FAQs (old)

  • What are the unit sizes?

    All units are 500mm long, 250mm high, with width dependant on unit chosen.

  • What is the width of each unit?

    Whatever the number is in the product name, is the width in millimetres.

  • Does the design need to be to Durisol unit sizes?

    No, we can accommodate any design out with modular size, the units just need cutting.

  • How many Durisol units are supplied in a pack?

    D365 units have 30 in a pack, D300 units have 40 in a pack, D250 have 50 in a pack and D170 have 60 in a pack.

  • Will I need to buy insulation for the walls or is it included in the blocks?

    Durisol D300 and D365 units will arrive on site with insulation pre-installed. D250 and D170 unit are non-insulated.

  • Can I buy just a few Durisol units?

    Generally standard, faces and corners can be sold individually.

  • How do I work out how many I need?

    Please send any drawings you have and we can work it out.

  • Do you have a price list?

    Please send an email to enquiries@www.durisol.uk and we can provide a price estimate based on your project requirements.

  • Do you offer training?

    Yes, please check on our training page for upcoming dates.

  • Can I arrange a visit to the manufacturing facility?

    Yes, please speak to a member of the Durisol team to arrange a visit.

  • Can I visit a site that is using the Durisol system?

    Yes, please speak to a member of the Durisol team to arrange a visit.

  • Do you deliver?

    Yes, various sizes of lorries can be specified. It is the customer’s responsibility to specify if there is access for an arctic and to arrange unloading.

  • Do you sell direct?

    Most of our product is sold direct, although it can be put through a merchant.

  • Is the product available immediately?

    There is a 4-6 week lead time dependant on stock levels.

  • What are the U-Values of the different Durisol units?

    D300 with PIR – 0.23
    D365 with PIR – 0.15

  • Do you have technical information?

    Yes, please refer to the technical section of the website.

  • Do you have CAD details?

    These are all downloadable from website.

  • Can you provide structural calculations and advice on reinforcements?

    We can advise on this, but will put you in touch with a qualified structural engineer as required.

  • Is Durisol mass poured concrete?

    No, Durisol is designed to structural masonry code, not mass poured concrete.

  • Can Durisol be used to build underground?

    Yes, it is approved for underground.

  • Can I build a basement with Durisol?

    Yes, but it would need to be waterproofed as with traditional construction.

  • Can I build a swimming pool with Durisol?

    Yes, swimming pools have been built with Durisol and it is ideal as swimming pools now come under building regulations and need to be insulated.

  • Does Durisol have certification?

    Yes, the product has a BBA certificate, an ETAG (European certification) and a GREEN GUIDE rating of A.

  • Is Durisol insurable?

    Yes, Durisol has several certifications and supports several insurance options.

  • Are there any issues in getting a mortgage on a Durisol house?

    Mortgage lenders will generally approve modern construction methods. Durisol has all the relevant certification which is available on request.

  • Will I be likely to encounter any problems with building control if I use Durisol?

    Durisol is LABC technically approved.

  • How easy is it to cut Durisol units?

    Anything that will cut wood will cut Durisol. For a lot of cuts a reciprocating saw is ideal.

  • What do I do at corners and around openings?

    There are three models of units - a corner unit is used on a corner, face units are used around openings, for lintels and as stop ends.

  • Is Durisol cheaper to build with than traditional build methods?

    For comparable U-values, yes it is and it can be built in a fraction of the time of traditional methods, saving up to 30%.

  • Can Durisol be built in all weathers?

    Yes, including rain, snow and low temperatures.

  • Do Durisol units form the lintels?

    Yes, in conjunction with rebar.

  • How much rebar do I put in?

    A structural engineer will specify.

  • Does the insulation sit on the inside or the outside of the wall?

    The units should be laid with the insulation at the outside of the wall, to allow the thermal mass benefits of the concrete.

  • What concrete do I use?

    The concrete specification is very important. It should be C30 strength, 10mm to dust aggregate, a slump between 180 and 220mm and a pumpable mix (See the Durisol Technical Building Guide).

  • Does the concrete have to be pumped?

    No, it can be put in by crane, loader bucket or with a bucket.

  • What type of pump do I use?

    It’s very dependent on site and access size of build. Please speak to a member of the Durisol team for further information.

  • How much concrete will I need?

    As a guide, for our D170, D300 and D365 units, you will require 1 cube of concrete per 10sqm of wall. For D250 units, you will need to allow approximately 1 cube per 7sqm of wall.

  • How do I fix to Durisol?

    You can use course threaded cutter screws.

  • How do I put floors into Durisol?

    Please refer to the Durisol Technical Building Guide.

  • How do I fix the wall plate?

    The wall plate is bolted into the concrete, as shown in the Durisol Technical Building Guide.

  • What type of finishes can I use?

    Durisol can support the majority of external and internal finishes including render, brick, timber cladding and stone cladding.