Housebuilder Hub
Information and resources to support Housebuilders
On our Housebuilder Hub you’ll find practical tools and information to guide you through the new updates to Approved Document L of the Building Regulations for England.
We’ve built lasting relationships with housebuilders across the UK, by consistently delivering product performance and a high-quality service. That experience means we understand the challenges that come with regulatory updates, and we’re here to help.
We also know that every development is different, so we’ve created these resources to help you find the best route to compliance for your business and your projects.
Use the library below to access our free insights and advice, and don’t forget to subscribe, so we can let you know when new materials are added.
Quick Links & Resources for Housebuilders
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Products designed to support compliance, meet regulations and raise the bar for performance in housebuilding.
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Our Technical Support team is here to answer your questions – big or small.
Frequently Asked Questions
You can find our installation guides, which provide step-by-step installation instructions, in our Download Centre. You may also find our video library helpful.
Our Solutions Guide provides information and advice on all our products, with advice on the best insulation for roofs, floors, walls, and other applications. The Product Finder Tool can also help you find the right product, based on your application. It’s easy to use and only takes a couple of minutes. Plus, our industry-first Condensation Risk Analysis and U-value Calculator can help you with all the details you need for planning your project.
Knauf products are rigorously tested and certified to meet regulations outlined by the Building Safety Act (2022), ensuring our products meet the required standards. We are transparent with our technical documentation and certification which include fire, acoustic, and structural performance data. This information is available via our Download Centre or on NBS Source. We also offer RIBA-accredited CPDs to help architects and specifiers stay updated on regulatory changes.
We offer expert advice on all our insulation products and solutions through our in-house Technical Services Team (TST). With over 20 years’ insulation experience, our TST provide free, expert advice to construction professionals. Get in touch here.
The help desk is operated from 8.00am to 5.00pm Monday to Thursday and 8.00am - 4.00pm Friday, by experienced insulation experts, ready to provide advice on regulations, products, and energy performance.
A fully filled cavity with DriTherm® Cavity Slabs will meet the requirements of the Building Regulations 2010 Approved Document B (Part 6), so cavity barriers won't be required. DriTherm® Cavity Slabs have the highest Euroclass A1 reaction to fire classification, in accordance with BS EN 13501-1: 2007. As the insulation fully fills the cavity, no cavity barriers are required. For more details, see BBA Certificate 95/3212.
If mineral wool becomes saturated it may lose some of its thermal performance but the extent of the reduction very much depends on the degree of saturation and whether the insulation has been mechanically abused whist wet. If there is no mechanical abuse whilst wet, the product will dry out in time and its thermal conductivity will remain as it was when manufactured but there may be a slight reduction in thickness.
However, if the mineral wool has been subject to mechanical abuse, compression, or loading whilst wet there could be a considerable reduction in thickness which would reflect on the thermal performance once the product has been allowed to dry out.
Insulation products alone do not give a sound reduction value, only systems or construction elements give this value. Therefore, any sound reduction numbers quoted will be in reference to a built system e.g. a partition wall or separating floor; not a slab or roll of insulation.
Volatile Organic Compounds (VOCs) are potentially harmful emissions linked to allergies, asthma and even cancer. These pollutants can enter a building from the outside, indoor substances, such as paint or perfumes, and even electronic devices, affecting the air quality. We spend 90% of our lives inside buildings, so ensuring that we have good, clean indoor air quality is vital to designing a safe building.