"roof finish underlays and insulation"

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 finish to the asbestos roof and asbestos cladding on this property was faded and the roof leaked in several places, along with the gutter. Liquasil's silicone roof coating, Asbestoseal, was chosen to seal the roof and dramatically improve the aesthetic appearance using specially made RAL colours to the match the original finishes. The asbestos cement gutter was also lined with the Liquasil liquid gutter liner to form a permanent, bonded solution.

Failing factory finishes and cut edge corrosion were present across the entire roof and Liquasil's Metalseal metal roof coating system was specified as the most appropriate solution. The roof was cleaned and all failing finishes and rust was removed as far as reasonably practicable. The roof was then coated. In this case, two colours were employed. Liquasil is the only company able to produce silicone coatings in any RAL colour.

The Flower Bowl is a large new build leisure complex in in a semi-rural Lancashire location close to Preston. It offers a range of attractions, including an indoor bowling alley, a curling rink, a crazy golf course and golf simulator, a cinema and restaurants.Green roof components:Sika Liquid Plastics‘ Decothane Root Resistant.Sika Liquid Plastics‘ Decotherm insulation.S-VAP 500e Vapour Control and Moisture Barrier Layer.Green Roof Detailing Coat.

ChallengeBREEAM ‘excellent’ was a key requirement for this project. As a European centre for bioenergy research, Aston University was keen to maintain the sustainable ethos of EBRI within the building itself and make improvements wherever they could be accommodated.SolutionKnauf Insulation worked closely with Associated Architects to specify the correct rainscreen insulation product to meet the necessary requirements.The insulation layer is a fundamental component of any successful rainscreen cladding system and rock mineral wool insulation delivers a number of advantages in this type of application. Knauf Insulation’s Rocksilk® RainScreen HD Slab in a bespoke 120mm size was ideal for the project, delivering exceptional thermal, fire and acoustic performance.Insulation was specified with the help of Knauf Insulation’s regional specification manager Marc Lawson and Technical Advice and Support Centre (TASC). To successfully mitigate the differing dimensions of the constituent elements of glass channel, blockwork substrate and insulation, a smaller than standard slab size was specified, allowing for the edge of the slabs to align behind the joints in the glazed façade, providing an aesthetically pleasing appearance.The early involvement of the regional specification manager in the project and their relationship with the architects and client at the concept stage, made for a very smooth delivery and ensured the required U-value of 0.22W/m2K would be achieved without the need to re-design elements later in the project.Knauf Insulation’s Rock Mineral Wool products deliver exceptional environmental performance and are manufactured using the innovative ECOSE® Technology - a revolutionary, bio-based, formaldehyde free binder technology that is based on rapidly renewable materials, rather than petro- based chemicals. This was a key reason to the insulation being specified for this exceptionally sustainable project."Sustainability is at the very heart of all we do at Aston University. We are delighted with the results: an iconic building that conducts sustainable research in a truly sustainable environment." Alan Charters, Executive Director of Capital Development at Aston University

Friesland Campina CHALLENGE An absolute must for refrigerated warehouses or dairy processing facilities is to try to keep the building as cool as possible and to avoid all causes of heat, in order to keep the cooling costs as low as possible. Some decisions can have detrimental effects though. Mechanical fixing of the roofing membrane for example, in case the wrong fastenings are used. Thermal bridging may cause cold – or in this case heat - penetrating through the flat roof fasteners resulting in higher energy bills. And, quite important as well, mechanical fixing will perforate the vapour control layer, which in the case of cool buildings sits uppermost on the insulation. The result being moisture-related damage to the insulation! Furthermore, it has also been proved that the darker the roofing membrane, the less the sunlight will be reflected, the more heat will be absorbed. Again resulting in escalating energy costs. Waterproofing a cool storage warehouse is definitely not easy! In this regard Friesland Campina were looking for a durable and ecological roof solution for their brand new refrigerated distribution centre in Maasdam. SOLUTION RENOLIT came up with the perfect answer: the RENOLIT ALKORBRIGHT cool roof membrane. Here’s why! RENOLIT ALKORBRIGHT is a completely white PVC membrane reflecting the sunlight up to 90%. Absolutely the highest solar reflectance rate ever. Thanks to this membrane, which prevents the interior from warming up, there will be no extra air conditioning expenses. In addition, an extra protective coating makes sure less dirt sticks to the roofing membrane. This layer will in turn help to maintain a durable reflection. 

This asbestos cement roof in Norwich was soiled with moss and lichen covering the surface and had leaks in several places. Liquasil's BBA Approved Asbestoseal 20 asbestos roof coating was specified to extend the life of the roof and provide an aesthetically pleasing finish. The Contractor, ID Asbestos Ltd, carried out the works safely and efficiently.After being steam cleaned, the metal fixings were treated with our SWT Corrosion Primer and all fixings and cracks were sealer with Non-Sag Sealer. The whole roof was then coated with Asbestoseal 20 to provide a sleek new finish to the old asbestos sheets.Liquasil's Latent Defects Insurance Guarantee was provided upon completion.

BackgroundWith stunning southerly views across to the Isle of Wight and also westerley along the Solent to Hayling Island, Portsmouth and the Millenium Tower, Marineside, a development of three-storey properties at Bracklesham Bay, is a dream location for anyone to live.However, whilst a prominent beachfront location comes with spectacular sunsets and unrivalled tranquillity, it does leave buildings highly exposed and prone to weather damage.This was the case with the Marineside development which showed signs of high coastal corrosion and were in severe need of regeneration both aesthetically and internally to address thermal underperformance.K Systems teamed with CBG, Envirorend SE, and Harrington Design to complete the low-rise refurbishment project, with three main objectives:- Remediate problematic substrate- Improve thermal performance for the benefit of residents- Revitalise a tired and unattractive exteriorAs with all projects, K Systems began a detailed scope and specification process with full involvement from all parties, including deploying digital technology to provide an inspirational viewpoint for the client to understand what the refurbishment would look like at completion.Our ServiceFollowing extensive planning, K Systems brought the client’s vision to life and created a beautiful collection of revitalised waterside homes on the banks of Bracklesham Bay.The refurbishment of Marineside wasn’t a straightforward project and required comprehensive scoping to ensure optimal delivery and 100% satisfaction levels amongst current residents.Therefore, it is a notable triumph for K Systems to have delivered a successful project, within budget, without delay or compromise on quality, that not only met but exceeded the requirements and expectations of the client.Each structurally sound, aesthetically pleasing dwelling boasted excellent thermal performance properties, achieving a U-value of 0.30W/m²K, allowing residents to benefit from more thermally efficient homes and experience a reduction in energy consumption.K Systems in collaboration with CBG, Envirorend SE and Harrington Design delivered beautiful, clean, crisp, aesthetically attractive properties, each with a protective exterior finish which will provide resistance to the elements for years to come.Technical Project DetailsOnce the existing façade was removed it was clear that the block substrate had high level corrosion due to the harsh coastal environment it had endured since being built in the 1940s.Multiple areas of the three buildings had to be completely removed and replaced using a medium density block that achieved superior pull-out test results. This was a recommendation by K Systems which enforced confidence with not just the client but the homeowners too as the best way to ensure longevity of the buildings.The removal also revealed that the substrate was uneven and unsafe. K Systems identified that extensive dubbing out was also needed with these buildings. Dubbing out meant the insulation boards were installed line and level giving a crisp and professional finish.The Marineside buildings were solid block construction making them extremely inefficient and presented an expense to the homeowners during winter months due to insufficient thermal performance.Utilising its years of unparalleled expertise, K Systems specified the industry-proven Mineral Wool insulation system for the project to address the aged façade and significantly boost the thermal performance of the building.K Systems Mineral Wool insulation (a mat of rock fibres which prevents the movement of air) has an industry-leading ability to generate exceptional thermal performance. That made it the perfect choice for the Marineside refurbishment as it would combat the heating issues faced by residents whilst retaining the solid foundations of the existing building.Other technical benefits which made the K Systems 110mm Mineral Wool system the ideal specification for this refurbishment include:- its level of fire resistance and non-combustibility, ensuring the building met all safety regulations required for residential buildings in England- its excellent acoustic properties, ensuring coastal noise absorption further enhancing the peaceful and tranquillity of the area- its environmentally friendly composition as it is free from gases with ODP (ozone depletion properties) or GWP (global warming potential)Due to the coastal location and exposure to the elements, it was vital that this refurbishment guaranteed total water tightness. K Systems worked closely with the roof installers ensuring that the parapet details were correctly detailed making the system as a whole watertight.The exterior finish was just as important as the internal construction and detailing. The Bracklesham Bay area has a level of prestige and the aesthetics needed to reflect that. K Systems finished the Marineside complexes with a silicone thin coat render, which is extremely breathable and resistant to the elements, in shades Limestone White and Granite. This completely transformed the aesthetic of the residential blocks making them much more appealing to potential dwellers.Envirorend SE commented:“ We secured the refurbishment works at Marineside , for a good client and works started in January 2022. The scope of works was to make the 3 blocks more energy efficient. Situated directly on the beach, the location made the install very challenging as the weather was not very forgiving at that time of year. The existing substrate was all over the place so a lot of effort was put in to get the walls looking line and level while staying within the remit of the specification. Works were completed in July 2022 and to a very high standard for all to see. “

The circular building, where legends like The Rolling Stones, Jimi Hendrix and Pink Floyd began, was redeveloped and reopened in 2006. FOAMGLAS® insulation was used for the floor, the façade and the flat roof, ensuring water and vapour resistance despite the open nature of the façade. It is also non-combustible and waterproof.

NV Buildings is one of the most prestigious and iconic residential sites in Greater Manchester.The distinctive sail-shaped buildings are a major landmark in Salford Quays. The blocks have a curved main elevation providing a unique aesthetic on the skyline and are one of the most popular developments in the area.With a prominent location in Salford Quays, adjacent to the Lowry Theatre and Media City TV headquarters, the apartment blocks feature in many iconic photos of the area.The project itself was funded by the Building Safety Fund, the Government’s £4.5 billion fund to remove unsafe non-ACM cladding on residential and mixed-use properties that are 18 metres and over and do not meet building safety regulations.Our Approved Installer QFF Facades were contracted to complete the exterior wall insulation and rendering which upgraded the fire performance of the cladding, ensuring the safety of both the building and residents.Three 15 storey blocks were refurbished, with a safe and thermally efficient façade solution.Our ServiceWe worked in close partnership with QFF Facades throughout the duration of the project.Deliveries and install were strictly monitored and a very systematic approach was followed. A planned install programme was agreed to ensure minimal disruption to the residents of N V Buildings, who remained in their homes while the work was carried out on this prestigious site.We produced a bespoke specification which included various detailing such as soffits, balconies, and full height panels.A partnership approach was vital, as we worked with QFF Facades, Thomasons Consulting engineering, and the fire officer to agree upon and deliver specific detailing at abutments, openings, and for the drained cavity of the façade system.Particular attention to detail was afforded to the drained cavity fire-stops, including fire-stop details between floors, at party walls for each apartment and around openings.As part of our service commitment, our technical team were available to provide hands-on-guidance, offer support, technical guidance and ensure high levels of quality.Technical Project DetailsAfter testing, the existing cladding had been deemed a fire safety risk by experts and therefore needed to be removed and replaced with anon-combustible alternative.The project was a strip-and-refit of a drained cavity external wall insulation system, which included an expanded polystyrene insulation system.Our Approved Installer QFF Facades installed a K Systems Exicco M, Drained Cavity External Wall Insulation System for steel frame buildings, utilising Mineral Wool insulation. This high performing system provides high levels of fire resistance and non-combustibility.The fire classification of the façade for N V Buildings was upgraded to A2-s1, d0 and therefore complies with the latest building regulations, ensuring the safety of its residents.For the finish, high-performance thin coat silicone render (Silicone TC) was specified. Our Silicone TC render has a number of fantastic advantages including ease of application, and its hydrophobic properties make the render low maintenance. Available in a wide range of colours the topcoat finish used on NV Buildings is a light grey to match the original façade, meaning aesthetically the iconic buildings maintained their distinctive design.

A stable conversion project needed an authentic clay roof finish.

Scotland’s Largest Single Office Building with Rooftop Running Track and 360 Panorama.A Sustainable and Futureproof Roof, Harnessing the Power of the OutdoorsBothwell Street in Glasgow is now home to an exceptionally progressive office space – making way fora new chapter in the rich history of the area. If there are any doubts about what Grade A office spacereally means, then think touchless entry, bike storerooms, lux changing facilities, an 8,000 sq. ft roofterrace, a 150-metre rooftop running track, 4 activity zones/terrace spaces and panoramic views.The project complements the sustainable regeneration programme along the Clyde Waterfront also,home to the new financial Northern European hub, firmly cementing the business district at the heart ofmodern Glasgow.GOALSThe architects at Sheppard Robson have made sure sustainability and lifecycle credentials remaincentral to the design specification. Occupants’ wellbeing has been carefully considered with a stunningpanoramic rooftop and 150m running track and general outdoor employee wellness facilities.A roofing solution was required to support the lifecycle of the building along with an excellentproduct reputation for this distinguished office space. Given the quality, longevity and environmentalconsiderations required from the roofing design, the insulation properties and warranty performancewere extremely important from the outset.CHALLENGESOur Technical department assisted the architectural and construction teams to resolve numerouscomplex design elements across the varied roof zones including running track, ballast walkways, greenzones, and pedestal zones, to determine the best roofing solution.Installation of the Davit Arm System for a building of this scale was especially important so personnel canbe safely suspended whilst working at height. This presented us with a unique challenge in providing aworkable solution that aligned with the sequence of works, whilst facilitating future routine inspection ofits base plates, and maintaining waterproof integrity without compression.Careful planning and detailing were required around roof penetrations to minimise aesthetical impact,and roof equipment was safely installed above the roof assembly.SOLUTIONThe construction comprises a composite concrete slab receiving our Hot Melt Hydrotech Waterproofing System. Offering a true lifecycle – Hydrotech high performance waterproofing, through its’ unique characteristics and installation process, now forms part of the building fabric. The result offers complete watertightness for the lifetime of the building.The building is also insulated to a high u-value target offering exceptional thermal performance and achieving a high kPa rating. This was essential to receive loadings from all components including overlying finishes, roof equipment and the end use for the building occupants.Key fire performance standards were achieved throughout including the lift overrun and lower roof terrace areas where the preferred solution was switched to our Derbigum sustainable warm roof system to maintain project performance targets.LIFECYCLE MANAGEMENTDesigned with BREEAM credentials and an EPC rating coming in at below 10 the careful focus on lifecycleconsiderations and the choice of materials throughout the building envelope is exemplary.Hydrotech hot melt is a high-performance solution containing 30% recycled content and zero productfailures in over 50 years, offering lifetime peace of mind, designed for the service life of the roof.PROJECT DATACompletion: Autumn 2022Building Type: Commercial OfficeProduct Application: Hydrotech & Derbigum waterproofing systemsCertification: BBA Approved, European Technical Approval & FM Global Class 1Architect: Sheppard RobsonMain Contractor: HFD Group

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. 

BackgroundK Systems’ retrofit of the REEMA non-traditional construction Properties in Swindon, South-West England, is a stellar example of the company’s ability to harness years of expertise with forward-thinking innovation to meet the needs of its clients.Swindon Borough Council had a development of 50+ properties in Upper Stratton all with aged facades and poor thermal qualities, some with U-values as inadequate as1.59W/m ² K.K Systems supported Swindon Borough Council, led by Projects Surveyor John Black, to completely refurbish this residential development and deliver on five primary objectives:- Improve the thermal performance rating of each home (SAP rating)- Deliver greater thermal comfort for residents- Choose a solution with acoustic benefits and non-combustable benefits- Reduce tenants’ energy consumption- Deliver an attractive aesthetic that would uplift the areaHaving a good reputation for matching systems with finishes to deliver its clients’ visions, K Systems partnered with approved installer, Rateavon Ltd, to scope out theproject and specification in fine detail, with particular focus on insulating properties and aesthetic.Our ServiceK System worked in collaboration with Swindon Borough Council and Rateavon Ltd to upgrade these poorly insulated houses and deliver a total revamp of the properties, resulting in thermally efficient homes.One of the primary requirements was to improve the performance rating of each home, with a target U-value of 0.30W/m²K. In fact, K Systems exceeded that in the project delivery by achieving a U-value of 0.29W/m²K.The project was completed with minimal disruption to existing residents, and due to forward planning and regular site visits by an experienced K Systems project manager, where processes and progress were monitored and evaluated, the project was completed within the agreed timescale.Digital technology was deployed from the very beginning to produce models and CGIs (Computer Generated Imagery) to not only assure Swindon Council the finished project would meet its specific requirements, but to also guide the design process and ensure compliance with all health and safety regulations.Regular inspections and site audits were carried out alongside Swindon Council to ensure the same level of care and attention to detail that applied when specifying theproject was being applied during its implementation and delivery.Technical Project DetailsOn initial inspection, K Systems found a problematic substrate. The REEMA hollow panel non-traditional construction properties are constructed of a concrete frame with thin concrete panels to the exterior façade. This type of thin panel construction created a significant challenge for the team to find a suitable EWI fixing, but with the help from Rawlplug, one of our EWI fixings suppliers a robust and safe fixing solution was found, without compromising the existing REEMA construction.Harnessing years of EWI system design knowledge and unrivalled expertise in this field, K Systems worked closely with Rawlplug and a structural engineer to identify a suitable fixing detail and pattern which would not only be robust but also suitable for this type of substrate.With a structurally strong solution agreed, focus then turned to the appropriate insulation solution.After a comprehensive scoping process taking into consideration client requirements, project objectives, budgets and timeframes, K Systems specified the industry proven K Systems M, Mineral Wool EWI system to not only significantly boost thermal performance of the buildings but also reduce noise pollution for the tenants.K Systems 100mm Mineral Wool insulation has an industry-leading ability to generate exceptional thermal performance. That made it the perfect choice for the refurbishment as it would combat the increased heating costs faced by residents whilst retaining the solid foundations of the existing building and reducing the risk of condensation or mould damage.Other technical benefits which made the K Systems Mineral Wool system the ideal specification for this refurbishment include:- non-combustibility, A2-s1,d0 fire rated- its excellent acoustic properties, reducing noise pollution- its environmentally friendly composition as the insulation is free from gases with ODP (ozone depletion properties) or GWP (global warming potential)- its workability and easy to cut format, reducing labour time across the board for the team.Having identified solutions that improved structure and thermal performance, K Systems then offered the best quality finish for the properties – an aesthetically pleasing, cost effective combination of VBriQ+ clay brick slips and Silkolitt+ silicone render that both Swindon Council and the residents would be proud of.VBriQ+ is a lightweight, highly durable, clay brick slip system and a more cost-effective finish option in comparison to tradition brick systems without compromising on quality, weather resistance, workability and durability. This made it perfect for a project of this scale – a project which required maximum and long-lasting impact without incurring maximum costs.The Silkolitt+ silicone render finish rejuvenated the properties’ exteriors and massively enhanced the area’s overall aesthetic, making it a much more appealing place to set up home.Yet again going the extra mile for clients to ensure unrivalled workmanship and longevity, K Systems finished all 52 properties with K Pro - a water-based protective treatment used to provide long term enhanced water repellent properties to external render and other masonry surfaces, helping combat the problems associated with water intrusion including efflorescence, frost, water-soluble pollutants and algae growth meaning the substrate will stay clean and dry for longer.K Systems and approved installer Rateavon Ltd delivered an excellently designed and expertly executed refurbishment, that exceeded the expectations and requirements of the client, Swindon Council, and the residents of the newly improved homes.John Black, Projects Surveyor at Swindon Borough Council, said:“Throughout the project K Systems have supported Swindon Borough Council agreeing all detailing to ensure current day Building Control Regulations were met. They supported resolutions throughout the project lifecycle and were really reactive, visiting site and supporting when required. They carried out weekly detailed spot check reports with photographic evidence and also checked batch numbers of materials. They delivered a great service. A really successful project.”

Sto has supplied the StoTherm Mineral K external wall insulation system with StoLotusan render for the new Day Case and Eye Unit building at Chorley and South Ribble Hospital. Specified by Gilling Dod architects of Chorley, who worked closely with the main contractor Tilbury Douglas, the StoTherm Mineral K system combines impressive insulation with excellent fire protection characteristics. With an A2-s1, d0 reaction to fire classification in accordance with BS EN 13501-1, the non-combustible mineral fibre insulation is fully bonded to the substrate and therefore no additional firebreaks are required. Ideal for both new-build and refurbishment projects, its efficient single-leaf construction also means that interior space within the building is not reduced.  For this project, the system’s mineral fibre insulation boards were secured to the lightweight steel frame and sheathing board substrate with mechanical fixings and StoLevell Uni adhesive and levelling mortar. A StoLevell Duo Plus reinforcing coat embedded with Sto-Glass Fibre Mesh was then applied to the face of the insulation boards, with StoLotusan and StoSilco renders used for the final finish on different sections of the building, using light colours from Sto’s architectural colour range.  StoLotusan is the only render available that uses Sto’s patented Lotus-Effect® technology which delivers impressive water and dirt repellence. It forms a unique surface texture, similar to that of the lotus leaf, that causes the rainwater to run off the render quickly and easily, removing any dirt or dust as it goes. Providing outstanding resistance to the growth of algae and fungus, the building will retain its looks for many years to come.  The new Day Case and Eye Unit is the result of a major £17.5 million investment in developing enhanced ophthalmology and day case services. The new Day Case and Eye Unit now offers an extensive range of diagnostic and treatment facilities for patients with medical eye conditions.

The original factory finish to the metal roof of this property was failing, with the coating delaminating badly due to UV damage. The gutterless eaves construction meant that both the roofs and cladding had to be coated. Metalseal was specified because it is available in any RAL colour., In this case, Juniper Green was required. The original finish was removed with 4000psi pressure washers , before corrosion was treated with Liquasil's corrosion primer before Metalseal 20 was applied.

BackgroundLocated in the Ancoats area of Manchester, the Albion Works strip and re-fit project was funded by the Building Safety Fund, a Government Fund to remove unsafe non-ACM cladding on residential and mixed-use properties that are 18 metres and over and do not meet building safety regulations.K Systems Approved Installer QFF Façades were contracted to complete the exterior wall insulation and rendering of the 8-storey residential building.The original 60mm EPS system was stripped from the building and replaced with a safe, thermally efficient façade solution, which upgraded the fire performance of the cladding, ensuring the safety of both the building and residents.Our ServiceK Systems provided support throughout the application process for this Building Safety Fund project. The Technical team offered on-site technical and installation support throughout the build process and supported QFF to ensure quality and reliability.We produced a bespoke specification and worked closely with Thomason Consulting and QFF Façades to agree and deliver specifics such as fire stopping and abutment details.From design advice through to installation, we offered a partnership approach which aided a smooth installation process with minimal disruption.Technical Project DetailsThe original sheathing boards were replaced, and the K Systems Exicco M drained cavity façade system was installed. This high performing drained cavity system was specified as a requirement for this steel frame residential building. 60mm mineral wool insulation was specified to retain the line of the existing façade.Fire safety with high rise buildings like Albion Works is of utmost importance and this solution generates high levels of fire resistance and non-combustibility (A2, s1-d0 rating), meaning the latest building regulations were complied with. Additionally, the thermal performance of the building improved with a U-value of 0.28 W/m²K being achieved. Residents will therefore enjoy reduced heating costs and better living conditions.For the finish, silicone thin coat render ensured that aesthetically Albion Works had a clean, crisp attractive appearance. This durable, low maintenance render transformed the outside of the building and will ensure a longlasting finish to the property.

ChallengeThe St Vincent New Bridges’ project is run by St Vincent de Paul, a homeless hostel that supports people who need to have a place to live and that require help to develop their daily living skills. When the charity acquired the Grade II listed building, a major refurbishment plan was put into action, and St Vincent de Paul approached CRASH for help with materials and construction work.SolutionKnauf Insulation donated over 520m2 of 100mm Knauf Insulation Loft Roll 40 for the project, which was installed by Giraffe Building Services Ltd. The Glass Mineral Wool insulation product is extremely easy to handle and install, being lightweight and easily cut to size, benefiting the large project.BenefitsBy its nature, Knauf Insulation Loft Roll 40 is non-combustible and classified as Euroclass A1 to BS EN ISO 13501-1, a crucial requirement to any public building. Additionally, Knauf Insulation Loft Roll 40 has been manufactured with ECOSE® Technology which delivers superior environmental performance, as the binder technology is up to 70 per cent less energy intensive than traditional binders. The technology has been developed for Knauf Insulation’s Glass and Rock Mineral Wool products, enhancing their environmental credentials without affecting the thermal, acoustic or fire performance. Insulation products made with ECOSE® Technology contain no dye or artificial colours – the colour is completely natural.

ChallengeFor the air traffic controllers at Birmingham Airport, concentration is critical to ensuring the safety of the hundreds of passenger jets that take off and land every day. Studies show office workers lose concentration when noise levels hit 55dB; however, the sound of just one medium-sized aircraft descending at 1,000ft is 70dB.SolutionWith this in mind, noise reduction was an essential factor in the specification of the insulation for the 105ft air traffic control tower. The airport’s developers consulted Knauf Insulation’s Technical Support Team for advice. The Technical Support Team recommended Rocksilk® RainScreen Slab, a non-combustible Rock Mineral Wool insulation designed for use in high-rise rainscreen façade systems.Mineral Wool insulation has superior acoustic performance because of its open structure, which traps sound between the individual strands and turns it into heat energy.Rocksilk® RainScreen Slab is quick and easy to install and adapts to minor imperfections in the substrate. Slabs are flexible and knit together eliminating air gaps for maximum acoustic and thermal performance, making it perfect for use on the curved walls of the funnel shaped control tower. The same level of acoustic performance could not have been achieved with rigid foam boards, which have closed cell structures that offer virtually no sound absorption. Rigid foam boards are also more prone to air gaps, reducing acoustic performance further.As well as excellent acoustic and thermal performance, Rocksilk® RainScreen Slab is non-combustible with Euroclass A1 reaction to fire classification. This means it will not contribute to the spread or development of fire should it occur.Another factor in the specification of Rocksilk® RainScreen Slab was sustainability. It is manufactured with 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 binder, so it is more environmentally friendly. Products made with ECOSE® Technology generate low levels of dust and VOCs, and have been awarded the Eurofins Gold Certificate for Indoor Air Comfort.Thanks to Rocksilk® RainScreen Slab the air traffic controllers at Birmingham Airport can enjoy a quieter, warmer, safer and more sustainable workplace."Acoustic protection, energy performance, fire safety and sustainability were all crucial factors taken into account during the design of the air traffic control tower and so all materials specified with the project needed to meet these multiple requirements. We are extremely pleased with the building."Will Heynes, Birmingham Airport’s Development Director

Located on the former BBC site, Circle Square in Manchester aims to create a vibrant neighbourhood comprising city living apartments, prime office, retail and leisure space. Phase two of the development saw the construction of No’s 5 to 8, four buildings totalling 677 luxury flats with private dining, resident lounge, gym and cinema, as well as commercial space. Specification requirements FK Group were appointed to design and install a bespoke façade solution which meant they were responsible for specifying the insulation. There were three main performance factors that needed to be considered.  Firstly, the insulation had to be non-combustible to ensure compliance with building regulations in England and Wales, which ban the use of combustible materials on the external walls of certain buildings over 18m tall.  The second consideration was thermal performance. “When you’re designing a bespoke façade solution, accurate thermal modelling is essential because there are so many variables that can affect its energy efficiency,” explained Ben Hufton, Associate Design Director of FK Group. “One of the reasons we work with Knauf Insulation so much is because of their technical support. They always conduct 3D U-value calculations for rainscreen façade projects, so we know the insulation will deliver the performance we need to achieve.” This enhanced level of accuracy is one of the main benefits of 3D U-value calculations over other calculation methods, because it ensures a building’s real world thermal performance matches its initial design.  To achieve the required U-value of 0.28 W/m2K, the Knauf Insulation Technical Support Team recommended 200mm Rocksilk® RainScreen Slab for the external cavity. This has a thermal conductivity of just 0.034W/mK. Rocksilk® RainScreen Slab is manufactured from Rock Mineral Wool and is BBA certified for use in high rise buildings for the broadest range of build-ups of any rainscreen solution on the market. It is also non-combustible with the best possible Euroclass A1 reaction to fire classification. This means it will not contribute to the development or spread of fire should it occur. The final specification factor was acoustic performance due to the site’s busy city centre location.  FK Group conducted offsite acoustic tests to ensure that the build-up met the requirements of Approved Document E. The Mineral Wool insulation contributes significantly to the acoustic performance of the build-up thanks to its open structure. Sound waves are trapped between the individual strands of Mineral Wool and turned into heat energy. This will help to reduce noise from surrounding roads, ensuring residents can enjoy peaceful homes. Other performance factors As it has been developed for external applications, Rocksilk® RainScreen Slab contains a water repellent additive which is combined with a fibre matrix that promotes run-off. This ensures it can resist moisture ingress whilst maintaining its excellent vapour permeability. The physical characteristics of the fibres are unaltered if they get wet. Therefore, the thermal properties of Rocksilk® RainScreen Slab are not affected by exposure to moisture and the product will perform as expected once it has dried out. The product is easy to install correctly thanks to superior robustness and durability, allowing it to be manoeuvred easily into place. Its natural flexibility means it adapts to minor imperfections in the substrate, while slabs interlock, eliminating air leakage that could reduce thermal and acoustic performance. Rocksilk® RainScreen Slab is also 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 generate low levels of dust and VOCs (volatile organic compounds) and have been awarded Eurofins Indoor Air Comfort (Gold) certification. Circle Square will give residents access to everything they need from a community district – just as Knauf Insulation’s Rocksilk® RainScreen Slab ticked all the boxes for FK Group.

As part of the £17.6 billion Crossrail project, Tottenham Court Road underground station was given a major transformation. Located in the heart of London’s West End, Tottenham Court Road was expanded with a new underground station and ticket hall and a second integrated ticket hall.Due to the huge reconstruction of the the station, it was in need of a modern, high performance and non-combustible insulation solution which wouldn’t have a visible impact on the overall design of the station. A combination of attributes that traditional insulation products struggle to deliver.

The aesthetically pleasing Victorian residences built in the 1870’s by Matthew Allen are still going strong today. TAPERED FOAMGLAS® insulation replaces the original concrete screeds, allowing the roofs to shed water. Excellent thermal performance and long-term reliability ensure that Mr. Allen’s properties will last for a long time.

A contemporary clubhouse with a spacious roof terrace providing a comfortable yet opulent place for meeting and entertaining

This is an asbestos cement roof coating and refurbishment project completed by Liquasil Approved Installers, Nadco Ltd. The roof was first cleaned and all cracks, small holes and fixings sealed with Liquasil Non-Sag Sealer, providing a permanent seal. The entire roof surface was then coated with the BBA Approved Asbestsoeal 20 asbestos roof coating system.

This case study highlights the successful implementation of Britmet’s Slate 2000 product in a housing association project. The project, carried out by Saltash Construction, encompassed a total area of 290 square meters and aimed to improve the infrastructure of the existing leaking roof. This case study examines the benefits, challenges, and outcomes of utilising Slate 2000. The housing association sector plays a vital role in providing affordable and secure housing to individuals and families. To support their mission, housing associations often undertake infrastructure improvement projects to enhance the living conditions of their residents. This case study focuses on a project to revamp a housing association's infrastructure using the lightweight metal roofing panel, Slate 2000.The Slate 2000 is a durable and aesthetically pleasing lightweight roofing material with long-term performance and weather resistance. Its stylish design and robust properties make it an ideal choice for enhancing the visual appeal and durability of residential buildings. The project involved upgrading the roofing system of a housing association's properties spanning a total area of 290 square meters. Saltash Construction, a reputable main contractor, was tasked with implementing the project. Benefits and Challenges Slate 2000's robust composition ensured long-lasting performance, reducing the need for frequent maintenance and repairs. The product's Titanium Grey colour provided a modern and visually appealing finish to the housing association's properties, significantly improving their appeal for residents and building owners. The roofing material demonstrated excellent resistance to harsh weather conditions, including heavy rain, strong winds, and extreme temperatures, thus ensuring the longevity of the roofs. The installation of the Slate 2000 required skilled labour and meticulous attention to detail due to its specific design and interlocking mechanism whilst coordinating the installation across multiple housing association properties within a specified timeframeProject Outcomes The application of Slate 2000 transformed the appearance of the housing association's existing roof, making it more visually appealing and modern. The durable properties of the Slate 2000 lightweight roofing panels significantly increased the lifespan of the roof, reducing the need for frequent maintenance and repair costs. This also improved the long-term value of the housing association, offering improved durability, weather resistance, and a refreshed aesthetic, which contributed to the overall satisfaction of the residents. Conclusion The utilization of Slate 2000 in the housing association project executed by Saltash Construction proved to be a successful choice. The product's aesthetic appeal, durability, and weather-resistance qualities enhanced the project's overall value, ultimately benefiting the housing association and its residents. This case study demonstrates the positive impact of choosing high-quality construction materials and the importance of skilled execution in infrastructure improvement projects.

The restaurant at Edinburgh's Botanic Gardens features a Douglas Fir floor finished with Bona Traffic HD. The area was sanded back to bare wood using Bona’s ‘dust free’ system so no need to ‘tent’ the adjacent mezzanine area. Traffic HD was specified to provide the required level of durability in such a busy area. It's a very low VOC formulation which protects wood floors in highly trafficked areas. Its fast development time means busy commercial floors can be put back into full use just 24 hours after application.

Powdertech Wood Finish (Roughwood R047) is being used for a prestigious sustainable logistics development in Milton Keynes, built by Glencar Construction for client Baytree Logistics, a pan-European company. BREEAM has specified the development scheme as “Excellent”. It is also “WELL” ready – the WELL Building Standard is the world’s first building standard focused exclusively on sustainability, human health and wellbeing. The building, on a 10.4-acre site at Fenny Lock, will feature the latest in technology-enabled sustainable design features providing an environment beneficial to the health and wellbeing of the building users. Wherever possible, “Cradle to Cradle” (circular economy) principles have been adopted meaning that materials used can be repurposed in the future, being returned into the construction cycle for re-manufacture with no detriment to quality.The Benefits of Powdertech Wood FinishWood Finish on aluminium fits this approach perfectly. Aluminium itself is endlessly recyclable and our powder coatings do not affect the process. The finish can be removed, and the metal returned to its original bare state. Powder coatings are also free of VOCs, halogens and heavy metals – all compounds which are damaging to health. We are very pleased that the sustainability of Wood Finish on aluminium, and the ‘clean’ qualities of the product have been recognised as such. It is also the case that the use of Wood Finish on external features is in harmony with the aesthetics of the building design.Wellbeing for people and planetRoof garden terraces, and onsite water attenuation form part of a sustainable drainage system which includes harvesting of rainwater for re-use on site. Wood Finish in Roughwood shade R047 has been used to coat eleven enormous aluminium drainpipes which form part of this scheme; they stand 13m high with a 600mm x 600mm top section tapering to 150mm square at the ground. The scheme also includes outdoor gyms and training areas, edible vegetation and reclaimed timber seating. Internally, sensors constantly monitor air and water quality.Baytree intend that this should be one of the most sustainable logistics developments ever built in the UK and we are very excited to be a part of this ambition.

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. 

City of Edinburgh Council required a new roof for one of its local authority primary schools, Parsons Green. Built in 1961, the school had a copper pitched roof which was in need of replacement, and an upgrade to the insulation of the building was also required. The council also required a 20 year single point insurance-backed guarantee and a reputable installing roof contractor.

Building performance is crucial if the UK is to meet its ambitious net zero targets. But there’s a big challenge ahead. There are 29 million homes in the UK and buildings generate one third of the UK’s CO2 emissions, 50% of which relate to heating.To address this, the government has announced a clear regulatory roadmap introducing ever-stricter thermal performance requirements.But there’s a bigger issue that tougher thermal performance measures alone will not address. Industry research suggests 27 million homes are not delivering the performance stated on their Energy Performance Certificate (EPC). That’s because EPCs require no physical measurement on site, assumptions are made based on answers to questions such as whether a property has insulation or a condensing boiler. It does not account for any of the variables that influence actual performance, such as build and install quality or location. This means homes are less energy-efficient, use more carbon and are more expensive to run than their EPC suggests. As a result, the Government’s EPC Action Plan will see EPCs shift from being a notional tick-box exercise to a genuine, evidence-based record of a building’s actual performance.That leaves the construction industry with a problem. How will it ensure buildings actually perform as designed?A genuine, evidence-based recordThe only way to address the issue is to measure real energy performance, but this has been difficult and costly – until now. Knauf Insulation and Knauf Energy Solutions have undertaken two pilot projects which have combined accurate measurement and Artificial Intelligence (AI) technology with a quality-controlled retrofit of Mineral Wool insulation to deliver impressive results.The solutionThe two companies have invested in six years of research and development. The result is ground-breaking sensor technology that accurately measures the real energy performance of a home, which is used alongside quality-assured installation of retrofit measures to create buildings that perform as intended.Until now real performance could only be measured via expensive, lengthy, and invasive co-heating tests. By contrast, Knauf Energy Solutions sensors can be fitted unobtrusively to occupied buildings, making the technology discreet, scalable, and cost-efficient.Over 12 weeks, the sensors capture an accurate picture of the building’s performance using machine learning to combine energy meter readings with humidity, temperature, CO2 levels, Volatile Organic Compounds (VOCs), and weather data. It then calculates the heat lost through the building roof, walls, and floors to create an accurate picture of each home’s thermal performance. It essentially gives an ‘mpg’ for a home or building.The sensors can be used to ensure new buildings are performing as designed and specified. Or they can inform ‘smart retrofits’ that improve existing buildings’ energy performance and track the subsequent energy bill savings.Retrofits that deliver resultsKnauf Insulation and Knauf Energy Solutions have undertaken the UK’s largest ever real performance retrofit project, to upgrade the thermal performance of 28 homes on a 1970s social housing estate run by Great Places Housing Group in Trafford, Manchester. Early investigation showed the existing insulation had been incorrectly installed and had degraded. Adding to the complexity, the homes also contained unusual build features, such as a stagger between terraces meaning one wall acted as both a party and external wall, each with different thermal characteristics. The companies built a full-scale mock-up of the junction to develop clear protocols for the removal of existing insulation and installation of Knauf Insulation Mineral Wool products. This innovation has enabled the successful installation of Supafil® Party Wall in a staggered party wall – a world first which can be replicated in tens of thousands of other ‘hard to treat’ properties with similar staggers across the country.The second project took place in Eccles, Salford, where the 12 houses had been built to Part L1A in 2014.Sensors were used to benchmark the thermal performance of the properties before commencing quality-controlled refurbishment programmes on both estates, using Knauf Insulation products including Supafil® 34, Supafil® Party Wall, Loft Roll 40 and Rocksilk® RS100.The retrofits were ‘cost-optimal’ delivering results usually targeted by whole-house retrofits with only fabric improvements. To achieve this, the standard of installation was key. Contractors were chosen and managed for quality, and included approved Supafil® contractors, who are certified and actively monitored by Knauf Insulation. Supafil® 34 was injected directly into the cavity using a calibrated blowing machine, ensuring each cavity was fully filled so the specified thermal performance could be achieved. Loft installations were carefully designed and installed so the Loft Roll 40 met up with the Supafil® to provide continuity of insulation and minimise thermal bridging.The two pilot projects delivered impressive results.Trafford31% average fabric efficiency improvement per homeOne home experienced a 51% improvement£411 average annual bill reduction for residentsAverage space heat demand: 65.57 kWh/m2yearAverage CO2g/m2/year: 14.23Eccles17% average fabric efficiency improvement per home28% improvement in one semi-detached homeMoist air leakage risks corrected, preventing sustained structural deteriorationAverage space heat demand: 32.79 kWh/m2yearAverage CO2g/m2/year: 6.78The need for a fabric first approachAccurate measurement alone will not create net zero homes – despite the improvements, all 28 homes in Trafford retained EPC ratings of grade D or E. Similarly in Eccles, the EPC ratings remained mostly static. The refurbishments simply brought their real-world performance in line with the theoretical EPC performance.But the project does show that Knauf Insulation and Knauf Energy Solutions have developed a viable solution for measuring real performance that can be used to underpin net-zero housebuilding and retrofitting by taking a fabric first approach.Bringing benefits to the whole supply chainBefore the refurbishment, residents on the Trafford estate regularly complained their homes were cold and expensive to heat, despite being insulated. In fact, a survey by energy supplier E.ON found this is common, with 49% of landlords saying they didn’t know how to improve the energy efficiency of their properties. This new technology not only gives landlords that information, but by making real-world measurement viable at scale for the first time, it brings benefits to the whole supply chain:Housebuilders can ensure quality control and compliance with the ‘fuel and energy performance’ aspects of the New Homes Ombudsman scheme.Builders and developers can measure thermal performance with certainty and demonstrate they’re delivering for their clients.Tenants and purchasers will enjoy better thermal performance, lower energy bills and a more comfortable living environment, and they can also assess the operating costs of prospective homes.The government, councils, housing associations and landlords can verify the return on investment on refurbishments.Ultimately if we are to achieve net-zero, we must first accurately measure building performance. By combining the use of sensor technology with a quality-controlled insulation installation or retrofit, we can close the performance gap of every building – new and existing. The building fabric component of an EPC will be based on real evidence and homeowners and tenants can save money with lower energy bills.Low carbon insulation for low carbon homesKnauf Insulation undertakes Life Cycle Assessments to evaluate the embodied carbon of its products. Its products can be considered low in embodied carbon, with transparent evidence available in Environmental Product Declarations (EPDs) across its ranges.Knauf Insulation has proactively reduced the embodied carbon in its products over the years, as part of a broader set of activities to reduce its environmental impact. Specific actions to minimise its carbon footprint include the introduction of ECOSE® Technology, its unique bio-based binder, which is 70% less energy-intensive to manufacture than traditional binders, as well as initiatives to reduce road miles in both sourcing and distribution. Its Glass Mineral Wool products are manufactured using up to 80% recycled glass collected from the local communities around its factories, and the finished products are compressed by up to 10:1 to fit more product into each lorry reducing transport emissions.“From day one, Knauf Insulation brought a level of quality control we haven’t previouslyexperienced in other projects. The measurement service is the first time wehave been offered any certainty that our homes have actually been improved.”Sarah McClelland, Environmental Manager, Great Places

The Green Roofs Consultancy report looked to the provision of Green Bio diverse roof to address the need to encourage additional species. The ABG Green Bio diverse Roof System includes a mixture of plug planted sedum, cuttings and seeded annual and perennial wildflowers. ABG Roofdrain was used as a reservoir and drainage base layer to optimise water retention and prevent ponding. Special provisions were made to create hibernicula for local endangered species. The roof will benefit the building by providing additional insulation and reducing noise pollution.The roofs substrate filters out dust and pollutants helping improve the environment nearby

Gulson Road is a new state of the art student accommodation block in the heart of Coventry’s university district. With 462 rooms, shared study areas, a common room, gym and staff management suite all set over eight storeys, fire safety was of the utmost importance.With this in mind, the architect, Stride Treglown, specified that Rock Mineral Wool should be used to insulate the rainscreen façade to comply with building regulations, which ban the use of combustible materials on all buildings over 18m tall.Knauf Insulation’s Technical Support Team undertook 3D U-value calculations on behalf of main contractors Robertson Construction and recommended 150mm Rocksilk® RainScreen Slab to achieve a U-value of 0.18W/m2K.Rocksilk® RainScreen Slab has a thermal conductivity of just 0.034W/mK. It is non-combustible with the best possible Euroclass A1 Reaction to Fire Classification rating, so will not contribute to the development or spread of fire should it occur. It is BBA certified for use in high rise buildings and the broadest range of build-ups of any rainscreen solution on the market.As well as exceptional thermal performance and fire safety, Rocksilk® RainScreen Slab provides high levels of sound absorption.Rocksilk® RainScreen Slab is easy to install correctly. The slabs interlock and adapt to minor imperfections in the substrate eliminating air leakage, which can reduce thermal and acoustic performance. It is also robust and durable with a water repellent additive to preserve its integrity while exposed during construction.Rocksilk® RainScreen Slab 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 binders, so it is more environmentally-friendly.Products made with ECOSE® Technology generate low levels of dust and VOCs (volatile organic compounds) and have been awarded the Eurofins (Gold) certificate for Indoor Air Comfort.Thanks to the enhanced thermal and acoustic performance from Knauf Insulation’s Rocksilk® RainScreen Slab, students at Gulson Road will enjoy warm, quiet, safe and sustainable flats to study, socialise and sleep in.

London GRP Roofing Ltd, specialists in fibreglass flat roofs and terraces, recently completed a Degaflex roofing installation using our high-performance system and gave their professional opinion.Stephen Knuckey, the Director of London GRP Roofing Ltd. posted on LinkedIn photos of their project along with a comment of ‘our "Degaflex overlay. Safe to say I am extremely pleased with the finish on this. Being a felt overlay and turning out this smooth, I’ll be looking forward to applying it directly to an OSB deck.’

The Oak Cancer Centre at The Royal Marsden’s Sutton site is a state-of-the-art research and treatment facility, designed to bring the hospital’s 400-strong research team and its clinical care facility together under one roof. Specialist brickwork contractors, Lesterose Builders, were appointed by main contractor ISG to design and build the 2,800m2 masonry façade. As a result, they were responsible for ensuring the façade complied with the relevant thermal and fire safety regulations. The time and cost challenge The architect’s specification named a rock mineral wool product, but when Sam O’Keefe, Commercial Manager at Lesterose Builders, tried to place the order, there were two problems. He explained: “The first issue was availability – there was an eight to ten week lead time due to materials shortages. And the second issue was cost. We discovered the original insulation manufacturer had two planned price increases, and the extended lead time and phased delivery schedule meant that the Oak Cancer Centre project would be hit by both.” These two issues would not only delay the build, but would push it significantly over budget. So Lesterose Builders needed another insulation solution. Meeting the specification Lesterose Builders turned to Knauf Insulation, a fellow member of the Association of Brickwork Contractors (ABC). Knauf Insulation’s sales team looked at the specification and was able to offer an equivalent – 200mm Rocksilk® RainScreen Slab.  Rocksilk® RainScreen Slab is a rock mineral wool insulation product with a thermal conductivity of just 0.034W/mK, which meant it would meet the U-value of 0.21W/m2K. It is also non-combustible with Euroclass A1 reaction to fire classification, which means it will not contribute to the development or spread of fire should it occur. It is British Board of Agrément (BBA) certified for masonry façades at any height as well as for the broadest range of build-ups of any rainscreen solution on the market. This meant Rocksilk® RainScreen Slab was suitable for use in the Oak Cancer Centre because it complies with building regulations that ban the use of combustible materials in the walls of relevant buildings over 18m tall. In addition to fire safety and thermal performance, Rocksilk® RainScreen Slab offers excellent sound reduction characteristics. Crucially, Knauf Insulation was able to meet both the schedule and cost parameters for the project. “Once we had confirmation that Knauf Insulation could match the specification and deliver to the planned timescales and budget, it was then a case of getting the architect’s approval. This went extremely smoothly. We just made a technical submittal with the datasheets and environmental product declaration (EPD) and Rocksilk® RainScreen Slab was approved for use without any queries.” Ease of installation The seven-full loads of insulation were purchased through Parker Building Supplies. These were delivered to the site in eight phases in line with the schedule of works. The product is designed to be easy to install correctly. Superior robustness and durability mean it can be manoeuvred easily into place. And unlike some competitor products, it can be installed with either face of the slab against the substrate, speeding up installation and preventing incorrect installation. Furthermore, the natural flexibility of rock mineral wool means it adapts to minor imperfections in the substrate, while slabs knit together when tightly butted, eliminating air leakage that could reduce thermal and acoustic performance. Rocksilk® RainScreen Slab is also 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 binders, so it is more environmentally friendly. 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. Construction work is known for its challenges, particularly around budgets and schedules – but thanks to Knauf Insulation’s Rocksilk® RainScreen Slab, Lesterose Builders was able to overcome both these issues and meet the required specification factors for the Oak Cancer Centre. 

Knauf Insulation has been appointed as Bellway Homes’ insulation partner for an innovative project to measure the impact of low and zero carbon (LZC) technologies on energy consumption. Bellway’s experimental house ‘The Future Home’ has been constructed within Energy House 2.0, a controlled environmental chamber located at The University of Salford. Energy House 2.0 is the largest research facility of its type, with two chambers able to accommodate two detached houses each. The controlled environment can recreate a wide variety of weather conditions, with temperatures ranging from -20˚C to +40˚C, as well as simulated wind, rain, snow, and solar radiation. This allows housebuilders to monitor the performance of different builds and LZC technologies through year-round conditions, in just a matter of weeks, aiding the transition to net zero design. We spoke to Jamie Bursnell, Technical and Innovation Manager for Bellway Homes, about the aims of their forward-thinking project: “We want to identify the sweet spot where fabric is optimised alongside space heating and energy-efficient services, like solar photovoltaics and battery storage. Finding the best combination of these elements will allow us to design homes that are energy efficient and economically sustainable, both for developers and homeowners.” The Future Home Bellway’s ‘Future Home’ is a three-bedroom timber frame house, built to the current Part L 2021 (England) standard. A specification upgrade is scheduled to take place mid-way through the trial, increasing the build’s energy efficiency to an indicative 2025 Future Homes Standard. “Ultimately, our aim is to optimise the U-values of the home” Jamie explained, “but that needs to be based on real, in-use data, not just notional designs. With the home up and running, we’re now measuring its in-use energy performance against our design. After the mid-trial upgrade, we’ll measure again to see the impact on the build’s overall energy efficiency.”  Bellway is using sensors within the home to monitor its performance under a range of environmental conditions. To do this effectively, Bellway needed a reliable, high-performing fabric, capable of meeting both current and future building standards. Optimal results They turned to Knauf Insulation, who provided product advice, design input and U-value calculations to determine the best insulation for the job. For the initial build, Loft Roll 44 glass mineral wool insulation has been installed in the loft. FrameTherm® Roll 35 has also been installed to meet U-values of 0.18 W/m2K in the external walls. During the mid-way trial, upgrades will be made to the insulation, to reduce the external wall U-value and help reduce air movement within the cavity, which can negatively affect thermal performance.  Jamie noted, “Knauf Insulation has provided technical assistance to a very high standard and their U-value and Psi-value calculations are always reliable. We chose products from their Loft Roll and FrameTherm® ranges because they combine quality performance with cost-efficiency, both of which are essential to the success of our project.” Energy House 2.0 and The Future Home allow us to see how LZC technologies could be most effectively implemented in future years. But the insulation requirement will remain unchanged; reliable thermal performance will continue to be an essential component of any energy-saving home and it’s already available today, with the right specification. Learn more about Part L and the housebuilding sector, at our Housebuilders Hub

The National College for High Speed Rail contains a variety of learning spaces inside a visually striking yet simple building shell formed from two intersecting blocks. The main entrance is defined by a simple yet striking cantilevered upper floor, providing a sheltered space in front of the building. To insulate this, Kingspan Kooltherm K110 Soffit Board was used. The boards were fixed directly to the soffits using thermally broken fasteners, making installation quick and simple. Kingspan Kooltherm K110 Soffit Board is a premium performance insulation board. It achieves a thermal conductivity of 0.018 W/m·K across all thicknesses.