DAYLIGHTING Magazine issue 28 May/June 2021 by BB2B

Issue 28 May/June 2021

ROOFLIGHTS

• INDUSTRIAL BUILDINGS • REFURBISHMENT

RIGHTS TO LIGHT ...BY ROYAL APPOINTMENT?

FACADES

AT A UNIVERSITY SCIENCE CENTRE

PLUS:

NARM: DRIVING CHANGE IN ROOFLIGHTING INDUSTRY NEWS PROJECTS AND MORE

Overhead glazing:

The term ‘toughened’ implies a degree of safety which in the case of rooflights, is misleading – as toughened glass can shatter, putting those beneath a rooflight at risk. For more information, visit:

www.narm.org.uk

Always check this with your supplier, as we are aware that some rooflights are being supplied with toughened glass inner panes: a potential danger.

AZING

OI CE H C E

For the safety of building occupants, NARM advises that inner panes on all glass rooflights must be laminated glass.

ON LY E H T S

For safety’s sake, check for the tick symbol.

D R O A VERHE

LAMINATED INNER PANE ENDORSED BY

RIBA accredited CPD materials Available

THE TRADE ASSOCIATION REPRESENTING LEADING UK ROOFLIGHT SUPPLIERS

CONTENTS

REGULARS

Editor’s Comment

Industry News

New Projects

FEATURES

Industrial Buildings

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

Daylighting Icons The Netherlands Institute for Sound and Vision

EDITOR Paul Bennett paul@daylightingmag.co.uk Tel: 01295 711666 Mobile: 07900 895110

AD SALES info@bennettb2b.co.uk Tel: 01295 711666

The quiet revolutions in rooflighting A look behind the scenes at the organisation that’s driving changes in UK standards & legislation

Rights to Light Rights to Light by Royal Appointment? The Crown Estate and the Town and Country Planning Act, by Manuella Nguessan of Rapleys

28 34

Twitterings What’s trending on social media?

More about DAYLIGHTING Magazine Back issues, free subscriptions & media information

www.daylightingmag.co.uk

Bennett B2B Ltd Pure Offices Lake View House Tournament Fields Warwick CV34 6RG United Kingdom TEL: +44 (0)1295 711666

Don’t Compromise on Rooflight Safety or Service Life Specification considerations for industrial rooflights, by Hambleside Danelaw

Trade Associations

DAYLIGHTING is published by:

Façades

DESIGN/PRODUCTION info@bennettb2b.co.uk Tel: 01295 711666 WEBSITE www.daylightingmag.co.uk CIRCULATION Daylighting is available by email, free of charge to subscribers, by logging on at www.daylightingmag.co.uk Free access is also available via our website and social media. Average impressions per issue are approximately 5,500, however this varies according to social media activity. Our readership is predominantly UK architects, specifiers, contractors, consultants and roofing professionals. Full details are available on our website. www.daylightingmag.co.uk

Façade designs band together A careful combination of A2 fire rated soffit panels, rainscreen cladding and mesh screens from Proteus Facades has helped band together the impressive new £42m Sciences Centre at Durham University.

Conservation Rooflights From car showroom to daylight-flooded home Stella Rooflight has supplied 12 bespoke conservation rooflights for a stunning conversion project in the seaside town of Lytham St Annes in Lancashire.

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.

May/June 2021

of Monovision flat glass rooflights, our solutions deliver performance & peace-of-mind. Lareine Engineering is a preferred supplier to leading architects, engineers & contractors, with a service that includes in-house design, manufacture, installation and servicing.

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glazed roofs and sophisticated natural & smoke ventilation systems, to our trusted range

of every description, across every sector, throught the UK. From bespoke, self-supporting

ON LY

You’ll find examples of Lareine Engineering daylight & ventilation expertise on buildings

O E CH I CE

THE

LANDMARKS IN LIGHT

R O AD VERHE

LAMINATED INNER PANE ENDORSED BY

THE UK’S TRUSTED DAYLIGHTING & VENTILATION SPECIALIST Head Office: 01506 448140 Midlands Centre: 01788 579307 E: info@lareineengineering.com www.lareineengineering.com

EDITOR’S COMMENT

Building economic growth... As life in the UK continues to open up after a year of lockdowns and other restrictions, the construction industry has been at the forefront of the economic recovery with activity at the highest level for seven years, despite material supply issues, complexities surrounding Brexit, shortages of skilled labour and other challenges.

rooflights for industrial buildings.

The continuing resilience of the construction sector is to be applauded. While £multi-billon investment in infrastructure projects is clearly a major driver in this growth, commitment and innovation among designers, planners, product manufacturers and building contractors play their role – as evidenced within this issue of Daylighting Magazine.

Those involved in urban planning will, I’m sure, be drawn to the article on The Crown Estate and the Town and Country Planning Act, by Manuella Nguessan of Rapleys on page 25.

If you specify rooflights, you’ll find three articles which may be of interest. The first, from Hambleside Danelaw on page 14, covers

The work of NARM in influencing rooflighting legislation & standards, is covered on page 17; and on page 30, you’ll find an interesting case study outlining the use of conservation rooflights in refurbishing an Edwardian building.

Paul Bennett paul@daylightingmag.co.uk

You’ll also find a revealing case study covering façade designs at Durham University – plus of course, our regular news and project updates... I hope you’ll find it all interesting reading – and as always, if you have any thoughts or comments, please drop me an email.

Issue 26 January/February 2021

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ENERGY EFFICIENCY HOW ROOFLIGHTS CONTRIBUTE Issue 27 March/April 2021 TO SUSTAINABLE BUILDING DESIGN

SMART

...and on’t forget, back issues are always available to read on-line at daylightingmag.co.uk PLUS:

DAYLIGHT & SUNLIGHT PLANNING INDUSTRIAL BUILDINGS SCHOOLS LATEST PROJECTS AND MORE

GLASS SWITCHABLE SOLUTIONS FOR LIGHT TRANSMISSION & PRIVACY

PLUS:

CONSERVATION ROOFLIGHTS DAYLIGHT PLANNING FIRE SAFETY LATEST PROJECTS AND MORE

www.daylightingmag.co.uk

Previous issues of DAYLIGHTING Magazine are available on-line indefinitely. So you can refer back to old issues whenever you like, right here: http://www.daylightingmag.co.uk/archives/

May/June 2021

INDUSTRY NEWS

UK Government sets out ‘build-back’ plans

Shutterstock.com

Construction Index has reported that the government has set out its legislative programme for the next parliament, including bills covering planning, building safety, public procurement and the next stage of construction for the HS2 railway. A central theme of the legislative programme is the prime minister’s mantra of ‘build back…’, with promises to ‘build back stronger’, ‘build back fairer, ‘build back greener, ‘build back safer’, etc. Much of the proposed legislation had been delayed by the Covid-19 pandemic consuming government’s attention, but the cost of dealing with the virus has only added impetus to the need to ‘build back’. The Planning Bill is the government’s much discussed drive to simplify the planning system for the benefit of

May/June 2021

developers, to get more homes and more infrastructure built more quickly. Local authorities will have to designate land according to three bands, which might be crudely categorised as: ‘no way’, ‘talk to us’, and ‘sure, go ahead and build’. The Building Safety Bill will, if passed, enact recommendations of the Hackitt report, commissioned in the wake of the Grenfell Tower fire. It will establish the Building Safety Regulator, establish a new framework to provide national oversight of construction products, establish a new homes ombudsman and introduce a levy on developers of tall buildings to pay for the removal of unsafe cladding.

no longer subject to EU public procurement directives. It would make it easier for public bodies to give contracts to preferred suppliers – those who satisfy specified political outcomes beyond the remit of the contract – regardless of price. The government promises that everything will be much simpler and more transparent than currently. The High Speed Rail (Crewe-Manchester) Bill will, assuming MPs continue to back the project, provide the powers to build and operate the next stage of the HS2 network from Crewe to Manchester. However, there was no mention of the planned leg to Leeds. www.theconstructionindex.co.uk

The Procurement Bill is designed to simplify procurement in the public sector now that the UK is

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INDUSTRY NEWS

Construction industry recovery gaining momentum The recovery in construction activity is gaining momentum, according to a report by Glenigan, the construction information specialist. While project-starts are still below pre-pandemic levels, the last few months have seen a strong and encouraging rise. Plus, the development pipeline is ahead of 2019 levels, pointing to a sustained recovery in projectstarts over the coming months. The value of projects starting on site averaged £5,212 million per month during the three months to April; an 18% increase against the preceding three months and 37% higher than a year ago. The rise against the preceding three months was due to increases in both the value of major projects starting on site and in underlying market activity (under £100m). At an average of £1,109 million a month, major projects were 23%

higher than during the previous three months and 69% up on a year ago. At £4,104 million the value of underlying projects was 28% up on the previous three months, on a seasonally adjusted basis, and 30% higher than a year ago. The value of contract awards rose 36% against the preceding three months to stand 50% up on a year ago and 12% above the same period in 2019. Major contract awards rose by 44% during the three months to April and were 97% up on a year ago. Underlying contract awards increased by 34% compared to the preceding three months (seasonally adjusted) to stand 38% higher than a year ago. The value of work securing detailed planning consent during the three months to April rose by 3% against the preceding three months and was 37% higher than

a year ago. The value of major projects securing planning approval declined by 22% against the preceding three months but was 5% higher than a year ago. The value of underlying detailed planning approvals grew robustly, rising by 12% against the preceding three months (seasonally adjusted) and by 53% compared to a year ago. The recovery in work on-site stalled during the three months to February, according to the latest official data from ONS, with output slipping by 1.0% against the preceding three months to stand 5.8% down on a year earlier. However, the pause in output growth is expected to be shortlived, with the rise in project-starts lifting on-site activity over the coming months. www.glenigan.com

BSI publishes competence criteria A new set of competence criteria for everyone working on a building has been published by UK national standards body, BSI. The standard, produced after two rounds of public consultation, aims to support construction industry reform, reduce safety risks and increase protection of consumers and occupants of buildings. The new code of practice, named BSI Flex 8670 v3.0 Built environment – Core criteria for building safety in

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competence frameworks – Code of practice sets the core criteria for building safety competence, including fire safety, structural safety and public health to be included in sector-specific frameworks for all individuals working in the built environment. BSI said it would support progressive development of a more consistent approach in the development and use of competence frameworks across the industry. It is published as one part of the government-funded

Built Environment Competence programme. It has been developed by an advisory group of built environment professionals. Although the BSI Flex development process has now concluded, BSI Flex 8670 will be transitioning into BS 8670 in 2022. In the interim, version 3 of BSI Flex 8670 is available to download and use at https://bit.ly/3etiPcm constructionmanagermagazine. com

May/June 2021

INDUSTRY NEWS

Efficiency improvements to West Midlands housing quality housing for homeowners along with long-term cost savings. Passivhaus certified and fire rated to up to 30 minutes, WINFRAMER is a prefabricated installation frame, manufactured to accommodate cavities up to 250mm that allows windows to be supported independently from the face of the wall regardless of any external cladding being in place.

ISO Chemie’s thermal insulating and load bearing bracket support system has been specified as part of energy efficiency improvements to dozens of residential homes in the West Midlands. The move sees WINFRAMER units being retrofitted under an initiative to bring poorly insulated properties in Coventry up to current energy efficiency standards and provide better

Quick and easy to install, the product’s application in Coventry is seen as part of a solution to meet a wider Government strategy to reduce carbon levels in housing that has single skin walls or non-cavity walls - these buildings have a reputation for leaking considerable amounts of energy, heat and sound. Andy Swift, ISO Chemie’s sales and operations manager – UK and ROI, said this type of housing needs attention. He said: “Using WINFRAMER as a platform for the windows to be moved forward, allows a cavity

wall to be created outside the existing one. This can then be filled with insulation to massively improve thermal efficiency. As it’s also very thermally efficient and airtight, WINFRAMER is proving to be an easy and cost-effective way to improve the quality of the Coventry properties.” The composite WINFRAMER brackets can bear heavy windows loads, including bi-fold doors, to provide a reliable, strong and high-performance support frame. Installation is quick with windows attached directly and secured mechanically using either standard fixing screws or fixing lugs in the usual manner. A hinged insulation core combines with the composite wood structural bracket to become an integral part of the overall wall structure, providing compliance with window energy saving regulations (EnEV) and the RAL quality assurance association. www.iso-chemie.eu

New white paper outlines building considerations for commercial rooflight refurbishment A new white paper has been published by VELUX Commercial, looking at the subject of commercial rooflight refurbishment. The document contains: • An overview of the entire refurbishment process, and how it offers opportunities to enhance

May/June 2021

daylighting and ventilation through the specification and installation of new rooflight solutions. • The drivers for refurbishment in different commercial sectors and the considerations based on the building usage. • The need for specialist technical support throughout

a refurbishment project to help achieve the best results - from design through to installation, followed by service and maintenance. The white paper can be downloaded at: www.commercial.velux.co.uk

www.daylightingmag.co.uk

INDUSTRY NEWS

CPA Building Safety Briefing webinar recording available on-line a new Code for Construction Product Information (CCPI) and a recently announced review of the construction products testing system. What changes should industry expect over the coming years and what is yet to be done as part of the building safety agenda post-Grenfell?

A recent CPA (Construction Products Association) webinar on Building Safety is now available as a recording on the CPA website. The webinar is hosted by Peter Caplehorn, CPA’s Chief Executive, and, Fabiola Flamini, CPA’s Events

and Membership Executive. In the first 30 minutes of the webinar, Peter provides businesses with an overview of the changes approaching in the form of a new Building Safety Bill, procurement reform, raising the bar on competency,

The last 10 minutes were dedicated to answering attendees’ questions. This webinar is available for CPA members and non-members. You can view the webinar recording at: www.constructionproducts. org.uk

LOW CARBON GRP DAYLIGHT SOLUTIONS

DIFFUSION

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INDUSTRY NEWS

RCI Show 2021 MA Business which owns and runs the RCI Show took the decision to reschedule the RCI Show from 8th – 9th December 2020 to Wednesday 29th – Thursday 30th September 2021. The event will now take place at the Stadium MK in Milton Keynes where MCRMA is once again a supporting organisation. The RCI Show is the largest UK event where the entire roofing, cladding and insulation supply chain comes together.

In addition to exhibitors showcasing the latest construction products; the RCI Show provides a multitude of dedicated conference sessions keeping you ahead of the latest trends, technologies, legislation and issues influencing your market. Running alongside the conference programme are the accredited CPD seminars. New for 2021, exhibitors will be running free demonstrations of the latest tools and innovations.

Façade Awards 2021 The publishers of RCI magazine have announced that The Façade Awards UK is back for its second year. The event will be taking place on Friday 19 November, 2021, at the Midland Hotel in Manchester, showcasing the very best products and contractors in the industry. From the creative and innovative use of products used on a project, to the complexity of the installation and the

talent of individuals who have demonstrated high quality across the industry, the Façade Awards UK recognises this through a wide range of categories, which cover all aspects of the sector. Entries will be judged by an independent panel of industry figures, who will ensure integrity and rigour in the awards process. Free entries must be submitted by by Friday 11 June, 2021. www.facadeawardsuk.com

UK Construction Week Birmingham 2021 The UK’s largest built environment event returns to the NEC Birmingham on 5th-7th October 2021. Along with four conferences, 15 CPD and Workshop hubs and three major award presentations, UK Construction Week Birmingham 2021 will mark a celebratory focal point

May/June 2021

as construction can share learnings from the recovery and look to a bright future. • The UKCW road to recovery will also be partnered by The Times, with editorial support for the event. www.ukconstructionweek.com

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NEW PROJECTS International Convention Centre for Wales Two variants of Kawneer’s AA®110 curtain walling system, as well as window vents, doors and roof glazing feature on the International Convention Centre for Wales at the Celtic Manor Resort in Newport, South Wales. Kawneer’s AA®110 zonedrained curtain walling, with 65mm sightlines, has been used for the majority of screens to conference rooms, entrances and circulation areas while the mullion-drained equivalent has been used to the auditorium bar and atrium roof light. www.kawneer.com

The Mall, Walthamstow Following a fire in 2019 that caused extensive damage, remedial works along with an additional retail extension are now complete at The Mall, Walthamstow. The innovative combination of glazing and Kalwall adds to the contemporary look of the building as a whole while maximising energy efficiency and allowing for as much daylight as possible to be admitted. thereby reducing the strain on expensive HVAC systems. www.structura-uk. com/kalwall/

May/June 2021

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NEW PROJECTS Preston Station Twinfix installed its Multi-Link-Panel solid polycarbonate glazing system with a bespoke rolled aluminium ladder frame, to replace glazed gables at Preston Railway Station in Lancashire. The gables were last updated in the 1960s and were badly rotten and in need of repair. The project required careful surveying prior to installation, due to the fact that the orginal steel frame had twisted over time. The finished result is now a long lasting and durable feature of this historic listed station. www.twinfix.co.uk

Left Bank 2 Tower, Birmingham High performance building façade products manufactured by Kawneer were specified to handle the challenging wind loads on Birmingham’s tallest exclusively residential tower block. Kawneer’s AA®100 zone-drained and capped curtain walling, complemented by AA®720 top-hung ventilator windows on the first to top floors, with AA®190 TB entrance doors on the ground floor, were specified by Glancy Nicholls Architects. www.kawneer.com

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May/June 2021

INDUSTRIAL BUILDINGS

Don’t Compromise on Rooflight Safety or Service Life By Hambleside Danelaw Rooflights are an integral part of a metal roofing system in modern industrial buildings, bringing natural daylight into the building and thus reducing the dependence on artificial lighting. At the same time, they have to deliver structural integrity, contribute to the non-fragility classification of the overall roof and satisfy the HSE requirements for roof safety. Most reputable rooflight manufacturers can now satisfy the HSE’s preferred option of products delivering long term non-fragile performance.

importantly the rooflight assembly or configuration. Technological developments have led to the introduction of stronger thinner and lighter products, which when used in the correct assembly can give an expected service life well in excess of 30 years. It is generally accepted that the current market expectation

However, regardless of their stated non-fragility classification, industrial rooflights should never be walked on. They perform all of the functions listed above, but are not designed for foot traffic. Walking on rooflights may damage the performance, structural integrity and also risk the safety of those on the roof. The safety performance of a given rooflight must be tested as part of the whole roof assembly including all components needed to install it and the roofing system it is installed in. Successful rigorous testing in accordance with the recommendations from the Advisory Committee for Roofsafety (ACR) has seen the development of GRP rooflights which incorporate a woven continuous glass filament reinforcement mat resulting in Class B non-fragility classification for 30 years. The service life of a rooflight is dependent on several factors, most

May/June 2021

Test rig for non-fragility testing of GRP rooflights

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INDUSTRIAL BUILDINGS

Hambleside Danelaw Zenon rooflight installed in a distribution centre

for service life is a minimum 25 years. Despite this there are systems on the market that fall below this requirement as they are either using long-outdated configurations or materials that aren’t as durable as GRP. And yet this remains a critical consideration to get right. The combination of a long service life and long period of non-fragility offers real benefits to building owners and those accessing the roof, enhancing safety and reducing lifetime costs. In addition, further benefits can be obtained with the use of thinner, lighter and lower embodied carbon alternative materials. Examples of advancements in these areas include sheets reinforced with the woven continuous filament glass mat, and a

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cellulose acetate insulation system that increases the level of light transmission and that is compostable at end of life. Like many elements of the roof assembly, properly specified rooflights can deliver a package of benefits that all help to enhance the overall performance and value of the building. This isn’t something that should be decided at the last minute. Speak to your rooflight manufacturer early in the process. Get a clear statement on the key performance criteria of non-fragility classification and service life expectancy. You may be surprised at what else you can deliver to your client. www.hambleside-danelaw.co.uk

May/June 2021

STAY SAFE

with GRP rooflights from Filon Safety is at the front and centre of our product policy: Our technical expertise has contributed directly to UK rooflight non-fragility classification over decades, with Filon personnel playing key safety roles in influential trade associations including NARM (National Association of Rooflight Manufacturers) and ACR (Advisory Committee for Roofsafety). Our unique, patented Fixsafe system is the only solution that allows profiled rooflights to be safely installed from within the building envelope, without the need to access fragile roof areas. We offer a range of fire grades to provide compliance with Building Regulations. Our Supasafe triple reinforced rooflights provide high impact resistance, spanning and load-bearing capabilities. We’re the UK’s longest established manufacturer of profiled rooflights by continuous process, with a successful track record of excellence in design, product performance and customer support. As you’d expect, we’re also currently employing Covid-secure working practices throughout our operations. Filon: truly a ‘safe pair of hands’ for specifiers.

Telephone 01543 687300 Email: sales@filon.co.uk

www.filon.co.uk

TRADE ASSOCIATIONS

The quiet revolutions in rooflighting A look behind the scenes at the work of NARM, the National Association of Rooflight Manufacturers

The last two decades have seen huge advances in the design and application of rooflighting, bringing important advances in building performance and safety. Many of these have been the result of intense R&D efforts by leading manufacturers. Behind them has been one supporting organisation that’s driven the changes in UK standards & legislation that have made these improvements a day-to-day reality across all sectors of the construction industry and to the wider public NARM, the National Association of Rooflight Manufacturers, represents manufacturers and suppliers of all types of rooflights and has played a pivotal role in establishing the

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effects of rooflighting on building performance and in the development of rooflight standards which protect the marketplace from potentially poorly performing products – as well as promoting best practice among specifiers and installers. Recognised as the UK’s leading independent and impartial authority on rooflighting, NARM’s Technical Committee comprises a team of leading experts, each having been selected from within NARM member companies, to represent the Association. Their work has underpinned many important developments and continues to inform and support the industry…

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TRADE ASSOCIATIONS

Thanks to NARM’s pioneering work in the field, the sustainability benefits of increased natural light levels are now widely understood and applied across the built environment.

ARBON FOO

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IN T

Since then, NARM has also been instrumental in collecting, analysing and interpreting rooflighting data upon which the evolving rooflighting requirements in The Building Regulations Approved Document L

Further studies commissioned by NARM have highlighted means by which solar overheating in buildings can be controlled, and the potential for greater energy savings through the integration of automatically controlled electric lighting, with natural daylighting.

C ER

Soon after the NARM’s formation in the late 1990s, independent research1 commissioned by the Association showed that minimal losses in thermal insulation brought about by the installation of rooflights are greatly offset by the energy savings resulting from reduced demand for electric lighting. Recognising the potential for lower carbon emissions resulting from reduced requirements for electric lighting, a NARM campaign was launched to bring these findings to a wider public, using the slogan: For a smaller carbon footprint, add more rooflights.

(Conservation of fuel & power), are based.

FOR A S MALL

The sustainability revolution

USE 20%

NARM’s ‘carbon footprint’ campaign of the early 2000s raised awareness of the role of rooflights in building energy efficiency

Today, NARM’s freely available on-line Technical Library contains a wealth of impartial, up-to-date information covering the subject of energy performance in respect of glass, thermoplastic and GRP rooflights.

Daylighting and Solar Analysis for Rooflights: Dr. J. Mardaljevic & Prof. K. Lomas, De Montfort University’s Institute of Energy and Sustainable Development

NARM provides a complete library of freely available technical information on its website at www.narm.org.uk

May/June 2021

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TRADE ASSOCIATIONS The safety revolution – for roof workers Since its inception, NARM has focussed considerable resources on improving the safety of roof workers. Working on roofs is a high-risk activity because it involves work at height – and falls through fragile materials, such as aged rooflights and asbestos cement roofing sheets, have historically accounted for a high number of deaths and injuries. To address this issue, the ACR[M]001 ‘Red Book’ test2 was developed by the Advisory Committee for Roofwork (now Advisory Committee for Roofsafety), drawing on data supplied by NARM – an ACR member organisation. This defines a test for non-fragility which can be applied to any roof assembly, intended to indicate whether the roof can support the instantaneous loads imposed by a person falling or stumbling onto it. It is not a product test but products such as rooflights can be tested as part of a roof assembly. It sets a minimum standard for nonfragility and all professionals involved with roofing should be familiar with it. The Health and Safety Executive and many other prominent roofing trade associations are also member organisations of ACR.

the requirement for laminated inner panes on glass rooflights for important safety reasons, bringing pressure on the British Standards Institute for a regulatory amendment. Current British Standards still permit the use of toughened glass (nonlaminated) for inner panes of glass rooflights in some instances, bringing the risk of shattering and falling glass into the room below. Using laminated glass inner panes significantly reduces this risk and is the reason behind the NARM campaign to ensure all glass rooflights have laminated inner panes, following a number of concerning

NARM has published a number of documents on the subject of nonfragility in respect of rooflights. These are available for free download from the NARM website.

NARM’s on-line Technical Library contains a number of documents covering non-fragility in respect of rooflights, including a handy ‘Quickguide’, which outlines the key points of the ACR[M]001 test and classifications.

The safety revolution – for building occupants During the last year, NARM has launched a campaign3 to support 2 3

https://www.the-acr.org/publications/the-red-book/ https://www.narm.org.uk/products/glass/

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May/June 2021

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AZING

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TRADE ASSOCIATIONS

R O AD VERHE

LAMINATED INNER PANE ENDORSED BY

NARM’s current campaign for the use of laminated inner panes on glass rooflights is bringing pressure on the British Standards Institute for a regulatory amendment

incidents involving poorly designed or installed glass rooflights (without laminated inner panes). NARM has also published a number of technical documents relating to fire safety, including a new ‘Quickguide’ entitled ‘Definition of geometric free area for Smoke Vents4’, published in early 2021.

Continuing progress on many fronts… The NARM Council, committees and working groups meet regularly on-line, to address current issues and drive new initiatives. As examples, the Association is currently consulting its membership regarding the CPA’s CCPI (Code for Construction Product Information). NARM has also recently published a post-Brexit Statement on the Construction

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Products Regulation5, and the changes to Product Standards, CE marking and the introduction of UKCA and UKNI marking of products. This document, along with many others, is also available on the NARM website. NARM represents leading manufacturers and suppliers of all types of rooflights into the UK market and works closely with a number of organisations and other trade associations. NARM is a member of the RIBA CPD Providers’ Network; The Construction Products Association and Eurolux, the European trade association representing rooflight suppliers. For further information about NARM, please visit: www.narm.org.uk

https://www.narm.org.uk/new/ wp-content/uploads/2021/03/ NARM-Quickguide-7smokevents.pdf

https://www.narm.org.uk/new/ wp-content/uploads/2021/02/ NTD07.1-Construction-ProductsRegulation-1.pdf

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Trusted to deliver high performing elegant rooflights.

The new neo Advance Skywalk™ Setting the standard for walk on rooflights www.therooflightcompany.co.uk enquiries@therooflightcompany.co.uk | 01993 833155

Trusted by architects, respected by builders, loved by homeowners.

SPECIAL FEATURE

daylight diary APR 2021

Construction products: clarity is key At NARM, the National Association of Rooflight Manufacturers, our purpose is to identify and promote best practice in rooflight specification, installation, maintenance and safety. A key part of this role is to encourage and support clarity and integrity in manufacturers’ technical data and product promotion. NARM is therefore a strong advocate of The Code for Construction Product Information (CCPI), which we see as an important development for the construction product manufacturing sector, seeking to establish a code of independent and robust validation for manufacturer communications in respect of product performance. Following an extensive industry-wide consultation period, which ran from 1st February to the 30th April, the CCPI is currently being reviewed by the CPA’s Marketing Integrity Group (MIG) to consider and take into account, where possible, the feedback of individual organisations and trade bodies that contributed to the consultation. In his role as Chairman of NARM’s Marketing & External Communications Committee, Ian Weakford is an active member of a CPA working group formed in reponse to the Grenfell Tragedy and which supports the

May/June 2021

Marketing Integrity Group. He commented: “We’re all aware of the potential for tragic consequences resulting from ill-informed or overly optimistic product specification decisions. This initiative demonstrates a real commitment by the industry to address these issues. We’re currently consulting with NARM member companies on the subject and look forward to working toward the next steps for CCPI – Assessment & Verification”. For further information about NARM and its activities, please visit www.narm.org.uk FIND OUT MORE ABOUT NARM BECOME A NARM MEMBER NARM CPD MATERIALS

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RIGHTS TO LIGHT

Rights to Light by Royal Appointment? The Crown Estate and the Town and Country Planning Act, by Manuella Nguessan, Rapleys “The Crown estate benefits from additional permitted development rights which apply without a need for express planning permission in order to allow any critical developments to take place and in the interest of national security and defence”. Section 293 of the Town and country Planning Act 1990 defines Crown Land as land in which there is a Crown or a Duchy Interest. This is an interest belonging to a government department or held in trust for the Crown for the purposes of a government department and any interest the secretary of state specifies. This includes a collection of lands and buildings which are occupied and serve any department, office or executive agency of the Crown. The Town and Country Planning Act 2016 applies to the Crown estate in the same manner as any other

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development meaning that the Crown would be required to apply to the local authority for planning permission if they want to develop. However, the Crown estate benefits from additional permitted development rights which apply without a need for express planning permission in order to allow any critical developments to take place and in the interest of national security and defence. Examples of these include Job Centre Plus centres, courts and tribunals and up until the 1st April 2012 Post Office buildings were also part of the Crown Estate under the Royal Mail Group.

May/June 2021

RIGHTS TO LIGHT

Rights to Light A Right to Light is an easement that gives a landowner the right to receive light through defined apertures over neighbouring land. The owner must have enjoyed light through the defined apertures for at least 20 years in order to benefit from the Right to Light via the Prescription Act 1832. The amount of light someone is entitled to has evolved through caselaw with the leading legal authority being Colls v Home and Colonial Stores Ltd [1904] UKHL 1. In this Judgement Lord Davey ruled that the dominant owner is entitled to “ordinary notions of mankind for the comfortable use and enjoyment of his house as a dwelling-house, if it is a dwelling-house, or for the beneficial use and occupation of the house if it is a warehouse, a shop, or other place of business.”.

May/June 2021

More recently Lord Justice Goff in Allen v Greenwood [1979] 2 WLR 187, summarised what the dominant owner’s entitlement would be. This was summarised as “the light required for the beneficial use of the building for any ordinary purpose for which it is adapted”. The Waldram method of calculating “sufficient lighting” has been widely accepted in rights to light cases to be that a room should receive 0.2% of the sky over 50-55% of the room. If less than 50-55% of the room is sufficiently lit, this falls under the “grumble line” in which actionable injury can be enforced. Over time, the method of calculating sufficient light has evolved greatly through technological advances and expertise on the subject matter. This involves plotting the area of a room which receives adequate light before the proposed infringement and comparing it with the area that will be

Properties that are neighbours to a Crown building will gain a Right to Light 20 years from the point the Crown property is sold to another party, and the new owner is registered at the Land Registry.

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RIGHTS TO LIGHT sufficiently lit after the construction of the proposed development. This is a valuable right as light is important in increasing the utility, value and amenity of a room or property. If a neighbour suspects that a development may affect their Rights to Light, they have a right to seek relief through the courts which could lead to an injunction to either stop building or remove the offending parts of the development. In many cases damages are be awarded for an actionable injury, or negotiated separately, although this is dependent on the facts of the case. However, Rights to Light do not apply to the Crown Estates as demonstrated by Perry V Eames [1891] due to the fact that the Prescription Act cannot be asserted against the Crown. As a result, a neighbour to a Crown Estate will not have any Rights to Light over the land, regardless of the length of time they have had ownership of the property, unless this was an express agreement between the two parties. Properties that are neighbours to a Crown building will gain a Right to Light 20 years from the point the Crown property is sold to another party, and the new owner is registered at the Land Registry.

What does this mean for developers? Increasingly, there have been redevelopments of Crown property. Whilst this may be problematic for properties neighbouring a Crown Estate especially if there is increased massing, this can be great enabler for developers. Due to this exemption, developers will be able to redevelop previously used Crown land without the worry of infringing on Rights to Light.

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Nonetheless achieving adequate daylight is still very important across developments and so will still be a consideration at planning application stage. The BRE Report 209 Site Layout Planning for Daylight & Sunlight has been designed to provide guidance to developers to help them maintain adequate lighting in neighbouring properties and achieve it within proposed developments. As a result, light levels in neighbouring properties are still safeguarded in the absence of a Right to Light. The BRE guidance acts as a way of ensuring proposals are protecting the light of existing neighbouring properties as well as ensuring the adequacy of light for occupiers within new developments. So, whilst an injunction or damages may not be a pressing issue when converting a Crown building to a residential property, achieving the BRE recommendations would need to be taken very seriously to ensure adequate lighting is preserved in neighbouring properties and planning permission is achieved. Rapleys Neighbourly Matters team advices on Rights to Light, Daylight & Sunlight, Party Walls and Access Arrangements, representing developers and neighbours to development across the UK. www.rapleys.com

May/June 2021

FAÇADES

Façade designs band together at Durham University A careful combination of A2 fire rated soffit panels, rainscreen cladding and mesh screens from Proteus Facades has helped band together the impressive new £42m Sciences Centre at Durham University. A careful combination of A2 fire rated soffit panels, rainscreen cladding and mesh screens from Proteus Facades has helped band together the impressive new £42m Sciences Centre at Durham University. Based within the grounds of the Upper Mountjoy Campus, the new Mathematical Sciences and Computer Science building has been developed to create synergy between the two departments, which have been earmarked for significant growth. The building features state-of-the-art teaching facilities and office space, including a specialist IT Lab with designated server room, a 120-seat tiered lecture theatre and tutorial rooms. While a café and breakout spaces, as well as four enclosed courtyards make up the communal areas. Creating a bright space for students, staff and visitors to meet and relax, Proteus Facades manufactured striking 2.0mm Aluminium Proteus IP interlocking planks with a PPC Traffic White Matte (RAL 9016) finish for use on the façades of the four internal courtyards. GSS Architecture chose the Proteus IP aluminium PPC in Traffic White because it accentuates and reflects natural light creating an enhanced ambience in the teaching spaces that face onto the courtyards, whilst complementing the

May/June 2021

glass curtain walling system. A combination that together creates a striking minimalistic appearance that lifts the aesthetics of each courtyard and creates light filled spaces for students and staff to enjoy. The Proteus IP panels, installed by Longworth Building Services, were fixed in a band like design that reflects the aesthetics of the external façade facing onto the campus. In order to maintain this ‘banding’ effect, the planks continue behind the glass curtain-walling systems, which required exacting tolerances. Proteus Facades also manufactured 3.0mm Aluminium large format Proteus SC soffit panels with a PPC Interpon D1036 RAL 7016 Matt Finish, for installation above the ground floor, first and second perimeter stepped soffits. Proteus SC is an engineered panel system that is offered in either solid, perforated or mesh panel formats. By utilising an extensive range of metals, colours, textures and forms it can add another dimension to any façade cladding project. The system can be manufactured between 1mm and 5mm in thickness and an acoustic insulation layer encapsulated within the panel. Specified with an A2 fire certification, which prevents the use of traditional subframe bonding methods, the soffit panels were manufactured with a

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FAÇADES

bespoke stiffening system and fixed to achieve the required rating, as well as structural integrity and an optically flat surface. Proteus Facades worked closely with Longworth Building Services to guide them on the most suitable material for use on the soffit panels that would achieve the desired aesthetics whilst meeting budgetary expectations. Aluminium was chosen as it provided a cost-effective solution and one that was available in optimum coil sizes that allowed fabrication of the 2m long soffit panels. The PPC Interpon D1036 RAL 7016 Matt Finish was specified to complement the band-like copper cladding on the building’s main façade. Proteus and Longworth Building Services final element continued further across Campus, Proteus SC 3mm anodised mesh aluminium panels with a Bronze Anodised Anolok

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(545) finish were also specified for use around the bike storage and ancillary areas. Proteus again devised a bespoke method of fixing the mesh into the frame, so it maintained integrity and colour match of the anodising on both elements. Developed by main contractor, Sir Robert McAlpine, the new Mathematical Sciences and Computer Science building at Durham University forms part of a masterplan to provide improved infrastructure and additional teaching and research space. The facility will create greater integration between students and staff. It will also enable the University to increase the number of undergraduates, postgraduate researchers and employees for the Mathematical Sciences and Computer Science departments over the next five years. www.proteusfacades.com

May/June 2021

CONSERVATION ROOFLIGHTS

From car showroom to daylight-flooded home Stella Rooflight has supplied 12 bespoke conservation rooflights for a stunning conversion project in the seaside town of Lytham St Annes in Lancashire. The project to convert a Late Edwardian purpose-built garage and car showroom into a stunning 21st Century modern home was the dream of architect and homeowner Sean Kember. The property was first designed and constructed in 1909 by local architect Thomas Hedges, for the Williams Brothers. The building remained a car showroom for over 100 years and to this day the building remains somewhat of an icon in the local area.

550mm x 740mm. A much larger non opening rooflight which was sized at 3000mm wide x 3500mm high was designed as a grand centre piece in the roof. This rooflight was supplied in two sections which were purpose designed to sit one on top of the other, with each section being divided into three panes.

Conscious of the building’s local history and importance the new owners were careful to preserve the original fabric of the building, while undertaking the much needed renovation works, which would breathe new life into the building and transform it into their new dream seaside home. A large part of the renovation and conversion works included the complete rebuilding of the old steel structured roof with new timbers and the installation of large conservation rooflights, which would flood the large open internal space with natural daylight. Stella Rooflight were commissioned to produce a total of 12 bespoke conservation rooflights to fit the new openings. 10 smaller rooflights, which comprised of 6 opening and 4 fixed frames, were designed to fit internal rafters of 690mm x 940mm and

May/June 2021

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CONSERVATION ROOFLIGHTS

All 12 rooflights were manufactured using marine grade stainless steel and finished in a high quality C5 marine grade black powder coating. An important consideration given the building’s coastal location and the propensity to rust associated with mild carbon steel rooflights. The Stella rooflights also included a high specification glazing with BioClean Self-Clean, Solar Control outer pane with a warm edge spacer filled with Argon Gas. The internal glass panel used Planitherm Comfort Plus to provide the perfect balance of light, warmth and comfort. The rooflight was finished internally with a stunning American Ash interior liner. Due to the size of the larger rooflights, a specialist crane was required to lift the rooflights from the delivery vehicle, over the building and directly into place. The installation required careful planning, which was overseen by local specialist roofing contractor Ben Valentine-Lynden from Blackpool Industrial Roofing. Ben said: “Throughout the process we dealt directly with Paul at Stella. He was incredibly helpful throughout, advising us on the

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whole installation from the crane lift to weather proofing the roof lights. Paul was also happy to schedule the arrival of the rooflights to suit us and the weather, on arrival the units were packaged excellently and made for an easy transition from wagon to roof. “Overall I think these are a great product, easy enough to install and the finished look is fantastic. Would definitely recommend and would use again.” Sean Kember, Client and Director of Gilling Dod Architects, said: “Stella’s technical team worked closely with us throughout the process and were a great help in making sure that everything ran smoothly. As you would expect we did a great deal of research before deciding to run with Stella Rooflights, and from your initial assistance with the specification through to the installation on site, you have been great to work with. I would also like to say that the quality of the rooflights is excellent! Thank you.” For further information about Gilling Dod Architects visit https://www. gillingdod.com www.stellarooflight.co.uk

May/June 2021

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... Netherlands Institute for Sound and Vision Hilversum, Netherlands This building divides into three distinct elements: the national archives: the TV and Radio exhibition centre for the public; and a research institute. The glass façade is based on original TV-images that were taken from the archives of the institute and translated into 2100 different coloured high relief glass panels, composed by graphic designer Jaap Drupsteen. In this way the coloured and tempered quality of light transmitted through contemporary stained glass windows was achieved, giving the building a lightly tactile surface, where iconic images of Dutch TV-history appear and disappear during the day in the breaking of the light. Daylight also streams in through skylights in the central ‘canyon’ area, down to the lowest levels of the archives vault.

May/June 2021

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DAYLIGHTING ICONS

Roman Babakin / Shutterstock. com

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May/June 2021

@Daylighting_Mag

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

May/June 2021

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DAYLIGHTING MAGAZINE

DAYLIGHTING Magazine back issues Click on the cover images below to open back issues Issue 2 Jan/Feb 2017

Issue 3 Mar/Apr 2017

Issue 4 May/Jun 2017

Issue 5 July/August 2017

DESIGN & TECHNOLOGY FOR BETTER BUILDINGS

IN THIS ISSUE:

Passivhaus Daylighting

Daylighting in education

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

DAYLIGHTING & VENTILATION TUBULAR DAYLIGHT SYSTEMS GRP ROOFLIGHTS RIGHTS TO LIGHT AND MORE

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IN THIS ISSUE:

Daylighting at work

Controlling heat & glare

CLIMATE BASED DAYLIGHT MODELLING BIM GLASS ROOFLIGHTS DAYLIGHTING INNOVATIONS AND MORE

DAYLIGHTING AT HOME DAYLIGHTING IN FARMING DAYLIGHT & NEIGHBOURLY MATTERS AND MORE

DAYLIGHTING is published by: Issue 6 September/October 2017

Issue 7 November/December 2017

Issue 8 January/February 2018

Issue 9 March/April 2018

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DESIGN & TECHNOLOGY FOR BETTER BUILDINGS

IN THIS ISSUE:

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

Issue 13 November/December 2018

IN THIS ISSUE:

Daylighting in FACTORIES & WAREHOUSES ENERGY SAVING WITH LIGHTING CONTROLS CURTAIN WALLING AND MORE

Issue 20 January/February 2020

THE INNOVATION ISSUE

DELIVERING DAYLIGHT TO DUNDEE’S NEW V&A

IN THIS ISSUE:

PLUS: • ROOFLIGHTS & SECURITY • TRANSLUCENT CLADDING • ROOF SAFETY • NEWS • PROJECTS AND MORE

DAYLIGHT MODELLING REFURBISHMENT SMART GLAZING PLUS • NEWS • PROJECTS • AND MORE

IN THIS ISSUE: DAYLIGHTING & VENTILATION IN THE

IN THIS ISSUE:

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

Issue 24 September/October 2020

DAYLIGHT PLANNING

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

Issue 26 January/February 2021

HOW ROOFLIGHTS CONTRIBUTE TO SUSTAINABLE BUILDING DESIGN

PLUS:

ROOFLGHT REFURBISHMENT SOLAR SHADING GLASS RECYCLING NEWS LATEST PROJECTS AND MORE

PLUS:

DAYLIGHT & SUNLIGHT PLANNING INDUSTRIAL BUILDINGS SCHOOLS LATEST PROJECTS AND MORE

2021 Media Info Information for advertisers is contained in our media pack, which is available on our website.

MEDIA INFO

2021 THE BI-MONTHLY DIGITAL MAGAZINE FOR SPECIFIERS & CONSTRUCTION PROFESSIONALS

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WEBSITE www.daylightingmag.co.uK

ENERGY EFFICIENCY

Is the new European Standard measuring daylight in buildings is too complicated?

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EDITOR Paul Bennett paul@daylightingmag.co.uk Tel: 01295 711666 Mobile: 07900 895110

May/June 2021

DAYLIGHTING Magazine is published by Bennett B2B, a UK communications and publishing business offering a complete range of specialist services for companies serving the construction sector: • On-line publishing • Copywriting • Design for web and print • Photography • Video & drone services • 3D imaging • PR • Consultancy Telephone 01295 711666 Email: paul@bennettb2b.co.uk www.bennettb2b.co.uk

DAYLIGHTING Magazine issue 28 May/June 2021

Articles inside

From car showroom to daylight-flooded home

Rights to Light by Royal Appointment?

The quiet revolutions in rooflighting

Don’t Compromise on Rooflight Safety or Service Life