Self-building with Durisol ICF: Q&A

If you’re considering self-building with Durisol ICF, you will probably have many questions. In this blog, we share the answers to some of our most commonly asked questions.

To see some examples of our self-build projects, visit our featured projects page.

Is Durisol cost effective to build with?

The cost of Durisol materials is comparable with traditional cavity wall masonry. However, it is dry stacked with only eight blocks per square metre so it can be built incredibly quickly compared to traditional methods. A gang of four workers can build 100m2 of wall per day and build a house in a week, offering massive labour savings.

Are professional trade skills required to build Durisol?

Durisol can be built by developers and self-builders alike. It does not require professional qualifications, and we offer free training every month as well as site support.

Durisol is made from woodcrete which is mostly recycled timber so surely that rots and burns?

Before being formed into blocks, we mineralise the wood chip by treating it with non-harmful chemicals. Once this process is complete, the wood does not rot or burn. Durisol has been tested in Europe and North America and exposed to fire for up to six hours.

As a solid wall without a cavity, is Durisol well insulated?

Durisol blocks, when filled with concrete, can achieve U values as low as 0.15 before finishes are applied. So it is possible to build a super-efficient eco house from Durisol. The first commercial passive office building in the UK was constructed with Durisol, as well as numerous domestic dwellings.

Is Durisol fast to build with?

With no mortar in the joints (except the first bed) and only a single skin, Durisol goes up quickly! It can be used to build straight off the foundations, right up to roof level and as such it’s possible to construct the envelope of the structure phenomenally quickly.

What about moisture getting in?

Due to the open matrix of the block and the mineralised nature of the woodcrete, Durisol does not behave like a concrete block. There is no capillary action which means the block does not draw moisture inwards or upwards. The outer face will be rendered or covered in some way, but any moisture reaching the wall itself will simply drain vertically and not travel into the wall. Durisol buildings have been built in challenging environments around the world for 70 years and remain perfectly serviceable.

If you’d like to find out more about self-building with Durisol ICF why not come along to one of our free, no-obligation training days? You’ll have the opportunity to practice building with Durisol, and our team of experts will be on hand to answer all your queries. You can book your training here. For all other queries, please call us on 01495 249 400 or email us.