985 and is very common throughout mainland Europe. In the UK we currently have a number of builds that feature ISOTEX and will be displaying these to the buying public in the future.

This is specified by your Structural Engineer who will design your build and provide a construction-issue drawing which will provide inclusions for concrete volumesand also any steel requirements, if necessary.

As a general rule, ISOTEX external blocks require just over 1m3 of concrete per 10m2 of wall.

We’re confident in our product range and would say ISOTEX ICF offers tangible build savings as a modern construction product, requiring less-skilled labour to install and build time can be reduced significantly. Contact us with your plans and we’ll be glad to get you a quote.

The insulation for ISOTEX is a BASF product, called Neopor. This graphite insulation is a premium-offering from a well-known insulation manufacturer. The thermal properties from Neopor give ISOTEX it’s high thermal efficiency and performance. It’s worth noting that the performance is enhanced by the ‘continuous’ insulation that forms the insert.

Insul Hub Ltd are committed to providing FREE hands-on Training which allows you to gain an insight into ISOTEX ICF and how to build with it. Bring your builder and we’re happy to discuss best practice and maximising your build using the system. (Please note that our training courses are currently on hold)

Post-purchase we also provide one 3hr support slot where you can book us to attend your site and give practical trouble-shooting advice. Generally our most popular request is to attend before / during the concrete pour. Get in touch to arrange this with us.

How does it work?

Application process for ISOTEX ICF:

  • Use ISOTEX ICF blocks to complete the structure of your build. You do this by dry-stacking the blocks, working in masonry stretcher bond.
  • Prepare for the first course of ISOTEX. We recommend using a mortar bed (dual strips towards the front and rear of the block). Now begin to lay the first course of ISOTEX blocks to the foundation.
  • Following on from the first course of ISOTEX, there is no need to continue using mortar as the blocks feature a void in the centre of the blocks which is where the concrete is poured later in the process.
  • Stack the blocks using those appropriate to the build situation. You’ll need a range of blocks for different scenarios, such as standard ‘HB’ (uninsulated) and ‘HD’ (featuring insulation) for example. Our build guide also gives best practice for any build situation you may encounter and features guidance on using our block range such as Half Blocks, Pass Blocks, Lintel Blocks and Shoulder / Universal blocks. All of these blocks make building a piece of cake but it’s essential you understand the basics first.
  • At the height of the first lift (we advise 2.25 metres) for first pour of concrete.
  • Only half-fill the blocks when pouring as you’ll need the remaining half to fill with concrete when you commence the second-lift (if appropriate to your build). This creates the structural tie-into the build so is mandatory for the system to remain compliant to UK Building Regulations.
  • You’ve now completed your build using ISOTEX. We’re confident you’ll see (and feel) the difference and are here to help should you need us. Get in touch to find out more.

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