DAYLIGHTING Magazine issue 8 January/February 2018 by BB2B

Issue 8 January/February 2018

IN THIS ISSUE:

SUN TUBES DELIVERING DAYLIGHT DEEP INTO BUILDINGS • ROOFLIGHTS & NON-FRAGILITY • PASSIVHAUS • DAYLIGHTING IIN MUSEUMS & GALLERIES AND MORE

Buchanon Bus Station

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CONTENTS

REGULARS 05

Editor’s Comment

FEATURES 14

Sun Tubes

Industry News

Ian Bell of Daylight Delivery Systems explains the benefits of tubular daylighting systems

New Projects

Training

Building Biology training courses from the Green Register

Updates from the UK’s influential trade association for rooflight manufacturers

Daylighting Icons

Rooflights & non-fragility

Galleria Vittorio Emanuele II, Milan

John Godley of Hambleside Danelaw explains the difference between ‘non-fragile’ and ‘walkable’ GRP rooflights

NARM Daylight Diary

Twitterings What’s trending on social media?

More about DAYLIGHTING Magazine Forthcoming features and information for advertisers & contributors

Passivhaus Daylighting Case study: Potton Homes’ showroom, St. Neots

Factories & Warehouses Case study: Distribution Centre, Kent

Specifying overhead glazing Richard Burgess of the Lonsdale Metal Company discusses choosing the best glass type

Daylighting in museums & galleries A look at daylighting solutions for museums and galleries in the UK, USA and Latvia

DAYLIGHTING is published by: Bennett & Partners Pure Offices Lake View House Tournament Fields Warwick CV34 6RG United Kingdom TEL: +44 (0)1295 770833 EDITOR Paul Bennett paul@daylightingmag.co.uk Tel: 01295 770833 Mobile: 07900 895110 AD SALES Miki Bennett adsales@bennettand partners.co.uk Tel: 01295 770833 DESIGN/PRODUCTION Jemma Pentney jemma@bennettand partners.co.uk Tel: 01295 770833 WEBSITE www.daylightingmag.co.uk CIRCULATION Daylighting is circulated by email and social media to over 6,000 architects, specifiers, contractors, consultants, building owners and other groups. Full details are available on our website. www.daylightingmag.com

All rights reserved. No part of this publication may be reproduced or transmitted without the consent of the publisher. While every effort is made to ensure the accuracy of content, the publisher does not accept liability for errors. The views expressed by contributors are not necessarily those of the editor or publisher. This publication contains editorial photographs which may have been supplied and paid for by suppliers. Full terms and conditions can be found on our website.

Translucent cladding How Kalwall® translucent cladding is enhancing airport security

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Front Cover: Solatube daylight delivery systems are providing specifiers with creative daylighting solutions across a wide range of sectors

Jan/Feb 2018

EDITOR’S COMMENT

2018: a ‘glass half full’ look at the year ahead On the face of it, 2018 looks like a year of uncertainty for the UK’s construction industry, with Brexit fast approaching and bringing with it concerns about its potential effects on consumer confidence and skills shortages. The recent demise of Carillion has added cause for concern and it’s to be hoped that those subcontractors affected will receive speedy and effective support from the Government’s newly established support task force. However, let’s consider the reasons for maintaining a ‘glass half full’ approach to the year ahead. Of the manufacturers and contractors I’ve spoken with over recent weeks, most have reported full order books and significant ongoing activity across a variety of sectors. This can be attributed to a number of factors: the Government’s ambitious plan for building 300,000 new homes a year; the resilience of our manufacturing and service industries – and ongoing committment to new infrastucture projects, to name a few.

Issue 2 Jan/Feb 2017

DESIGN & TECHNOLOGY FOR BETTER BUILDINGS

Passivhaus DAYLIGHTING & HEALTH PATENT GLAZING NON-FRAGILITY GLAZING INNOVATION AND MORE

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Another bright spot on the horizon was revealed by a recent study by the CITB (Construction Industry Training Board). This revealed that there is a growing interest in construction jobs among young people. So any potentially negative effects of Brexit on the construction labour market may well prove to be shallow and short-lived. There’s positive news in the fight to tackle climate change, too. Donald Trump’s ill-advised rejection of the Paris Climate Accord has mobilised powerful US-wide support for reducing greenhouse gas emmissions, through the formation of the United States Climate Alliance: an organisation whose members represent more than 40% of the population of the United States.

Paul Bennett paul@daylightingmag.co.uk

Other nations are stepping up their support in tackling climate change, too. For example, French President Emmanuel Macron has earned headlines by expressing interest in luring American climate scientists to Europe. So, while there are challenges ahead, there’s also cause for optimism, for economists and environmentalists.

Don’t forget, back issues are always available to read on-line at daylightingmag.co.uk Previous issues of DAYLIGHTING Magazine will be available on-line indefinitely. So you can refer back to old issues whenever you like. It’s also on our ‘to-do’ list to set up a features index, so if you can’t remember in which issue you read that fascinating feature about XYZ, you’ll be able to find it in a moment.

Jan/Feb 2018

INDUSTRY NEWS

VELUX® launches MyDaylight – the world’s first virtual reality app for renovation design that the renovation pays off. “We anticipate it will boost sales revenue throughout 2018 and beyond thanks to new renovation projects triggered by use of the app.” Private capital available for renovation projects across Europe reaches a staggering EUR 30 trillion [Copenhagen Economics, Healthy Homes Barometer 2017], and providing homeowners with the best possible information is key to unlocking this potential. The app enables homeowners to design their own room, visualising the real effect of daylight, with 3600 view and virtual reality options. The new ‘MyDaylight’ app enables homeowners to design their own room or renovation project by easily selecting parameters such as floor dimensions, roof height and ceiling pitch. They can then customise further by adding windows, floor and wall finishes, the room’s location, and more. After approximately ten minutes, they receive a digital simulation which can be viewed in 3600 or virtual reality, and gives a life-like recreation of the room and the changing effects of daylight inside. The app bridges a gap, leading homeowners from imagination to implementation: “Many people who are looking to reshape their home find it difficult moving from imagination to concrete proposals. The app brings homeowners one step closer to the home they have envisioned, as the 3600

Jan/Feb 2018

and virtual reality visualisations make it both tangible and achievable,” says Grant Sneddon, Daylight Expert, VELUX. Fueling the home renovation market digitally The do-it-yourself market is booming, with Europeans spending as much as EUR 377 billion on home improvement in 2016 [European Home Improvement Monitor, 2016]. Meanwhile, the building industry is becoming ever more digital, and with MyDaylight, VELUX is empowering homeowners with a groundbreaking digital tool to inform their home investment decisions. Sneddon continues: “As the market for home improvement is growing and our customers are getting more digital, we see a clear business potential in launching an app, which for the first time will enable homeowners to see just how much daylight can change a home, adding value and ensuring

The future is digital The app is a unique opportunity for homeowners to experiment with different renovation options, and a mobile application means the service is available anywhere, anytime – thereby meeting the growing consumer trend for online customisation, browsing and shopping. “The search for inspiration is truly moving into the online space. With this app we meet our customers where they are. Homeowners can investigate different renovation ideas wherever they are - on the bus, the train or at home,” says Sneddon. The MyDaylight app is free of charge for everyone and available in the Apple and Google Play Stores from today Monday 29 January 2018 in Great Britain, Ireland, Denmark, Austria, Belgium and Slovenia, and on 30 January in Germany.

www.velux.co.uk

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INDUSTRY NEWS

MP visit champions prosperity in UK manufacturing

Thumbs Up in 2018 For New Charity Campaign Fakro GB are aiming high in 2018 and will be making a splash with a new charity campaign ‘Thumbs Up For Fakro’.

Rt Hon Liz Truss MP is pictured with Xtralite founder Bob Tweedy.

The manufacturing sector continues to prosper in various industries across the UK and a revered member of parliament, the Chief Secretary to the Treasury discovered this first hand in a recent visit to the North East of England. The Rt Hon Liz Truss MP made a visit to Xtralite, a rooflight and structural glazing manufacturer based in Blyth, Northumberland and discussed measures the business has taken to ensure its continued growth and prosperity. ‘I am really impressed by the craftsmanship and innovation I’ve seen on display at Xtralite. While the Labour Party in Northumberland spend their time talking down the county, it’s fantastic to see hardworking businesses and their employees defying the critics and giving Northumberland something positive to shout about,” said Liz Truss MP. “By backing free enterprise, investing in infrastructure and giving people the skills they need, we’re supporting the North

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East economy which is so vital to our country’s success.” Over the past 12 months Xtralite has expanded its operations with its Structural Glazing Division moving to new premises and the addition of a further production line for its modular skylights and AOV’s (Automatic Opening Vents). The new premises also includes a dedicated visitor centre. “It was a privilege to welcome Liz to our factory and to discuss the current status and future of manufacturing in the North East, the UK and how we engage with that on a national and global basis,” said Bob Tweedy managing director Xtralite. “It is clear that the prosperity of the manufacturing sector remains high on the political agenda and we look forward to the ongoing success of Xtralite and our fellow manufacturers who are helping to keep Britain a proud manufacturing nation.” Xtralite is a market leader in the rooflight and structural glazing sector. www.xtralite.co.uk

Mobilising their army of customers across the UK the roof window manufacturer’s campaign will be a yearlong effort to raise funds and awareness for two charities – Teenage Cancer Trust and Rainy Day Trust. A brilliant, simple way to do both, just send a photo to thumbsupforfakro@fakrogb. com showing their latest Fakro window installation. Fakro will then make a donation to be split between the two charities. “All our customers need to do is get their phones out, raise a thumb, take a photo and send it and we’ll do the rest,” said Dave Robertson, Commercial Director for Fakro GB. “Teenage Cancer Trust and Rainy Day Trust are two fantastic industry charities and we are delighted to be supporting them both this year. Engaging with our growing number of customers across the UKs building industry seemed like the obvious things to do. So the more photos we receive, the more money we’ll donate, and the wider these amazing charities message will be spread.” @fakrogb #ThumbsUpForFakro www.fakro.co.uk.

Jan/Feb 2018

INDUSTRY NEWS

NARM Survey reveals contractor views on rooflight installation In its role as the voice of the UK’s rooflight industry, NARM, the National Association of Rooflight Manufacturers, is committed to engaging with rooflight specifiers and installers – to encourage best practice and to educate on the advantages of natural daylight in the built environment. As part of their focus on the installer community, NARM recently commissioned a survey of NFRC members (National Federation of Roofing Contractors) to establish a clearer picture of their requirements from a trade association representing rooflighting. This was delivered to NFRC members, via the on-line NFRC newsletter ‘Roofing Times’. An analysis of the results reveals facts which will inform NARM communications with contractors

in the coming months and years. Significantly, of those few contractors who reported that they had encountered rooflight installation issues at some time, all confirmed that these were satisfacorily resolved by the NARM member companies that supplied the rooflights. The survey also revealed that among contractors, the most frequently downloaded Technical Documents from the NARM website, were those relating to non-fragility of rooflights and the differences between ‘walk-on’ specification rooflights (to floor loadings) and those carrying a ‘non-fragile’ classification. The NFRC survey featured a prize draw for a video drone – a popular choice – and the winner of the draw has been notified. Details will be released soon.

A key objective of NARM is to raise awareness among contractors of the role it plays in supporting best practice and making objective technical information freely available. NARM member companies are subject to membership criteria including compliance with appropriate UK Building Regulations. NARM’s website provides a comprhensive source of information for specifiers and installers of rooflights, including a full library of technical documents available for free download. The website also provides an excellent tool for sourcing rooflight suppliers, with detailed company information about members, together with rooflight types that each company supplies www.narm.org.uk

Passivhaus daylighting at Ecobuild 2018 At Ecobuild on 6th to 8th March in London, LAMILUX will showcase Passivhaus certified ways to maximise daylight using beautiful designs. The focus at stand D91 will include daylight solutions for one of the most stringent standards in energy efficiency, used in modern construction. LAMILUX helps architects and planners with a range of leading skylights when designing Passivhaus buildings: The large glass roof construction LAMILUX CI System Glass Architecture

Jan/Feb 2018

PR60energysave and the flatroof window LAMILUX CI System Glass Element FEenergysave. These have been certified by the Passive House Institute in Darmstadt, Germany as a “pha Advanced Component”, the highest Passivhaus efficiency class. The products therefore meet the criteria for one of the most sustainable trends in contemporary construction, in the “skylight” and “sloped glazing” product categories.

the chief energy efficiency standard for new buildings and refurbishments. LAMILUX, a renowned manufacturer of daylight systems, SHEV systems and building control systems, now offers three daylight systems for the most demanding type of energy-efficient construction. www.lamilux.co.uk

Passivhaus certification is regarded internationally as

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Introducing our new

Ridgelight

Self-supporting - no need for a ridge support. Arrives fully assembled, ready to be installed flush. Frameless appearance inside and out. Call our technical design team on 01993 833108 to discuss your size or visit www.therooflightcompany.co.uk

#thebenefitofexperience

NEW PROJECTS 101 Embankment, Salford, Manchester Kawneer’s AA®201 unitised or off-site manufactured curtain walling with curved corners and feature bands clads the first to tenth floors of the Grade A office building and car park development known as 101 Embankment in Salford, Greater Manchester. The installation was by building envelope contractor Prater at the rate of up to 30 of the 1,160 panels a day or a complete floor in five days. The development totals 165,000ft2. www.kawneer.co.uk

Private home, North London Lumen’s Conservation rooflights were supplied to the required specification and size for this stunning kitchen extension, with a black powder coat finish, American ash interior liners, self cleaning highly efficient double glazing units and Lumen’s bespoke lead flashing kit. www.lumenrooflight. co.uk

Jan/Feb 2018

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NEW PROJECTS North Watford Library Xtraliteâ&#x20AC;&#x2122;s X-Span rooflights were specified both as mono pitch and within the atrium area of this building. The X-Span system complies with the BS 6399 system Part 1 (Code of practice for dead and imposed loads), Part 2 (Code of practice for wind loads) and Part 3 (Code of practice for imposed/snow loads) giving a juxtaposition of practicality and aesthetics. The clear glazing permits 42% light transmission. www.xtralite.co.uk

Cardiff Police Station Solatube tubular daylighting systems have been used to deliver daylight to cells at Cardiffâ&#x20AC;&#x2122;s Police Station. In total, 66 cells were lit using a combination of Solatube systems ranging from 250mm up to 530mm in diameter, with the longest systems nearly 24 meters in length. These are the longest daylighting systems of their kind that the company has delivered to date. www.solatube.co.uk

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Jan/Feb 2018

NEW PROJECTS Kelvin Hall, Glasgow Lareine Engineering has completed the refurbishment of rooflights and louvre ventilation on Glasgow’s historic Kelvin Hall, as part of a major refurbishment of this landmark building. One of the largest exhibition centres in Britain, the Kelvin Hall is now a mixed-use arts and sports venue. www.lareineengineering. com

Heron Hall Academy, Enfield, London Kawneer’s GT70 slimline renovation windows as fixed lights and top-hung casements are complemented by AA®100 curtain walling, AA®541 fixed lights and top-hung casement windows and series 190 doors on the redevelopment of this former Middlesex University site in Enfield, north London. www.kawneer.co.uk

Jan/Feb 2018

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ROOFLIGHTS VERTICAL GLAZING NATURAL VENTILATION SMOKE VENTILATION LOUVRE SYSTEMS ACCESS SOLUTIONS

Daylighting & Smoke Ventilation from concept to installation With an experienced in-house design and specification department, plus our own teams of installers around the country, we are able to provide outstanding engineered daylighting and smoke & natural ventilation solutions for virtually any kind of project: new build or refurbishment.

BOOK OUR RIBA CPD SEMINAR

Our ‘concept to installation’ approach allows continuity and close quality control over every stage of every project, to deliver excellence – every time. Call us today to discuss how we can help to bring your next project to life.

T 01506 448140 F 01506 448141 E info@lareineengineering.com www.lareineengineering.com

TUBULAR DAYLIGHTING SYSTEMS

SUN TUBES: Daylight: delivered. It’s possible to provide daylit interiors in places you’d least expect... Ian Bell of Daylight Delivery Systems explains where Tubular Daylighting Systems can really deliver.

Jan/Feb 2018

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TUBULAR DAYLIGHTING SYSTEMS Daylight. We all love it in our homes or our work spaces, but how can we introduce more when there’s not enough, or design it into a building – even deep into a building – in a cost effect and efficient way?

to the inside of the building. They are versatile, offering remarkable design flexibility and can provide architects with innovative and unconventional solutions to deliver light to areas where it was previously thought impossible.

Windows and roof lights offer a solution, but while these traditional methods have many recognised benefits, they can also introduce challenges; shifting light patterns, solar heat gain, and glare are all potential concerns when considering traditional methods to introduce daylight.

There are many things to consider when specifying a tubular daylighting system; light delivery, thermal/acoustic properties, quality, options and accessories, and of course regulatory compliance.

Such methods can also be expensive – particularly if retrofitting – often requiring major structural modifications and multiple trades. But there is another way to illuminate buildings that overcomes these challenges and provide a cost-effective, non-intrusive solution – tubular daylighting systems. Tubular daylighting systems are now becoming a widely accepted building solution. Often called sun tubes, light tunnels or sunpipes, tubular daylighting systems collect daylight from the outside of a building and transfer it via highly reflective tubing

The light delivery journey begins at the point of daylight collection (usually, but not always, on the roof), where tubular daylighting systems use a roof dome or a flat panel to gather daylight. Flat panels are a ‘passive’ solution, gathering only the light that happens across the surface during the day thus they are best reserved for south facing roofs only. Roof domes can gather daylight from all aspects and some have technologies such as lenses and reflectors to actively harvest the most daylight possible during the day – even when the sun is low in the sky during winter months and early morning, late evening.

Tubular daylighting systems collect daylight from the outside of a building and transfer it via highly reflective tubing to the inside of the building. They can provide architects with innovative and unconventional solutions to deliver light to areas where it was previously thought impossible.

Tubular daylighting systems are widely specified for commercial and education sector projects in which natural daylighting can contribute to reduced energy consumption as well as enhanced wellbeing of building occupants.

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Jan/Feb 2018

TUBULAR DAYLIGHTING SYSTEMS A higher reflectivity tube will also offer greater design opportunities because longer tube lengths can be used. In the UK, tubular daylighting systems of over 25 metres in length have been possible with a 99.7% reflectivity of the tube material.

Caption TBA

Once gathered it is the job of the tube material to deliver the most light possible to the room below. The choice of reflective tube material has a significant impact on light delivery. Rigid or flexible tubing is available â&#x20AC;&#x201C; and there are vast differences in light delivery between the two. While this is now widely acknowledged by those in the know, the extent of the difference is still quite astounding. Testing undertaken by the BRE on behalf of Solalighting Limited, distributor of the Solatube rigid tube system, has demonstrated that a rigid tube systems can deliver more than 10 times the light of a flexible tube. That means you would need to use 10 flexible tube systems to match the light output of just one rigid tube system. So rigid tubing is clearly the most efficient, but there can still be significant differences in light delivery capability of rigid tubing. For example, a 99.7% reflective tube material (as used in the BRE testing) is far more efficient than a 98% reflective tube. The difference may not sound that great, but significantly less light delivered after just 20 bounces down

Jan/Feb 2018

the 98% tube than the 99.7% reflective tube. A higher reflectivity tube will also offer greater design opportunities because longer tube lengths can be used. In the UK, tubular daylighting systems of over 25 metres in length have been possible with a 99.7% reflectivity of the tube material. The better quality tubular daylighting systems offer a wide variety of options giving the potential to design the ideal daylighting system for any space. Such options include thermal and acoustic enhancements (up to passive house standards), as well as integrated options such as electric dimmers (ideal for school classrooms, AV suites, cinema rooms, etc). Diffusers spread the light delivered by reflective tubing into the room below and their design ranges from the basic functional to the architectural, as well as robust, tamperproof versions for secure environments. Diffusers are not just for ceilings, they can be used in walls too, and innovative thinking can create a stunning end to the daylight journey. www.solatube.co.uk

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TRAINING

Building Biology Training Series from The Green Register In 2018, The Green Register will be presenting the UK’s first ever half-day series of training on Building Biology...

Buildings can enhance the health (both physical and mental) of the occupants… or they can be seriously bad for our wellbeing. The subject of healthy buildings has been rapidly moving up the agenda in the construction industry recently, and The Green Register is excited to offer the UK’s first ever half-day series of training on Building Biology: how to achieve healthy living environments. The Green Register’s four afternoon technical sessions, designed to fit into the work schedules of busy construction professionals, cover the principles of Building Biology and are delivered by expert trainer Tomas Gartner. Tomas is an architect, a certified Building Biologist IBN and founding Director of the Building Biology Association (the UK Partner of the German Institute for Building Biology IBN). He is also a Director of Gale & Snowden Architects and Mechanical Engineers. The highly regarded and internationally recognised IBN Building Biology Consultant Course (run in the UK by the Building Biology Association) is a fantastic way to gain an in depth understanding of all aspects of healthy building design, but some construction professionals may not

Jan/Feb 2018

have the time or resources to be able to attend the full Building Biology course. The Green Register’s new half-day Building Biology Series offers a unique opportunity to learn about Building Biology and the latest thinking on healthy, sustainable and holistic building practices from one of the experts in the field. The Sessions • 10 May 2018 - Building Biology 1: Just another Ecolabel? • 17 May 2018 - Building Biology 2: Compliant Material Specification • 24 May 2018 - Building Biology 3: Compliant Services Design • 31 May 2018 - Building Biology 4: Testing Methods and the SBM2015 The Venue The Create Centre, Smeaton Road, Bristol BS1 6XN Costs Green Register members: £65 per session / discounted rate of £225 for all four sessions Non-members: £99 per session / discounted rate of £350 for all four sessions Attendance will make you eligible for Green Register membership www.greenregister.org.uk

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MBS Software Waldram Tools v4.0 - Daylighting Software MBS has been developing software for the last 25 years. Delivering applications that are powerful yet easy to use. Waldram Tools is an excellent package for meeting the requirements for daylight & sunlight testing laid out in the BRE Guide. It is however much more than that, with many tools to aid design, such as facade analysis including solar radiation to test for overheating. Ray traced Daylight and sunlight calculations using Radiance, which allows more complicated situations to be assessed. Transient shadows can be assessed over a range of times with the shadow cast matching the colour of the proposed building The potential for solar glare can be assessed in an easy to read rendered image

The software produces:

· · · · · · · · ·

BRE Compliance tests VSC,APSH,NSL,Sunlight to Amenity and Average Daylight Factor Rights of Light contours Complete excel exports Automated transient shadow images Climate based daylight calculations Spatial Daylight Autonomy Annual Sunlight Exposure BREEAM calculations Solar Glare Solar Radiation Facade analysis

Available for AutoCAD 2014-2018* * Alternative product: "Daylight for Sketchup"

For more information contact us on:

Tel: 020 3176 0984

email: info@surveymbs.com

www.surveymbs.com

PASSIVHAUS DAYLIGHTING – advertorial

Case Study: Passivhaus Certified Glass Roof, Potton Homes Showroom, St Neots The Potton Self Build Show Centre in St Neots, Cambridgeshire, hosts LAMILUX’s CI System Glass Architecture PR 60energysave.

compliments the modern show home

Certified to Passivhaus standards, the roof glazing system was designed and installed by Lamilux to compliment one of the five stunning show homes. The Self Build Show Centre was created to inspire self-builders with the design of their project and is used to showcase a series of high end products. The development of the new show house required a product that could have a wall abutment both to the side, and head of the roof glazing. The aluminium extruded mullion/transom glazing bar system allows for designs of any shape, inclination and size and can be supplied in any RAL colour. Only high end products are showcased within the self-build show center, therefore the PR 60energysave, which holds energy saving qualities and flexibility in its design was installed. LAMILUX glass roof structure in the highest class of energy efficiency The Lamilux PR 60energysave holds certification for the highest Passivhaus efficiency class - phA component. With a Ucwi (U-value for installed system) of <= 1.00 W/m²K and a glazing sound insulation values of 38dB, the system utilises warm edge triple layer glazing with SuperSpacer, as standard.

injecting panache, elegance and of course natural daylight. This project is among many Passivhaus rooflights installed by Lamilux, the first UK rooflighting business to specialise in Passivhaus projects.

The high end glazing system

www.lamilux.co.uk

Jan/Feb 2018

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Passivhaus Certified rooflights Lamilux U.K. Ltd is the UK’s first supplier of Passivhaus certified rooflights • UK expertise, plus Europe’s finest rooflights • From modular rooflights to glass roofs • BIM ready solutions • Complete design to installation service • phA Advanced components for designs of any shape, inclination and size.

Passivhaus Glass Roof, University of Leicester Centre for Medicine

See us in the Passivhaus Trust Pavilion

Lamilux U.K. Limited. www.lamilux.co.uk or call us on 01284 749051

ROOFLIGHTS & NON-FRAGILITY

‘Non-fragile’ & ‘walkable’ GRP rooflights: be aware of the difference Defining non-fragility: by John Godley, Technical Manager at Hambleside Danelaw The formation of The Advisory Committee for Roof Safety was a landmark decision within the roofing sector.

by extensive testing for all failure modes can the tester gain a clear understanding of how and where the assembly will fail.

It led to the publication of the first definitive industry-wide guidance document covering the issue of the non-fragility of roof assemblies rather than individual components. That document was ACR(M)0001:2000 ‘Test for Fragility of Roofing Assemblies’ (commonly referred to as THE RED BOOK) which is now in its fifth version. It provides a comprehensive understanding and a clear and prescriptive explanation of every aspect of the tests required to establish whether a roof assembly can be described as non-fragile. It also helps the tester to classify the type of non-fragility achieved.

There is even more help and guidance in the National Association of Rooflight Manufacturers (NARM) Technical Document NTD03, Application of ACR001 ‘Test for Non-Fragility of Large Element Roofing Assemblies to GRP Profiled Rooflight Sheeting’. Moreover, any reputable rooflight manufacturer should be able to provide information on the expected performance of their products within any given roofing assembly.

It prescribes how a roof assembly should be tested to resist the impact of a person falling onto it and then supporting their weight, clarifying how the assembly is then defined as ‘fragile’ or ‘non-fragile’, classified A to C. It is critically important to understand that the test is no longer of any single product, but all the elements required of a correctly installed roof. The impact testing is a ‘soft-body’ test specifically devised to concentrate a destructive load over a small area, at the most critical, worst case scenario locations of that assembly. Only

Jan/Feb 2018

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ROOFLIGHTS & NON-FRAGILITY

The impact testing is a ‘soft-body’ test specifically devised to concentrate a destructive load over a small area, at the most critical, worst case scenario locations of that assembly.

Given the free availability of such detailed information, one could be forgiven for expecting any reputable roofing company to have a clear understanding of the aims – and the limitations - of non-fragility requirements. Despite this, rooflight manufacturers regularly receive enquiries for rooflights described as ‘walkable’ or ‘man-safe’, or requests for non-fragility ‘guarantees’ for individual components such as rooflights whose installation is outside the control of the installer of the roof assembly. It is time for some clarification. Non- fragile rooflights Two factors impact on the period of non-fragility of roof assemblies: • Quality and durability of the

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Rooflight • Quality of installation workmanship of manufacturers the entire roof regularly receive enquiries for Manufacturers can only indicate the expected period of non-fragility based rooflights described on extensive testing, and cannot offer as ‘walkable’ or performance guarantees on other associated products not manufactured ‘man-safe’, or or installed by them. Further guidance requests for nonis available from NARM and The Metal fragility ‘guarantees’ Cladding and Roofing Manufacturers Association (MCRMA). for individual Imported GRP rooflight sheets claiming components such as to be manufactured to UK recognised rooflights. It is time weights and specifications cannot for some clarification. be assumed to carry the same level individual components

of surface protection, fire resistance or achieve the same non-fragility ratings for the same periods if not fully compliant with the UK Annex to BS EN1013 and tested to ACR requirements.

Jan/Feb 2018

ROOFLIGHTS & NON-FRAGILITY ‘Walkable’ and ‘Walk-On’ Rooflights Some built-up cladding systems incorporate a 0.70mm thick steel liner sheet in a profile depth usually exceeding 30mm. This liner assembly should be tested to achieve a nonfragile classification as a single skin only, to allow installers to safely traverse it while installing the cladding system – this is often referred to as a ‘walkable liner’. Profiled rooflight sheets in such an assembly, even though tested and demonstrated to achieve the required non-fragile classification, are still not ‘walkable’ and should never be subjected to foot traffic, deliberate or inadvertent, regardless of specification unless specifically designed and approved for this purpose. Irrespective of the strength of a rooflight and the non-fragility classification, foot traffic could damage the structural integrity

or surface protection of the product and consequently impact upon its longterm performance. Rooflights designed to be walked on, and for use where they will be deliberately walked on, should be designed for much greater loads. The only suitable material for this is glass, and subject to specific considerations for each application. Polycarbonate and GRP should never be considered suitable materials where there is a requirement to accommodate foot traffic.

www.hambleside-danelaw.co.uk www.roofworkadvice.info

IF THE WORST HAPPENS ON THE ROOF, NON-FRAGILITY CAN SAVE LIVES. IF YOU FALL ON A ZENON ROOFLIGHT, IT MAKES SURE YOU STAY THERE.

The terms ‘fragile’ and ‘non-fragile’ describe the tested, proven ability of a finished roof assembly to resist the impact of a person falling on it and then crucially, to support their weight. The whole ZENON rooflight range has been rigorously tested. A correctly installed new roof structure that includes in plane ZENON rooflights passes the non-fragility test, and ZENON Evolution significantly outperformed it resisting impact after impact. So, when you specify ZENON you can have total peace of mind.

LOW CAR B ON G R P DAYLIG H T S OLUTI O N S

DISCOVER MORE: WWW.HAMBLESIDE-DANELAW.CO.UK/ZENON-ROOFLIGHTS T: 01327 701 920 E: SALES@HAMBLESIDE-DANELAW.CO.UK

daylight diary 2018 marks a significant year for NARM, the National Association of Rooflight Manufacturers 2018 is the twentieth anniversary of the formation of NARM. This year we will be continuing to focus on our mission to support the application of best practice in the provision of natural light in built environments, with a program of activities to celebrate and build on our twenty years of service to the construction industry. Support for specifiers Providing objective and up-to-date information for rooflight specifiers has always been at the core of our activities. This year, we plan to enhance our information services, with: • New and updated technical information documents Our NARM NTD documents form a freely available library drawing on research and technical expertise carried out by ourselves with input from some of the UK’s leading experts in rooflighting design and application. Look out for new publication announcements throughout 2108.

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2018

to be carried out by NARM member company personnel. In addition to this we will also be publishing further RIBA approved CPD materials. Support for contractors & installers Through our work with the NFRC, the National Federation of Roofing Contractors, we aim to make installation and roof safety advice and support more readily available to those who need it. We will be building on knowledge gained from our recent survey of roofing contractors in this respect.

1998 – 2018

Support for rooflght manufacturers NARM members enjoy the benefit of better understanding of industry issues and competitors, as well as early access to technical and legislative information pertaining to rooflights. The authortative endorsement of the UK’s only rooflighting trade associaton is another signficant advantage to member companies. If you are interested in becoming a NARM member, please use the link below.

• Website updates This year we will be carrying out a series of enhancements to our website, designed to make specifier information easier to source and download.

View our CPD Seminar on YouTube

• New RIBA CPD materials Following on from the success of our on-line RIBA approved CPD seminar, this year specifiers can book presentations at their own premises,

Are you a RIBA member? Book our CPD Seminar now for double points

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20th ANNIVERSARY

Download NARM Technical Documents at www.narm.org.uk

Become a NARM member

Jan/Feb 2018

FACTORIES & WAREHOUSES – advertorial

GRP barrel vault rooflights for LIDL Distribution Centre Over 2600 linear metres of Filon’s Monarch F GRP barrel vault rooflights were installed during the refurbishment of this major distribution hub in Belvedere, Kent The triple skin construction of these rooflights provides a U value of 1.7 W/ m2K – meeting the stringent thermal performance requirements for the building.

Staffordshire-based Ascot Property Maintenance Ltd, installed over 2600 linear metres of Filon’s Monarch F 1200mm wide triple skin barrel vault rooflights at this

performance requirements for the building.

Regional Distribution Centre serving South-East England.

On one section of the roof the barrel vaults were supplied in opaque grey GRP, with a white internal finish, to maintain the correct conditions for ambient storage of chocolate products.

The installation was part of a major refurbishment in which Ascot Property Maintenance also replaced over 10,000m2 of the aluminium roof.

The longest rooflights installed on this huge curved roof are over 118m long: among the longest uninterrupted runs ever supplied by Filon Products.

The rooflights were specified with a CEDR24E outer skin, providing a class B non-fragility rating for an expected period of 25 years.

Darren Fletcher of Ascot Property Maintenance said: “We have a long and successful relationship with Filon, having installed their rooflights and sheets on all kinds of buildings, including other LIDL distribution centres.”

The triple skin construction of these rooflights provides a U value of 1.7 W/ m2K – meeting the stringent thermal

Jan/Feb 2018

www.filon.co.uk

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Innovative daylighting solutions for profiled fibre cement or metal roofs & cladding

TRIPLE SKIN: U-VALUES AS LOW AS 1.0/m2K GRP: EXCELLENT LIGHT DIFFUSION PROPERTIES

FIRE PERFORMANCE: FULLY COMPLIANT WITH PART B OUT-OF-PLANE DESIGN: MINIMISES ACCIDENTS

Low pitch or curved roof? Think Monarch F rooflights. Filon Monarch F factory-assembled GRP barrel vault rooflights provide the perfect solution for delivering high levels of diffused natural daylight to metal shed type buildings like factories, warehouses and large retail stores These tough and durable rooflights are fabricated from high quality Filon GRP sheets which are robust, shatter resistant and unaffected by extremes of temperature. Long-term surface protection is provided by a UV absorbing film that is applied to the weather surface during manufacture. Monarch F rooflights are manufactured using Filonâ&#x20AC;&#x2122;s DR24 lightweight, double reinforced sheet, offering high impact resistance with Class B non-fragility expected for 25 years. Designed to project above the plane of the roof, Monarch F rooflights also meet one of the primary recommendations of the HSE, to reduce the risk of persons falling through the rooflight.

For details, please call us on 01543 687300 or visit www.filon.co.uk

This LIDL Distribution Centre in Belvedere, Kent, features Filon Monarch F rooflights.

Filon Products Ltd, Unit 3 Ring Road, Zone 2, Burntwood Business Park, Burntwood, Staffs WS7 3JQ

OVERHEAD GLAZING

Choosing the best glass type for overhead glazing With the myriad of glass types available now, it is often confusing what to choose in terms of safety, thermal and solar performance and balancing cost with the benefits on offer. Richard Burgess, Managing Director of patent glazing and roof light manufacturer Lonsdale Metal Company Ltd shares his experience of thirty years in the industry.

SAFETY Above all, safety is the critical factor in overhead glazing and the table below summarises what type of glass complies with current Building Regulations at time of writing. From time to time, it is desirable to use Wired Glass in double glazed combinations. However, there is a high risk of breakage due to thermal stress and advice should be sort from the sealed unit manufacturer. It is not recommended to use toughened glass in single glazing or to the inner pane of double glazed units over swimming pools, food & beverage preparation units or any areas where the small broken pieces

Jan/Feb 2018

characteristic to this glass type, could cause subsequent injury due to contamination. In these situations laminated glass or polycarbonate would be the best choices. DOUBLE GLAZING More or less without exception, the outer pane of a double glazed unit should be toughened glass. The inner pane may be toughened or laminated depending upon location and height above ground. Generally two sheets of toughened glass provide the most economical solution for domestic projects where the roof light is no more than 5m above floor level. If the height exceeds this, then laminated glass should be used for the inner pane.

More or less without exception, the outer pane of a double glazed unit should be toughened glass. The inner pane may be toughened or laminated depending upon location and height above ground.

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OVERHEAD GLAZING

When it comes to performance, the following are features to consider: Low-e coating – offers improved thermal efficiency retaining more heat within the building. There are to type available standard ‘hard’ coat finish or the more popular ‘soft’ coat which offers a typical centre pane uvalue of 1.2W/m2 when combined with an argon filled cavity. Tinted anti-sun glass – body tinted toughened glass can be used as the outer pane combined with a laminated low-e softcoat glass to give the added benefit of reducing solar heat gain in the summer months at reasonable cost. This is most commonly used in blue, but green, grey and bronze colours are also available. Typically this provides a 50% reduction in solar transfer and 50% light transmission. Neutral solar control glass – has a special coating that provided improved solar control and appear more neutral in colour albeit with a slight grey/ green tint. This is often described as 70/30 meaning it offers a 70% light transmission, but only 30% of the sun’s heat enters the building.

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TRIPLE GLAZING All of the above glass type can be combined in a triple glazed units achieving both improved sound insulation and U-values as low as 0.60W/m2.K Consideration however, must be given to the additional weight and handling during installation. LARGE PANE ROOFLIGHTS The most economic glass tends to be 4-6mm thick which rarely can be installed wider than 1000mm, hence most domestic roof lantern and conservatory installation featuring glazing bars every 600 to 900mm. However, with the current trend for flat rooflights, single pane rooflights can be installed up to 3m x 6m in one pane of glass. This calls for specialist manufacturing and installation by experienced companies with the necessary handling equipment and expertise. Much thicker toughened & laminated glass is required so as not to deflect and care must be taken to ensure compliance with building regulations and local, design wind & snow loads. www.lonsdalemetal.co.uk

Jan/Feb 2018

MUSEUMS & GALLERIES

The art of daylighting: natural light in museums & galleries Museums and galleries present designers of daylighting solutions with specific challenges. In addition to meeting requirements for light transmission, water-tightness and compliance with thermal and fire performance regulations, designers must also the consider the risk of damage to light sensitive exhibits and heat build-up which may result in discomfort to visitors. Aesthetic considerations too, are often a priority, particularly in heritage buildings which often house museum and art gallery exhibitions. The images in this article show how designers and manufacturers have met these and other challenges in three very different applications.

Cast Courts, Victoria & Albert Museum, London Over 700m² of new roof glazing has recently been installed at the Cast Courts gallery at London’s Victoria & Albert Museum, as part of a major refurbishment project by main contractor Coniston. A survey had revealed that the existing tiered vaulted roof was single glazed and many panes had cracked. There was significant heat build-up in the roof area contributing to the problem and the roof had started to fail. The installation contractor, Roofglaze, was called upon to provide design and installation expertise to maintain the integrity of this historic building.

apex, with vertical glazed infills. The whole structure was fabricated using Lonsdale’s Spangard, which is a selfsupporting rooflight system. All sloped surfaces on the new roof glazing were specified as double glazed, hermetically-sealed units with high performance 6mm solar controlled toughened outer glazing panes and 6.8mm inner panes. The vertical glazing was specified as 4mm thick clear toughened soft coat Low-E glass. The glazing bars and aluminium press work have all been polyester powder coated in Iron Grey (RAL 7011), providing an appropriate finish with long-term weatherability.

The design team put forward a scheme using an aluminium framed, thermally enhanced patent glazing system by The Lonsdale Metal Company – selected to replicate the existing barrel vault layout of the roof glazing.

The box rafter construction of the Spangard system allows invisible fixings and a low-profile appearance that is important in refurbishment applications like this.

The five-tiered barrel vault layout features a dual-pitch lantern at the

www.lonsdalemetal.co.uk

Jan/Feb 2018

www.roofglaze.co.uk

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MUSEUMS & GALLERIES

The five-tiered barrel vault layout features a dualpitch lantern at the apex, with vertical glazed infills.

www.daylightingmag.co.uk

Jan/Feb 2018

MUSEUMS & GALLERIES

The Broad Museum, Los Angeles, California Guthrie Douglas’ TESS™ 660 systems were installed by Hunter Douglas Architectural USA on the spectacular vaulted rooflights of the Broad Museum in downtown Los Angeles. The recently opened Broad Museum of Contemporary Arts takes its name from its founders, philanthropists Eli and Edythe Broad. The museum houses the Broad Collection of over 2,000 pieces spanning five decades from post 2nd World War to the present.The Collection is exquisitely encapsulated in Diller Scofido + Renfro’s ‘Veil and Vault’ design which creates beautiful and unusual lighting effects across the exhibition space, generating different atmospheres throughout the galleries as the day draws out. In order to control the ambient light levels, and give the museum the ability to block out the light entirely when required, each of the uniquely shaped rooflights was fitted with a Guthrie Douglas’ TESS™ 660 tensioned blackout shade. The shading supplier for the Broad

Jan/Feb 2018

Museum project, Hunter Douglas Architectural USA, proposed the TESS™ 660 for its unique ability to provide blackout in almost any context. Tom Roberson, general manager of HD Architectural Specialty division, said ‘Architects appreciate the 660 for its discrete design and the way it blends in with the glazing surround. Shading engineers value its reliability and efficiency, with just a single motor and the ability to fit it inside and out. With its inconspicuous design the TESS™ 660 fits neatly over the sloped external rooflights of the Broad Museum. To cover the entire roof Hunter Douglas Architectural supplied over 350 TESS™ 660 systems in a wide range of sizes and were supported for the 7 week installation on site by Guthrie Douglas technicians from the UK. The shades were connected to a single wireless network that covers the roof allowing the owners to close them quickly and easily from inside the building as part of the Building Management system. www.guthriedouglas.com

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MUSEUMS & GALLERIES

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Jan/Feb 2018

MUSEUMS & GALLERIES

The Latvian Museum of Art, Riga, Latvia The Latvian Museum of Art in Riga houses over 52,000 pieces in a historic building originally designed by the German architect Wilhelm Neumann. The Museum has recently undergone an extensive renovation, including the conversion of the huge attic space into a new multi-purpose exhibition and events area. The floor to ceiling sloped windows in the newly converted attic space flood the room with light and provide stunning views of the city. However, for some exhibitions, the light level must be regulated to protect the artwork whilst providing a pleasant viewing environment. For others, the light must be blocked completely.

To achieve this adaptability, we collaborated with Multisell Sistemas to design a solution that would allow both a blackout and a translucent fabric to be applied to each window. Using compact TESSâ&#x201E;˘ 660 technology, dual fabric guides were installed onto the slim glazing mullions, and motorised fabric barrels were integrated into the ceiling and flooring, with one fabric operating top down and another from bottom to top when required. Both fabrics are kept completely flat using a torsion spring concealed in the barrel, and held in the guides with a zip for strength and reliability. The end result is a multipurpose exhibition and event space with variable, precise light control at the touch of a button. www.guthriedouglas.com

Jan/Feb 2018

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LET LOOSE WITH GLASS

Natural light is the ultimate building material â&#x20AC;&#x201C; providing warmth, energy, even soul. Our tensioned shading systems filter light to control heat and glare, giving you the freedom to specify glass roofs without limits. DESIGN SOMETHING EXTRAORDINARY.

01926 310850 solar@guthriedouglas.com www.guthriedouglas.com

TRANSLUCENT CLADDING – advertorial

Safety and security solutions for Airports Airports are seen as high-value, high-impact targets with symbolic value and news-grabbing headlines. More than ever before, transport security in general and airport security in particular have become an important part of Government’s long-term counter-terrorist programme. Gideon Sykes explains how Kalwall translucent cladding is playing a part in improving airport security. Airports are seen as high-value, highimpact targets with symbolic value and news-grabbing headlines. More than ever before, transport security in general and airport security in particular have become an important part of Government’s long-term counter-terrorist programme.

Kalwall is ideal for security sensitive projects not only because is it FM (Factory Mutual) approved but also, due to its unique shatterproof

Airport operators do all they can to mitigate threats but most analysts agree that it is all but impossible to make any building totally secure. Apart from the initial blast itself, flying debris can cause huge amounts of additional damage to people and property. A report by the New York Times in 2008 reported that the bomb which exploded previously at LaGuardia “shattered plate glass windows 30 feet high, spraying glass shards like shrapnel, and hurled metal from shattered baggage carousels and coinoperated lockers.” This is one of the reasons why Kalwall® translucent cladding is increasingly being specified for public sector projects and Airports. A good example is at Glasgow Airport where, following the attack in 2007, Kalwall was chosen as the superior design material for cladding the front façade, replacing the original glass elevation.

Jan/Feb 2018

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TRANSLUCENT CLADDING – advertorial

characteristic, any blast is mitigated and, unlike glass, splintering and serious injury to the public are greatly reduced. In addition, Kalwall offers complete line-of-sight protection, maintaining privacy for building occupants while bathing the interior with diffused daylighting, regardless of the weather. Apart from providing visual protection, its inherent strength and heavy duty impact resistance also make it ideal for secure locations. This means that access through walls or rooflights can be denied while fire and most chemicals will not affect the surface. These are the reasons why it has recently been installed at Gatwick Airport’s South Terminal Pier 1 which runs alongside the baggage system and gates. Glasgow Airport

At Glasgow Airport, following the attack in 2007, Kalwall was chosen as the superior design material for cladding the front façade.

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Jan/Feb 2018

TRANSLUCENT CLADDING – advertorial

In the USA, Kalwall is also accepted as one of the core materials for the construction of secure locations. It can be configured to exceed Large Missile D hurricane compliance for wind-borne debris protection making it suitable for facilities needing enhanced protection or serving critical national defense functions. It can even be manufactured for blast resistance and is compliant with ASIAD, DoD, GSA anti-terrorism, ATFP and UFC military guidelines.

Additional benefits In addition to the security aspect, Kalwall offers several other advantages. For example, the system eliminates shadows and glare and the stark contrasts of light and shade. Even on overcast days, the building’s interior is bathed with natural daylight. This means less artificial lighting and, because Kalwall is highly insulating (up to a ‘U’ value of 0.28W/m²K, the equivalent of a cavity filled sold wall), energy costs are reduced improving BREEAM ratings. Being semi-

Raleigh-Durham Airport, North Carolina

Jan/Feb 2018

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TRANSLUCENT CLADDING – advertorial

South Bend Regional Airport, Indiana Seattle-Tacoma International Airport

translucent, it offers the big advantage of privacy with elevations which appear crisp and simple. When illuminated at night, the building emits an inviting and welcoming glow. Kalwall avoids the major causes of degradation in commercial fiberglass reinforced polyester materials, polycarbonates and other thermoplastics which result from ultra-violet radiation, heat, thermal shock and weathering erosion. These conditions may result in the decomposition, colour change, cracking and crazing, loss of light transmission and ‘fibre-bloom’ of some products, but not with Kalwall. www.structura-uk.com

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Jan/Feb 2018

DAYLIGHTING ICONS The biggest: the best: the most awe-inspiring; the most outrageous; the most influential... In this regular feature we indulge ourselves and our readers with images of daylighting projects throughout the years that simply deserve a double page photograph...

Galleria Vittorio Emanulele II, Milan The Galleria Vittorio Emanuele II is a covered double arcade formed of two glass-vaulted arcades at right angles intersecting in an octagon; it is prominently sited on the northern side of the Piazza del Duomo in Milan, and connects to the Piazza della Scala. Named after Vittorio Emanuele II, the first king of united Italy, it was originally designed in 1861 and built by Giuseppe Mengoni between 1865 and 1877. The central octagonal space is topped with a glass dome. The Milanese Galleria was larger in scale than its predecessors and was an important step in the evolution of the modern glazed and enclosed shopping mall, of which it was the direct progenitor. It has inspired the use of the term galleria for many other shopping arcades and malls.

Jan/Feb 2018

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DAYLIGHTING ICONS

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Jan/Feb 2018

@Daylighting_Mag

Twitterings Follow us for regular updates between issues... in the meantime, more highlights...

Jan/Feb 2018

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DAYLIGHTING MAGAZINE

Stay up to date with DAYLIGHTING Magazine! Throughout 2018 we will be running features on just about every daylighting-related topic you can think of – and some you may not have... this year we’ll also be introducing a wider range of opportunities for advertisers, including low cost product advertorials and a product directory.

Editorial Programme REGULAR FEATURES: Industry News & Comment, Technical Focus, Daylight & Energy Saving, Standards MARCH / APRIL • Vertical glazing • Daylighting in Education • Translucent GRP • Appropriate internal light levels • Daylight & Ventilation

NOVEMBER / DECEMBER • Daylighting, Health & Wellbeing • Daylighting in Factories & Warehouses • Lighting Controls • Translucent Cladding • Roof Windows For further details download our media pack

MAY / JUNE • Tensile Membrane Structures • Glass Rooflights • Daylighting in the Workplace • BIM • Climate-based Daylight Modelling JULY / AUGUST • Domestic Daylighting • Controlling Heat & Glare • Daylight in Agriculture & Horticulture • Glass Facades

MEDIA INFORMATION 2018

THE BI-MONTHLY DIGITAL MAGAZINE FOR SPECIFIERS & CONSTRUCTION PROFESSIONALS

SEPTEMBER / OCTOBER • Daylight for Dramatic Effect • Daylighting in the Retail Sector • Refurbishment • Modular Rooflights • Daylight Harvesting

@Daylighting_Mag

DAYLIGHTING is published by: Bennett & Partners Pure Offices Lake View House Tournament Fields Warwick CV34 6RG United Kingdom TEL: +44 (0)1295 770833 EDITOR Paul Bennett paul@daylightingmag.co.uk Tel: 01295 770833 Mobile: 07900 895110 AD SALES Miki Bennett adsales@bennettand partners.co.uk Tel: 01295 770833 DESIGN/PRODUCTION Jemma Pentney jemma@bennettand partners.co.uk Tel: 01295 770833 WEBSITE www.daylightingmag.co.uk CIRCULATION Daylighting is available by email, free of charge to subscribers. Our database currently numbers over 6,000 UK architects, specifiers, contractors, consultants and roofing professionals. Full details are available on our website. www.daylightingmag.com

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Jan/Feb 2018

20th ANNIVERSARY

1998 â&#x20AC;&#x201C; 2018

Shaping the future of daylighting for over twenty years.

NARM, the National Association of Rooflight Manufacturers,

is the influential trade association representing the UKâ&#x20AC;&#x2122;s rooflight industry. We are closely involved in developing and implementing legislation affecting UK rooflighting. Choosing rooflights from a NARM member company is the simple and certain way to ensure adherence to standards and legislation. You can also gain access to a wealth of free and objective specification information on our website. BOOK OUR CPD SEMINAR