"external insulation of external walls"

Urban development within St. Helier, the capital of Jersey is gathering momentum with URSA seeing its specialist insulation products specified at one of the capital’s newest and most ambitious developments. The largest of the Channel Islands, St. Helier is a lively harbour town and has become one of the UK's most popular tourist attractions, creating a high demand for ongoing residential and commercial development. Both its commercial port and marina, as well as the centre and the main neighborhoods, are undergoing an in-depth study for the renovation of its building stock and the transformation of the urban landscape it offers. The ultimate objective is a profound urban regeneration carried out through the creation of a commercial heart open to the sea, in the city centre, and modern, sustainable and healthy residential developments on the outskirts to ensure the demands of future growth. It also aims to reduce traffic and create a walkable city for pedestrians and cyclists with green spaces and open spaces. In the north of the city is Ann Court, a large development located next to a large municipal park built on the site of a former car park that has been demolished. Being developed by Andium Homes, construction is nearing completion on the development of 165 new homes of different sizes and orientations (with internal and external courtyards), but with a common standard: the energy efficiency and sustainability of the whole complex. To support the sustainable objectives, architects have specified a ventilated façade that guarantees thermal and acoustic comfort, whilst preventing moisture penetration and condensation. A correctly designed ventilated façade system also guarantees a fire safe structure, prolongs the life of the building and enhances its energy efficiency. As part of the specification, 2,400 square meters of 220mm URSA Walltec Black 32 were specified. The choice of material was the direct decision of the architect Stephen Marshall of Axis Mason Architects, who decided on the glass wool slabs after learning about their performance and the knowledge provided by URSA's technical office. URSA Walltec Black 32 is a semi-rigid glass wool slab treated with a water repellent additive. The slabs have a black glass fibre tissue to one side only that helps to hide the insulation in ventilated façades with open joints. It is a non-combustible product that does not contribute to the spread of fire, is water repellent and has high performance to ensure the thermal and acoustic comfort of the entire residential complex. Once the insulating material has been fixed, the façade is completed with the installation of the cladding to create cavity that ensures the properties of the system. This imposing façade enveloping the courtyards of Ann Court facilitates a new building in the north of St. Helier where social interaction, tranquility, quality, comfort and healthiness are guaranteed.  Ian Claydon, URSA UK Technical Manager, said: “We first became involved in this scheme in June 2020. We were approached by the architect for recommendations on correct choice of product and the thermal assessment for the external walls.  “During the early stages of the project, we were in regular contact providing advice on the target U-value in the wall(a commendably low 0.18 W/m2K), as well as the impact on Jersey SAP energy assessment and the technicalities of rainscreen cladding. The team were particularly impressed with the speed of response and our wider technical knowledge, helping to support the perfect specification.” 

Often a challenge during the course of a busy school day, many schools experience pressure on facilities such as dining room areas.

CHALLENGEAn ambitious project, and one of the first certified PassivHaus homes in the UK - the Denby Dale PassivHaus in West Yorkshire, had to to use 90% less energy for space heating than the average UK dwelling – with a space heating need of only 15 kWh/m2/ year. The three-bedroom property is the first UK Passivhaus to be built in a traditional style using cavity wall construction and had to be built to a tight budget of £141,000.SOLUTION“We decided to go down the cavity wall path and arrived at the design for several reasons including: planning restrictions, thermal store, cost, and maybe most important of all, buildability,” explains Bill Butcher, Project Leader.Excellent performing insulation is obviously fundamental to Passivhaus construction and the Denby Dale house has 300mm Knauf Insulation DriTherm® Cavity Slab 32 in the walls, 500mm Knauf Insulation Loft Roll 44 in the roof void (both of which incorporate ECOSE® Technology) along with 225mm of high-performing Polyfoam® Floorboard Standard* insulation in the floor.“We’re fully filling the cavity with glass mineral wool insulation for the walls above ground, because it helps minimise air movement in the cavity and offers greater flexibility, fitting snugly around the ties, openings and imperfections of the masonry surface.” comments Bill Butcher.Economics, performance, availability, ease of fitting and reducing thermal bypass were all among the benefits of the Knauf Insulation products chosen.*No longer sold through Knauf Insulation.BENEFITSGlass Mineral Wool was specified over rigid insulation to ensure a tight thermal fit. Knauf Insulation DriTherm® Cavity Slabs are flexible enough to eliminate air gaps and prevent heat loss due to their inherent ability to knit together at joints between the slabs. If rigid insulation is used and fitted badly with too many gaps, air movement around and between the insulation boards is increased, which can drastically reduce its insulation value.Knauf Insulation DriTherm® Cavity Slabs are BBA Certified for all exposure zones and formally guaranteed for 50 years to prevent the transmission of liquid water from the outer masonry leaf to the inner masonry leaf.In addition to its thermal performance glass mineral wool also has other sustainable features. In manufacture it uses a high content of recycled glass bottles and requires less overall energy consumption than some alternative products, resulting in less carbon emissions. In addition, it can be recycled at the end of a building’s life and has zero GWP and zero ODP. ECOSE® Technology further extends these established green credentials as it is manufactured with 70% less energy than traditional binders and the products contain no dyes or added formaldehyde – providing the ideal solution to the eco-friendly house.

THE PROJECT: Recticel supplied the high-performance thermal solution to transform a 100-year-old property in Moseley, Birmingham. Divided into nine apartments, in which two were refurbished to create one, two-storey home, the project caught the attention of the producers of Channel Four's Old House to New Home. Connecting a ground floor property to a flat above led to the creation of a modern and stylish home trimmed with decorative reminders of its structural origins.THE SOLUTION: Eurothane® GP, a high-performance rigid PIR foam board, was selected for the new home's pitched roof, framed wall and floor. Eurothane PL, Recticel's insulation and plasterboard solution was fitted to the property's existing, cavity-less, nine-inch exterior brick walls. The well-sized board ensures minimal thermal bridging during construction.Coupled with Eurothane® GP's 0.022W/mK low thermal conductivity, these products were crucial to attaining a good U-value rating. In total, 130m2 of Eurothane® GP and Eurothane® PL panels were installed.The homeowner, Paul explained:"As we were carrying-out most of the building work ourselves we wanted the best possible insulation for the project. Research revealed Recticel's solutions fitted the bill. Excellent thermal performance and simple to-fit, they were a far superior alternative to other insulants we considered. The panels have done so much to create a welcoming and comfortable interior environment."Used products:Eurothane® GP:Eurothane® GP is a high performance PIR insulation board that is light weight, easy to cut, handle and install. Whether it’s a pitched roof, framed wall or floor, Eurothane® GP is the ideal solution amongst contractors and installers.Eurothane® PL:Suitable for mechanical fixing or dot and dab fixing, this insulated board is consistently sized with extremely tight tolerances, ensuring thermal bridging is minimised. Factory bonded, the plasterboard provides optimum board dimensions and optimum adhesion between layers.

CHALLENGEAs part of a full exterior refurbishment, building envelope contractor, Alumet, required a new façade system that would transform and modernise the exterior of the Jubilee House building, which was originally installed in the early 1970s. Coupled with this was the requirement to improve thermal and energy efficiencies.SOLUTIONKnauf Insulation supplied its Rocksilk® RainScreen Slab to ensure optimal fire, thermal and acoustic performance. The key to Knauf Insulation securing the project was the ability to provide in depth technical support, including complex 3D heat flow modelling calculations which took into account the specific system brackets, which act as a significant cold bridge within rainscreen cladding systems.Knauf Insulation’s Rocksilk® RainScreen Slab was installed on the brick facade of the existing building, which once complete, significantly improved the U-value thus reducing the heat loss through the wall.The insulation layer is a fundamental component of any successful rainscreen cladding system and mineral wool insulation delivers a number of advantages for this type of application. Rocksilk® RainScreen Slab is a Rock Mineral Wool slab containing a water repellent additive, designed for use on masonry wall constructions and as the outer insulation layer in steel frame projects.Quick and easy to install, the product is simple to cut and the slabs knit together to create a snug fit, with no need to tape the joints as may be required with rigid foam boards – ensuring maximum acoustic and thermal performance."We wanted to turn our headquarters into a thermally efficient building and to really project a modern ‘green’ image. The Schueco Façade system, along with Knauf Insulation’s products, helped us to achieve this as well as dramatically reducing our carbon output.We have received some fantastic feedback from local residents saying how good the new façade looks and coupled with the improved thermal efficiencies, we are very pleased."- Alumet Director, Dean Walton

THE PROJECT: Recticel Insulation supplied the high quality insulation solution for an old school in Oxford. The main aim of this project, carried out by Touchstone Lofts, was to convert an uninsulated historic school building originally constructed in 1860 into a modern, energy efficient four-bedroom residential unit. The contractor endeavored to create a two storey dwelling and hoped to minimise headroom loss with insulation in both the floor and pitched roof, therefore selecting the right product was paramount.THE SOLUTION: Eurothane® GP, a low-thermal conductivity PIR insulation panel for use in multiple building envelope applications, was the obvious choice for The Institute’s ground floor and loft insulation. The product's thermal performance of λ = 0.022 W/mK enabled an appropriate thickness selection, so the desired minimum headroom loss was achieved giving the completed build an energy efficiency rating of B. The contractor was thrilled with this given the constraints associated with retrofitting insulation into a period building.Paul Johal, Owner of Touchstone Lofts explained:"Recticel’s insulation provided us with a thermal solution that achieved the required U-value targets whilst keeping the overall thickness to a minimum. The quality of the product is excellent and at a competitive price. The extremely proficient technical team of Recticel Insulation were very responsive with U-value calculations, meaning we could move forward with the project more efficiently. Having the right advice and products from Recticel certainly played a crucial role in achieving our aims. We are delighted with the final outcome."About Eurothane® GP:Eurothane® GP is a high performance PIR insulation board that is light weight, easy to cut, handle and install. Whether it’s a pitched roof, framed wall or floor, Eurothane® GP is the ideal solution amongst contractors and installers

With the business growing at a rapid rate, the firm has expanded its head office to a purpose-built facility which also incorporates a store, café, and an external garden centre.To make the most of its prominent location at the entrance to the new Seaton Hill development, the building was designed to showcase the brand’s iconic identity. The facade of the offices and warehouse are clad primarily in a palette of blacks and greys using Kingspan Dri-Design Flat Cassettes for the office element and QuadCore AWP Wall Panels for the large retail section. This neutral palette provides the perfect backdrop for more colourful facade elements of royal blue and bright orange which ‘pop out’ from the envelope, both literally and visually. These elements include a ribbon style wrapping which recreates a heart-beat reading and symbolises the HQ’s position as the “heartbeat of Derriford”. This dramatic treatment also helps to break-up the massing of the site.  Selecting all these materials from a single supplier also help to simply logistics, minimise onsite waste and ensure complete compatibility between the elevations.

When MCR Property Group purchased Unity Square in Liverpool, a £17m partially built student living scheme, it wanted to complete the project as quickly as possible.The specification required a non-combustible insulation solution that complied with building regulations for the acoustic insulation of internal walls and separating floors. The company needed a large quantity of insulation delivered within a very short lead time to coincide with the period when hired vehicles would be on site. With this in mind, Knauf Insulation suggested Rocksilk® Flexible Slab, its multi-purpose Rock Mineral Wool insulation.Designed for use in a wide variety of applications including internal walls, floors and partitions, and separating floors, and with excellent thermal performance, Rocksilk® Flexible Slab exceeded the specification requirements. Furthermore, Rocksilk® Flexible Slab has a non-combustible Euroclass A1 reaction to fire classification, making it suitable for internal use on residential dwelling buildings over 18m tall as outlined in the recent changes to Approved Document B.As well as thermal and fire performance, Rocksilk® Flexible Slab has excellent sound absorption properties, providing high levels of sound insulation. As a result, the installation of the product in the 204 bedrooms and 36 studio flats will make life much more comfortable for the students living on the campus.Rocksilk® Flexible Slab is manufactured with ECOSE® Technology, Knauf Insulation’s unique bio-based binder that contains no added formaldehyde or phenol. Products made with ECOSE® Technology generate low levels of dust and VOCs (volatile organic compounds) and have been awarded Eurofins Indoor Air Comfort (Gold) certification.Builders’ merchant, Selco Ardwick in Manchester, supplied Rocksilk® Flexible Slab direct to site. In total, 32 pallets were used, equating to nearly 3,500m2 of insulation.For ease of installation, Rocksilk® Flexible Slab features a flexible edge which is designed to optimise friction fitting between studs, joists and rafters. MCR Property Group team found that its flexible edge combined with its lightweight design made the product much easier to install than alternative Rock Mineral Wool insulation they had used previously.Thanks to Knauf Insulation’s speed of delivery, MCR Property Group was able to keep to a tight schedule that saw Unity Square open its doors in September in time for the start of the academic year. And while most of the students probably won’t give a second thought to the insulation, they will enjoy their safer, warmer and quieter new homes!

The Priscilla Bacon Lodge in Norfolk is a new £12.5 million hospice that will provide state-of-the-art palliative care for 24 patients alongside day care facilities, a wellness centre, gym and community hub for those being cared for at home. It will also be used for education and research into palliative and end-of-life care. The facility, designed by LSI Architects and delivered by Morgan Sindall Construction, features both traditional masonry cavity walls, and a masonry rainscreen façade.  Meeting the brief At just two stories high, the building doesn’t fall under building regulations that ban combustible materials in the wall build-up. But even so, combustibility was a key factor when it came to specifying the insulation. Jordan Armstrong, Associate at LSI Architects explained: “As a practice we always try to minimise fire risk, especially for a project like The Priscilla Bacon Lodge, which will house extremely vulnerable people. So, it was essential that the materials we used were non-combustible, which meant mineral wool insulation was the only solution. “We regularly use Knauf Insulation products, so we specified DriTherm® Cavity Slab 32 for the cavity walls because it’s a high-performing glass mineral wool insulation that we expected could meet our required 0.16 W/m2K U-value. We were also keen to specify their Rocksilk® RainScreen Slab for partially filled cavity walls because then we would have one manufacturer for the whole build, and we think the products will work well together.” DriTherm® Cavity Slab 32 is full-fill insulation solution with a thermal conductivity of 0.032W/mK. While Rocksilk® RainScreen Slab for partially filled cavity walls is a rock mineral wool product with a thermal conductivity of 0.034W/mK. Both products are BBA certified for the application. In addition to non-combustibility and thermal performance, both products also offer sound reduction characteristics. Ease of installation Both DriTherm® Cavity Slab 32 and Rocksilk® RainScreen Slab contain a water repellent additive that preserves the integrity of the slabs while they are exposed during construction.  The products are also designed to be easy to install correctly. They are sized to suit standard centres for installation between wall ties or brick restraint systems. Slabs are robust so they can be manoeuvred into place while maintaining the flexibility required to adapt to minor imperfections in the substrate to prevent gaps that reduce thermal, fire and acoustic performance.  Lastly, they are both manufactured using ECOSE® Technology, Knauf Insulation’s unique bio-based binder, which contains no added formaldehyde or phenol. It is made from natural raw materials that are rapidly renewable, and is 70% less energy-intensive to manufacture than traditional binders, so it is more environmentally friendly. The product is soft to touch, easy to handle, and generates low levels of dust and VOCs. So, when it came to specifying the insulation for the Priscilla Bacon Lodge, Knauf Insulation’s DriTherm® Cavity Slab 32 and Rocksilk® RainScreen Slab for partially filled cavity walls ticked all the boxes. 

Recticel Insulation’s innovative insulation board - Eurowall +, which has a tongue and groove joints on all four sides to ensure an airtight fit and improved thermal performance, was selected for a desirable new housing scheme built beside one of England’s eminent waterways.The Magenta Court development in Apsley, Hemel Hempstead is a multi-award nominated social housing project on behalf of Dacorum Borough Council. The £6.5m scheme, which stands alongside the famous Grand Union Canal, comprises 29 one-and-two bedroom flats within four blocks. The buildings’ design was inspired by the surrounding wharf architecture present in a nearby listed cottage, papermill and Apsley Lock.Being delivered by main contractor Jarvis Contracting, working with architects RG+P, key to the programme’s success was achieving an energy-efficient building fabric. This led to the specification of Eurowall®+, a high-performance PIR solution from Recticel.This flagship product helps to achieve a 0.18 U-value with a 90mm-thick panel in a 100mm cavity. The lightweight, easy-to-handle board features a tongue-and-groove joint on its four sides, allowing it to be used as full-fill cavity wall insulation with a 10mm clear cavity. The additional space makes for a rapid, more convenient fit for bricklayers when it comes to installation.Simon Blackham, Technical Manager at Recticel explained:This was a tremendous project to be involved with. It’s a superb housing scheme in a great location. With the buildings’ overall thermal efficiency among the priorities, it’s the type of project Eurowall®+ was created for. Further, it enhanced the programme’s sustainable credentials by reducing on-site labour times, thanks to the additional space it affords installers.Eurowall®+ is an exemplar of how high-performance materials can maximise a home’s thermal performance through a fabric-first approach. Its selection for the Magenta Court development was crucial to the creation of a number of desirable, energy-efficient affordable homes, whilst playing a part in ensuring the contractor remained on track to complete the project to the agreed timeframe. About Eurowall®+:Eurowall® + is a premium, high performance full fill insulation board with precision cut tongue and groove joints on all four sides. This ensures that the boards lock tightly together minimising heat loss through thermal bridging. This unique joint offers increased protection against wind driven rain as well as improved windtightness. Eurowall® + is also designed with a 10mm cavity requirement in mind, so that space can be left for conventional bricklaying techniques.

Creating a Passivhaus home Balancing sustainability and style, Sort Trae is the culmination of a retired architect’s vision for a home and creative space that blends into a South Yorkshire hillside. HEM Architects helped the client to bring this dream to life, using Knauf Insulation’s glass mineral wool insulation to achieve the incredibly high Passivhaus standards for energy efficiency. Low carbon and high comfort The client envisioned a sustainable build using Passivhaus, a voluntary standard for designing and building properties with very low energy consumption, that offer high levels of comfort for their occupants. To achieve this, the levels of air tightness and thermal performance far exceed those mandated by building regulations. FrameTherm® Slab 32 was friction-fitted within the 140mm thick timber frame walls on the first floor, while DriTherm® Cavity Slab 32 was used to fill the stone-clad masonry cavity walls on the ground floor.  “We try to specify fully filled masonry cavity walls where possible, sometimes up to 200mm wide, to maximise the use of mineral wool insulation. It pays dividends for the client”, explained Liam Seaman, Architectural Technologist for HEM Architects. Thermal performance is critical to the Passivhaus approach. The FrameTherm® Slab 32 provided a calculated U-value of 0.137 W/m2K in combination with the black timber frame wall and cladding. For the masonry cavity wall on the ground floor, a fractionally higher U-value of 0.138 W/m2K was achieved using thermally broken wall ties and DriTherm® Cavity Slab 32. This has contributed to Sort Trae’s exceptional thermal efficiency. Because glass mineral wool is flexible and fibrous, slabs knit together and adapt to minor imperfections in the substrate. This tight fit contributed to an overall air change of 0.54 ach (air change per hour), comfortably below the Passivhaus standard of 0.6 ach, meaning the property is air-tight while still providing good ventilation. Sustainable practices Liam explained his reasons for choosing Knauf Insulation, “The alternative products are often oil-based and the application of these is outweighed by the environmental impact of their production and lifecycle.” Both FrameTherm® Slab 32 and DriTherm® Cavity Slab 32 are manufactured with ECOSE® Technology, Knauf Insulation’s unique bio-based binder that contains no added formaldehyde or phenol. The binder is made from natural raw materials that are rapidly renewable and is 70% less energy-intensive to manufacture than traditional binders. Knauf Insulation’s glass mineral wool insulation contains up to 80% recycled content, mostly glass bottles and jars. It is also compressed so more product can fit per pack or pallet, and less packaging is used. This means there’s more product per truck, resulting in fewer vehicles on the road, and less packaging per m2 of insulation. Achieving the Passivhaus standard In collaboration with HEM Architects and other suppliers, the client has created a stunning home and an inspiring set-up for her loom-weaving workshop. “It is general practice for us to specify Knauf Insulation as standard because we find the product information available to be really clear and useful”, Liam added. Knauf Insulation’s practical, detailed product information made it HEM Architects’ first choice to achieve the Passivhaus standard for thermal performance. 

Products from Kingspan Insulation’s Kooltherm and Therma ranges have helped to transform a derelict water tower in North Yorkshire into a striking family home, as featured on Channel 4‘s Restoration Man. By using insulation that delivers outstanding thermal performance from minimal thicknesses, the owners have been able to create a home that is not only sensitive to the building’s industrial past, but that functions as a cosy yet spacious family home.

As part of an exciting regeneration project in Cardiff, Lowfield Timber Frames specified SMARTPLY AIRTIGHT panels alongside a supply of their timber kits for a development of 12 two-bedroom houses in Heath, Cardiff.As part of an exciting regeneration project in Cardiff, Lowfield Timber Frames specified SMARTPLY AIRTIGHT panels alongside a supply of their timber kits for a development of 12 two-bedroom houses in Heath, Cardiff.The homes are built to strict Passivhaus standards, offering improved health and wellbeing conditions for occupants whilst requiring very low levels of energy for space heating or cooling. Additionally, using timber frame for the construction lowers the carbon footprint of the development.The major benefit of a Passivhaus build is the reduced energy consumption during the operating life of the structure. This will ultimately lead to reduced energy costs, heating bills, and even lower carbon emissions for the planet.The average air test result for the 12 homes came in at below 0.5 ACH. A Larsen truss panel (a lightweight wall extension which creates extra wall space to a house insulation) was also used in the project. It was 330mm deep with the finished wall make-up being closer to 500mm.Darren Jarman, Managing Director of Lowfield Timber Frames, commented: “The Highfields scheme in Cardiff was just one of several passivhaus schemes we have completed over the past 2 years. We now have an external wall build-up that not only meets the passivhaus standards, but also has extremely low embodied carbon credentials.“The external wall has been fire tested and achieves the airtightness required, all in all, reducing the heating requirements and the running costs of the property.”SMARTPLY AIRTIGHT is an airtight OSB/3 panel with integrated vapour control and air barrier properties for use as structural sheathing in timber frame structures. The airtightness is engineered into the OSB panel substrate, whilst the factory applied specialist surface finish technology provides increased and constant vapour resistance on the warm side of construction. The panels are suitable for both new build and renovations.The distinctive green layer of SMARTPLY AIRTIGHT is a UV cured coating providing increased and constant vapour diffusion factor. In addition, it provides a smooth and durable surface for taping the connections.The panels made to OSB/3 grade, are moisture resistant and can be used in humid conditions (service class 2). The hygroscopic nature of the OSB panel acts as a humidity buffer to help prevent interstitial condensation within the timber frame structure in limited cases of reverse diffusion.Jarman concluded: “Whilst there are other products available which will achieve the airtightness, we feel SMARTPLY AIRTIGHT is the most robust solution available and eliminates the possibility of accidental damage, resulting in a failed test.”The ambitious project is part of the ‘Cardiff Living’ programme, a 10-year partnership between Cardiff Council and Wates Residential, which will deliver 1,500 new homes at sites across the city.Discover more about SMARTPLY AIRTIGHT and its applications here: https://mdfosb.com/en/products/smartply-airtightFind out more about Lowfield Timber Frames here: https://www.lowfieldtimberframes.co.uk/Twitter: @LTFltd

ChallengeThe much acclaimed architect Zaha Hadid created the design for the Riverside Museum, which has already been dubbed ‘Glasgow’s Guggenheim’.The new riverside Museum provides an exciting new home for Glasgow’s transport collection. The development has a riverside location on a site where the River Clyde meets Glasgow’s other main river the Kelvin, and is adjacent to Glasgow Harbour.The dynamic new Riverside Museum displays Glasgow’s rich industrial heritage, which stems from the River Clyde. The Tall Ship is berthed alongside the Museum, creating a fantastic experience in this stunning setting.The brief for design and build roofing specialist Varla (UK) Limited was to find a flexible insulation that could meet the demanding U - value of 0.20 W/m2K that was continuous over both the walls and the complex 18,000 square metre roof. The Glasgow Museum of Transport is a complex, heavily engineered design and was the first major UK project for the renowned architect Zaha Hadid.Specialist Roofing contractor, Varla (UK) Limited started the search for a suitable material by contacting many insulation suppliers and holding supplier seminars at Varla’s Chester offices, challenging suppliers to propose a solution to meet the demanding specification for this unique project.SolutionVarla (UK) Limited chose to use Knauf Insulation’s FactoryClad Roll 32, a flexible insulation that meets the demanding U-value of 0.20 W/m2K across both the roof and walls.Rigid foam boards were ruled out early on, as they could not be fitted to the building’s complex curves. There was also a limited cladding zone that could not be altered. Many types of insulation were considered, but glass mineral wool roll provided the best thermal efficiency. The key to Knauf Insulation’s products being specified on this project was its ability to provide in-depth technical support, including complex three-dimensional heat flow modelling calculations. This allowed Knauf Insulation to produce a solution that met all of Varla’s insulation requirements by using a double layer of 100mm Knauf Insulation FactoryClad Roll 32. This is a flexible, lightweight roll of resilient Glass Mineral Wool with exceptionally high tear strength and a thermal conductivity of just 0.032 W/mK.In addition, Knauf Insulation FactoryClad Roll 32 is ideal for limiting the spread of fire since it holds a Euroclass A1 reaction to fire classification for non-combustibility and will not burn. Nor will it give off toxic smoke or suddenly ignite in a fire due to ‘flashover’. For public buildings such as this, superior fire performance is crucial.Once Varla (UK) Limited had decided on Knauf Insulation, it leaned on them heavily for technical support, utilising the unique 3D heat loss calculation support service, which ensured the correct product thickness was specified to meet the demanding project requirements.

A 1950’s office building has been transformed into a luxury apartment complex with a major refurbishment featuring insulated plasterboard and soffit insulation.

THE PROJECTRecticel’s Eurothane® GP and Eurowall® Cavity provided the quality PIR solution for two city-based social housing developments. Melody Gardens and Corporation Road in Salford, Manchester were built on behalf of Places for People and For Housing. Watson Homes carried out the work on both developments. For Melody Gardens, it involved the building of a four-storey block compromising 48 apartments; nine two-storey houses, and a bungalow. The properties were built on a 0.4-hectare site once occupied by a Catholic church.THE SOLUTIONEurothane® GP, a low-thermal conductivity panel, provided Melody Gardens’ groundfloor insulation. In conjunction with Eurowall® Cavity, it was also installed at Corporation Road which comprises 18 one-bed and 15 two-bed apartments. The products’ durable thermal performance ensured both developments become a valued addition to Salford’s social housing portfolio.Mike Watson, Construction Director at Watson Homes explained:"Recticel’s high-quality products were essential to ensuring the fabric of both developments was fitted with insulation that will fulfil the occupants’ long-term domestic needs. In terms of installation, the panels’ easy-fit properties made quicker and lighter work of a potentially challenging project."Used products:Eurothane GP: Eurothane® GP is a high performance PIR insulation board that is light weight, easy to cut, handle and install. Whether it’s a pitched roof, framed wall or floor, Eurothane® GP is the ideal solution amongst contractors and installersEurowall® Cavity:Eurowall® Cavity is a specialist high performance solution for cavity walls, with precision-cut straight edges to ensure gaps between boards are kept to a minimum. It has a low emissivity facing which delivers improved thermal resistance within the clear cavity.  

The three-storey structure designed by FaulknerBrowns, includes library and exhibition space, IT suite, 3D printers, and café. The development, completed in October 2016, is part of a £100 million regeneration masterplan which partners South Tyneside Council with Muse Developments. Creating a curved structure can pose a challenge, but the Kingspan TEK Cladding Panel was successfully engineered to provide a smooth, highly insulated exterior envelope. To achieve this, the structural insulated panels (SIPs) were designed and factory cut into narrow widths. This allowed them to be quickly and easily fixed to the concrete frame.

Smugglers Cove Adventure Golf is a tourist attraction at Bournemouth Beach. The 18 hole course is part of Bournemouth’s famous seafront, which has over 7 million visitors per year. For safety purposes, it was necessary to fit Stair Nosings onto a fire exit staircase at the site.

CHALLENGEWestfield, the world’s largest listed retail property company, is set to change the face of retail in the United Kingdom with the opening of its new flagship development – “Westfield London” – at White City, London.Beneath a spectacular, undulating glass roof, the £1.6 billion Westfield London destination combines over 150,000m2 of retail, restaurants, cafes, bars and leisure facilities to create the ultimate shopping and leisure destination.Westfield London will act as a catalyst for the redevelopment and regeneration of the wider White City area with a further £1billion investment expected in the immediate vicinity over the next 10 years.SOLUTIONKnauf Insulation supplied Rocksilk® RainScreen Slab as part of the rainscreen cladding system to the external stone clad façades of the development and internal stone clad stairwell and elevator areas. The specification of Rocksilk® RainScreen Slab provided both performance and installation benefits to both client and specialist installing contractor.Rock Mineral Wool has a Euroclass A1 reaction to fire classification to BS EN ISO 13501- 1, the highest classification available. With rainscreen cladding incorporated into building design fire performance is particularly important and, as such, a non-combustible component such as Rock Mineral Wool provides the ideal prevention against the spread of fire. The non-combustible nature of rock mineral wool ensures that it will not burn, will not give off toxic smoke and will not suddenly ignite in a fire due to ‘flashover’.Another key specification element related to the speed and ease of installation. The required thermal performance of the building was dependent on the correct installation of the specified insulation product. Rocksilk® RainScreen Slabs are easy to install down to their superior workability ensuring installation stayed within the tight time constraints. Rocksilk® RainScreen Slab is treated with a water repellent additive to ensure the building structure is protected against rain penetration and it can also be installed with either face adjacent to the sub structure.Rocksilk® RainScreen Slab provides an additional benefit for the installing contractor as it is designed to adapt to minor imperfections in the building’s substructure. The rock mineral wool product ‘knits’ together, ensuring intimate contact between slabs ensuring all joints are closed and thermal efficiency is maximised.Rocksilk® RainScreen Slab has excellent acoustic properties, which contributed towards the acoustic performance of the structure in order to comply with both sound insulation and sound absorption requirements.What’s more, individual packs of Rocksilk® RainScreen Slabs are compression packed together in Knauf Insulation’s innovative packaging method, Supakube. The advanced compression technology and strong packaging materials ensure the product is easy to transport and store, reducing environmental impact and causing minimal disruption on site and the surrounding area.

Four years ago, sustainable developer Citu set out to create homes 10 times more energy efficient than typical UK houses. To do this, the company invested in a state-of-the-art production facility where all the components for its properties are built offsite.Thermal performance is critical to energy efficiency. Citu wanted to go far beyond the regulations to achieve wall build-ups with an extremely low U-value of just 0.10W/m2K. This is at least three times better than the U-value achieved in most new build homes and fifteen times better than older houses.Adding offsite capabilityCitu turned to Knauf Insulation for advice and support in developing the offsite capability required for this level of thermal performance. Knauf Insulation’s Technical Support Team undertook extensive calculations and recommended the Blowing Plate Insulation System to install Supafil® Frame – a high performance, non-combustible blowing wool.Supafil® Blowing Wool lends itself to offsite production because it completely fills the cavity, without any voids even around complex penetrations – something that can occur when insulation slabs or rolls are cut to size. It is also a dry process, so operatives are not exposed to any harmful chemicals and it doesn’t require a dedicated production line.Instead, the system comprises a blowing machine and a filling plate. The system is modular allowing for phased investment. Citu opted to install the blowing machine in phase one, which allowed them to manually fill the panels. Phase two saw the addition of the blowing plate, semi-automating the process.Supafil® Frame can be run by a single operator, fits easily into the existing production line, and can even be moved quickly and swiftly to other areas in the manufacturing facility depending on Citu’s volume capacity requirements.Knauf Insulation’s Technical Support Team provided full training and support during each phase of installation.Insulating the panelsCitu homes are manufactured from wooden panels with a 300mm cavity. The blowing plate is positioned over the panel completely covering the cavity. Supafil® is then blown into the wooden frame to the specific parameters of each panel. All cavities are filled to the correct thickness; something that has been carefully calculated and tested by the Knauf Insulation Technical Support Team to ensure settlement does not occur. And because the machine is programmed to install the exact quantity of insulation required, there’s no waste.Supafil® is a high performance Blowing Wool. It is non-combustible with Euroclass A1 reaction to fire classification as well as providing excellent thermal and acoustic performance. It contains a silicone-based additive to ensure it is water repellent.As well as providing excellent thermal performance, Supafil® has great sustainability credentials. Knauf Insulation’s Glass Mineral Wool contains up to 80% of recycled content. This reduces the amount of virgin materials used and prevents around 60,000 tonnes of glass a year (350 million bottles) from going to landfill or polluting the environment. Knauf Insulation has also invested in advanced compression packaging. This means there’s less packaging used, so fewer lorries on the roads leading to a reduction in transport carbon emissions. All of which helps to support Citu’s goal that every home should be carbon zero to manufacture.By combining modern methods of construction with the very highest levels of thermal performance, Citu and Knauf Insulation are creating homes that reduce energy consumption and carbon emissions – homes that are fit for the future.

The Vaughan Way development in Leicester features state-of-the-art apartments above a two storey car park. While this gives residents the best of both worlds – city living and parking in a limited footprint – it represents a challenge for developers in the form of thermal bridging.Most car parks feature open walls to allow adequate ventilation of exhaust fumes, so the separating floor must be well insulated to prevent warm air from the flats escaping into the car park below. With this in mind, main contractor Winvic approached Knauf Insulation for advice on the best insulation to specify in order to achieve the specified U-value of 0.2 W/m²K.Knauf Insulation’s Technical Support Team conducted U-value calculations to determine the thickness of Soffit Linerboard required. They then worked closely with Winvic to provide technical advice to ensure all design considerations were addressed.Soffit Linerboard is a robust Rock Mineral Wool slab. It is a high-performance thermal insulation and offers excellent sound absorption to provide high levels of sound reduction; something residents will appreciate when their neighbours are parking below.Soffit Linerboard is also non-combustible, with an A1 Euroclass Reaction to Fire Classification, essential to comply with changes to the building regulations, as Vaughan Way will be more than 18m tall when complete.Soffit Linerboard is one of more than 40 Rock Mineral Wool insulation products produced at Knauf Insulation’s Queensferry plant. It is manufactured with ECOSE® Technology, Knauf Insulation’s unique bio-based binder that contains no added formaldehyde or phenol. It is made from natural raw materials that are rapidly renewable, and is less energy-intensive to manufacture than traditional binder, so it is more environmentally-friendly.Products made with ECOSE® Technology are soft to touch and easy to handle. They generate low levels of dust and VOCs, and have been awarded the Eurofins Gold Certificate for Indoor Air Comfort.The insulation was delivered direct to site by distributors Encon in Nottingham and was installed by sub-contractors L Reynolds.From the additional warmth, to noise reduction and improved safety, adding Soffit Linerboard to the separating floor between the car park and flats will make city living even more pleasant for the residents of Vaughan Way.

ChallengeWork is underway to create a new theatre that will transform the existing 1932 Royal Shakespeare Theatre whilst retaining the original Art Deco and Victorian elements of the building. Due for completion during 2010, the theatre will give artists and audiences alike the best environment in which to perform and enjoy Shakespeare with improved public spaces both inside and surrounding the theatre.The challenge for the project design is to blend the key aspects of the existing buildings with the new theatre designs. Specialist roofing contractor, Varla (UK) Limited were awarded the contract to design, manufacture and install the zinc standing seam roof and wall package. Varla (UK) Limited challenged Knauf Insulation to propose a solution to meet the demanding specification for this unique project.SolutionKnauf Insulation provided detailed ongoing technical support during the design stages of the project and proposed solutions based on the results of unique three-dimensional heat loss calculations. The unique 3-D calculation support service, provided by the Technical Advisory Centre, was an integral part of the product specification process to ensure that the exact thickness recommendations were proposed in order to meet the project’s specific U-value requirements.Knauf Insulation were able to provide a solution that met all of Varla’s insulation requirements by using 160mm of Knauf Insulation FactoryClad Roll 32. This is a flexible, lightweight roll of resilient Glass Mineral Wool with exceptionally high tear strength and a thermal conductivity of just 0.032 W/mK.In addition, Knauf Insulation FactoryClad Roll 32, recommended for this project, is manufactured from Glass Mineral Wool, which is ideal for limiting the spread of fire since it holds a Euroclass A1 reaction to fire classification for non-combustibility. The product will not burn, will not give off toxic smoke nor will it suddenly ignite in a fire due to ‘flashover’. For public buildings such as this, superior fire performance is crucial.

ChallengeTargeted with achieving a minimum BREEAM rating of Excellent and with only a short window of time to complete the project, Associated Architects, who designed the building, needed insulation products that would meet strict thermal and environmental requirements – as well as a manufacturer that could offer quick turnaround times and a high level of technical support.SolutionWith the help of Knauf Insulation specification manager, Marc Lawson, a through wall solution using 5,000m² of Knauf Insulation’s 100mm Rocksilk® RainScreen Slab – a rock mineral wool slab containing a water repellent additive, specifically designed for rainscreen cladding systems was used. It is quick and easy to install and is simple to cut and fit around brackets. The slabs knit together with no need to tape the joints – ensuring maximum acoustic and thermal performance, with no air gaps. Knauf Insulation’s Rocksilk® RainScreen Slab is also non-combustible and has the highest Euroclass A1 reaction to fire classification, as well as excellent sound absorption performance.To further enhance the thermal properties of the element, 10,500m² of Knauf Insulation’s Rocksilk® Flexible Slab 100mm, was installed in two layers within the SFS system. Designed to friction fit between metal studs, rafters and joists, Rocksilk® Flexible Slab is a multi-purpose rock mineral wool insulation slab, which provides excellent thermal and acoustic performance.Chris Kinman, Senior Design Manager at Willmott Dixon commented; “Knauf Insulation’s products are easy to handle and cut which makes them very easy to use on site. The first phase of the project has gone well, and the architect has adopted a similar approach to Phase 2 - which is testament to the excellent performance so far. Overall, we have been very impressed by the help and support we have received from Knauf Insulation on the project, and we have since recommended them to other colleagues."Rocksilk® RainScreen Slab and Rocksilk® Flexible Slab rock mineral wool products are made with ECOSE® Technology, a formaldehyde-free binder derived from rapidly renewable materials, instead of traditional petro-based chemicals used in other insulation. Additionally, ECOSE® Technology is up to 70% less energy intensive than traditional binders.

Central M40, a 70 acre industrial estate situated off J11 of the M40 in Banbury, comprises six warehouses totalling over 1 million sq ft of accommodation – equivalent to roughly 17 football pitches. The estate was developed speculatively by db Symmetry*, who specified CA Group’s robust Twin-Therm® Built-up Roof and Wall systems.A key component of the Twin-Therm® building envelope system is Therma-Quilt, a bespoke high-performance Glass Mineral Wool insulation. It is manufactured by Knauf Insulation specifically for CA Group and is the result of a long standing partnership between the two companies.Therma-Quilt is ideally suited for non-residential cladding applications. It offers outstanding performance and functionality available in different thicknesses to support the Twin-Therm® system, delivering enhanced thermal U-values as low as 0.09W/m2K. It is non-combustible with a Euroclass A1 Reaction to Fire Classification, meaning it will not contribute to the development or the spread of a fire.Therma-Quilt is also a high-performing acoustic insulation. In Twin-Therm® roof applications, it helps reduce the drumming effect of rainwater, while in Twin-Therm® wall applications, it aids with sound reduction and can minimise the reverberation of internal sound when used in conjunction with perforated metal liner sheets. Therma-Quilt has been developed with water resistance in mind and uses materials that help prevent water ingress.The Twin-Therm® system has been designed with sustainability in mind and Therma-Quilt is no exception. Knauf Insulation’s Glass Mineral Wool products contain up to 80% recycled materials. This saves on virgin raw materials and energy demands, cuts carbon emissions, and reduces waste going to landfill.It is manufactured with ECOSE® Technology, Knauf Insulation's unique bio-based binder that contains no added formaldehyde or phenol. It is made from natural raw materials that are rapidly renewable and is 70% less energy-intensive to manufacture than traditional binder, so it is more environmentally-friendly.Products made with ECOSE® Technology are soft to touch and easy to handle. They generate low levels of dust and VOCs and have been awarded the Eurofins Gold Certificate for Indoor Air Comfort.In total, more than 70 tonnes of Therma-Quilt insulation were used on the six megasheds on the Central M40 development. While the industrial estate was built speculatively, its strategic location has previously attracted premium occupiers including Hellofresh, Prodrive Motorsport, TVS Supply Chain Solutions and Rinkit.Thanks to the Twin-Therm® system with its Therma-Quilt insulation, the warehouses have achieved BREEAM ‘Very Good’ ratings, while the businesses using them will enjoy more comfortable, warmer and safer working environments – and lower energy costs. *db Symmetry has rebranded as Tritax Symmetry

The Crouch End Picturehouse in North London is an interesting example of how Kalwall® can be used to convert an ugly 1950’s concrete building into a state-of-the-art space suitable for the 21st Century.  •   This project by Panter Hudspith Architects forms part of a wider initiative within the London suburb of Haringey aiming to re-establish the area as one of London’s cultural and arts centres. The result is a remarkable transformation of a building, originally a factory then an office, into a £4.5 million cinema complete with café, bar, restaurant and community rooms.  •   The unique style of this four-screen cinema has attracted much interest, not only because of the dramatic transformation but also because of its new external elevation. •   The use of Kalwall, coupled with other sustainable measures including solar panels and a green wall, means the picturehouse has achieved a BREEAM rating of Very Good. The Solution Panter Hudspith Architects replaced the original curtain wall and specified Kalwall® for the front elevation. Unusually, this unique translucent cladding is fitted with a tight 150mm wide grid, known as Verti-Kal™, which not only serves to emphasise height but is the first of its type in the UK. On this scheme the Kalwall panels also insulate to 0.78 w/m2 making the building eye-catching and sustainable. Unlike conventional glazing, Kalwall eliminates shadows and glare and the stark contrasts of light and shade. The system also enhances simplicity by eliminating the need for blinds, curtains or solar control. Even on cloudy days, the interior is bathed with natural daylight, which means less artificial lighting and, because Kalwall is highly insulating, energy costs are reduced. Kalwall is increasingly being used in the UK for new buildings and also for the refurbishment of cladding or rooflights on aged buildings. One of the main attractions of specifying Kalwall is its unique effect on both the interior and exterior. Although translucent, it offers the big advantage of privacy while the elevations appear crisp and simple. When illuminated at night they emit an inviting ethereal glow.  The CommentsArchitect James Jeremiah comments, “This is the first time we’ve specified Kalwall and it fulfils our vision of retaining the modernist characteristics of the building. One of our original concepts for the building was of a zoetrope (one of the earliest forms of moving image) and there’s a strong history of using transparency in films with people moving behind the shadows. We felt the Kalwall system was a very good fit for what we wanted to achieve”. Amanda Birch, Technical Editor Building Design writes, “To appreciate fully the building’s transformation, it is best viewed from the street. The concrete structure has been retained along with its striking line of concrete columns, which are now a strong feature of the front elevation. The original coloured insulated glass panelled system has been replaced at first and second floor levels with Kalwall’s 75mm thick insulated cladding system creating a dynamic façade that is particularly effective at night.

Our underfloor insulation boards complete the energy efficient envelope for a new office building

The unique and stunning curved blue glass cladding specified for the new hospital posed several design challenges. The insulation used needed to provide high thermal performance, be able to conform the curved surface and be completely non-combustible since the building is in excess of 18m. SuperFOIL Insulation was approached to provide replacement insulation that would meet all fire safety standards and which could be applied without requiring changes to the exterior or interior design of the building. After careful consideration as to what would be the most suitable solution, we supplied 5,500m² of our non-combustible SFNC insulation. SuperFOIL SFNC is the only insulation of its kind to be certified by the Building Research Establishment (BRE) as European Class A1 Non-Combustible, which is the highest possible rating of fire safety.

The unique and stunning curved blue glass cladding specified for the new hospital posed several design challenges. The insulation used needed to provide high thermal performance, be able to conform the curved surface and be completely non-combustible since the building is in excess of 18m. SuperFOIL Insulation was approached to provide replacement insulation that would meet all fire safety standards and which could be applied without requiring changes to the exterior or interior design of the building. After careful consideration as to what would be the most suitable solution, we supplied 5,500m² of our non-combustible SFNC insulation. SuperFOIL SFNC is the only insulation of its kind to be certified by the Building Research Establishment (BRE) as European Class A1 Non-Combustible, which is the highest possible rating of fire safety.

This multi award-winning museum has taken form with a copper clad envelope featuring high quality rainscreen insulation and pitched roof insulation

DescriptionSoldi Investments completed the new Lidl store in Chichester, West Hampnett Road.  Soldi Investments machine applied the LIDL External Render System onto Poroton blocks externally using as Base Coat: Bauprotec 850 M – Lightweight Lime Cement Render and as Finish Coat; Mineral Finish Coat K. As Key Coat: Change of substrate concrete/steel pillar/Poroton block or mass concrete and insulated plinths: Bauprotec RHS Multi-Purpose Render with the addition of Bauprotec SLP for plinths.For the internal Poroton walls Smet One Coat Projection Plaster was used at a thickness of 15mm. One Coat Projection Plaster Hard Coat is a factory-produced hard coat One Coat Gypsum Plaster designed for machine application produced to EN 13279-1. It is manufactured from a controlled blend of selected gypsum and other components to give a high-quality, high-strength plastering product that is suitable for use in internal plastering.The LIDL render spec, available from SMET consists of:Bauprotec 850 M is a factory-produced Lightweight Lime Cement Render, specially designed for machine or hand application produced to EN 998-1: 2010 and is CE Marked.Bauprotec RHS is a CE Marked, factory-produced highly polymer-modified render specially designed for hand and machine application produced to EN 998-1: 2010.Mineral Finish Coat – K is a CE marked, factory-produced, mineral-based, high-quality finish-coat render, specially designed for hand and machine application to EN 998-1, 2010.Bauprotec SLP is a CE Marked, factory-produced Lightweight Sand & Cement Render specially designed for hand and machine application produced to EN 998-1: 2010.The special render properties; lightweight, low thermal conductivity, high yield, and Smet Supported Partner superior technical backup, are key factors in choosing SMET.SMET is committed to delivering consistently superior quality, German-made Render Systems to Lidl Plastering and rendering/plastering contractors across the UK and ROI.  If you’d like to speak to us about your Lidl job – contact SMET. All LIDL spec SMET Render System products are available directly from Smet Building Products Ltd, which ensures the contractor has a superior level of technical backup in the machine application of the LIDL specification.

Leading partitioning specialist, Style, has launched a new glass sliding wall solution for balconies and terraces (BSW). Transforming a balcony into functional space, glass panels are used to enclose the area, creating a barrier against weather and noise without impeding the view. On fine days, the upper section of the glass panels can be neatly folded and stacked to one side, allowing people to sit out and enjoy the sunshine.For terrace rooms that open straight out into a garden or external seating area, Style’s new glass sliding wall allows the boundary between the two spaces to be easily removed on sunny days, whilst successfully combining weather protection with uninterrupted views of the outside during inclement weather.With a discrete guidance track that can be fitted flush to the floor, the BSW system creates a truly a streamlined aesthetic. “This is an exciting addition to our portfolio of glass moveable, folding and partitioning walls,” said Mark Cowley, who heads up the glass solutions division at Style. "With space at a premium, it makes sense to extract the maximum functionality from what is available.”“Our sliding-folding glass wall system brings the outdoors in, effectively expanding the living space in residential homes. In commercial settings, such as restaurants for example, the BSW can be used to increase capacity by making use of a balcony or external area that would otherwise only be enjoyed in good weather.” Making for a welcoming environment, even when a terrace room or balcony is entirely enclosed by the glass panels, air still circulates internally thanks to tiny, 3mm gaps between that provide continuous ventilation. Any condensation is quickly filtered outside thanks to unobtrusive drainage vents and guttering.Fitted with a sophisticated roller system, the individual glass panels also incorporate autonomous pivot point identifiers, ensuring smooth and effortless manoeuvrability every time.Ideal for residential and hospitality settings, the BSW system also offers opportunities for sports clubs, retail outlets and commercial offices, wherever a more enjoyable experience could be offered by opening-up an internal area to incorporate an outdoor space.

ChallengeThe Building Centre, a central information point for all sectors of the construction industry, recently refurbished its London based headquarters. The second stage has seen Knauf Insulation Acoustic Roll supplied to the Construction Products Association, the UK Green Building Council and Design for Homes offices located on the first floor.In order to maximise all potential space available to the offices, it was essential to select a product that would take up as little space as possible, while satisfying the environmental and acoustic criteria required to achieve the BREEAM ‘excellent’ rating.SolutionTo accomplish this, 50mm Acoustic Roll was specified as it is lightweight, flexible, non-combustible and provides a high level of sound absorption, furthermore, it has been specifically designed for friction fitting between members at 400mm and 600mm centres. Acoustic Roll significantly improves the sound insulation performance of partitions whilst at the same time delivering improved thermal and fire performance. Plus, thanks to ECOSE® Technology, offers outstanding environmental credentials.Knauf Insulation products with ECOSE® Technology are made with a formaldehyde free binder technology derived from rapidly renewable, bio-based materials, which reduces embodied energy and delivers superior environmental sustainability. The insulation doesn’t look or feel like any other insulation. It is naturally brown in colour as there are no artificial colours or dyes added and it produces a ‘super softer’, odourless and easier to handle insulation.Colin Henderson, CEO of the Building Centre comments on how specifying Knauf Insulation was an easy decision to make: "After looking at the requirements and from our existing knowledge of Knauf Insulation, we knew the company would be able to meet all our needs quickly and efficiently."Maria Morgan, Market Manager – Building, Non Residential at Knauf Insulation explains: “Our unique position in having a broad product range, coupled with our expertise within the industry, enabled us to fully advise and install the appropriate insulation solution for the Building Centre.”

Eurowall®+, Recticel’s innovative full-fill cavity wall PIR board, has been chosen for a new affordable housing development. With its advanced tongue and groove joint, it helped to achieve the project’s desired U-value whilst ensuring a ‘built as designed’ envelope.In total, 2000m2 of Eurowall®+ board was installed as part of a £3.3m new-build project in Bedmond Road, Abbots Langley – a large, picturesque village in Hertfordshire. On completion, the 17-home development on behalf of housing association, Thrive Homes, will introduce ‘good quality’ properties to the area. In order that the buildings achieved the regulatory U-value, the insulation needed to ensure a high-quality build whilst being simple to install. Eurowall®+ met both requirements comfortably.  Jarvis Contracting, in conjunction with architects, Avebury, was selected to deliver the scheme. It included the installation of 90mm-thick Eurowall®+ insulation, which earns its billing as Recitcel’s ‘flagship’ product due to its innovative composition and exceptional thermal performance. The boards have a tongue and groove joint on all four edges to ensure they lock tightly together. This inventive format helps to eliminate moisture ingress and possible heat loss through poor joints, whilst offering bricklayers a faster way to build. Once fitted together the boards created a thermally tight envelope, ensuring the fabric-first approach resulted in warm, efficient homes for the Bedmond Road project.  Eurowall®+ can achieve a 0.18 U-value with a 90mm-thick panel in a 100mm cavity. To reach the same thermal performance with mineral wool, for example, the project would require a much thicker insulation. Therefore, Eurowall®+ helps reduce a building’s footprint; a crucial characteristic where plot size is limited.  Indeed, the 10mm air gap, which is created by a 90mm Eurowall®+ PIR board achieving a U-value of 0.18 W/m2K in a traditional 100mm masonry cavity wall, helps speed-up installation times for a more cost-effective build in comparison with other rigid full-fill solutions.Simon Blackham, Technical Manager at Recticel Insulation explained:"Eurowall®+ benefits the installer, due to its slim composition facilitating a more rapid, effective installation, whilst its performance ensures regulation energy requirements are achieved. Such all-round capabilities made it ideal for the Bedmond Road project. It didn’t disappoint on either count."Strong and durable, Eurowall®+ will not degrade or deteriorate due to moisture. This means its thermal performance will be maintained for the long-term comfort and wellbeing of the future occupants of this fine-looking and much-welcome new housing development. About Eurowall®+:Eurowall® + is a premium, high performance full fill insulation board with precision cut tongue and groove joints on all four sides. This ensures that the boards lock tightly together minimising heat loss through thermal bridging. This unique joint offers increased protection against wind driven rain as well as improved windtightness. Eurowall® + is also designed with a 10mm cavity requirement in mind, so that space can be left for conventional bricklaying techniques.

The size and poorly insulated design of the Avon Fire & Rescue Service's existing building makes it uneconomically expensive to maintain and run. To address this, the building is being demolished in stages with a new fire station being built on a much smaller footprint. The energy performance of the building envelope was a key consideration. A target U-value of 0.23 W/m²·K was set for the walls of the building. To help achieve this Kingspan Kooltherm K15 Rainscreen Board was specified. This has allowed the Service to not only save lives, but also energy and money.

BH2 is a £30m development creating a newly-constructed leisure complex in Bournemouth  •  Originally a two acre NCP car park and bus station, main contractors Vinci has built a new 10 screen Odeon Multiplex cinema, café, casino, restaurant and retail complex.  •  Structura was appointed to design and supply Kalwall translucent facades to enclose the external fire escape routes around the perimeter of the building.  •  Structura installed multiple Kalwall translucent elevations, totalling over 1000m2, providing natural daylight to internal areas by day and a soft ethereal glow which brings the area to life at night.The SolutionPanter Hudspith Architects replaced the original curtain wall and specified Kalwall® for the front elevation. Unusually, this unique translucent cladding is fitted with a tight 150mm wide grid, known as Verti-Kal™, which not only serves to emphasise height but is the first of its type in the UK. On this scheme the Kalwall panels also insulate to 0.78 w/m2 making the building eye-catching and sustainable.Unlike conventional glazing, Kalwall eliminates shadows and glare and the stark contrasts of light and shade. The system also enhances simplicity by eliminating the need for blinds, curtains or solar control. Even on cloudy days, the interior is bathed with natural daylight, which means less artificial lighting and, because Kalwall is highly insulating, energy costs are reduced.Kalwall is increasingly being used in the UK for new buildings and also for the refurbishment of cladding or rooflights on aged buildings. One of the main attractions of specifying Kalwall is its unique effect on both the interior and exterior. Although translucent, it offers the big advantage of privacy while the elevations appear crisp and simple. When illuminated at night they emit an inviting ethereal glow.The CommentsArchitect James Jeremiah comments, “This is the first time we’ve specified Kalwall and it fulfils our vision of retaining the modernist characteristics of the building. One of our original concepts for the building was of a zoetrope (one of the earliest forms of moving image) and there’s a strong history of using transparency in films with people moving behind the shadows. We felt the Kalwall system was a very good fit for what we wanted to achieve”.Amanda Birch, Technical Editor Building Design writes, “To appreciate fully the building’s transformation, it is best viewed from the street. The concrete structure has been retained along with its striking line of concrete columns, which are now a strong feature of the front elevation. The original coloured insulated glass panelled system has been replaced at first and second floor levels with Kalwall’s 75mm thick insulated cladding system creating a dynamic façade that is particularly effective at night.

Ashwood House is a development of Manhattan-style apartments in the desirable Surrey commuter town, Camberley. Situated in a converted 1960s office block, developer Berkeley Homes Southern Ltd needed to ensure the 116 luxury flats were as energy efficient as possible.This was a particular concern for the properties situated above the first floor car park, which has open walls to allow adequate ventilation of exhaust fumes. As a result, the specification stipulated a U-value of 0.25 W/m²K.Chris Body, Business Development Director at RPN Ltd, the specialist sub-contractor at Ashwood House said: “We approached several insulation manufacturers to discuss the different options available. Knauf Insulation’s Rocksilk® Soffit Linerboard Standard met the brief in terms of thermal and fire performance. It can be used on uneven substrates and looks fantastic – all of which were key priorities for Berkeley Homes.”Aesthetic appealHow the insulation looked was an important part of the brief as Berkeley Homes wanted a solution that would be aesthetically pleasing. Rocksilk® Soffit Linerboard Standard features a black glass veil facing, so no additional finishing was required. This meant that RPN Ltd has been able to install the slabs perpendicular to the ring beam to create a quilted effect across the ceiling.A high-performance solutionThe other specification factors were thermal performance and fire safety. Knauf Insulation’s Technical Support Team undertook U-value calculations to determine that 130mm Rocksilk® Soffit Linerboard Standard would be required. It is manufactured from Rock Mineral Wool, has a thermal conductivity of just 0.034 W/mK and is designed to insulate structural soffits in applications such as open sided car parks.It is non-combustible with the best possible Euroclass A1 reaction to fire classification, so will not contribute to the development or spread of a fire should it occur. Rocksilk® Soffit Linerboard Standard also has excellent sound absorption characteristics so will help to ensure that residents are not disturbed by the noise of cars parking beneath their flats.Better for installersThe insulation was supplied by distributors CCF Ltd who delivered it to the site in line with the schedule of works. It was then installed by RPN’s specialist team.Rocksilk® Soffit Linerboard Standard is easier to install correctly than other insulants. The product recipe makes each slab rigid, which ensures the insulation maintains continuous contact with the substrate, preventing gaps that can reduce thermal, fire and acoustic performance.Rocksilk® Soffit Linerboard Standard is manufactured with ECOSE® Technology, Knauf Insulation’s unique bio-based binder that contains no added formaldehyde or phenol. It is made from natural raw materials that are rapidly renewable, and is less energy-intensive to manufacture than traditional binders, so it is more environmentally friendly.Products made with ECOSE® Technology are soft to touch and easy to handle. They generate low levels of dust and VOCs, and have been awarded the Eurofins Gold Certificate for Indoor Air Comfort. This means they are kinder to the installers who use them too.A safe solutionUltimately, using Knauf Insulation’s Rocksilk® Soffit Linerboard Standard means the Ashwood House car park ceiling not only looks aesthetically pleasing, but it helps to meet the increasing demand for non-combustible insulation in car parks too.