What Does Klasse Need to Complete Your U-Value Calculation? A U-value calculation ends with one number. Getting to a number that properly represents the proposed wall is the harder part. The insulation thickness matters, but it is only one... Read more
How Do You Prevent Moisture Problems Behind Rainscreen Cladding? Moisture management is the primary purpose of a rainscreen facade. That is the whole point of the design: an outer cladding layer, a ventilated cavity open at top and bottom,... Read more
Are Party-Wall / SFS Junctions Fire Tested? What 90-Minute Results Mean for Fire Safety Representative party-wall / SFS junctions have now been tested at full scale. In a recent programme led by voestalpine Metsec at BRE, two junction configurations achieved 90 minutes’ fire resistance,... Read more
Klasse Team Swings, Serves and Scores for Right To Play Colleagues from Klasse swapped their usual working day for an afternoon of friendly competition at our 2026 Sports Tournament, held at the Hereford HQ in support of Right To Play.... Read more
Why Strength Matters When Choosing Rainscreen Insulation Not All Rainscreen Insulation Is Created Equal. When selecting insulation for a ventilated façade system, fire performance and thermal efficiency often receive the most attention. However, one critical property is... Read more
Learn What HSE’s 2026 Silica Dust Inspection Means For Construction Businesses Construction dust is not simply an inconvenience or a housekeeping issue. It is a serious occupational health hazard that can cause permanent, life-changing and potentially fatal lung disease. In May 2026,... Read more
G-board® vs Traditional Sheathing Systems: Cut Installation Time in Half The external wall build-up plays a critical role in protecting a building from the elements while supporting the overall performance of the facade. However, achieving a weather-resistant envelope with traditional... Read more
Klasse Team Popping Balloons And Raising Money for Mind At Klasse Group, we believe that creating a positive workplace goes beyond the work we do every day. It's about supporting one another, giving back to our communities, and making... Read more
Klasse at Zak World of Facades 2026 in Manchester Klasse was proud to exhibit at the 2026 edition of Zak World of Facades in Manchester, joining architects, facade consultants, contractors and industry leaders for another insightful day dedicated to... Read more
Why Testing with Leading SFS Manufacturers Matters When specifying external sheathing boards, product performance cannot be considered in isolation. Every building system is made up of multiple components working together, which is why compatibility testing is such an... Read more
G-board: A1 & W1 Tested Glass Fibre Faced Sheathing Board Klasse Group is proud to introduce its latest innovation in facade performance and compliance - The W1 and A1 tested glass fibre faced gypsum sheathing board system. Designed to meet the... Read more
Why Breathability Matters More Than You Think in Building Materials When it comes to modern construction, performance is often measured in terms of strength, durability, and cost. But there’s one critical factor that’s frequently overlooked, breathability. Many commonly used materials... Read more
Annual Klasse Strategy Meeting | January 2026 The Klasse team all got together once again for our 2026 annual strategy meeting, with a focus of celebrating achievements and looking at the year ahead at Klasse. This year,... Read more
Klasse Participates in Snowball Race for Action for Children At Klasse, we are all about teamwork, a bit of friendly competition and supporting great causes. Our latest fundraising challenge brought all of that together for an afternoon of laughter,... Read more
Klasse at Zak World of Façades 2025 in London Zak World of Facades recently reached an impressive milestone – reaching the 200th edition of their globally renowned event. This historic event, hosted in London, brought together the architects, engineers... Read more
Coffee Morning for Macmillan Cancer Support Recently, the Klasse team took part in Macmillan’s annual Coffee Morning to raise money for a cause that touches so many lives. It was the perfect excuse to enjoy coffee,... Read more
The Role of Sheathing Boards in Timber Frames Timber frame construction is becoming an increasingly popular choice in the UK, especially for modular buildings and low-rise projects. The speed of build, sustainability benefits, and cost efficiencies make timber... Read more
Best Practices for Off-Site and Modular Construction with Sheathing Boards Off-site and modular construction are no longer niche approaches in the UK. From housing developments to education buildings, more projects are shifting towards factory-based assembly to deliver faster build times,... Read more
Understanding Modern Construction Methods: A Layer-by-Layer Guide From fire protection to airtightness, thermal performance to structural integrity – every component in a through-wall build-up plays a vital role. Yet, with such a wide range of materials and... Read more
Edge Sealing: Joints, Gaps, and Fixing Techniques In facade construction, performance is only as strong as the details. While much attention is rightly given to insulation and cladding systems, it’s the way external sheathing boards are joined,... Read more
Klasse at the Tall Buildings Conference & Awards 2025 Following the success of our showcase last year, Klasse once again had the privilege of exhibiting at the Tall Buildings Conference & Awards 2025 - a flagship event bringing together... Read more
Klasse Charity Bowling Competition for War Child At Klasse, we believe that coming together as a team can make a real difference - and our latest charity event was the perfect example of that. In an afternoon... Read more
Through-Wall Solutions: How Klasse Partners with SFS Manufacturers At Klasse, we understand that precision, performance, and compliance are essential in light steel frame construction. That’s why we’ve built strong partnerships with leading SFS (Steel Framing System) providers and... Read more
Klasse at Zak World of Façades 2025 in Birmingham Zak World of Façades is the leading global event for all things building facades and construction. The 181st event, held in Birmingham brought together hundreds of carefully selected industry leaders... Read more
Klasse’s Commitment to Quality and Certification At Klasse, we understand that in the built environment, quality isn’t optional - it’s critical. Whether it’s a rainscreen system on a high-rise building or sheathing boards on a new-build... Read more
Specifying Klasse Products: A Simple Guide for Architects and Specifiers Choosing the right materials is essential for architects and specifiers aiming to deliver high-performance, compliant, and sustainable building solutions. Klasse understands the complexities involved in product specification... Read more
How the Building Safety Act and Gateway 2 Impact Through-Wall Construction The introduction of the Building Safety Act 2022 represents a fundamental shift in how high-risk buildings are designed, constructed, and managed in the UK. With the rollout of Gateway 2,... Read more
How Klasse Products Contribute to Sustainable Construction Sustainability is no longer a trend - it's a necessity. With increasing emphasis on reducing carbon emissions, improving energy efficiency, and promoting long-term environmental stewardship, the construction industry is under... Read more
Pancake Day Celebration Raises £300 for Save the Children At Klasse, we love to bring our team together for a good cause, and Pancake Day gave us the perfect opportunity! This year, we combined tasty treats with team-building games,... Read more
Why You Don’t Need a Breather Membrane with Klasse G-board Traditionally, breather membranes have been considered indispensable components of external wall systems, providing essential protection against water ingress while allowing vapour to escape. Read more
Why Klasse G-board is the easier choice for sheathing board projects When it comes to building construction, simplicity and efficiency are key. Klasse G-board, a gypsum-based external sheathing board, is designed to make construction projects easier and more cost-effective. This lightweight... Read more
Annual Klasse Strategy Meeting | January 2025 The Klasse team recently came together for our annual strategy meeting, a day dedicated to reflecting on the past year and setting our sights on the future. We celebrated achievements,... Read more
Pin the Nose on Rudolph for Trussell Trust & Tafel The Klasse team recently rounded off their 2024 charity events with one last fundraiser. The whole team got together for a fun game of 'Pin the nose on Rudolph'. All... Read more
Klasse at Zak World of Façades 2024 in London The 164th edition of Zak World of Façades was held in London, where Klasse was proud to participate as an exhibitor. As one of the industry’s most respected events, Zak... Read more
How Rainscreen Insulation Slabs Enhance Building Performance As buildings face increasingly stringent energy efficiency and environmental standards, rainscreen insulation slabs have become essential for achieving optimal thermal performance. Read more
What is stone mineral wool? - An insight into this insulation material Stone mineral wool is a high-performance insulation material that has gained popularity for its remarkable thermal, acoustic, and fire resisting capabilities. Manufactured from natural volcanic rock, such as basalt or... Read more
Behind the Scenes: Klasse at Offsite Expo 2024 Offsite Expo is widely acknowledged for connecting offsite supply-chain service and product providers with architects, engineers, consultants, contractors and clients who want to be future-ready. With a focus on the technologies... Read more
What are Euroclass Fire Ratings and Why Are They Important in Construction Materials? When it comes to building safety, one critical factor is fire resistance. Construction materials must meet specific standards to ensure they help protect a building in case of a fire.... Read more
KlasseROCK® is British Board of Agrement (BBA) certified Klasse are proud to announce that our rainscreen insulation, KlasseROCK®, is now BBA approved. With this certification, users can be absolutely sure that KlasseROCK® has passed the vigorous testing that... Read more
Sports Day 2024 for Laureus Sport for Good Foundation Klasse recently hosted its own 2024 Sports Day at our Hereford site, raising funds for Laureus. The Klasse team took part in four fun events: a three-legged race, bean bag... Read more
Understanding the differences between cement boards and calcium silicate boards To understand the differences between cement and calcium silicate boards, it is important to look at their compositions. Calcium silicate boards are typically made of calcium silicate, a compound composed... Read more
Discover KlasseROCK®: Our new Rainscreen Insulation In construction, selecting the right materials for your project is crucial to ensuring safety, efficiency, and durability. KlasseROCK® Rainscreen Insulation is a new product from Klasse that stands out for its exceptional... Read more
Klasse at the Tall Buildings Conference & Awards 2024 Klasse attended the 2024 edition of the Tall Buildings Conference in London. The prestigious event featured only a select few construction partners to exhibit and we were honoured to be... Read more
A new CPD from Klasse is now available to book We can now offer our new CPD seminar, it's available to book today. We launched this new CPD at the RIBA CPD Expo in London, and we're delighted to have... Read more
Paper Plane Competition for European Food Banks Federation Team Klasse hosted their second charity event of the year, with everyone getting involved in the fun! We had a paper plane competition, raising money for the European Food Banks... Read more
What is Gypsum and Why is it Used in External Sheathing Boards? Gypsum, a naturally occurring mineral composed of calcium sulfate dihydrate (CaSO₄·2H₂O), has been utilised for thousands of years in construction and decoration. Its use ranges from ancient Egyptian monuments to... Read more
Klasse at Zak World of Facades in Manchester Klasse attended the latest edition of the prestigious Zak World of Facades event in Manchester, being one of only a select few businesses to have a presence on the show... Read more
Environmental Product Declarations (EPDs) for G-board and C-board Klasse Group is fully committed to transparency with our products. That's why we're proud to have EPDs for both G-board and C-board external sheathing boards. We firmly advocate for the availability... Read more