DAYLIGHTING Magazine issue 9 March/April 2018

Issue 9 March/April 2018

IN THIS ISSUE: DAYLIGHTING & VENTILATION IN THE

RETAIL SECTOR • DAYLIGHTING IN EDUCATION • LIGHT TRANSMISSION: FACTORS TO CONSIDER • ROOF SAFETY • TRANSLUCENT CLADDING AND MORE

CONTENTS

REGULARS 05

Editor’s Comment

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Industry News

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New Projects

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

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Daylighting Icons Apple Michigan Avenue, Chicago

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Twitterings What’s trending on social media?

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FEATURES

DAYLIGHTING is published by: Bennett & Partners Pure Offices Lake View House Tournament Fields Warwick CV34 6RG United Kingdom TEL: +44 (0)1295 770833

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Daylighting in Education Imma Boada, Specification Manager, Kingspan Light + Air, discusses the role of daylighting in educational buildings

EDITOR Paul Bennett paul@daylightingmag.co.uk Tel: 01295 770833 Mobile: 07900 895110

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Retail Sector Feature David Mowatt of Lareine Engineering, looks at daylighting & ventilation in large shopping malls 20 Case Study: Retail Centre, Northamptonshire

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Technical - Light Transmission John Godley, Technical Manager at Hambleside Danelaw, explains the 5 factors you should consider when specifying rooflights

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Roof safety Case Study: Safer replacement of profiled rooflights at a London Warehouse, using Filon’s Fixsafe system

More about DAYLIGHTING Magazine

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Forthcoming features and information for advertisers & contributors

Kalwall® translucent cladding is the architectural focus of a new development of Benenden Hospital in Cranbrook, Kent.

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Translucent Cladding

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.

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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.

Mar/Apr 2018

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EDITOR’S COMMENT

The best things in life are free... so let’s hear it for daylight.

This year in the UK, the Vernal Equinox took place on Tuesday, March 20, officially marking the beginning of spring, despite the cold temperatures and snow showers that continued into late March.

With one of the coldest winters in recent memory now behind us, I’m sure I’m not alone in welcoming the prospect of longer, warmer days and more daylight.

As I write this in March, the sun is rising at around 06.15am and setting just after 6pm, giving us a total daylight window of just under 12 hours.

Over the next three months, the days will get longer, with the longest day, the Summer Solstice, on June 21st.

On that day we can enjoy a glorious 16 hours and 38 minutes of daytime.

In practical terms relating to our homes, workplaces and public buildings: that’s a whole lot of free energy!

Artificial lighting has been calculated to account for nearly

20% of global energy usage, as well as the resulting emissions.

So the more we can utilise natural daylight in the built environment, the better.

This raises a point that I have often been heard to ‘bang on’ about: the fact that so much mass media coverage and discussion about renewable energy and tackling climate change, makes so little reference to what I see as the purest of renewable energy - daylight itself.

Daylight is a free and unlimited resource that when harnessed through effective daylighting design, can bring about massive reductions in energy usage and the resulting costs and emissions.

Its also a vital contributor to human health and wellbeing.

So, come on, ‘green lobby’! Let’s hear more about daylighting in the mass media. It’s about time...

Paul Bennett paul@daylightingmag.co.uk

The team at DAYLIGHTING Magazine extends deepest sympathies to those affected by the tragic fire at the Winter Cherry complex mall in Kemerovo, Siberia.

Our thoughts go out to the many who have lost loved ones in this terrible disaster, news of which was received as this issue was finalised.

Issue 6 September/October 2017

DESIGN & TECHNOLOGY FOR BETTER BUILDINGS

Issue 4 May/Jun 2017

DESIGN & TECHNOLOGY FOR BETTER BUILDINGS

IN THIS ISSUE:

Daylighting for dramatic effect RETAIL SECTOR REFURBISHMENT & ENERGY SAVING MODULAR ROOFLIGHTS AND MORE

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.

IN THIS ISSUE:

Daylighting at work CLIMATE BASED DAYLIGHT MODELLING BIM GLASS ROOFLIGHTS DAYLIGHTING INNOVATIONS AND MORE

www.daylightingmag.co.uk

Mar/Apr 2018

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INDUSTRY NEWS

Vivalda Group plc moves its HQ from London to Birmingham were all holding us back.

“Having operated a manufacturing centre in Birmingham for some years, we’ve always known that the city boasts a huge pool of talent, which was a major consideration in the relocation of our UK headquarters from London. Our new freehold premises in Nechells also gives us room for expansion into 2018 and beyond. The central position of the new HQ, near to the motorway links also makes life a lot easier from a transport perspective.”

Vivalda Group Managing Director Ben Jayes, at the company’s new Birmingham facility

Vivalda Group plc, the UK’s largest distributor of architectural facades, has confirmed the relocation of its headquarters from London to Birmingham.

The business, which was named as one of the UK’s most inspiring companies by the London Stock Exchange, has a turnover of more than £30m and employs 30 people at its new offices in Nechells.

The company acquired the

28,000sq m site last year and has since been busy renovating 6,000sq m of office space as well as the site’s manufacturing facilities. February 2018 marks the official opening of Vivalda’s new operational HQ in Birmingham.

Ben Jayes, managing director of Vivalda Group is delighted with the move. He said: “While we founded the business in London back in 1999, we found that high rents, poor road links and a transient workforce

Vivalda provides high performance facades to many high profile building projects across the UK. As the UK’s number one supplier of rain screen cladding and facade panels, Vivalda prides itself on offering a genuinely independent service to contractors in support of specifiers and architects.

Products supplied by Vivalda include Marley Eternit, Cembrit, Rockpanel, Trespa and Fibre C. Vivalda also owns the PURA Facades brand. www.vivalda.co.uk

Constructionline Gold for Lareine Engineering Daylghting & Ventilation specialist Lareine Engineering has recently successfully undergone assessment by Constructionline, to raise its membership status from Silver to Gold.

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This new accreditation recognises the Company’s high level of commitment to industry and government standards. Constructionline Gold membership has been awarded following assessment of the Company’s policies relating to

Environmental Management, Quality Management, Equalities and Diversity. It ensures that legislation is met in areas such as Modern Slavery, Anti-bribery and Corruption, and Equal Opportunities. www.lareineengineering.com

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VELUX® hits the road to help homeowners realise extension dreams

In 2018,Velux will be exhibiting at SelfBuild Live, Home Building and Renovating Show, Grand Designs Live and UK Construction Week

Leading roof window manufacturer VELUX is attending a number of exhibitions across the UK and Ireland throughout 2018 to give expert advice to homeowners hoping to turn their extension dreams into reality.

Daylight experts from VELUX will be on stand at the UK and Ireland’s biggest and best events for home renovators this year, including SelfBuild Live, Home Building and Renovating Show, Grand Designs Live and UK Construction Week.

From curved glass rooflights to VELUX INTEGRA® automatic roof windows, VELUX will be exhibiting a range of products for all sorts of projects.

www.daylightingmag.co.uk

New appointments at Filon Products GRP rooflighting specialist Filon Products, has recently made two key appointments to support the Company’s continuing expansion.

Peter Bell Business Development Manager, provides external support to distributors as well as developing new business opportunities.

His area is Wales and England up to and including Lancashire and Yorkshire.

“These events are a great way for people thinking about extensions or home improvements to get to grips with a whole range of products and to see the benefits they could bring to their home”.

He continued: “We’re encouraging homeowners to come along and spend some time with our team, and get inspired by daylight when it comes to making improvements to their living spaces,” says Grant Sneddon, product manager for VELUX. For the full list of events VELUX will be attending this year, visit www.velux.co.uk/exhibitions www.velux.co.uk

Richard Davies As Business Systems Analyst, Richard’s role is to analyse the Company’s systems and processes and implement change in order to streamline operations and improve where possible. www.filon.co.uk

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INDUSTRY NEWS

Roofglaze restructures to support growth From 1st April 2018, Roofglaze Ltd is pleased to announce that it will officially become a group comprising three limited companies, with Roofglaze Holdings steering the aspirations of the group and its two customer-facing subsidiaries; Roofglaze Rooflights and Roofglaze Limited.

Roofglaze Ltd has experienced significant year-on-year growth and, over the last 12 months, has consulted both clients and staff to establish how the business can best service its customers, which has led to the business taking the strategic step to restructure.

These changes are being made to align the company to best serve its diverse customer base.

In parallel, Roofglaze has opted to revise its management structure

to serve the new challenges that a group of companies presents, with Richard Cliffe becoming CEO of Roofglaze Holdings.

The group is pleased to announce the appointments of Chris Morgan as Managing Director of Roofglaze Rooflights, and Robert Culley as Managing Director of Roofglaze Limited.

By having two specialised and efficient sub-divisions, Roofglaze will be able to further expand on its product and service offering in an increasingly competitive marketplace.

Roofglaze Rooflights will offer customers a wide range of stock and bespoke Flatglass Rooflights, Roof Lanterns and Domes.

Roofglaze Limited will continue to provide its unique range of

bespoke large area skylights through its key partnerships with established glazing system manufacturers, as well as offering its own contemporary Flatglass rooflights and Solis skylight systems.

Richard Cliffe, CEO of Roofglaze Holdings, had this to say about the restructure: “Roofglaze is committed to continuing as an innovative leader in this industry. As such, we always strive to provide the ideal rooflight solution for every project that we work on. This restructure allows us to be more agile as a business, which ultimately results in us being able to provide the best possible solution and service to our customers.” www.roofglaze.co.uk

apT launches pioneering service The Midlands’ first public sector commercial planning, development and environmental consultancy is to be launched in Telford this month. apT is blazing a trail for local authorities across the UK aiming to save housing developers, commercial developers, businesses, and individual home owners time and money by helping them to make their ideas to extend and build, come to fruition.

The consultancy, part of Telford & Wrekin, will be looking to support developments through the regulation processes, from the promotion of land to achieving consents, through to

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its safe completion on behalf of clients across the region including Shropshire, Cheshire and the wider West Midlands. apT’s customer focussed services include professional help and guidance for planning, both preparing and submitting planning applications, the preparation of policy and support promoting sites in highway design and adoptions and building regulations.

Valerie Hulme, Group Manager for apT, said: “We help by supporting developers and home owners to get their planning applications ‘right first time’, including sustainable design solutions and making sure the buildings are structurally safe.

“We are a multi-disciplined development consultancy, combining public sector knowhow with a competitive business approach and brining together specialist knowledge and expertise all under one roof. Our in-house experts will speed up the development process accounting for every potential hurdle along the way, because we have indepth knowledge of the planning and environmental regulations.

Our specialist skills and experience cover all necessary bases and means we are fully equipped to help our clients meet all the requirements of the development process, creating tailored development solutions”. www.apt-group.co.uk

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Twinfix Georgian Wired Polycarbonate Non-Fragile Rooflights Twinfix is a family run business.

As experienced innovators they offer a range of well-engineered glazing products, many of which are fitted on the roofs of Rail Stations and Depots.

The benefits of this system are: • Safe in use: All Multi-Link-Panels pass the ACR[M]001:2014 drop test, in accordance with HSE recommendations, with a ‘B’ designation.

The Multi-Link-Panel is an aluminium framed modular rooflight system, designed with a unique fixing method that results in incredibly quick installation times.

• The Twinfix Georgian wired grade solid polycarbonate is particularly popular as it mimics Georgian wired glass.

In order to drive efficiencies within their work in rail Twinfix have utilised up-to-date 3D printing to aid product innovation and development, employing this new technology to view a 3D model of a revised Multi-Link bar design for use in future rail applications.

• Polycarbonate absorbs vibrations without cracking, crazing or breaking.

For ease of specification the Multi-Link-Panel is available as a BIM object for download in IFC and Revit formats from the Twinfix website.

• The light weight of the finished product results in less stress to the fabric of original buildings.

The modular roofglazing panels can be glazed with Twinfix Georgian wired effect polycarbonate. This clever innovation looks like Georgian wired glass, but is much lighter and will not crack, craze or break. Perfect for heritage applications.

• The aluminium framework can be powder coated to a RAL colour to suit your project.

• Sleek in-line access hatches (developed at the request of Network Rail) offer unobtrusive and safe access through the glazing for maintenance purposes.

• Factory manufactured rooflight panels means no costly mistakes on site.

For more information contact us on:

Tel: 01925 811311

Email: enquiries@twinfix.co.uk

www.twinfix.co.uk

NEW PROJECTS Private home, West London Custom made East and West facing rooflights

by Lonsdale provide generous amounts of natural light and are a focal point of a new extension with dramatic results as the sun moves from early morning until dusk.

Ever changing forms of sunlight fall upon the polished concrete flooring which runs throughout the ground floor.

The project is by Architect Simon Feneley at Feneley Studio. www.lonsdalemetal. co.uk

Scottish Power HQ, Glasgow The largest singleoccupier development in Glasgow for around 25 years has made use of a bespoke curtain wall system by leading UK manufacturer Kawneer.

The architectural aluminium supplier’s system features left and right-handed mullions and split transoms to cater for the high movement in the 14-storey new flagship headquarters building. www.kawneer.com

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NEW PROJECTS High Speed Rail College, Doncaster.

Roofglaze installed bespoke Vitral A74 Monopitch Rooflights at this major new training facility in Doncaster.

The Project Architect was Faithful+Gould and the Main Contractor was Willmott Dixon. www.roofglaze.co.uk

Trumpington Park Primary School, Cambridge Pioneering polycarbonate roofing supplier Twinfix has marked the first use in the UK of its premium bolted glass canopy.

In fact, two of these new canopies have been used at the new Trumpington Park Primary School which supports the new Great Kneighton housing development, along with an existing secondary school and existing library building. www.twinfix.co.uk

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NEW PROJECTS ‘Your New Town Hall’, Brixton Hill, London Lareine Engineering has installed Monovision flat glass rooflights at ‘Your New Town Hall’ in Brixton – new home of Lambeth Council’s Offices.

The project also involved installation of AOV smoke ventilators and access hatches. www.lareineengineering. com

Centurion Golf Club, St Albans Roofglaze installed this bespoke Lonsdale ThermGard Monopitch Rooflight, at the Centurion Golf Club in St Albans The Project Architect was Saunders Boston and the Main Contractor was Ashe Construction. www.roofglaze.co.uk

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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

DAYLIGHTING IN EDUCATION

LIGHTING THE WAY FOR LEARNING

By Imma Boada, Specification Manager, Kingspan Light + Air

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DAYLIGHTING IN EDUCATION In its 2016 ‘School Places Challenge’ Report, Scape Group projected that there will be an extra 729,000 pupils in state schools by 2020—a 10% rise from 2015. To cope with this surge in demand, it estimated that over 24,000 new classrooms, the equivalent of 2,122 new schools, will need to be built. However, it is not just the quantity that needs to be considered.

Children spend up to 40 hours a week in educational buildings. It is therefore vital that both new and existing schools are designed to provide a safe environment that best facilitates learning and has a positive influence on the health and wellbeing of students and staff. This includes ensuring classrooms have adequate levels of natural light.

Benefits of Daylight in Teaching Spaces From a primary school classroom to a lecture hall in a university, good lighting is essential to enable occupants to work comfortably and see the information presented to them.

Both the Education Funding Agency

(EFA) and the Chartered Institution of Building Services Engineers (CIBSE) Lighting Guide 5: Lighting for Education stipulate that, where possible, natural daylight should be the primary source of light in educational facilities. From a practical point of view, making the most of this ‘free’ light can save up to 80% in artificial light demand, helping to minimise long-term running costs and maintain best practise in terms of a sustainable design under schemes such as BREEAM. Research also shows that exposure to natural daylight can demonstrably improve pupils’ attitude, learning rates and attendance. For example, in 1999, Heschong Mahone Group analysed the performance of 21,000 primary school children in different schools across the west coast of the USA to see if there was a connection between daylighting levels in classrooms and academic achievement. It discovered that students who worked in spaces with high levels of daylight progressed 20% faster in maths tests and 26% on reading tests than those working with the least amount.

Both the Education Funding Agency (EFA) and the Chartered Institution of Building Services Engineers (CIBSE) Lighting Guide 5: Lighting for Education stipulate that, where possible, natural daylight should be the primary source of light in educational facilities.

At the heart of Kingspan Day-Lite Kapture is an advanced, nano-prismatic layer which uses microscopic structures to efficiently scatter light, ensuring excellent levels of light transmission.

www.daylightingmag.co.uk

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DAYLIGHTING IN EDUCATION

The unique shape of the Kingspan Day-Lite Kapture Rooflight comprises three overlapping spherical domes and has been specially designed to capture the maximum level of light, even at low sun angles.

There are a number of explanations for this. Daylight through windows and skylights is more diffused, providing a more even illuminance of objects and people than artificial ceiling lights which direct light down at the working plane. Artificial lights, particularly those containing fluorescent tubes, can also have a noticeable flicker that is distracting and can result in headaches and eye strain. Furthermore, as natural daylight contains all the colour wavelengths visible to the human eye, it is the ideal lighting source for colour rendition. This means that pupils in a daylit space will be able to identify colours and shades more clearly and in a sharper contrast, helping them to better understand and engage with various educational resources.

Humans are programmed to be more active and alert during daylight hours, tiring as it becomes darker. Therefore, access to high levels of natural light will reinforce the children’s natural circadian rhythms, making them feel more awake and ready to learn during

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There are many other health benefits associated with exposure to natural light which could help to improve mood and reduce absenteeism due to sickness, from killing off types of viruses and encouraging the production of vitamin D, to easing the symptoms of seasonal affective disorder (SAD).

the day and consequently sleep better at night. This is a particularly important benefit in sports halls as they are often used for both physical education and exams− situations which both require high levels of concentration and energy.

There are many other health benefits associated with exposure to natural light which could help to improve mood and reduce absenteeism due to sickness, from killing off types of viruses and encouraging the production of vitamin D, to easing the symptoms of seasonal affective disorder (SAD).

Design Considerations As the natural light levels of an educational facility are so important to both its function and success, it should always be considered from the outset of the design process. This will not only ensure that the type of windows and skylights work with the wider architectural vision for the project, but also that they will provide the adequate balanced daylighting required.

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DAYLIGHTING IN EDUCATION Natural light is extremely variable and requires careful management. Whilst artificial lighting can help to meet the demand in times of low light, excessive levels of sunlight can cause disruptive, and even temporarily disabling, glare. This often results in the teacher counteractively having to pull down the blinds and turn on the lights. Similarly, too much direct sunlight can cause uncomfortable ‘hotspots’ and pupils may need to be moved around the classroom or the teacher may have to open windows, potentially causing further thermal or acoustic disruption.

These issues in mind, it is important for lighting designers to take into consideration the minimum and maximum amounts of light the internal spaces will receive. ClimateBased Daylight Modelling (CBDM) is a compulsory requirement by the EFA for designs submitted to its Priority Schools Building Programme (PSBP).

This methodology accurately models the daylight levels of a proposed construction in its exact geographical location at various times of the day throughout the period of a year.

Currently, the guidance requires the learning spaces to achieve useful daylight illuminance (UDI) of between 300 lux and 3000 lux— with 300 lux being the target for 80% of the area. Within this range, additional supplementary electric lighting is not likely to be needed. The EFA also suggests that setting a peak acceptable illuminance “reinforces the need to provide suitable glare control, which modulates the light transmission rather than just eliminating the light”.

Through-the-Roof Performance Windows are the most obvious point of entry for natural light to enter a space. However, used alone, they are unlikely to provide a uniform distribution of light, particularly in deep classrooms and sports halls, or

in central areas with limited external walls. Moreover, if the school is in a built-up area, direct light from the sky may be obstructed. Therefore, a daylighting scheme that uses a combination of windows and skylights should be implemented to obtain the quantity and quality of light needed.

Rooflights have been used within educational building design for decades, particularly as flatroofed constructions have become increasingly popular. Recent advancements in rooflight technology has focused on refining their oftencontoured shape to enable it to capture more light at low sun angles, such as in the early morning or late evening, regardless of orientation.

In addition to having aesthetic merit, the carefully-honed designs ensure that learning spaces are adequately illuminated for more hours of the day than standard rooflights, thus increasing the students’ exposure to daylight and saving more in artificial light demand.

The polycarbonate glazing itself has also undergone many developments to guarantee excellent levels of light transmission for the lifetime of the product. As a material, polycarbonate does not filter out blue spectrum light— the colour temperature associated with morning when we are most alert. Other traditional or industrial rooflight materials can yellow over time, blocking out the beneficial blue light waves and distorting the visual environment.

Some of the latest rooflights also incorporate layers containing microscopic prism structures scatter the beams of sunlight, eliminating glare and resulting in a soft natural light ideal for creating a lively atmosphere for learning. Climate control glazing options, including ultra-violet (UV) and infrared (IR) blocking particles, can provide additional protection against solar

Climate-Based Daylight Modelling (CBDM) is a compulsory requirement by the EFA for designs submitted to its Priority Schools Building Programme (PSBP).

This methodology accurately models the daylight levels of a proposed construction in its exact geographical location at various times of the day throughout the period of a year.

DAYLIGHTING IN EDUCATION heat gain, helping to keep the spaces well-lit and thermally comfortable.

To maximise the energy and cost savings that can be achieved in each application, precision-engineered rooflights can be used in conjunction with low-energy intelligent lighting solutions. With a combination of smart dimming controls, motion detection and daylight harvesting, these systems can reduce lighting costs by up to 90% by only providing the exact quantity of electric light required in periods of no or low ambient light. Designs are also available with a motorised opening and closing mechanism to offer daily aeration and ventilation, in addition to exploiting daylight.

Safety is a vital factor for any roof-based product, particularly in schools. It is important to ensure that any rooflights specified meet the correct non-fragility standards and recommended safety measures are considered, such as installing a steel security mesh within the rooflight dome. Tested to the same non-fragility standards as the glazing itself, this

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mesh can prevent objects or persons from falling through the opening in the roof if the rooflight is removed for maintenance or repair. It can also be a visual deterrent to intruders looking to gain access via the roof. Typically powder-coated white, it does not affect the light transmission.

Encouraging Brightness As awareness of the positive effect daylight has on our productivity, health and happiness grows, so too does the demand for educational facilities which can effectively exploit it. The latest technologies allow specifiers and installers to meet the most demanding standards, delivering excellent light transmission whilst also limiting glare and ultimately creating bright and sustainable learning environments where the next generation can thrive.

Safety is a vital factor for any roofbased product, particularly in schools. It is important to ensure that any rooflights specified meet the correct non-fragility standards.

Kingspan Light + Air offer a ‘Daylighting in the Learning Environment’ RIBA Approved CPD. To sign-up to this, please email info@kingspanlightandair. com www.kingspanlightandair.co.uk

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Creating bright environments, enabling students to shine At Whitesales, we design specialist daylight solutions providing outstanding aesthetics and creativity to buildings.

Discover the design possibilities, call us today

www.whitesales.co.uk | sales@whitesales.co.uk | 01483 271371

RETAIL SECTOR – Daylighting & Ventilation

Creating safe and comfortable retail malls & shopping centres David Mowatt, Director of Lareine Engineering and Chairman of the SCA (Smoke Control Association), discusses the dual roles of daylighting & ventilation in large retail premises

Every building, whatever its purpose, must provide a controlled internal environment that is protected from the variable and uncontrollable external climate.

In the retail sector, research has proven that natural daylight and a pleasant internal climate play an important role in improving sales and improving the performance and productivity of staff.

In these environments where large numbers of people spend time every day, high levels of comfort and aesthetics are required, as well as state-of-the-art fire & smoke control.

Generating and maintaining a controlled internal environment is a complex process and the design of the building envelope is an important factor in determining comfort levels and safety of occupants within the building, as well as the energy performance of the building itself.

Appropriate levels of daylight and fresh air are crucial to the success of a building and a balanced, integrated approach to system design and specification will generally provide the best results.

Below: Shopping malls are busy and often multi-level buildings requiring high levels of natural daylight and often with complex requirements for smoke and heat exhaust ventilation.

1. Louvred ventilators allow clean fresh air to be drawn in to replace stale air 2. Fixed louvres and roof ventilation terminals to exhaust stale air and fumes 3. Dual purpose louvred ventilators can provide both smoke & natural ventilation and can be integrated into rooflights

3 2 1

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RETAIL SECTOR – Daylighting & Ventilation

Rooflights may be fitted with integral louvred ventilators for smoke and natural ventilation, as at this large UK shopping centre.

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RETAIL SECTOR – Daylighting & Ventilation

Correctly designed daylighting & ventilation solutions will provide efficient energy utilisation, close control of internal temperatures, good air quality, reduced glare and very importantly, safety of building occupants. So it makes sense to consider all of these factors at an early stage of the building design.

system components can be specified to perform dual functions. Rooflights, for example, may be specified with integral ventilators. Single-point supplier responsibility can also provide advantages in terms of cost and project co-ordination.

The retail sector provides specific challenges to the design and specification of daylighting and ventilation systems and every building needs to be considered independently.

Shopping malls are busy and often multi-level buildings requiring high levels of natural daylight and often with complex requirements for smoke and heat exhaust ventilation.

Natural ventilation is the preferred solution for many retail sector applications, due to its energy efficiency. Natural ventilation requires no mechanical energy, resulting in savings on power costs.

The key advantage of integrating daylighting & ventilation design, is that

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Natural comfort ventilation – naturally effective

This large retail mall features Lareine Eura louvred ventilators integrated into the rooflights (above) and Lareine Estra louvred ventilators in the vertical facades (opposite page), as well as Evaporative Coolers and Automatic smoke curtains, to provide a complete, integrated solution.

In addition to low running and maintenance costs, key benefits of effective natural ventilation include: • Improved wellbeing and productivity of building occupants • Improved environment for IT and

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RETAIL SECTOR – Daylighting & Ventilation production/manufacturing equipment, resulting in reduced maintenance costs

The design of natural ventilation systems can be complex because of the interaction between wind ventilation and the stack effect, as well • Pleasant internal environments as the effect of building geometry and support increased building usage the distribution of openings. This can and property values require analysis using computational • Improved conditions for products and fluid dynamics. goods resulting in longer shelf life Natural ventilation can also be with fewer rejects influenced by occupant behaviour, for Natural ventilation falls into two example, a person near to a window broad categories, which may operate choosing to close it. For this reason it together or independently of each can be beneficial to automate natural other: ventilation systems, or to provide Wind-driven (or wind-induced) cross training for occupants. ventilation, where pressure differences Integrated smoke ventilation systems between one side of the building Natural ventilation systems can also and the other draw air in on the high be designed to incorporate smoke pressure side and draw it out on the and heat exhaust ventilation systems low pressure side.

(SHEVS) to remove smoke from the Buoyancy-driven stack ventilation (the building in the event of fire. SHEVs stack effect), where cool air enters allow low level escape routes to be the building at low level, is heated by kept clear of smoke as well as reducing sources inside the building (people, damage to the building. equipment, heating systems etc) and System design must take a variety therefore rises through the building of factors into account which will be to be ventilated to the outside at high specific to the building. level.

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Natural ventilation is the preferred solution for many retail sector applications, due to its energy efficiency.

Natural ventilation requires no mechanical energy, resulting in savings on power costs.

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RETAIL SECTOR – Daylighting & Ventilation

With large roof spaces, for example, it’s important to limit the spread of smoke.

This requires high level smoke barriers to divide the roof space into individual smoke containment reservoirs.

Smoke barriers are also often used in shopping centres with central atriums to control the flow of smoke into the mall.

Maintaining a clear layer below the smoke is another critical factor. It needs to be high enough to keep escape routes clear for shoppers, store staff and shopping centre employees.

This can have a bearing on the design of smoke barriers which can affect building usage.

Ensuring a supply of replacement air is another essential aspect of system design. As smoke and gases are extracted, sufficient fresh air needs to be introduced to take their place.

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Without this fresh air supply, the building will become depressurised and the smoke ventilation system will be ineffective.

When considering any smoke ventilation system design, it is important that it carries full BS EN12101 Certification. Beware of terms like ‘in accordance with BS EN12101’. These claims do not necessarily mean that a product or system has actually been tested to BS EN12101 – and that in turn can mean that a specification made in good faith could actually be noncompliant and therefore potentially dangerous. To safeguard yourself, your client and your client’s building occupants, you need to be 100% certain of compliance.

In this shopping mall, transparent smoke barriers have been installed, to limit the spread of smoke and maintain a clear layer below to keep escape routes open in the event of a fire.

The transparent barriers allow light to penetrate into the mall and maintain an open, airy feel.

www.lareineengineering.com

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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

RETAIL SECTOR – advertorial

Retail and leisure centre benefits from rooflight specification An iconic retail development in the heart of Northamptonshire has enhanced the visitor experience with a cleverly designed mall and external terraces which maximise the use of natural light.

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www.daylightingmag.co.uk

RETAIL SECTOR – advertorial

“Specified as canopies to two external terraces and also in the atrium near House of Fraser, the rooflights have allowed both the flooding of natural light and ventilation, where appropriate.”

Pivotal within the development was a series of roof lights which were specified from leading rooflight manufacturer Xtralite, which is renowned for their design capabilities and flexibilities in supporting bespoke, non-standard architectural designs.

14 unit vertically ended rooflight system installed. Furthermore, it was fitted with 28 24vDC electronically operated top hung, outward opening vents to facilitate cleaning and natural ventilation. The latter ensures easier maintenance and also visitor and employee comfort in warmer weather.

James Miller Managing Surveyor from Winvic, the main contractor chosen to deliver the project commented: “Xtralite was chosen for their reputation within the market and their products were entirely suited to this cutting-edge retail development which has been designed to enhance both the visitor and employee experience.

Jim Lowther sales director Xtralite commented; “This is a stunning development which merges the very best of retail and leisure in a stylish building entirely suited to modern day consumer and construction requirements ensuring our buildings are future proofed.”

“Specified as canopies to two external terraces and also in the atrium near House of Fraser, the rooflights have allowed both the flooding of natural light and ventilation, where appropriate.”

External terraces surrounding the fabric of the building utilised single glazing from the X-Span range in a self-supporting monopitch canopy system. Meanwhile the atrium outside the House of Fraser store saw a thermally enhanced self-supporting

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He continued: “We were delighted to support the construction by specifying our bespoke range X-Span. This type of project highlights our flexibility, not only in the retail sector, but also how our products are transferrable across a range of buildings and the myriad requirements that they demand.” www.xtralite.co.uk

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Structural Glazing Xtralite from

Bringing your vision to life Xtralite has developed a universal, structural glazing package for bespoke installations, offering architects complete design freedom and meeting the widest set of technical requirements.

Our experienced designers can bring your vision to reality, incorporating: A suite of interchangeable profiles Our Cascade internal water management system Custom engineered connections Bespoke closures Custom designed flashings Glass units tested to TN66 and TN67 Class 2 20 year warranty Xtralite Structural Glazing: Helpful People; Robust Systems; Stunning Designs.

Call us on Or visit

01670 354 157 xtralite.co.uk

daylight diary NARM’s Technical Committee: the brains behind the role that rooflights play in meeting Part L of the Building Regs At the heart of NARM is our influential Technical Committee, comprising leading experts in the design, manufacture and application of rooflights across all sectors.

Over the 20 years since NARM was formed, our Technical Committee has played a pivotal role in establishing the effects of rooflighting on building performance.

As an example, we have been instrumental in collecting, analysing and interpreting rooflighting data upon which the regulations pertaining to rooflighting in The Building Regulations Approved Document L (Conservation of fuel & power), have been based.

Independent research commissioned

by NARM and carried out by the De Montfort University’s Institute of Energy and Sustainable Development, showed that minimal losses in thermal insulation are greatly offset by energy savings resulting from reduced demand for electric lighting and that generally speaking, the greater the rooflight area the greater the potential savings.

The research findings resolved a conflict in the Building Regulations, in respect of rooflight areas, energy efficiency and the potential for solar gain. This fundamentally changed common perceptions about the role of rooflights in the overall energy efficiency of buildings and led to the

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establishment of today’s required rooflight U-values and appropriate rooflight areas. This is now outlined in our Technical Document NTD06.

NARM’s Technical Committee continues to meet on a regular basis to address current issues relating to rooflight specification, installation and legislation.

20th ANNIVERSARY

1998 – 2018

NARM also regularly engages with other trade associations and industry bodies, to pursue our mission of engendering best practice in our industry. For example, in March, we met with the NFRC of whom NARM is a member organisation, to discuss joint initiatives relating to rooflight installation.

More soon from NARM...

Keep up to date with the latest from NARM, by connecting with us on LinkedIn and Twitter View our CPD Seminar on YouTube Download NARM Technical Documents at www.narm.org.uk Are you a RIBA member?

Book our CPD Seminar now for double points Become a NARM member

Mar/Apr 2018

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ROOFLIGHTS – TECHNICAL

Light Transmission: 5 factors you should consider

By John Godley, Technical Manager, Hambleside Danelaw Ltd

Rooflights can provide up to three times more light than vertical glazing and can provide more even and usable distribution of natural light into a building, particularly in large structures where light is required deep into the building or in enclosed areas that cannot be lit through an external wall.

But it isn’t just as simple as installing some rooflights and the job is done.

There are some important factors to consider for an effective daylighting plan.

1. Direct Light vs Diffused Light Direct Light Light that enters a building through transparent materials, such as glass and polycarbonate, provides a strong and direct light path that can create high localised levels of internal illumination. In periods of strong

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sunlight, it can create strong contrasts between light and dark, producing undesirable shadows and glare.

Diffused Light Light that scatters as it passes through translucent naturally diffusing materials such as GRP or through formed elements designed to scatter the light.

This makes more efficient use of the available light by spreading it over a far greater area, significantly reducing the difference between light and shade and minimising shadows thereby creating a more consistently evenly lit space and reducing the risk of glare.

2. Light Transmission Different rooflight and insulant materials, together with how they might be combined, provide very different levels of light transmission.

It is important that all elements of the rooflight assembly are taken into consideration, particularly when

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ROOFLIGHTS – TECHNICAL rooflights with multiple layers are used for improved insulation. Even transparent elements like glass or polycarbonate can suffer from significant reflectance light losses.

The more elements used in a rooflight assembly, irrespective of the transparency of those elements, the greater this reflectance loss can be.

Whilst multi-walled or multi-layered rooflight insulations will improve the thermal performance of a rooflight, they will also reflect away more of the daylight, reducing the effectiveness of that rooflight.

It is generally far better to deliver natural diffused light through larger

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rooflight areas with moderate levels of light transmission rather than using fewer rooflights or reduced rooflight areas with high light transmission levels. This ensures that the internal lighting is as even as possible and there are no contrasting areas of gloom and glare that can impact on both comfort and function of the building.

Critically, many building owners are unaware of the financial value of maintaining rooflights to minimise the light losses created by the accumulation of dirt. This can result in energy expensive artificial lighting being used more often and for longer periods.

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ROOFLIGHTS – TECHNICAL

3. Building Use Where possible, designers need to consider the intended building use and possible future changes to the use or internal layout of the building.

Windows and wall lights become ineffective at distances over 6m into the building and daylighting through rooflights then becomes the most effective method. When combined with an efficient automated lighting control system with dimming or zoning, energy efficiency can be optimised by reducing the lighting energy consumption.

4. Energy Saving In newer buildings, excellent thermal performance is now being achieved with increased levels of insulation achieving only small improvements.

Some of the most significant savings in energy can be made by using the free resource of natural daylight. Anything that reduces the need for internal artificial lighting, however efficient internal lighting maybe, can only be a good thing.

Specifiers should be aware that the use of ultra-low U-value rooflights in the pursuit of fractions of a Watt heat retention gains can be disproportionate to the increase in artificial lighting

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energy consumption that can result, and a balance needs to be found for that building.

The running costs of artificial lighting can be as much as four times the heating cost losses with more traditional luminaires, and even when using modern low energy lighting systems, it can be up to three times.

This makes free, natural daylighting a simple, cost effective way to save on fossil fuel usage and building running costs.

5. Solar Gain Maximising the daylighting should be done with care not to create a problem with building overheating.

Solar shading and adequate ventilation strategies can also make a significant contribution to the function of a building without the introduction of energy consuming cooling systems.

For any building there is an optimum light level which will give optimum energy savings and daylighting benefits. This formed part of a study conducted by DeMonfort University that influenced the thinking behind the Building Regulations changes in 2006. Depending upon specification, the study concluded that the optimum rooflight area percentage can typically be as much as 18% - 20% before other

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ROOFLIGHTS – TECHNICAL measures to control overheating become necessary.

Large areas of glazing, or rooflighting, combined with internal heat gains can result in excessive heat build up within a building. The total solar gain (g-value) or heat energy that naturally accompanies daylight into a building can then, at certain times of the year, create overheating problems. Most heat energy from the sun that enters a building through the rooflights is transmitted directly in the visible light spectrum, therefore it is essential that the relationship between light transmission and solar heat transmission is understood.

Building designers will often specify a rooflight with high light transmission and a low g-value to meet building energy modelling targets without the understanding that the two are closely

and inextricably linked. There can be small variations between the light transmission and solar transmission of the rooflight depending upon the composition and material used, however it is not possible to diverge these properties as far as some manufacturers claim. As a rule, the lower the solar transmission, the lower the light transmission.

To summarise, the choice or specification for any rooflight should take into account the whole building design and use of the building. There can be no general optimum light transmission level, U-value or rooflight area that can be adopted, and each building design should consider how the rooflight can maximise the energy performance of that building. www.hambleside-danelaw.co.uk

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 OLU T I O N S

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

Innovative upgrade & refurbishment solutions for profiled fibre cement or metal roofs & cladding

Fragile roofs are only unsafe if you walk on them.

Replace rooflights and sheets from below with Fixsafe.

Figures published by the Health & Safety Executive show that falls through fragile roof materials caused over one quarter of fatal accidents in the construction industry.

Fixsafe addresses the problem and is playing a major role in reducing this statistic.

Fixsafe allows sheets to be replaced from below, eliminating the need to access fragile roofs and thereby greatly increasing site safety. By removing the requirement for costly safety netting, roof staging or external scaffolding, on-site time is reduced and access equipment costs are minimised.

Replacing rooflights from below is an HSE recommended method and complies with Regulation 9 of the Work At Height Regulations 2005. Protect your roofers and yourself and your team by repairing or replacing rooflights and roof sheets with Fixsafe.

We also offer: • Insulated rooflights for energy-saving upgrades and refurbishment • Lightweight over-roofing for cost-effective roof refurb with minimal disruption.

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

Filon Fixsafe allows replacement rooflights or roof sheets to be installed from below, avoiding the need to access fragile roofs

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

ROOF SAFETY

Safer rooflight replacement solution for industry-leading roofing contractor An HSE endorsed roof sheet replacement system has allowed safer replacement of rooflights at this warehouse premises near Heathrow Airporttranslucent cladding is playing a part in improving airport security.

Figures published by the Health & Safety Executive show that falls through fragile roof materials could equate to nearly a quarter of fatal accidents in the construction industry.

Older profiled roofs often present a particular hazard in this respect, due to reductions in integrity caused by long-term weathering.

Weatherproofing Advisors Ltd, one of the UK’s leading industrial and commercial roofing contractors, was called upon to replace old, discoloured rooflights at a warehouse premises near Heathrow Airport. Following on-site trials, the company has made Filon’s Fixsafe system a key part of its stringent Health & Safety programme and this project presented a typical scenario in which the system would reduce risk to roofers undertaking the rooflight replacement.

The Filon Fixsafe system allowS profiled rooflights and roof sheets to be replaced from below, eliminating the need to access dangerous fragile roofs, thereby greatly increasing safety for maintenance operatives and equipment erectors.

Weatherproofing Advisors’ Durector, James Turner, picks up the story: “Responsible roofing contractors such as ourselves go to great lengths to ensure the safety of their employees when accessing fragile roof areas for maintenance or repair. This usually involves the erection of scaffolding and

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safety nets, often involving more time and cost than the repair itself.”

He continued: “Fixsafe removes the need for operatives to access fragile roofs, because the entire process can be carried out from below, using a scissor lift. This makes the whole process significantly safer and more controllable. Our trial confirmed that the system is also very practical and simple-to-use on-site and it allows the whole process to be carried out without the additional time and costs involved in setting up scaffolding and safety nets. With safety at the top of our priority list, we have now initiated a policy of ‘Fixsafe first’ for all our projects. This means that Fixsafe is used as a matter of course, wherever internal access is possible. ” www.filon.co.uk

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TRANSLUCENT CLADDING – advertorial

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TRANSLUCENT CLADDING – advertorial

Healing daylight at Benenden Kalwall® translucent cladding is the architectural focus of the new £55million development of Benenden Hospital in Cranbrook, Kent.

The scheme, designed by architects C A Vaughan Blundell with assistance from SR Architects Ltd, has created a wonderfully light and airy entrance atrium designed to welcome and create an enhanced patient and visitor experience with maximised natural daylight. The extensive breakout and catering facilities support theatres, en-suite rooms, outpatient department and ophthalmic suite along with diagnostic imaging, rest and recovery areas. The main contractor was Willmott Dixon Construction.

The Kalwall skylights provide additional light in the large atrium throwing (would ‘projecting’ sound better) it deep into the interior. They were specified complete with highly insulating Nanogel which achieves an impress U value of 0.28W/m2K, helping the project attain a Breeam status of ‘Good’. This is particularly impressive given the amount of curtain walling and clerestory glazing involved in the scheme.

The skylights have a unique ability to bathe interior spaces with diffused and glare-free daylight, which creates a stimulating and healthy environment.

In addition, their heavily insulated composition eliminates glare and hotspots, thereby reducing the load on temperature control systems and the

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need for artificial lighting.

Geoff Holden, Senior Technician at C A Vaughan Blundell comments, “The use of Kalwall represented the best value balance of energy saving and cost and provided us with the ideal way to achieve spatial daylighting within the requirements of Part L”.

Kalwall is a popular choice for projects where performance, long life cycle and low maintenance are required, coupled with an aesthetic finish.

The aluminium or thermally-broken grid core with interlocking I-beams gives Kalwall incredible strength. The lightweight system reduces the need for supporting structures while offering the highest protection in terms of windborne debris and resistance to impact, abrasion and point loads. The exterior face is colour stable and includes a UV resistant, self-cleaning surface.

This means that normal rainfall helps to keep the surface free of dust and dirt while at the same time retaining its original colour during the weathering process. Furthermore, the inclusion of an erosion-prevention barrier protects the interior from weather exposure and the risk of fibre-bloom, cracking and crazing.

www.structura-uk.com/kalwall

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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...

Apple Michigan Avenue, Chicago Completed in 2017, Foster + Partners’ ‘most ambitious’ Apple Store features huge glass walls and a slender roof that looks like a scaled-up version of the company’s laptop computer.

The Apple Michigan Avenue store is located on the city’s river edge beside the North Michigan Avenue – also known as the Magnificent Mile – and in front of the higher-level Pioneer Court, a public plaza.

The carbon-fibre roof atop is designed to be as slim as possible and supported by four internal pillars to keep the glass walls free.

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DAYLIGHTING ICONS

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@Daylighting_Mag

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

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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 MAY / JUNE • Tensile Membrane Structures • Glass Rooflights • Daylighting in the Workplace • BIM • Climate-based Daylight Modelling

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

JULY / AUGUST • Domestic Daylighting • Controlling Heat & Glare • Daylight in Agriculture & Horticulture • Glass Facades SEPTEMBER / OCTOBER • Daylight for Dramatic Effect • Daylighting in the Retail Sector • Refurbishment • Modular Rooflights • Daylight Harvesting

MEDIA INFORMATION 2018

THE BI-MONTHLY DIGITAL MAGAZINE FOR SPECIFIERS & CONSTRUCTION PROFESSIONALS

@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

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.

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20th ANNIVERSARY

1998 – 2018

Shaping the future of daylighting for over twenty years.

NARM, the National Association of Rooflight Manufacturers,

is the influential trade association representing the UK’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.

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