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ISSUE 3 | SPRING 2021

LIGHT STEEL FRAMING MAGAZINE THE L ATEST IN LIGHT STEEL FR AMING TECHNOLOGY DEVELOPMENT

DESIGN LED SCHEME REQUIRING AN EXCELLENT LSF SOLUTION

LIGHT STEEL FRAMING MAGAZINE

P20 LSF KEEPING THE ENGINE YARD ON TRACK A new development described as one of the most exciting places to live in Edinburgh

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NEW SPECIFICATION & ENGINEERING GUIDE

FOCUS ON FRAMING ROUNDTABLE EVENT

Streamlining the construction process to save a vast amount of time and money

Challenging questions generated a frank and forthright debate

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F IR E SA F E T Y FOR STEEL F R A ME SYS T E MS SIDERISE is a market leader in the design and development of specialist passive fire protection solutions for the construction, façades and interiors sectors suitable for use with Steel Frame Systems. We have developed a wide range of firestopping products and systems that meet the requirements of current national building regulations for applications including ceilings and floor and wall compartmentation – with at least an equal fire performance rating to that of our Cavity Barrier or Fire Stop. Our fire safe insulation products provide the following benefits: • Proven in use with market-leading fire performance • Unique construction provides unrivalled movement performance • Third-party ‘Certifire’ approvals • Expert Technical support • Simple and quick to install with comprehensive training available.

Find out more about Siderise and our products at www.siderise.com We’re proud to be new members of the LSFA


WELCOME

PUBLISHING

Welcome to the latest issue of Light Steel Framing Magazine providing some news and views from the industry and published in partnership with the Light Steel Frame Association (LSFA) – an organisation set up to support the overall objectives and growth of the sector.

FRONT COVER: Ayrshire Metals – Sandgate Pavilions PRINTED ON: PEFC 16-33-576 paper stock by Buxton Press

PUBLISHER: Light Steel Framing Magazine is produced in partnership with the Light Steel Frame Association and published by Radar Communications: ©Radar Communications Ltd. Radar Communications Ltd, 101 Longden Road, Shrewsbury, Shropshire, SY3 9PS T: 01743 290001 www.radar-communications.co.uk SUBSCRIBE TO RECEIVE: www.lightsteelframingmagazine.co.uk ADVERTISING ENQUIRIES PLEASE CONTACT: Julie Williams // T: 01743 290001 E: julie.williams@radar-communications.co.uk SEND US YOUR NEWS: T: 01743 290001 E: info@lsf-association.co.uk FOR ENQUIRIES PLEASE CONTACT: E: info@lsf-association.co.uk DISCLAIMER: The content of Light Steel Framing Magazine does not necessarily reflect the views of the editor or publishers and are the views of its contributors and advertisers. The digital edition may include hyperlinks to third-party content, advertising, or websites, provided for the sake of convenience and interest. The publishers accept no legal responsibility for loss arising from information in this publication and do not endorse any advertising or products available from external sources. No part of this publication may be reproduced or stored in a retrieval system without the written consent of the publishers. All rights reserved.

As we went to press with our last issue in October 2020, optimism was in short supply. But now as the vaccine programme rollout continues at an unprecedented pace and lockdown restriction start to ease – there appears to be a real air of confidence around the construction community. Despite all the challenges, the light steel sector is in good shape. The pandemic has increased the transition from outmoded site approaches to advanced methods which benefit from having fewer people on site. But many are now realising that taking the construction process into well-managed factory environments where social distancing and hygiene measures are easier to implement – is just one of a host of benefits. So, the unintended consequence of recent events, is to create a climate for rapid change. But it is clear there are more forces at play – with the government-led drive towards modern methods of construction being one and the Brexit-driven fear of a skills exodus, another. One of the main factors of course is building safety and the introduction of new fire regulations – which has played to the strengths of the light steel frame sector. In this issue we delve deep into building safety with Mark Lawson and Andrew Way of the Steel Construction Institute (SCI) introducing their new guidance on the fire resistance of light steel framing. Another dominant feature is the Focus on Framing event – this offers our readers the opportunity to learn the views of main contractors, architects, engineers who are in ‘frank and forthright’ discussions with expert commentators and manufacturers from the light steel framing arena. Some thought-provoking facts emerged surrounding the circular economy – for example did you know that in the UK we are largely self-sufficient in steel, we can pretty well produce all the steel we need through recycling our latent stock to satisfy market demand? When we gather a group of construction industry professionals together and pose some challenging questions – we cannot predict the outcome and quite a few revelations come to the fore. We are interested in your light steel framing news, so if you have a pioneering project you would like to showcase, an innovation that is set to advance the industry or you have just won a ground-breaking contract – then we would like to hear from you.

Mike Fairey Chairman - Light Steel Frame Association Director - Fusion Building Systems info@lsf-association.co.uk

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In this issue...

CONTENTS

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Design Led Scheme Showcasing an Outstanding LSF Solution

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Industry News

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LSFA Launch Specification & Engineering Guide for Light Steel Frame

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Focus on Framing Roundtable Event

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Adding Longevity to the Sustainability Debate

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Making a Compelling Case for Light Steel Frame

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Fire Resistance of Light Steel Framing

Profiling Sandgate Pavilions an exclusive £10 million residential development featuring 36 high-end contemporary apartments across three medium-rise units set within beautiful surroundings.

Highlighting the latest construction industry initiatives, project developments and building technology innovations in the UK light steel framing sector.

Freely available to download, this guide outlines design opportunities, fire safety, performance in construction and in use together with the different types of systems, applications, and interfaces.

When we gather a group of construction professionals together and pose some challenging questions, we cannot predict the outcome, but it makes for an interesting read.

Steve Thompson from steel framing specialists EOS emphasises that structures should be inherently safe and that sustainability measures should not compromise this essential requirement.

Summarising the spectrum of benefits light steel frame brings to the construction industry from delivering predictability of costs and programme to reducing risk and enhancing building safety.

Mark Lawson and Andrew Way of the Steel Construction Institute discuss issues relating to fire resistance of buildings and introduce new guidance on the fire resistance of light steel framing.

Driving growth and supporting the objectives of the light steel frame industry

JOIN US TODAY!

www.lsf-association.co.uk LIGHTSTEELFRAMINGMAGAZINE.CO.UK

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COVER STORY AYRSHIRE METALS

SETTING THE STANDARD FOR COMPLETE CUSTOMER SATISFACTION

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WITH 100 YEARS OF EXPERIENCE, THE AYRSHIRE GROUP CAN TRACE ITS ROOTS BACK TO 1819, WHEN IT WAS A BUILDER OF SHIPS. DURING THE 1930'S THE COMPANY DIVERSIFIED INTO THE COLD ROLL FORMING OF STEEL SECTIONS AND THIS MODERN METHOD OF PRODUCING LIGHTWEIGHT BUT STRONG PROFILES BREATHED NEW LIFE INTO THE COMPANY.

With its head office located in Daventry, Ayrshire Metals is one of the UK’s leading suppliers of cold rolled sections to a diverse range of markets and industries. The company's mission to provide 'complete customer satisfaction' is underpinned by ISO9001 accreditation standards.

team from concept to completion and provide a high specification system to reflect this prestigious project. With over 100 years' experience and outstanding reputation, Ayrshire Metals were appointed to design, engineer and supply 70T of light steel frame panels as well as the loadbearing structure for the top floor of all three apartment blocks.

Design Led Scheme Requiring an Excellent LSF Solution Sandgate Pavilions is an exclusive £10 million residential development in Kent, featuring 36 high-end contemporary apartments across three medium-rise units set within beautiful surroundings, overlooking the English Channel.

Ayrshire carried out initial design and feasibility studies and design calculations, utilising their in-house engineers and CAD team. The steel was then manufactured at their advanced manufacturing facility in Daventry, Northamptonshire.

Private contractor Sunningdale Developments were keen to engage a light steel frame manufacturer who would work collaboratively with their

Collaborative Approach Ayrshire's specification team attended project meetings from design through to install stages, ensuring

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continuity, consistent customer service and smooth project delivery. This collaborative approach ultimately helped to reduce lead times and cost for the client resulting in a successful partnership. Ayrshire Metals recommended West Drylining and Facades to undertake the installation of the steel framing system and drylining package for Sandgate Pavilions, which they successfully secured. A family-orientated business with traditional values and an excellent reputation, West Drylining and Facades is a youthful, driven company which has many clients within the top 10 UK contractors.


COVER STORY AYRSHIRE METALS

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02 Achieving quality products and finishes at competitive rates, despite the size or complexity of the project, the West Drylining team ensured all the exacting project requirements were fulfilled. Installing the extensive light steel frame solution complete with an internal drylining system, external weather tight facade, rainscreen cladding, curtain walling and window solutions.

Sustainable Solution Time was spent upfront collaborating with Sunningdale Developments to value engineer the complete structural system. Through efficient design and engineering, Ayrshire were able to reduce the amount of hot rolled steel and concrete required and engineer bespoke jambs to negate the requirement for hot rolled wind posts.

Technical Challenges The project encompassed light steel frame external infill panels to all three blocks and a loadbearing structure for the top floors. Some technical challenges surfaced including the design and installation of interfaces between cold rolled steel, brise soleil and loadbearing structure together with the design and build of cold rolled steel brise soleil feature to all three loadbearing structures.

To reduce onsite waste the metal studs and boards were cut to size offsite where offcuts can be recycled. Sustainably efficient products were specified throughout the development such as eco-friendly insulation to deliver higher levels of thermal insulation, reducing in-use carbon emissions throughout the lifecycle of the building. Going above and beyond requirements, non-combustible sheathing board was supplied and installed to enhance building safety and performance.

West Drylining worked closely with the Ayrshire team to develop the details and drawings to deliver the project and efficiently deal with the challenges – expertly engineering the framework to reduce the requirement for the original design of hot rolled beams and columns by utilising composite members of steel frame sections and modifying the design.

A local fixings company, site labour and manager were engaged to reduce carbon emissions generated through travel and transportation and training was provided where necessary.

04 Successful Outcome Sandgate Pavilions has been meticulously designed, with highend specifications creating modern, luxurious and spacious new build apartments. Ayrshire Metals in close collaboration with Sunningdale Developments and West Drylining and Facades, completed the project recently to the complete satisfaction of the client. Celebrating exceptional design, Sandgate Pavilions reached the finals of the British Homes Awards in the Apartment Development of the Year category.

For more information visit: www.ayrshire.co.uk or email: sales@ayrshire.co.uk www.westltd.net or email: info@westltd.net

IMAGES 01-04. Sandgate Pavilions, an exclusive £10 million residential development featuring 36 contemporary apartments.

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INDUSTRY NEWS

KIER PUTS OFFSITE TECHNOLOGIES ON THE MAP

Embracing offsite manufacture and Modern Methods of Construction (MMC) is fast becoming a strategic priority for many businesses. To showcase the diverse range of offsite manufacturers across the UK and beyond, Kier has partnered with the Supply Chain Sustainability School to develop a database specifically for MMC manufacturers. Through Kier’s behavioural change initiative, The Choice Factory, the company is looking for new ways in which to make offsite manufacture more accessible for colleagues, clients and supply chains. As a team, Kier are often asked which manufacturers to approach when considering adopting a specific offsite methodology for a new scheme, so they wanted to come up with a dynamic way of communicating this information, as well as making it open and accessible in order to benefit the wider industry. As the largest regional builder in the UK, Kier is ideally placed to leverage the data held within the business to kick-start the development of an MMC Database. Recognising that MMC has a crucial part to play in any sustainability strategy, Kier saw that they could also use the platform to make it easier for project teams to consider more holistic criteria than simply cost when selecting supply chain partners. By combining their extensive knowledge of the offsite supply chain with data held by the Supply Chain Sustainability School, the Kier Choice Factory team were able to develop an initial picture of the offsite market, which is now evolving quickly as new manufacturers register on the database.

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The resulting interactive map is fully searchable, and colour-coded to reflect the full spectrum of MMC technologies available, making it quick and easy to find a manufacturer’s details for a project via the geographical location of their factories. Project teams can locate offsite manufacturing facilities near to a specific construction site or select suppliers in areas that could most benefit from economic uplift, consciously bringing sustainable employment to these communities by selecting a manufacturer in that location. It is also possible to see whether manufacturers are BES 6001 certified (responsible sourcing of construction products), whether they have waste take-back strategies in place, or whether or not they are registered with the Supply Chain Sustainability School, bringing responsible procurement to the forefront of initial selection criteria. “It is really important for clients and professional designers to understand the capabilities of the offsite construction supply chain. This interactive map allows offsite manufacturers to have visibility of who does what in the supply chain and to start the process of building those really important collaborations.” Ian Heptonstall, Director, Supply Chain Sustainability School

LIGHT STEEL FRAME ON SHOW AT OFFSITE EXPO

Plans are now well underway for the next Offsite Expo taking place on 21 - 22 September at the Ricoh Arena, Coventry. The event will be the only one of its kind taking place this year and will include informative speaker content and an exhibition of offsite technology but new for 2021 – there will be ‘live’ feature builds, the Offsite Awards winners ceremony and technical guided tours hosted by Cogent Consulting. The strategy for the next Offsite Expo will be simple but effective – event organisers will focus their efforts on compiling the most compelling content. Demand is ramping up for innovative offsite solutions and industry intelligence demonstrates that construction professionals are looking for cutting-edge content. Offsite Connect The greatest success of the inaugural event for many was the Offsite Connect Buyers and Specifiers Forum – over 330 business meetings took place between exhibitors and over 100 high profile construction professionals with a buying or specifying remit.

Explore the MMC database here: www.kier.co.uk/mmc-database/

Get Involved With the majority of exhibitors rebooking for the 2021 event, construction businesses are advised not to leave it too late to book promotional packages to ensure they maximise this highly targeted business opportunity.

Over 150 manufacturing facilities have been registered on the new MMC Database so far.

For more information go to: www.offsite-expo.co.uk

Light steel frame suppliers can add their factory locations here:

For exhibitor or sponsor opportunities email:

www.kier.co.uk/mmc-database/mmc-manufacturers-form/

LIGHTSTEELFRAMINGMAGAZINE.CO.UK

julie.williams@radar-communications.co.uk


INDUSTRY NEWS

CONSTRUCTION PLAYBOOK SETS OUT KEY POLICIES AND GUIDANCE

Public projects should be built using standardised components and assemblies, new procurement guidance states. The Cabinet Office’s Construction Playbook sets out key policies and guidance for how public projects and programmes are assessed, procured and delivered. The result of extensive collaboration from across the public and private sectors, the document brings together expertise and best practices. The report’s authors point out the benefits Modern Methods of Construction (MMC) can provide in embedding digital technologies into the construction process. If policymakers are serious about tackling long-running, structural issues in housebuilding – such as high carbon emissions and quality issues – then encouraging companies to capture more data-led evidence will be crucial. Ann Bentley, Rider Levett Bucknall’s Global Board Director, who has been integral to the Construction Playbook Industry Forum, said: “It will provide us with a template to measure and test quality and value, ensure safety and relevance, minimise the environmental impact and maximise the positive social impact of our construction projects.” One of the key measures outlined is the encouragement of standardised design to ‘harmonise and rationalise’ builds by looking to procure

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construction projects based on product platforms comprising of standardised and interoperable components and assemblies. Different governmental departments have been asked to collaborate to see what platform solutions can be used across different bodies in order to increase the use of such design in building projects. Future procurements and frameworks should support this with the development of a market and supply chain that can develop and deliver designs based on these platform approaches, manufacture and supply components. The Playbook also outlines the key role the construction sector will play in both the UK’s recovery from the coronavirus pandemic and work to bring greenhouse gas emissions down to net zero by 2050. Green initiatives in the Playbook include promoting the use of carbon assessments to understand and minimise the greenhouse emissions of projects. Other specific measures include: • Providing greater certainty to industry through long term plans for key programmes. This will include longer term contracting across a range of areas which will give industry the certainty required to invest in new technologies, delivering improved productivity and efficiency savings • Incentivising industry to innovate by focusing on the output of what we want a project to achieve, rather than micromanaging how it is done

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• Modernising construction by standardising designs and parts, as well as embedding digital technologies including the UK Building Information Management Framework • Greater focus on building positive relationships with robust contract management between project leads and industry • Investing more in training and apprenticeships, driving forward innovation in construction, boost productivity and focus on value for money in public sector developments By adopting a more manufacturing-led approach to public works projects and programmes will improve productivity and deliver better value for money. By standardising elements of design and, where appropriate, use longer-term contracts across portfolios, will give industry the certainty required and make it commercially viable for suppliers to invest in innovative new offsite technologies – increasing the speed of delivery. Download the Construction Playbook here: https://www.gov.uk/government/ publications/the-construction-playbook


INDUSTRY NEWS

CONTRACTOR APPOINTED TO £7.5M RESIDENTIAL SCHEME Construction company mac-group has been appointed to build a new £7.5m residential development in Birmingham’s Jewellery Quarter. The Photographic Works on Camden Street will be built on the site of a former photo processing building, which Solihull-based mac-group has also been contracted to demolish. In its place will be a four-storey development, designed by BPN Architects on behalf of property development company Hatchbury. The scheme will comprise 43, one-bedroom and two-bedroom apartments and five two-storey duplex apartments/townhouses. There are external terrace gardens to the rear of the development over a steel transfer structure, under which is car parking for 27 vehicles and ancillary storage facilities. All of the homes will be available for private sale. Ray O’Sullivan, director of the mac-group, said: "This is a much-needed residential scheme in an historic area of Birmingham and we’re pleased to have been appointed to deliver it for Hatchbury.

SIGMAT STRENGTHEN TECHNICAL TEAM

"We’ll be working closely with the developer to build a high-quality development that reflects the area’s history and sits neatly in its surroundings. We’re looking forward to bringing it to life." The building will be constructed using a steel frame to the podium, with a lightweight steel frame above. External facade features will include detailed bespoke brickwork that are designed to reflect the style of film strips, which fade as they rise towards the light, and feature precast banding elements, plus Crittall-style windows and sloping Patent glazing to the third

Leeds based light steel frame market specialists Sigmat, have announced the appointment of two new directors to further strengthen their leadership team – sustainability and innovation experts Nick Milestone and Tim Doubell. Nick Milestone joins the team as Engineering Director, whilst structural engineering specialist Tim Doubell will take up the newly created post of R&D Director. Both Nick and Tim join the team with a wealth of experience across a variety of offsite disciplines and have worked across a multitude of industry sectors, including landmark projects for Blue Chip clients across the globe. With a strong focus on fast-tracking innovation within the industry, the duo will be heavily focused on reducing carbon construction techniques as they continue to build on Sigmat’s already impressive green credentials. Engineering Director Nick Milestone said: ‘I am absolutely thrilled to be joining such a passionate and progressive team. Sigmat has both the resource and expertise to really push the green agenda and I am delighted to be part of this exciting journey.’

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floor. Bespoke interior design elements will feature photographic themes of light and dark, and exposure and enlargement. PMP Consultants has been appointed as project manager and quantity surveyor, while Couch Consulting will undertake the structural engineering. Halligan Consulting Engineers will complete the mechanical and engineering aspects of the build. Pictured: The Photographic Works on Camden Street in Birmingham’s Jewellery Quarter.

With a major project surrounding the launch of a hybrid structural building system using low carbon materials already underway, both Nick and Tim are eager to channel their experience into creating a new wave of sustainable solutions for the industry. New R&D Director, Tim Doubell, who will be responsible for driving new, industry leading solutions commented: ‘Launching a hybrid structural flooring solution is a really exciting starting point for us as a team. By integrating cross laminated timber in conjunction with an light steel frame structure, the concrete usage is eliminated. It’s this type of innovation that will make a real difference as the industry works towards achieving its net zero carbon targets.’ Pictured: Nick Milestone (top image) joins the team as Engineering Director and Tim Doubell (bottom image) will take up the newly created post of R&D Director. To find out more go to: www.sigmat.co.uk


INDUSTRY NEWS

'FACTORY IN A CAN' Vega Construction Group has launched a ‘factory in a can’ to manufacture steel frames on site. The Essex based specialist has installed a Framecad light steel frame roll forming machine into a shipping container to manufactured framing systems in situ saving on the transport of materials and associated carbon emissions. The Framecad mobile factory can hold around 18 tonnes of steel in its own racking system ready for use on a wide range of buildings. It has been used to create an apartment complex in Croydon and will be used on its biggest job to date – a 118-bed student accommodation block in Gloucester.

Our widest range of Light Gauge Steel products to date, designed to make life simpler for builders, engineers and architects. Pick up your copy of our brand NEW Connectors and Fasteners for Light Gauge Steel 2021 Catalogue. Building Safer, Stronger Structures.

Connect with us: 01827 255600 | www.strongtie.co.uk |

@strongtieUK


INDUSTRY NEWS

LSF DELIVERS PRECISION ENGINEERED HIGH QUALITY SCHEME

MANSELL LAUNCH SFS OFFERING FOR LOW-RISE RESIDENTIAL Mansell Finishes has announced the launch of their steel framing system (SFS) offering for the low-rise residential sector. As early adopters of SFS installations over 20-years ago, and one of only a handful of companies in the UK with the skills and capability to deliver offsite pre-panelised solutions, the team has worked on some significant high rise-projects resulting in changing the skyline of city centres across the country. Expanding into the low-rise housing market, targeting social and private residential, is now the next strategic step in developing the business. Aligning with the government’s recently announced ‘Green Industrial Revolution’ the Mansell team intends to deliver more homes, much faster, and with a lower environmental impact. The fabrication and installation of offsite panelised lightweight SFS for housebuilders and main contractors will provide a direct alternative to timber frames and traditional construction, and is part of the solution to ‘build, build, build’ new homes more efficiently across the country.

Henley Construct, a division of the Henley Homes Group, has completed the transformation of a former council office site in Wembley, handing over much needed affordable housing to Notting Hill Genesis. The developer has delivered 248 new apartments of affordable and private sale homes to the housing association, alongside circa 6,000 square feet of retail space to include a Sainsbury’s Local. The apartments, retail space and landscaped public plaza sit on the 1.9 acre site which was home to the outdated 1960’s council building, known as Brent House. The mixed-use development includes two linear buildings of five principle blocks ranging from seven to 10 storeys high. Henley Construct applied modern construction solutions for the scheme utilising DfMA principles for efficiency by building steel frames offsite in its own lightweight steel factory, Intelligent Steel Solutions. By controlling up to 40% of its supply chain, Henley favour the use of lightweight steel frames for its own developments as well as for its clients, including

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the social housing sector, due to efficient costs and tighter delivery programmes, without compromising on design, quality and sustainability. By manufacturing offsite, Henley aims to reduce its carbon footprint by minimising site waste removals, reducing traffic movements and using recyclable materials in construction. Aaron Usmani, Director of Construction at Henley, comments: “Thanks to significant time and cost efficiencies due to our in-house manufacturing capability, we were able to deliver precision engineered, high quality housing of varying tenures at scale and pace for Notting Hill Genesis. This ultimately reflects our ethos that everyone should have access to quality housing, regardless of whether they are renting or buying.” “We are proud of what we have delivered at Brent House, which introduces a positive change to the immediate vicinity of the site, enhancing the character and wider regeneration of Wembley. To find out more go to: www.henley-homes.co.uk

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Managing Director Angela Mansell commented: “It’s time for a different conversation about how we achieve housebuilding targets in the UK. With up to 180,000 new homes identified to be built between 2021 to 2026 under the Affordable Homes Programme, the solution to build quicker and more sustainably yet maintain an exceptional level of quality is something which is long overdue in the industry.” Mansell’s first low-rise housing scheme Broadoaks Mews in Solihull has just started on site and the highly efficient new housing development is current taking shape. Broadoaks Mews comprises nine luxury homes across two blocks and is the second phase of the wider Broadoaks residential scheme. Led by Shropshire based main contractor Bespoke Construction, on behalf of a joint venture partnership with Investin PLC, these three and four-bedroom houses have been designed by Wake Morley Architects with sustainability at the fore. To find out more go to: www.mansellfinishes.co.uk


ADVERTORIAL

PAIN RELIEF FOR INTERIOR CONTRACTORS? INTRODUCING INTERIOR INFILL FRAMING THAT ALWAYS MEASURES UP

Pre-Punched and self-locating components are easily assembled.

Infill telescopic profiles produced by the Howick X-TENDA 3600 extend to fit every time.

ANYONE WORKING IN THE RETROFIT FRAMING SPACE KNOWS THAT INTERNAL STRUCTURES ON EXISTING PREMISES ARE ALMOST NEVER SQUARE.

This makes traditional framing approaches a constant trial. It requires highly accurate measurements of every length and the calculation of complex angles. Then cutting (and often re-cutting) of framing components onsite. And of course, all of this requires a skilled crew. The wastage from off-cuts and the necessity of re-work add cost and time to the process, as do the clean-up requirements to make good the site once work is complete.

non-level of spaces. Panels extend upwards and outwards on each side, so they always fit.

Welcome to telescopic framing for interior and retrofit spaces.

They eliminate the need for constant measuring and remeasuring, snipping and adjusting onsite. Any doors and windows within the panels are fixed to remain perfectly square at all times. That means contractors save time, effort and reduce wastage too. And they make levelling up soffit panels a breeze. Telescopic panels with two-axis or multi-axis extensions are preassembled and compressed for delivery.

Howick’s X-TENDA 3600 is a game-changing interior framing system. It produces light gauge steel telescopic framing for infill interior walls and ceilings.

Frames are strong, lightweight, and retractable, so they are easy to move around onsite, even in tight spaces. Then expand and secure for a fitting end, every time.

The framing components produced can be pre-assembled offsite, compressed for easy manoeuvre, then quickly expanded and adjusted onsite for a precise fit every time.

Nick Coubray, CEO of Howick, had this to say about the new Howick X-TENDA 3600: “This system resulted from a collaboration with a contractor. Because it produces extendable frames that expand outwards and upwards, they easily adjust to fit the most uneven of interior spaces. It is already proving to be a game-changer, dramatically reducing installation times.”

The telescopic panels produced make it easy to frame interiors, even when dealing with the most uneven and

Panels are lightweight for easy manoeuvre onsite. What’s more, because they can be compressed to fit into elevators, you often cut the need for cranage.

See the Howick X-TENDA 3600 In Action Howick’s X-TENDA 3600 promises to transform the interior framing space. To find out more and see the complete digital design-to-fabrication-toinstallation workflow, scan the QR code.

If you are over the pain of interior panelling, get in touch today to find out more about how the Howick X-TENDA 3600 could make your interior framing operation more efficient and profitable.

For more information visit: www.howickltd.com or email: deon@howickltd.com

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INDUSTRY NEWS

UNPRECEDENTED TIMES CALLED FOR UNPRECEDENTED MEASURES As a fourth-generation family owned and managed company, JJ Smith leading supplier of construction machinery, take a long-term view. Here Managing Director Martin Smith shares his perspective on the March 2021 budget. We were particularly pleased with the budget’s focus on new machinery investment. Beginning April 2021 until the end of March 2023, companies can claim 130% capital allowances on qualifying plant and machinery investments. Under the 'super-deduction' firms will be able to cut their taxes by up to 25p for every pound they invest. If a company were to invest £50,000 in new machinery, they would reduce their taxable income by £65,000. This provides a fantastic opportunity for UK businesses to invest in new machinery that will enable them to be more productive, innovative or efficient while simultaneously reducing their corporation tax liabilities. As a leading supplier of automated equipment solutions for the offsite sector through our subsidiary company Modular Building Automation, we welcome the increased focus on this contemporary construction method and the investment in the budget as a key

TORSION REVEALS INNOVATIVE SUSTAINABILITY MEASURES

Construction has begun on a new purposebuilt student accommodation scheme which will provide rooms for University of Lincoln students. Pine Mill is being delivered by Torsion Developments in a joint venture with Harrison Street Real Estate Capital LLC.

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driver for jobs and prosperity. Being the only offsite construction machinery supplier in the UK, we are well placed to assist businesses large and small looking to innovate in this sector. JJ Smith are a family business based in Knowsley who strongly believe in the benefit of apprenticeships and are proud to provide employment and training opportunities to local people. The announcement of the plan for additional £126 million for 40,000 more traineeships in England is good news for young people. This will fund high quality work placements and training for 16-24 year olds in 2021/22 academic year. As well as this there is an extension of the apprenticeship hiring incentive in England to September 2021 and an increase

of payment to £3,000. We currently employ five apprentices and endeavour to hire two new apprentices every year, so welcome the incentives for companies like ours to continue to offer opportunities to young people at the start of their careers. Pictured: Ben Pybus receiving his certificate of completion for his apprenticeship from Managing Director Martin Smith. They are pictured in front of one of the machines suitable for Modern Methods of Construction (MMC) and two current apprentices. To find out more go to: www.jjsmith.co.uk

The development on Tritton Road will include 361 ensuite bedrooms including seven accessible ground floor bedrooms. The townhouses will be arranged in a series of seven, four-storey linear blocks, which overlook private and secure landscaped courtyards.

With the construction industry ramping up its use of modular construction, early engagement in the design process has enabled the project team to take advantage of the offsite manufacturing process – with 400 plasterboard packs and 354-bathroom pods being craned in.

With frame contractor Sigmat working to a 28-week development schedule, they are using a range of sustainable building techniques and ensuring the development does not disrupt the surrounding environment. Pine Mill is due to be completed ahead of the 2021 -2022 academic year.

While the process uses all the same materials, standards and codes as conventional buildings, a lightweight steel frame construction made up in the factory negates the need for onsite build and avoids excess waste. The offsite construction allows Torsion and Sigmat to complete the build in around half the time – with less risk of complaints about noise and disruption on site. The PBSA scheme also employs a sustainable drainage system, with top water attenuation ensuring that the main drain does not get overloaded in the event of a flood. Once the scheme is complete the site will also include electric car charging points.

David Worsley, Director, Torsion Development said: “We have a number of measures in place to ensure our construction work does not disturb surrounding ecology. To protect local wildlife in the dyke adjoining the site, we have fenced off the area and introduced a silt trap to ensure that surface water from the site does not contaminate the dyke. We are also segregating waste and have ensured a number of existing trees, ones without specific preservation orders, have been retained.”

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To find out more go to: www.torsion-developments.co.uk


INDUSTRY NEWS

POSITIVE FORCES AT PLAY DESPITE THE PANDEMIC Light Steel Frame Association (LSFA) members have reported healthy pipelines which cannot just be attributed to the impact of the pandemic as the construction industry turns to offsite factory technology to mitigate on site risks. No doubt Covid accelerated the transition from traditional site-based approaches to modern methods of construction which benefit from having fewer people on site and a more factory-controlled environment. LSFA members believe there are other forces at work such as the government-led drive towards modern methods of construction (MMC) to achieve sustainability gains and the fear of a Brexit-driven skills exodus. Another factor is the introduction of new fire regulations which have put severe limitations on not only constructing in structural timber but also have wide-ranging insurance and liability implications.

“The pandemic has perversely been quite good for us. We have seen an uptick in people moving away from timber, even the two and three-storey housing market,” says Ryan Simmonds, Sigmat’s Pre-contracts Director.

Intelligent Steel Solutions is investing to improve its design efficiency further. “We work with Tekla, a 3D modelling system,” says Nigel Storey, Managing Director of Intelligent Steel. “We are investing £100,000 this year to be able to run a smart system that has a degree of intelligence. So, for instance when you put a door in you do not have to detail every individual element – the system does it for you.”

Sigmat has delivered huge amounts of student accommodation – over 30,000 rooms in 24 locations but works across many other sectors. Its current schemes include a five-star hotel, a luxury bungalow scheme, a 10-storey mixed-use building in Nottingham and a retirement home in Hexham, Northumberland.

Intelligent Steel Solutions sister company Henley Homes has reported a doubling in turnover during the Covid-19 period.

Residential is the main market for Intelligent Steel Solutions, which manufactures 2D panels, some of which go on to volumetric suppliers to be turned into 3D modular structures. It also supplies panels for custodial, military, healthcare, education and hotels.

To find out more about the Light Steel Frame Association go to: www.lsf-association.co.uk

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CASE STUDY

RAPID RESPONSE REQUIRED FOR INTENSIVE CARE UNITS

CENTRED AROUND MODERN METHODS OF CONSTRUCTION (MMC), TEKBUILD OFFER A WIDER VARIETY OF DESIGN, ENGINEERING, PROJECT MANAGEMENT AND INSTALLATION SERVICES. LIGHT STEEL FRAME (LSF) AS AN ADVANCED OFFSITE TECHNOLOGY IS TEKBUILD’S CORE STRUCTURAL SOLUTION.

Along with light steel frame infill and loadbearing systems, the steel subcontractors also specialise in hybrid structures which combine the efficiency of cold and hot rolled steel – delivering a rapid, robust and cost-effective solution. Working nationwide, Tekbuild are subcontract installers for numerous light steel frame suppliers.

Tekbuild also installed floor and roof cassettes which measured 12m x 3m and were pre-fitted with Lewis Deck for the floors and Oriented Strand Board (OSB) for the roofs. Wall panels were factory fitted with Y-Wall, a BBA Certified A1 non-combustible sheathing board. Steel stairs were also installed as part of the build.

As part of their COVID-19 response programme, Hull Royal Infirmary urgently required two new intensive care units. Tekbuild managed the installation of the structure which encompassed a hot rolled steel ‘skeleton’ frame with two-storeys of LSF loadbearing wall panels on the side elevations and a light steel frame infill system for the gable adjoining the existing building.

The structure which is central to the hospital site is bordered on three sides by existing intensive care units together with medical and surgical wards with the fourth side being a ‘blue light run’ for access to the accident and emergency department for ambulances.

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Andy Scholes, Managing Director at Tekbuild points out that although pre-planning is always crucial to offsite

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construction it was vitally important for the successful installation of this project. “This was a particularly interesting install due to the nature of the hybrid structure. The wide diversity and size of components within the build proved challenging such as the LSF panelised system integrated with loadbearing floor and roof cassettes. “The very location within a confined site, immediately adjacent to an active healthcare facility that was under severe pressure – required an extremely considerate and sensitive approach. In addition, our team had to contend with the pressure of the short build programme due to the urgent need for the completion of the wards. Due to great planning from our project managers together with a concerted and dedicated effort by our site team, we completed the install to programme in just four weeks.” Paul Hutchinson Company Director added: “Due to the successful installation of this project we are now moving straight onto a second building for the same client and hospital trust.”

For more information visit: www.tekbuildlimited.co.uk


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CASE STUDY

LSF KEEPING THE ENGINE YARD ON TRACK

bars, coffee shops and delis are within easy reach and the site also contains a fully equipped fitness centre and underground parking.

ESTABLISHED IN 1917 THE VEITCHI GROUP IS ONE OF SCOTLAND’S LARGEST AND MOST RESPECTED CONSTRUCTION COMPANIES.

It comprises five trading companies, each of which are leaders in their own right and provide a wide variety of services to the construction industry across the UK such as flooring, interior fit-out, building preservation and restoration, and lightweight steel frame expertise. Veitchi work closely with clients to understand their specific needs and provide a tailor-made delivery across various trades focussing on the key areas of safety, innovation, reliability, quality, cost and added value. These values ensured Veitchi Frame was successful in securing and subsequently delivering Places for People’s vision for The Engine Yard development in Leith, Edinburgh. This particular area has industrial architecture running through its veins. Previously, the site was home to the city’s historic tram depot and the developers chose to retain and highlight many of the magnificent original features. In what is a delicate blend

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of old and new, the new build homes have been sensitively designed to sit alongside the tram sheds, chimney, the boundary wall and gables. With the creation of over 370 homes, a brand-new community is being created in what is being described as one of the most exciting places to live in Edinburgh. The new one and twobedroom apartments being developed on the landmark site provide much needed new housing within the capital. The design of these modern homes incorporates elements of the city’s traditional architecture whilst managing to provide an open plan feel. The addition of balconies and dual aspect windows allow the residents to maximise views of the surrounding area and further views of the city. The development is located in a highly desirable area, on the edge of the New Town and only 10 minutes’ walk to the city centre. A multitude of restaurants,

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Working in partnership with voelstapine Metsec plc, the UK’s largest specialist cold roll forming company, Veitchi Frame designed, manufactured, supplied, and erected three blocks of apartments over seven storeys and a total floor area of 17,500m2. From the bespoke offsite Veitchi Frame facility in Lanarkshire the wall panels were assembled and delivered to site in the required erection sequence. In all, more than 700 tonnes of Metframe were supplied to The Engine Yard. The project itself provided some unique challenges and access to the site was limited. The site is flanked on one side by Leith Walk, one of Edinburgh’s busiest streets, and on another by a live railway line. With up to four cranes in operation erecting the structure there were many logistical hurdles which they able to overcome. Veitchi Frame also provided solutions for key areas of the structures’ design, including stone cladding to complement Edinburgh’s iconic sandstone architecture whilst retaining a modern appearance, extensive external walkways to frame courtyard areas and acoustic isolation of the apartments from the gym and function rooms in the first apartment block. Veitchi Frame successfully delivered the completed project within the 30-week programme.

For more information visit: www.veitchiframe.com


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• Veitchi Frame projects completed throughout the UK i Frame projects completed throughout the UK • Veitchi Frame projects completed throughout the UK • Veitchi Frame is an approved Metframe installer Frame projects completed throughout the UK i Frame is an Metframe installerMetframe installer • approved Veitchi Frame is an approved • Design warranty and 30 year MetWALL Perform warranty Veitchi Frame is an approved Metframe installer warranty and 30 year MetWALL warrantyPerform warranty • Design warranty and Perform 30 year MetWALL • NHBC SCI approved foryear up to 15 storeys Design/warranty and 30 MetWALL Perform warranty / SCI approved for up to 15 storeysfor up to 15 storeys • NHBC / SCI approved NHBC / SCI approved for upedge to 15protection storeys system • Independent & accredited • Independent & accredited edge protection system endent & accredited edge protection system Independent & in accredited edgefactory protection system • Manufactured a controlled environment Manufactured in a environment controlled factory environment actured in a•• controlled factory Manufactured in a and controlled factory environment High thermal, fire acoustic benefits High thermal, fire and acoustic benefits hermal, fire••and acoustic High thermal, fire and acoustic benefits Zero waste benefits • Zero waste waste Zero Level waste2 compliant • BIM •• BIM Level 22 compliant compliant BIM Level evel 2 compliant

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CASE STUDY

INTELLIGENT SOLUTION FOR APARTMENT SCHEME

01

NEWLANDS ROAD IS A LIVE RESIDENTIAL SCHEME SPLIT OVER MULTIPLE PHASES UTILISING LIGHTWEIGHT STEEL FRAME TECHNOLOGY FROM INTELLIGENT STEEL SOLUTIONS. THE COMPLETED DEVELOPMENT WILL COMPRISE 11 BUILDINGS RANGING FROM THREE TO SEVEN STOREYS IN HEIGHT PROVIDING A TOTAL OF 340 ONE AND TWO-BEDROOM APARTMENTS, CAR PARKING, LANDSCAPING AND ANCILLARY WORKS.

Work commenced in the first quarter of 2020 with MCR Property Group operating the site. Although the pandemic slowed things down, progress on site remained steady throughout the year with staff able to maintain social distancing. Learnings from the first development in this multi-block scheme provided insights into how the subsequent units could be delivered even more efficiently. Being able to reflect, evaluate and improve how a scheme

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is delivered is something that large multi-block, multi-phase projects can achieve. This is just one of the many benefits associated with panelised light steel frame offsite construction. Through early engagement with their in-house design and engineering team, Intelligent Steel Solutions has the ability to incorporate ways of enhancing delivery and installation for the benefit of its clients. Operating nationwide, their team of 10 in-house design and engineering professionals

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have a combined experience of around 50 years’ in creating cold formed steel solutions to Design for Manufacture and Assembly (DfMA) principles. Both MCR Property Group and Intelligent Steel benefited from early engagement on the project with light steel frame incorporated into the design from the offset. James Mitchell, Senior Project Manager at MCR Property Group said: “Intelligent Steel Solutions have done a superb job


CASE STUDY

02 here on our site in Luton. It has been eye opening to see how quickly steel frame structures can be assembled. It’s been a pleasure to work together.” With residential apartment schemes, unlike simple student accommodation units or single room hotel designs with short spans – repetition floor to floor is more difficult to achieve. The developer is trying to not only sell or rent apartments but promote a new way of living that will enhance life and well-being – delivering an experience worth investing in. The design concept therefore has to take this into account when delivering the ‘dream’ to prospective buyers. By investing in light steel framing technology, MCR Property Group benefited from efficiencies in the overall build programme by aligning as many loadbearing walls as possible, thus reducing the requirement for additional hot rolled steel support. At Newlands Road, Intelligent Steel have investigated project statistics for Blocks E, F, G, H, I, J, K and can report that less than 90t of hot rolled steel has been used over the 18,011m2 of floors. Just over 10km of light steel frame panels have been installed and nearly 900t of cold rolled steel. This means that the percentage of hot rolled steel against the cold rolled light steel full structural solution was at less

03

than 10%. For a residential apartment scheme, this is an efficient solution that offered a shorter build programme, cost certainty, zero waste to landfill and a steel system that is fully recyclable and environmentally sustainable.

With the site benefiting from consistent progress and the programme accelerated due to the use of lightweight steel frame, the final phases will see overall completion by the end of the second quarter in 2022.

From a health and safety standpoint, light steel frame is installed with less operatives so improving site safety and allowing in this current climate, easier site management and the implementation of social distancing procedures and Covid safe working practices.

For more information visit: www.intelligentsteel.com IMAGES 01-03. The completed Newlands Road development will comprise 11 buildings ranging from three to seven storeys providing 340 one and two-bedroom apartments.

LIGHTSTEELFRAMINGMAGAZINE.CO.UK

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SPECIFICATION & ENGINEERING

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UTILISING LIGHT STEEL FRAME AS THE PRINCIPLE STRUCTURAL COMPONENT IN A BUILDING CREATES MANY DESIGN OPPORTUNITIES. ENGAGING THE MANUFACTURER’S DESIGN TEAM EARLY ENSURES THAT THEIR KNOWLEDGE AND EXPERTISE IN THE USE OF THE SYSTEM PERMEATES THROUGH THE DESIGN PROCESS. There are some crucial factors that can transform design, engineering and specification decisions which not only streamline the construction process but can also save a vast amount of time and money. Back in September 2020 the Light Steel Frame Association (LSFA) formed a working group with some of its members including EOS, DACS, Evolusion Innovation, Fusion Building Systems, Sigmat, Siderise, Ayrshire Metals Cogent Consulting and SCI – to develop a Specification and Engineering Guide to ensure that construction professionals gain maximum benefits from specifying light steel framing systems. Freely available to download, this guide outlines design opportunities, fire safety, performance in construction and in use together with the different types of systems, applications, and interfaces of light steel frame. Most importantly, the Specification and Engineering Guide

outlines the sustainability benefits of steel that are not widely understood. Steel construction provides the most sustainable and economic buildings, representing the most efficient use of resources. This longevity combined with the inherent value of an asset that can be recycled or reused at end of life means that steel is not a cost, it is an investment. The LSFA collaborate with the Steel Construction Institute (SCI) who are a trusted, independent source of information and engineering expertise globally for over 30 years, and remain the leading, independent provider of technical expertise and disseminator of best practice to the steel construction sector. Throughout this guide you will find links to useful documents published by the SCI and other leading industry organisations. As the construction industry looks to raise the bar to meet the proposed new Building Regulations banning

the use of combustible materials, the light steel frame industry is witnessing unparalleled demand for panelised and volumetric modular systems, together with ‘through the wall’ solutions which are delivered to site complete with wall linings and sheathing boards. The Light Steel Frame Association is the representative body for LSF manufacturers, fabricators, structural building contractors and supply chain members including erectors, installers, designers, structural engineers and consultants. The Association works with members to raise awareness of the performance, productivity and sustainability benefits of steel.

For more information on the Light Steel Frame Association and its members visit: www.lsf-association.co.uk

To download your free copy of the Specification & Engineering Guide for Light Steel Frame go to: www.lsf-association.co.uk/library/lsfa-specification-and-engineering-guide

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LIGHTSTEELFRAMINGMAGAZINE.CO.UK


CREATING SYNERGY ACROSS THE SUPPLY CHAIN Architects

ACADEMICS

Clients

ENGINEERS

SPECIFIERS CONSULTANTS

Supporting the Circular Economy

Manufacturers

Installers

COLLABORATE TO INNOVATE Forward thinking with an inclusive culture – the Light Steel Frame Association unifies and unites construction professionals: • Increasing collaboration, joint venture and networking opportunities • Securing valuable industry intel and gaining direct access to the UK’s leading manufacturers • Exploring project parameters by joining the Design for Manufacture and Assembly debate • Gaining key industry contacts and securing business development opportunities • Acquiring light steel frame insight and technical offsite manufacturing expertise • Obtaining access to the latest research and information sharing with industry pioneers

Supply Chain

COLLECTIVE POWER The collective power of the Light Steel Frame Association is driving growth and specification of innovative light steel frame systems across all construction sectors. Our flat-rate annual fee for each membership category facilitates equal representation.

To be part of something bigger, contact us today… Call: 01743 290 030 Email: Info@lsf-association.co.uk Light Steel Frame Association @LSF_Association

WWW.LSF-ASSOCIATION.CO.UK


he

SHAPING THE FUTURE IN METAL

Hadley Steel Framing provides high quality, light gauge galvanised steel structural framing systems for use in a wide range of applications across the construction industry.

Hadley Steel Framing has proven experience in understanding complex engineering structures and provides full design, manufacture and installation packages. We take complete control, project managing every aspect. This is why our clients appoint us and retain our services time and time again. Achieving fast-track construction schedules - here we define our supportive services, including full ownership of the process, to demonstrate what we can deliver!

HANDOVER At the end of every project there is a comprehensive handover process encompassing final ‘as built’ drawings, Q&A documents, detailed warranties, all operating and maintenance information together with a forthright 360 degree review of the design, manufacturing and installation programme which also highlights where improvements can be made in future projects.

CONTROL 8 Hadley take complete ownership and management of the project - from engineering and manufacturing right through to onsite installation by our specialist teams which even includes cranage, AP and slingers within our inclusive packages. Via Trimble Fieldview we track and monitor every aspect – taking complete control.

MANUFACTURING

7

Our unparalleled rollforming expertise is underpinned by the manufacture of all panelised systems and components within the same advanced factory facility. This ensures rapid and efficient builds with accuracy and controls built in at each stage of the process. We optimise our own offsite manufactured sequence, bringing all elements together to improve your project delivery - the true definition of Modern Methods of Construction.

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Hadley maintain vertically integrated processes – controlling and optimising every aspect. All detailing takes place within the Group to ensure alignment with the original intent. We have the expertise and ability to scope, design, detail, verify, validate and deliver a fully engineered steel framing system.

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Your Trusted Steel Framing Delivery Partner Taking Complete Control 1

EARLY ENGAGEMENT Crucial to the success of all offsite construction projects, engagement from the initial stages facilitates an integrated design where for example, facades, windows, balconies, entrances and roof structures can be incorporated into the engineering calculations and design of the structural steel framing system. Our expert team ensure we add efficiency and structure to the process right from the outset.

TENDER STAGE

2

Full collaborative working at the tender stage maximises design, materials and manufacturing efficiencies. Layouts and sequencing can be optimised by developing a full understanding of our client’s requirements – to ultimately achieve vast programme and cost benefits. Our early engagement ensures no unwelcome surprises.

3

CONTRACT AWARDED Now we are officially part of the team. We grow our established links to offer commercial, design and engineering support. Through close collaboration we work as a delivery partner to your team – managing the entire process from the early design stages right through to the project completion.

4

5

PROCUREMENT Hadley Group is the UK’s largest procurer of pre-galvanised steel – we have significant capability and capacity to achieve even the largest and toughest build requirements. Included within this manufacturing scope are the stairs and all complementary works.

CONTINUITY Offering total synergy and continuity – the same Hadley team, the same communication channels, the same plan, the same detailed approach – will be maintained throughout the design, manufacturing and installation process. Our teams will oversee the entire process through to issue of our warranty.

MANUFACTURING MEMBER


FOCUS ON FRAMING

ROUNDTABLE DEBATE FRANK AND FORTHRIGHT DISCUSSIONS WERE THE ORDER OF THE DAY AT THE FOCUS ON FRAMING VIRTUAL ROUNDTABLE DEBATE – FACILITATED BY DARREN RICHARDS MANAGING DIRECTOR OF OFFSITE EXPERTS COGENT CONSULTING ON BEHALF OF THE LIGHT STEEL FRAME ASSOCIATION. Darren kicked off proceedings by inviting Emily King from Mid Group, to identify the main key drivers for the specification of light steel frame. As a material agnostic solution contractor, Emily explained that light steel framing is predominantly used for complex buildings where additional structural integrity is necessary: “Steel is the answer to complex questions where a lightweight response is required.” When asked whether a volumetric modular or panelised system is preferred, although Emily admitted she passionately believes in volumetric, she considered panelised systems offer more design adaptability adding: “If you get the design right, steel frame offers massive flexibility and cost benefits.”

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Discussions then turned to sustainability and the group agreed that the environmental benefits of using light steel framing systems are not widely understood and it was down to the industry to get this message out there. Steel is most definitely part of a carbon neutral solution and communicating this is crucial. Sustainability is perceived as being back at the top of the construction agenda, however when budgets come into play – the participants found safety, cost, programme, mass, design adaptability and structural integrity are more often the deciding factors.

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Robert Clark from Fusion Building Systems said: “There is a misconception about steel and to win the embodied carbon debate – we need to focus on the strength to weight message. Low weight equates to improved efficiencies – you get an awful lot of structure for not a lot of weight which reduces embodied carbon. This is where steel cannot be beaten. Lighter structures not only reduce material consumption but reduce concrete in the ground.” Conversations often involve disconnects between main contractors and their clients. The main contractor focuses on the safety and structural requirements of the project and the client wants sustainability – with steel you can achieve both.


FOCUS ON FRAMING

Peter Burchill from EOS Framing believes there is a real conflict at the moment in specification decisions and although the focus appears to be shifting to sustainability in reality safety wins hands down: “Light steel frame has real safety, fire performance and sustainability advantages but the recycled content is not widely acknowledged.”

Neville Grunwald of Wates Construction pressed home the point: “The first and primary consideration for the specification of the structural solution should be what we do from a fire perspective and only then, should carbon emissions and sustainability be discussed. The conversation needs to be more nuanced and focus on what you can and cannot use on a building from a safety perspective.” Steel is often compared to timber and Alex Small from Tata Steel is also looking to address the misconceptions surrounding the sustainability equation: “Discussions used to focus on lifecycle analysis including recycling at the end of a building’s life. This approach proves that light steel frame systems are intrinsically more sustainable but more recently the focus has been on embodied carbon which is far more simplistic. “This is probably because it is a less complex calculation and easier to digest but embodied carbon just reflects the start of a building’s life. This is not a case of kicking the ‘carbon can’ down the road - in use performance, the circular economy and recycling at the end of a building’s life are crucially important considerations. Digital value tool kits are required to provide much needed evidence to change the debate and to offer in-depth accurate analysis of whole life carbon calculations.” It was suggested that independent industry bodies such as the Construction Innovation Hub, BRE and the Green Building Council need to pick up on this and lead the debate on which is the more valuable calculation – embodied or whole life carbon.

The David Attenborough Building, University of Cambridge – light steel frame system manufactured by EOS.

The group also agreed specification is not a binary decision – buildings are the sum of many parts. David Ellison from Intelligent Steel Solutions added that only one of his clients had sustainability as the key driver, most consider which method of construction is right for the design but offsite is at the forefront of most developer’s thoughts. David explained: “Decisions are based on cost, capacity, site constraints, perceptions and future adaptability. There are a lot of key drivers that take precedence, but safety, cost, speed and predictability are at the top.” Continuing with the topic of sustainability, Darren then brought architect Des O’Dwyer into the debate asking: “When specifying or assessing a building where does sustainability sit?” Des O'Dwyer from Richard Hopkins Architects responded: “Unfortunately sustainability is currently falling down the list and that’s not only from a client’s perspective but equally from

an architects’ point of view. There are lots of reasons why – budget and programme being two, but architects have to not only consider risk from a building safety perspective but also an insurance standpoint. We are asked to de-risk a building and fire insurance clauses are making it very difficult to specify timber regardless of how it performs, so it carries enormous risk to us as designers. Also, the proposed change in Building Regulations extending the ban of combustible materials in external walls from 18 to 11 metres, is another thing to contend with.” Des went on to explain the challenge of perception: “The comparison is one of image – timber has a much ‘softer and more welcoming’ image and light steel frame is a more technical approach with designs being harder to visualise – so the industry needs visual design representations of what is achievable. If you talk to a lay person, they will not put steel ahead in the sustainability stakes but does this matter when most decisions are not based on this?

LIGHTSTEELFRAMINGMAGAZINE.CO.UK

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FOCUS ON FRAMING

“You need to play to the industries strengths - steel needs to offer a ‘whole package’ solution, an entire wall buildup – from internal linings through to the facade – this would de-risk the construction processes for architects.”

Darren Richards agreed that better communications are required, and the Light Steel Frame Association is now leading the charge in correcting misconceptions and promoting the strength to weight and fire safety benefits of light steel frame. Michael Sansom from the Steel Construction Institute (SCI) played the role of ‘devil’s advocate’ stating: “We in the industry know the attributes of light steel framing but for context we are facing a climate emergency. It is generally believed that operational carbon has been addressed and that we must now move on to reducing embodied carbon. However, evidence of the ‘performance gap’ demonstrated by CIBSE – TM54 Evaluating Operational Energy Performance of Buildings at the Design Stage – confirms that there is still much to do to reduce operational carbon. I can appreciate, more than most, the longterm benefits of steel and we have to look at the circular economy where recycling and reusing is massively important.” Neville wholly supported this adding: “Once we start looking at reusing metal components structural verification presents challenges but the real elephant in the room in the sustainability challenge is cost – once clients find out the true cost, they revert back to steel and concrete.” Emily agreed but added a note of caution: “Embodied energy is the most difficult part of the puzzle to solve. We have to collaborate to achieve the true ideal of the circular economy because you cannot claim one material will do every job. Steel is so efficient it is perfect for the job it is designed for but once we start looking at reusing, its bespoke nature presents challenges.”

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Facilitator Darren Richards

Jim Roach

Robert Clark

Chris Gatehouse

Managing Director, ARV Solutions

Head of Business Development, Fusion Building Systems

Regional Account Manager, Trimble Solutions/Tekla UK

David Ellison

Alex Small

Emily King

Des O'Dwyer

Director of Business Development, Intelligent Steel Solutions

BIM & Digital Platforms Client Solutions, Manager, TATA Steel Director Mid Group

Peter Burchill

Michael Sansom

Neville Grunwald

Business Development Manager, EOS Framing

Associate Director, Steel Construction Institute

Head of Facades, Wates Construction Limited

Cogent Consulting and LSFA Steering Group

Acknowledging that more collaboration is required Jim Roach from ARV Solutions stepped in at this point to stress: “I think there should be more collaboration not only within the light steel industry but also across the offsite material sectors. By adopting a united approach, offsite technologies will have a greater impact in influencing the construction industry to adopt modern methods of construction and move away from outmoded traditional on-site approaches." Darren then steered the conversation to the manufacturing environment and how the light steel sector is addressing waste and inefficiency in the construction process – pointing out that inefficient developments typically achieve very wasteful buildings.

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Director, Richard Hopkins Architects

The steel manufacturing environment is more automated and has become incredibly efficient at value engineering and minimising waste through design for manufacture and assembly (DfMA) approaches and the advances in digital engineering with better use of Building Information Modelling (BIM). Chris Gatehouse from Tekla picked up the conversation: “From a modelling point of view there is no waste – the software is engineered to allow customers to optimise precisely to their design requirements. With cold rolled steel the only waste is the swarf and offcuts produced in the manufacturing which are minimal and can be recycled.”


FOCUS ON

FRAMING

SEMINAR

Displaying ground breaking innovation through light steel framing solutions.

The use of Light Steel Frame is fundamental as a construction material within a wide range of building types and applications in the offsite sector. FOCUS ON FRAMING provides the opportunity to hear insightful case studies from those who are designing and

11.11.2021 LONDON

FOCUS ON FRAMING provides positive return-on-investment and is one of the only events of its kind. • Strengthen your brand positioning • Generate sales leads

developing the industry’s ground-breaking projects. The

• Build relationships with prospects

seminar will be complimented by an exhibition of leading

• Launch new products

businesses across the sector, and provide networking

• Survey attendees about new product ideas

prospects with those who are shaping the future of the Light Steel Frame industry.

• Research competitors’ products and messaging • Keep up on industry trends • Meet with key clients

FOCUS ON FRAMING is delivered in partnership with the LIGHT STEEL FRAME ASSOCIATION, which has been established to support the overall objectives and growth of the light steel framing sector.

BOOK NOW Tickets to FOCUS ON FRAMING cost £95 plus VAT or £65 plus VAT for LSFA members, which includes entry into the seminar, lunch and refreshments throughout.

To find out more or book your ticket please go to www.focusonframing.co.uk or call 01743 290001


FOCUS ON FRAMING

the message - it’s about educating architects – we do not come out of university with an in-depth knowledge of every material system – you just need to present a package of benefits and applications.” Light steel construction is used extensively in the UK in a wide range of building applications. The precise nature of the value benefits of light steel construction will depend on the application and project specifics. However, there are generally five overriding value benefits associated with light steel construction – safety, quality, speed, strength and lightweight. These lead to supplementary advantages, such as early completions, fewer snags, elimination of shrinkage and minimal re-work.

“One thing that is not considered as part of the sustainability equation is the utilisation percentage of steel – all offcuts are recycled and there is no waste at all. I would really like to see comparisons with other utilisation percentage metrics with materials such as timber.” Darren then moved on to discuss how more value is being added to the manufacturing process through the introduction of a systems approach such as pre-insulating panels in the factory which Fusion Building Systems have been doing for some time and the panelised through-wall approach that is now being pioneered by companies such as EOS which include boarding and insulation – taking waste out of other components that interface with steel. Darren posed the question: “Are we underplaying and under selling the levels of sophistication in the steel industry?

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Robert Clark responded with a resounding ‘yes’ highlighting just one example: “We have been working with a national housebuilder and through using Revit digital technology, Fusion Building Systems has managed the design process. Just through eliminating waste and time inefficiencies, vast savings per unit have been achieved. With a traditional approach to construction there is a massive amount of waste of materials and time – the savings were so vast we could not initially believe it ourselves.” As a contractor Emily King highlighted the need to get this message out there saying: “I attend many forums and there is a need for the light steel frame industry to get these positive messages out there. I have to present proposals to clients and the more knowledge I have, the more informed my recommendations.” Des O'Dwyer supported this view: “It’s easy to get wrapped up in the technical detail but you need to simplify

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Michael Sansom then raised a very significant point concerning the recycling and reusing process: “The light steel framing sector can learn from the hot rolled steel industry where SCI has produced a prototype database which we can upload all IFC files so we can retain all the design, manufacturing and structural information for all the steel elements used in a building. By capturing and storing all the information at the end of the building’s lifecycle steel components can be reused with confidence as we have all the properties captured and documented.” Darren totally agreed and said this is an area for the Light Steel Frame Association to progress and develop in association with their steering group and working with technical partners within SCI. Alex Small had several points he wanted to address starting with enabling reuse: “Standardisation and a system approach is the driving force behind our consortium led Seismic project which is working on the future of construction for schools and healthcare facilities. It is a logical development with impressive results on light steel standardisation and by supplying a documented kit of panelised or modular parts, everything becomes reusable at the end of a building’s life.”


FOCUS ON FRAMING

He then turned to embodied carbon and gave participants insight into the future: “There is a huge amount of work going on in steel production, we are working in partnership to develop the largest cluster of hydrogen plants in Europe and our goal is to be carbon neutral by 2050.

“Hisarna is a radical new technology completely transforming the way we make steel which can use 50% scrap steel and reduce carbon emission by 80%. A steel industry united around the recycling and reuse of components will offer massive embodied carbon benefits. If the business model is based on this, we are far more likely to offer buyback and leasing options for light steel in our future plans.” As the discussion evolved it was agreed that all the messages downstream of steel production are good news stories and steel brings major safety, adaptability and longevity benefits to construction. All steel producers have strategies for reducing embodied carbon and reports have plotted the route to low-carbon primary steel making which demonstrate that it is achievable at relatively affordable costs but there was a consensus that it is better for this to be led by European producers which operate under more stringent regulations.

Associate Director of SCI, Michael Sansom considered the circular economy and shared some thoughtprovoking facts: “In the UK we are largely self-sufficient in steel, by that I mean we can pretty well produce all the steel we need through recycling our latent stock to satisfy market demand. But steel is a global commodity, and we live in a global community. Many nations are still evolving but in developed economies there is a stock of 12 tonnes of steel per person and if we can get to that point globally – then we have eliminated primary steel production worldwide.” This point emphasised the fact that the demand for recycled steel is going to go up and there is a pressing need to grade and ID tag every component so that when it does come back into the market – quality steel ready to be recycled is easily identifiable. This sparked a healthy debate with Darren stressing how this information could be included in the ‘as built’ BIM Model but Alex said: “As steel manufacturers already keep this data, to drive the maximum possible benefits, they should be custodians of this information.” Chris Gatehouse raised a note of caution: “Embedding the data in the BIM model can be laborious and problematic, the most reliable and efficient solution is to link back to the manufacturer’s data.”

Michael picked up on this point: “The SCI are developing a portal to store and log information on steel components for recycling and reuse, it makes good sense to collaborate with Tata Steel and Tekla.” Darren also agreed to take this forward to the Light Steel Frame Association’s steering group and engage with manufacturing members as they could play a crucial role in progressing this for the future good of the industry.

Darren Richards representing the Light Steel Frame Association presented a roundup of the Focus on Framing roundtable event an thanked all participants for their valued input: “When we gather a group of construction industry professionals together and pose some challenging questions, we cannot predict the outcome. This has been a frank and honest discussion which will take the industry forward with the support of the Light Steel Frame Association. There are areas for improvement, and it is quite clear that this event will result in some key collaborations. Many thanks to ARV Solutions, EOS, Intelligent Steel and Trimble Solutions/Tekla for sponsoring the Virtual Roundtable Event and thanks to all participants for their time and contributions to the online discussion.

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SPECIALIST FASTENINGS

BUILD LIGHTER, BUILD STRONGER

GIVEN EJOT GROUP’S GLOBAL CROSS-SECTOR EXPERIENCE, MOST NOTABLY IN AUTOMOTIVE ASSEMBLY AND CONSTRUCTION ARENAS – IT IS ANTICIPATED THAT EJOT UK’S DECISION TO JOIN THE LIGHT STEEL FRAME ASSOCIATION (LSFA) WILL HELP UNLOCK LATENT POTENTIAL IN THE RAPIDLY EMERGING AREA OF SPECIALIST FASTENING PRODUCTS.

Unlike many other construction fastener manufacturers, the company can draw on expertise from different disciplines and many diverse fastening technologies to advance products and installation techniques across the modern building envelope. The joining of different lightweight material compositions within engineering applications is as much to do with the measured precision of installation tools and installation systems as the products themselves. This synergy offers great potential for the light steel sector. “We are already seeing the adaptation and integration of highly technical engineering processes into the planning and specifications for advanced offsite construction technologies, and this will transform next generation building processes,” says EJOT’s Technical Business Development Manager in the UK, Brian Mack.

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“For example, processes engineered for automotive assemblies are supporting the development of construction products, with engineers on both sides of the EJOT fence sharing expertise within a mutually respectful arena. Such innovations include highly sophisticated fastening systems for vehicle frame and chassis assembly - known as ‘body-in-white’. These advancements are already answering the global call to ‘build lighter, build stronger’.” Fully and semi-automated solutions developed in conjunction with industry partners, such as screwdriving specialist Deprag, are already proving pivotal in delivering an engineeringbased approach to a rapidly changing construction sector. This supports best practice and the progressive needs of light steel framing, especially within the volumetric modular and offsite sectors that EJOT is historically involved with.

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The Science of Installation Technology Being able to facilitate crossdepartmental collaboration can be vital for the progression of light steel framing systems but it is not without its cultural differences. Whilst fastening systems for construction are characterised by delivery to the right place at the right time, the supply to engineering customers is based on a much longerterm ethos of product development and shared project management. That often means re-engineering threads, materials, even tailoring coating technology to arrive at a new or a bespoke solution. This has resulted in unique thread-forming, metallurgy and organic coatings cross-pollinating all of the EJOT’s manufacturing via a learning curve for all sides and the emergence of what could be badged ‘the science of installation technology’. Dedicated Research and Development Development and testing are provided by the integral UK EJOT Applitec Centre - with additional expertise on tap at sister laboratories around the EJOT world. Investment made both locally and internationally within all of these centres is evidence of the EJOT Group’s commitment to support the objectives and forward-thinking approach of institutions such as the LSFA.

For more information visit: www.ejot.co.uk


Think of this as Light Steel Framing

EJOT’s advanced fastening capability spans global market sectors, providing solutions to a world of assembly applications. Lightweight vehicle assembly is just one example. It’s the sharing of this ‘make-lighter-build-stronger’ know-how, that is helping to create new products and installation techniques for the modern construction envelope, on and off site. Here in the UK our Applitec centre is at the hub of everything we design, test and manufacture; working with the EJOT Group worldwide and forming academic partnerships to embrace the challenges of a changing industry in a rapidly changing world.

EJOT® The Quality Connection

www.ejot.co.uk


SUSTAINABILITY

ADDING LONGEVITY TO THE SUSTAINABILITY DEBATE

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IT IS A FUNDAMENTAL OF GOOD DESIGN THAT BUILDINGS AND STRUCTURES SHOULD BE SAFE AND THAT MEASURES TO ENHANCE THEIR ENVIRONMENTAL PERFORMANCE SHOULD NOT COMPROMISE THIS ESSENTIAL REQUIREMENT. HERE STEVE THOMPSON, MANAGING DIRECTOR FOR SPECIALIST STEEL FRAMING MANUFACTURER EOS, ADDS LONGEVITY AND BUILDING PERFORMANCE TO THE SAFETY VERSUS SUSTAINABILITY DEBATE.

Buildings should not only be inherently safe but should also be constructed to last a long time and therefore be inherently sustainable. Buildings are responsible for almost half of the UK’s carbon emissions and around a third of its landfill waste. This means that the UK’s sustainable development targets cannot be met without a major change to the way in which buildings are designed, constructed, and operated. National targets for carbon emission reductions and the drive for buildings that are ‘low carbon’ in operation present a huge challenge to the construction industry – a challenge which the steel construction sector is playing a major part in overcoming.

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Manufactured from the most abundant element on earth, steel can be recycled or reused endlessly without detriment to its properties. This unique characteristic gives steel a high value at all stages of its life cycle. The recovery infrastructure for steel recycling is highly developed and extremely efficient and has been in place for decades. Current recovery rates from demolition sites in the UK are 99% for structural steelwork and 96% for all steel construction products – figures that far exceed those for any other construction material. Steel’s material properties make it the ultimate sustainable construction

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material both in terms of its longevity, material properties and enhancing the safety credentials of steel-framed buildings. Its superior strength-to-weight ratio means a little steel goes a long way, giving architects complete flexibility to innovate and create new and exciting buildings. Low and zero carbon buildings and buildings with high BREEAM ratings are readily achievable using steel construction. An excellent example of this is a project EOS were involved in to create a prestigious £25 million flagship Travelodge hotel in London that was


SUSTAINABILITY

02 developed as a declaration of renewed confidence in the brand following substantial investment. The aim was to deliver a fully clad offsite manufactured panelised steel frame system, complete with the sub frame of SFS infill panels, pre-fixed to a lightweight innovative stone cladding solution which not only looks outstanding but also achieves a highly energy efficient, non-combustible building envelope. Once delivered, the fully formed panels were craned in and fixed back to the substrate. The impressive eight storey, 395-room property is built to BREEAM excellent standards and delivered through innovative engineering combined with technically advanced offsite manufacturing. The greater efficiency and quality associated with sustainability is also helping to make this Travelodge more commercially successful. There is growing evidence that BREEAM Excellent buildings provide increased rates of return for hotel operators. BIM Level 2 technology combined with design for manufacture and assembly protocols reduced errors onsite and snagging – as well as enhancing the energy performance throughout the lifecycle of the building. When the cost of operating a building for 30-years can be four times greater than that of designing and building it, it is no surprise that those who own and maintain buildings are keen to find

03 in-use savings. Now we have more sophisticated research available, the equation of ‘build them high build them cheap’ – simply does not stack up from an owner operator’s perspective. And this is why steel framing systems are favoured by the build-to-rent, education, healthcare and other public sector buildings. The UK leads the world in steel construction both commercially, technically, and in terms of quality. The industry has made dramatic improvements in technology, productivity and efficiency. According to research carried out by independent consultants Construction Markets – steel continues to be overwhelmingly the structural framing material of choice with their survey showing that steel now has a 72.5% share of the multi-storey office market and a 60.9% share in the ‘other multi-storey buildings’ which includes retail, education, leisure and healthcare sectors. 100% ISO Success Quality, safety and sustainability are at the very core of our organisation, it is therefore with great pride that I share that EOS has just successfully completed three quality badge audits with 100% success and zero nonconformances. This is an outstanding achievement and testament to the work that went in to ensuring all procedures, records and management systems were in first-class order

providing the auditors with all the necessary information to award EOS total compliance with zero nonconformances. We successfully passed the five-day re-certification audit against ISO 9001:2015 quality management systems, ISO14001:2015 environmental management systems and ISO45001:2018 health and safety management with no nonconformance issues or even any opportunities for improvement or areas of concern. I would like to take this opportunity to publicly thank my team for their hard work and dedication to achieving the ultimate standard. Partnering Approach Partnerships are central to our business. We have a wealth of experience and our specialist teams strive to support our clients throughout the design and construction phase. EOS has the capability and capacity to meet the exacting demands of the construction industry and guarantee a very competitive price structure with no hidden costs for deflection heads or transport and we can provide a lump sum total cost which will not alter, providing the specification remains unchanged. IMAGES 01-03.

The impressive eight storey Travelodge is built to BREEAM excellent standards and delivered through innovative engineering combined with advanced offsite manufacturing by the EOS team.

To find out more about our products and services visit: www.eosframing.co.uk and to view our video case studies including the Travelodge Hotel and client testimonials go to: www.eosframing.co.uk/information-centre/video-vault

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SPECIFICATION

MAKING A COMPELLING CASE FOR LIGHT STEEL FRAME

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SHAPING OUR CITY SKYLINES, LIGHT STEEL FRAME (LSF) STRUCTURES COMPLETELY MEET THE REQUIREMENTS OF BUILDING REGULATIONS, LEADING WARRANTY AND INSURANCE PROVIDERS. THE PERFORMANCE OF LIGHT STEEL FRAME COVERS BUILD ACCURACY, STRUCTURAL STRENGTH, ACOUSTICS, THERMAL, AIRTIGHTNESS, WEATHER-TIGHTNESS, SHRINKAGE, PROGRAMME AND MOST IMPORTANTLY, FIRE DURING CONSTRUCTION AND IN USE.

Specification decisions come with major responsibilities, get it wrong and there are far reaching implications. Light steel framing systems augment the construction industry with a broad spectrum of benefits from delivering predictability of costs and programme to reducing risk and enhancing building safety. The versatility of steel offers architects the freedom to achieve their most ambitious visions and building owners value the safety benefits steel framing solutions provide. Steel is often compared with structural timber systems and theoretically timber systems are feasible for some projects, but in practise they are challenging from a building safety and insurance perspective. Here the Light Steel Frame Association identifies 10 compelling reasons to specify LSF systems. 1: Fire Safety Steel is non-combustible, it does not add to the fire load of the building – fire resistance periods of up to 120 minutes are readily achievable. The fire load of a building is a measure of how

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intensely it would burn should a fire break out. The higher the fire load, the more destructive a fire. The amount of combustible material in a light steel framed building is much lower than in some other forms of construction. 2: Fast and Efficient Manufactured using digital and CNC steel roll forming technology delivers pinpoint precision. Framing components are dimensionally precise resulting in more accurate construction and faster build times. Offsite approaches enable pre-assembled light steel systems to be delivered to site ready for immediate installation – making time savings and reducing on site labour costs. 3: Less Waste Light steel wastage is just 2% which adds up to considerable cost savings. SCI studies report that waste reductions of up to 70% are achievable. Less wastage is not only sustainable but more efficient and cost saving benefits can be passed on to customers.

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4: 100% Recyclable It is not just a reduction in wastage that is important, it is the environmental impact of what happens to waste – steel is 100% recyclable. Steel can be used time and time again, without losing any of its structural integrity or performance properties. The recovery infrastructure for steel recycling is highly developed and extremely efficient and has been in place for decades. Current recovery rates from demolition sites in the UK are 99% for structural steelwork and 96% for all steel construction products – figures that far exceed those for any other construction material. 5: Long Spans Light steel frame creates robust structures that satisfy the Building Regulation requirement for avoidance of disproportionate collapse. Loadbearing walls are produced to distribute loads evenly rather than relying on load-bearing columns. Long spans result in adaptable column-free internal spaces which reduce substructure costs and installation times. This broad range of benefits means that steel framing systems are commonly found in a wide range of building types.


SPECIFICATION

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6: Cost Benefits Opting for steel frame construction can easily reduce project costs. Due the high strength to weight advantages – a little steel goes a long way. The rapid installation process reduces site labour costs. The ‘right first time’ benefits achieved through the accuracy in the manufacturing process results in less re-working, less call-backs, and less wastage – all positively influencing the final costs. Over the longer-term steel framing systems remain straight and true. This means less issues with cracking, fixtures and fittings over time, so the cost of ongoing maintenance is reduced.

9. Performance Light steel frame structures with their well understood section properties are capable of being optimally engineered to ensure highly efficient material use with a reduction in materials of up to 50%. In addition to high strength to weight ratio, LSF systems with widely distributed points of connection, are also ideally suited to design to avoid the risk of disproportionate collapse.

10: Longevity Light steel construction is not new – steel structures have been tried and tested for decades now and have truly stood the test of time. In residential and commercial construction, it has been used successfully for over 60 years. Steel is denser, stronger and more durable than other materials and there is no water absorption resulting in dimensional changes.

Thermal – as steel is an extremely good conductor of heat, thermal bridging is a key consideration with light steel frame wall systems. All systems use warm frame principles, whereby insulation is placed outside the frame, keeping the frame warm and eliminating the risk of interstitial condensation.

Steel construction provides the most sustainable and economic buildings, representing the most efficient use of resources. This longevity combined with the inherent value of an asset that can be recycled or reused at end of life means that steel is not a cost, it is an investment.

7: Versatility One of the main advantages of light steel framing is its versatility and the range of building types for which it can be used. Applications of light steel framing range from low-rise housing to multi-storey, multi-occupancy developments, including panelised structural frames, external infill walling systems and fully finished offsite modular construction. 8: High Strength to Weight Ratio Cold formed steel offers the highest strength to weight ratio of any framing material. The reduction in weight does not come at the expense of high mechanical strength. Providing a lighter structure with no shrinkage and stronger connections means greater wind load strength and less weight reduces the requirement for concrete foundations providing environmental benefits. In UK cities less weight also reduces the loading on complex underground infrastructures meaning more storeys can be achieved in medium and high-rise applications.

Acoustic – robust and reliable acoustic performance is achieved using well established and tested principles, further aided by the dimensional accuracy of light steel frame structures.

IMAGES 01. Light steel frame – shaping our city skylines 02. Ayrshire Metals – Reliance House, Liverpool 03. Fusion Building Systems – student accommodation, University of Sussex 04. Sigmat – installation of light steel panelised system

The UK leads the world in steel construction commercially, technically, and in terms of quality. The industry has made dramatic improvements in technology, productivity and efficiency. According to research carried out by independent consultants Construction Markets – steel continues to be overwhelmingly the structural framing material of choice with their survey showing that steel now has a 72.5% share of the multi-storey office market and a 60.9% share in the ‘other multi-storey buildings’ which includes retail, education, leisure and healthcare sectors.

To find out more about light steel frame go to: www.lsf-association.co.uk

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STEEL BLOG

DESIGNING SUSTAINABLE BUILDINGS FOR DISASSEMBLY AND REUSE

THE GROWING WORLD POPULATION AND INCREASING PROSPERITY HAVE A MAJOR IMPACT ON THE USE OF RAW MATERIALS AND ENERGY. IT IS BECOMING INCREASINGLY CLEAR THAT THE TRANSITION FROM A LINEAR ECONOMY TO A CIRCULAR ECONOMY IS REALLY NECESSARY.

Steel is 100% recyclable while maintaining quality. In addition, steel can be reused as building components. This makes steel extremely suitable for the transformation to a more circular way of thinking, developing, designing and building. Easy to Disassemble Again and Again If you think in a 'circular' way, then the building as a whole or in parts must be reusable and it must, therefore, be easy to take apart. The experience and expertise of suppliers like Tata Steel

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can be helpful in making these kinds of decisions in the design process from both a technical and a financial point of view. And sometimes relatively simple changes can offer a solution. For example, by working almost exclusively with bolted connections instead of welded connections in the main steel supporting structure. Other building components, such as steel roof and facade elements can also be disassembled and thus reused using the removeable screw connections.

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Sometimes solutions are more innovative. The anchors by which the columns of the supporting structure are attached to the foundation are not cast into the floor but housed in a steel casing around the column base. This container is filled with stabilised sand and covered with a thin layer of concrete. To reuse the column in the future, only the concrete cover layer needs to be removed to expose the anchors and dismantle the column. BIM and LCA You can make constructive design decisions that make it easier to reuse materials. But you can also look at smart data management during programming, design and construction. The collection and reporting of material data help to build circularly. A good instrument for this is the Building Information Modelling (BIM) model, which is increasingly being followed. The material data in the BIM model can be included in a Material Passport: an online proof of identity of the building. It shows where each material and product are located in the building, in what quantities, how it is processed and how it can be dismantled for reuse. This fits in perfectly with the 'circular’ idea of the project and fits in with the vision to look more and more at the life cycle of a building and its impact on the environment. The recognised method used for this is the Life Cycle Analysis (LCA). Sustainable Construction Ultimately, the total concept of a sustainable construction project is a sum of its parts. A result in which countless details are optimally matched. This involves looking at the reuse of materials, but also at energy efficiency. This includes issues like insulation, solar panels, the reflection of daylight, and airtightness, for example. Aspects whereby a lot of sustainable gains can be achieved in product choice.

For more information visit: www.tatasteeleurope.com


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+44 151 433 3007


FIRE SAFETY

FIRE RESISTANCE OF LIGHT STEEL FRAMING

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MARK LAWSON AND ANDREW WAY OF THE STEEL CONSTRUCTION INSTITUTE (SCI) DISCUSS ISSUES RELATED TO FIRE RESISTANCE OF BUILDINGS AND INTRODUCE UPCOMING NEW SCI GUIDANCE ON THE FIRE RESISTANCE OF LIGHT STEEL FRAMING. Since the Grenfell fire disaster, the question of the fire safety of medium and high-rise residential buildings has been heightened. Clients and checking authorities are understandably concerned about fire safety, particularly for buildings that exceed 18m in height, and Regulations have been introduced to prevent the use of combustible materials in external walls. SCI has been working with members of the Light Steel Forum and other industry experts to update design guidance on the fire resistance of light steel framing which is well established as a construction system for medium-rise residential and mixed-use buildings. Steel has well-known properties at elevated temperatures and comprehensive design data is presented in BS EN 1993-1-2 and formerly in BS 5950-8 (dating from 1990). BS 59508 was the first fire engineering code worldwide and it influenced Eurocode developments. The critical temperature of structural steel beams and columns is taken as 550°C for the design of the fire protection to these members and this critical temperature increases as the proportionate loading (known as the load ratio) on the member reduces. Structural engineers are familiar with the design approach for structural steel but the application of methods for cold formed steel is the subject of the recent work by SCI.

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Light steel framing has gained a market share because one of its benefits is that it is non-combustible and does not add to the fire load of the building, which are in addition to its other benefits. It may be used with joisted floors or increasingly, with composite floor slabs that are supported by the light steel load-bearing walls. Strength Retention of Cold Formed Steel Cold formed steel has slightly reduced strength retention properties at elevated temperatures compared to structural steel H sections and hollow sections because of the influence of local buckling of its thin profile. Nevertheless, the strength reduction factor (SRF) for Class 4 sections at 500°C is still 0.53 of the nominal yield strength. This means that a light steel section can support the reduced loads at the fire limit state up to this slightly lower critical temperature. Light steel framing differs from structural steel in that it is a planar construction system. The 2D walls and floors are protected by layers of Type F or similar fire rated plasterboards. In the last three years, an unprecedented number of loaded fire tests have been performed by light steel framing and plasterboard suppliers to satisfy 60,

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90 and 120-minutes fire resistance requirements for loaded walls and floors. A fire test on a loaded wall is generally performed using the thinnest steel section in a range with the highest sensible load that can be applied by the test house. Temperatures are measured on the flanges and web on the C sections at a number of positions, so that the critical temperatures can be related directly to the load that is applied for the particular wall build-up. This is the so-called ‘load ratio’ method. With this test information, the design of a C section with thicker steel or with another wall height from that tested can be calculated using the method developed by SCI. The only issue that affects the design solution is then the effect of non-uniform heating through the C section for fire on one side, which has two opposing effects: it causes some thermal bowing which adds to bending effects (or P-D effects); but on the beneficial side, the centre of resistance of the C section moves towards the cooler unexposed flange. Generally the two effects can cancel each other for the normal range of wall lengths but the loss in buckling resistance due to thermal bowing is taken into account.


FIRE SAFETY

Design Methodology for Loaded Walls The formula that links the design resistance of a loaded C section in a planar wall at the fire limit state to its buckling resistance in normal conditions is given by:

Nb,Rd,fi =k1 Nb,Rd SRF(θref) Nb,Rd,fi is the axial load that may be supported in fire. Nb,Rd is the buckling resistance of the C section in normal conditions taking account of the effective length for buckling.

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SRF(θref) is the strength reduction factor for Class 4 cold formed steel section. (θref) is the reference steel temperature for a non-uniformly heated section that takes account of non-uniform heating. k1 is a coefficient that takes account of thermal bowing effects and is typically 0.8 for walls supporting joisted floors or 0.9 for walls supporting composite (concrete) floors due to the greater restraint provided by the stiffer floor. The procedure uses measured temperatures in a test and so it is important that this data is obtained as temperature versus time in order to be able to back analyse the test. It is a pre-requisite that a valid test result is obtained for the particular wall buildup for use of the calculation method. The complete design guidance will be presented in a new SCI publication P424, and its accompanying Annexes giving the full design methodologies for light steel loaded walls and floors. External Fires on Loaded Walls The same approach may be applied to external walls but here the question is what is the fire severity of an external fire? At present, there is no agreement on this as logically it should be less severe than a fully developed fire within a compartment in a building. The approaches that have been proposed for an external fire are: • A fully developed ISO fire curve, but with a cut-off temperature of 680°C as permitted by BS EN 1363-2 for external walls. With this, the fire

endurance will be increased relative to an equivalent internal wall, but this tests is rarely performed

Fire Resistance Design of Steel Framed Buildings.

• A fully developed ISO fire curve, but with compliance for an external wall taken as a notional fire resistance of 60 minutes or as a maximum of 30 minutes less than for the internal structure. This is a simple way of recognising that a natural fire occurring outside a building or emanating from windows and radiating back onto the external wall has a lower effect than a fully developed fire internally assuming adequate fire stopping around windows etc

Design Methodology for Loaded Floors Loaded floors differ from loaded walls in that the effects of thermal bowing do not add to the applied moments and the critical temperature is taken as the bottom flange temperature. Also, for floors, the plasterboard ceilings can become detached as they weaken in fire. The design approach for loaded floors is based on a similar approach to walls but a constant coefficient of 0.6 is used and the buckling resistance can take account of the restraint offered by the floor boarding, as follows:

• A fully developed ISO fire curve without any reduction.

Nc,Rd,fi =0.6 Nb,Rd SRF(θexposed)

The external sheathing boards that are used are very robust structurally but do not necessarily possess the inherent insulation characteristics of gypsumbased plasterboard. Furthermore, for buildings more than 18m high (currently for England), non-combustible insulation and sheathing boards are required. Composite Floor Slabs Composite floor slabs can provide up to 120 minutes fire resistance without requiring a fire protected ceiling by virtue of the embedded reinforcing bars in the deck ribs. Guidance on the fire resistance of composite slabs is given in BS EN 1994-1-2 and in the former BS 5950-8, and SCI publication P375 -

However, most joisted floors are designed for serviceability limits of deflection and so their load ratio will be less than 0.3, so that their critical temperature will be similar to that of loaded walls.

For more information visit: www.steel-sci.com IMAGES 01. 02. 03.

Light steel frame construction with metal decking for composite floors Typical application of light steel loaded walls supporting a joisted floor Strength and stiffness reduction factors for steel at elevated temperature

LIGHTSTEELFRAMINGMAGAZINE.CO.UK

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TECHNICAL TALKS

PERFORMANCE IN CONSTRUCTION

DAMAGE TO A STRUCTURE DURING CONSTRUCTION THROUGH MOISTURE OR FIRE LEADS TO CONTRACTUAL DELAYS, EXPENSIVE REMEDIATION WORKS OR EVEN COMPLETE LOSS OF STRUCTURE. A KEY ADVANTAGE OF LIGHT STEEL FRAME WHEN COMPARED TO TIMBER STRUCTURES IS FIRE PERFORMANCE AND PROTECTION FROM WEATHER DURING THE CONSTRUCTION PROCESS.

Construction companies and property developers may find it difficult to arrange insurance cover on potentially high-risk projects unless they can demonstrate good fire safety standards. On larger projects, insurers will normally require compliance with at least the standards set out in the fire prevention on construction sites Joint Code of Practice. Health and Safety Executive (HSE) Document HSG 168 - Fire Safety in Construction, provides excellent advice on the steps to be taken to reduce the risk from fire. The document highlights the three elements required to start a fire – a source of ignition, fuel and oxygen and notes that removing one of the three negates that risk.

Light steel frame structures do not add to the fire load of the building. Constructing in light steel frame has limited combustible materials and therefore reducing the fuel for the fire and limiting risk of damage. This risk is reduced further when concrete or screed on steel deck is used rather than a timber deck. The following should be noted with regards to the performance of a light steel frame structure during construction:

Dimensional Stability Movement with steel is minimal compared to other materials and therefore predictable. Accuracy Manufactured and installed to higher tolerance than traditional methods of construction, meaning other components are likely to fit first time and without the need for adjustment. Non-Combustible No risk of steel contributing to fire load during, or after construction.

Moisture Unaffected by short term exposure to moisture and no shrinkage, greatly reducing costly and unsightly re-work.

For further Information on performance in construction go to: www.lsf-association.co.uk/library/lsfa-specification-and-engineering-guide/performance-in-construction

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LIGHTSTEELFRAMINGMAGAZINE.CO.UK


SCI Support for the Light Steel industry With over 30 years of expertise in the steel industry SCI are able to support the light steel industry in a number of ways. Assessment and Certification Enhance your market share with added assurance for specifiers that products and processes meet current standards and regulations. Light Steel Forum An SCI membership group whose objective is the technical development of light steel construction systems.

T: +44 (0)1344 636525 assessment@steel-sci.com | www.steel-sci.com

Industry Design Standards SCI supports the industry with many technical resources and are involved at Eurocode committee level to improve standards.

PROVENIN HARSHEST CLIMATIC CONDITIONS A

PROVENIN HARSHEST CLIMATIC CONDITIONS ALL OVER THE WORLD THE WORLD

NATURAL & UNIQUE AESTHETIC-LOOKING ROOFS NATURAL & UNIQUE AESTHETIC-LOOKING

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ORIGINAL, BRANDED “MADE IN NEW ZEALAND” PRODUCT - ORIGINAL, LEGENDARY HERITAGE, DURABILITY AND RESISTANCE BRANDED “MADE IN NEW ZEALAND

PROVENIN HARSHEST CLIMATIC CONDITIONS A RESIS

- PROVENIN LEGENDARY HERITAGE, DURABILITY AND SUITABLE FORHARSHEST OFF-SITE CONSTRUCTION, NEWBUILD AND CLIMATIC CONDITIONS ALL OVER THE WORLD REFURBISHMENT PROJECTS THE WORLD

SUITABLE FOR OFF-SITE CONSTRUCTION, NEWB LIGHTWEIGHT AND TO INSTALL THAN NATURAL & UNIQUE AESTHETIC-LOOKING ROOFS NATURAL &QUICKER UNIQUE AESTHETIC-LOOKING ROO TRADITIONAL ROOFING MATERIALS REFURBISHMENT PROJECTS ORIGINAL, BRANDED “MADE IN NEW ZEALAND” PRODUCT - ORIGINAL, LEGENDARY HERITAGE, DURABILITY AND RESISTANCE BRANDED “MADE IN NEW ZEALAND

LIGHTWEIGHT AND QUICKER TO INSTALL THAN - LEGENDARY HERITAGE, DURABILITY AND RESI SUITABLE FOR OFF-SITE CONSTRUCTION, NEWBUILD AND TRADITIONAL ROOFING MATERIALS REFURBISHMENT PROJECTS SUITABLEAND FOR OFF-SITE CONSTRUCTION, NEW LIGHTWEIGHT QUICKER TO INSTALL THAN TRADITIONAL ROOFING MATERIALS REFURBISHMENT PROJECTS

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ORIGINAL, BRANDED “MADE IN NEW ZEALAND” PROVENIN HARSHEST CLIMATIC CONDITIONS ALL PRODUCT OVER SUITABLE FOR OFF-SITE CONSTRUCTION, NEWBUILD AND - LEGENDARY HERITAGE, DURABILITY AND RESISTANCE THE WORLD REFURBISHMENT PROJECTS CLIMATIC CONDITIONS ALL OVER PROVENIN HARSHEST NATURAL & UNIQUE AESTHETIC-LOOKING ROOFS THE WORLD SUITABLE FOR OFF-SITE CONSTRUCTION, NEWBUILD AND LIGHTWEIGHT AND QUICKER TO INSTALL THAN

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www.tilcor.com/uk

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TECHNICAL TALKS

Performance of light steel is assessed through rigorous testing and it should be noted that a tested ‘systems approach’ is preferred rather than a tested product.

PERFORMANCE IN USE

When meeting the Building Regulations steel frame is more than ABLE

A

STRUCTURE – LSF structures, with their well understood section properties are capable of being optimally engineered to ensure highly efficient material use with a reduction in materials of up to 50%. In addition to high strength to weight ratio, LSF systems with widely distributed points of connection, are also ideally suited to design to avoid the risk of disproportionate collapse.

B

FIRE – LSF frames are non-combustible and will not contribute to spread of fire during construction. Fire performance of LSF systems is based on extensive testing. LSF walls and cassette floors are protected using plasterboard for up to two hours. Composite metal deck/ concrete floors have an inherent fire rating, with ratings of upwards of two hours achievable.

L Courtesy of Ayrshire Metals

LIGHT STEEL FRAME STRUCTURES FULLY COMPLY WITH THE REQUIREMENTS OF THE BUILDING REGULATIONS AND LEADING WARRANTY PROVIDERS. PERFORMANCE COVERS STRUCTURAL, FIRE, ACOUSTICS, THERMAL, AIRTIGHTNESS, WEATHER-TIGHTNESS, SHRINKAGE, PROGRAMME AND ACCURACY.

E

THERMAL – as steel is an extremely good conductor of heat, thermal bridging is a key consideration with LSF wall systems. All LSF systems use warm frame principles, whereby insulation is placed outside the frame, keeping the frame warm and eliminating the risk of interstitial condensation. Similar principles are applied at junctions to reduce linear thermal losses and maintain durability. ACOUSTICS – LSF systems rely on isolating the structure of the building from the finishes, thus reducing the amount of acoustic energy transferred between different areas of the structure. Robust and reliable acoustic performance is achieved, using well established and tested principles, further aided by the dimensional accuracy inherent in LSF structures.

For further Information on performance in construction go to: www.lsf-association.co.uk/library/lsfa-specification-and-engineering-guide/performance-in-use

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48

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Profile for Radar Communications

Light Steel Framing Magazine Issue 3 - April 2021  

Light Steel Framing Magazine is the industry publication dedicated to light steel framing technology and contains the latest news, industry...

Light Steel Framing Magazine Issue 3 - April 2021  

Light Steel Framing Magazine is the industry publication dedicated to light steel framing technology and contains the latest news, industry...

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