DAYLIGHTING Magazine issue 36 Summer 2023

MAXIMUM

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.

supplied

ROOFLIGHT FLOODS HOME STUDIO Multipart Flushglaze with natural daylight in Victorian era home

Natural sunlight and space were two of the key objectives for this extension located in South London. The client, a renowned artist, writer, and former fine arts lecturer, had recently moved to London from Oxfordshire to be closer to her family, and was looking to produce a peaceful, tranquil space to help improve creativity when at work.

She said: “I had no fixed ideas about what I wanted, but I wanted more space because it was very small, very dark and I just needed to breathe”.

Looking to update this Victorian house into a future proof property, Atelier Baulier Architects worked with the client to achieve the radical vision of a virtually half opened roof through the use of a rooflight. Glazing Vision’s Multi-Part Flushglaze rooflight was specified at just short of 8 metres which immerses the entire extension in daylight making the 16 sq. m. space feel much larger, hoping to improve

the client’s productivity and focus. The art studio is located under the double height volume, enjoying even light levels throughout the day. The writing room takes the vantage point of the mezzanine above the bathroom and is accessed from the first floor level through an opening made in the gable.

Keen to retain discreet detailing to ensure the rooflight framing wasn’t distracting from the design, the Multi Part Rooflight was specified with silicone joints, as opposed to aluminium balustrades, making the product much sleeker. To help daylight flood the room even further,

the unit was specified with three Wall Abutments on the high left and right side. The Wall Abutments are not visible from the internal view, this helped to enhance the desired discreet detailing.

Aurore Baulier, Director, Atelier Baulier Architects, said:“We aimed to maximise the potential of this unusual site. Rather than subdividing the space the programme is housed within one continuous volume, allowing the daylight to flow through.” www.glazingvision.co.uk

WELCOME TO THE NEXT CHAPTER!

Since the last issue of Daylighting Magazine, I’m delighted to report that we’ve had some positive changes, in the form of increased publishing, design and administration resources, as well as a greatly increased circulation.

In my continuing role as editor, I’m now part of a team, having joined forces with Constructive Media: a successful specialist publishing business serving the wider construction industry.

DAYLIGHTING magazine now sits within Constructive Media’s niche publishing portfolio and will benefit from significant investment. For the first time DAYLIGHTING will also be available in print, with 1000+ copies being mailed out to decision makers within the related glazing procurement industry. Digital subscribers will have the option to opt-in to receive a hard copy.

Please contact daylighting@constructivemedia.co.uk for more information on this.

The magazine will continue to provide a regular platform for high quality editorial of interest to specifiers, designers, architects, developers and other professionals working in the UK building industry – as well as homeowners and self-builders.

In this issue, you’ll find lots of interesting content, with articles covering subjects as diverse as Passivhaus daylighting, ‘walk-on’ rooflights, safety for roofworkers, and more. Plus some great case studies and latest news from around the industry.

Paul Bennett - Editor paul@daylightingmag.co.uk

MAXIMUM Daylight with energy efficiency

The energy-efficiency qualities of structural components have become an all-important factor in contemporary construction and Passivhaus design, as the highest standard of energy efficiency.

The concept of ultra-high-efficiency Passivhaus design is now wellestablished among the UK design community, and architects have embraced the idea to deliver high standards of comfort and health, whilst reducing building energy usage.

Certified Passivhaus rooflights are an essential feature in contributing to the achievement of such high levels of efficiency in the design and construction of Passivhaus buildings. By providing natural daylight and ventilation, building users require very little energy for lighting, heating and cooling.

The LAMILUX Glass Roof PR60 Passivhaus sets the benchmark for energy efficiency standards for atrium glazing. It has been independently assessed by the

Passive House Institute and awarded the highest efficiency rating - the phA advanced component classification. The system features a ucwi value for the complete skylight of <= 0.82 w/ m²k, utilising warm edge triple layer glazing with ‘super spacer,’ as standard.

For smaller areas, the LAMILUX Glass Skylight FE Passivhaus flat roof modular Passivhaus rooflights offer an outstanding solution, with a USL value of <= 0.84 W/m²K. Minimum heat loss is achieved due to the frame system design whilst the narrow frame profiles maximise solar gain.

As well as state-of-the-art thermal performance, both LAMILUX Passivhaus rooflight systems offer excellent aesthetics with a wide range of sizes, options and accessories.

All LAMILUX Passivhaus rooflights feature:

• Independent certification by the Passive House Institute

• phA Advanced components: the highest efficiency class

• Easy PHPP calculations: data pre-loaded in PHPP software

• Isothermally balanced structure: 12.6° isothermal line remains within the rooflight structure, thus preventing condensation and mould formation, improving comfort & hygiene

• Eliminated risk and the associated costs of failure you face if using non-certified components

• Insulated upstand kerb: covered by certification with a U-value of just 0.3W/m²k and supplied as standard with the modular flat roof Passivhaus rooflights - it provides the perfect structural roof interface

• Design freedom: glass roof system can be installed ≥ 3° pitch, meaning you can design atriums any shape, size & inclination

LAMILUX have worked on the majority of the exemplary Passivhaus projects in the UK, including Harris Academy Secondary School and George Davis Medical Building at University of Leicester. Each Passivhaus project demonstrates stringent installation quality control measures and a competent and suitably trained workforce – this is extremely important for achieving the correct installation interfaces.

The importance of high-quality components and expert advice on Passivhaus buildings is essential, which is why with the LAMILUX Passivhaus Skylights and Glass Roofs, you are in safe hands in terms of energy efficiency and technical support.

For more information please visit: www.lamiluxskylights.co.uk

REPLACEMENT ROOFLIGHTS Howells Supplies For Barkers Department Store

Barkers is a family department store and a Northallerton institution. Dating back to 1882 the store has a fascinating history and now, in its 140th year, it is run by the fifth generation. Over the years, Barkers has expanded, buying out neighbouring properties to become a thriving destination store.

“Unfortunately, running a building that’s over 140 years old means there’s lots of maintenance involved,” says Iain Macleod, maintenance manager for Barkers. “Joining neighbouring properties together means that the store is on different levels, with different roofing and windows with different requirements, which can be quite a task for the maintenance team.”

Last year, Barkers embarked on a planned specialist project –to replace the rooflights in all four atriums positioned in the centre of the store above the ladies’ fashion department.

Howells Patent Glazing was appointed by Barkers to supply and install the replacement rooflights. “I found Howells through a contractor we initially looked at using to do the whole roof project, before deciding to manage the project myself,” continues, Iain.

“After looking on their website at some previous projects they had done, and having a few conversations with Walter Howells, I was confident that they were the best contractor to go with.”

Four bespoke roof lights

Using its HG57 medium duty selfsupporting glazing bar powder coated in RAL 7024 matt, Howells designed and manufactured four roof lights.

The roof lights feature 28mm double glazed units comprising an outer pane of 6mm toughened clear solar control with self-clean coating; 16mm argon filled cavity with black warm edge spacer; and 6mm toughened inner pane. The centre pane achieves U-value 1.0W/m2K.

The opening size of the first roof light measures 9660mm and includes three opening lights operated by 240V actuators each wired to an internal control panel with rain and temperature sensors.

The second is a smaller mono pitched roof light with no openings, measuring 3911mm wide. Numbers three and four are single pitch roof lights with an opening size of 7120mm and three opening lights each.

Challenging installation

There were many challenges associated with this project, for both Barkers and Howells. The biggest problem for Howells was installing during an intense heat wave. At peak times the high temperature caused the bars and glass to heat up and they became too hot to handle. Working at height also meant that the installation team needed additional sun protection and had to stay hydrated.

Howells introduced a shorter working day to prevent heat exhaustion. To avoid delays caused by the searing heat, Howells employed a second installation team to speed up the installation. The roof lights were completed in around one month.

Barkers faced different issues during construction. “Trying to keep the disruption to a minimum on the shop floor during our summer sale was particularly tricky,” continues, Iain. “Losing large areas of the shop floor meant having to temporarily relocate departments and concessions while the work was going on.

“Another big challenge was keeping the premises secure overnight when the old roof lights had been taken out. We had to install timber hoarding inside, underneath the roof lights, to maintain the security of the store.”

Importance of natural light for customer experience

The roof lights are vital to the store’s unique shopping experience, allowing natural light to flood the upper floor. “Natural light is important for our customers to see and appreciate a true reflection of the colour of the clothes and accessories. Sometimes colours can look completely different under artificial light,” continues, Iain.

The day lighting also supports Barkers’s commitment to looking after the environment, helping to reduce dependency on electric lighting. In addition, the recent installation of solar panels, as well as LED lighting and a Bio-Mass boiler means that both stores and distribution centre are incredibly energy efficient.

Iain concludes, “The whole experience of working with Howells, from start to finish, has been fantastic. From my initial conversations with Walter, to working with the installation team on site, I couldn’t fault anyone. Warren (Lowe, draughtsman at Howells Patent Glazing) was great as well. He was very helpful and organised the job perfectly.”

To find out more about Howells Patent Glazing and its products and services please visit:

www.howellsglazing.co.uk

PASSIVHAUS STANDARD The

Buildings are a significant culprit of carbon emissions – accountable for 35% of total global energy consumption. Passivhaus is an international standard for energy efficiency in a building, which reduces the building's ecological footprint.

A Passivhaus design creates a comfortable and consistent interior climate without an active heating or cooling system - hence the term Passivhaus (Passive House). It achieves this by combining key features such as high-quality insulation and ventilation.

In a standard building, heat is usually lost through small openings like cracks, inefficient windows, or overall poor insulation. Heat flows from hot to cold areas which are known as the “thermal bridge.” A thermal bridge acts as a heat highway that leads straight to the outside of the building causing inconsistent internal temperatures.

A Passivhaus building eliminates this by sealing these areas. High specification insulation and ventilation help prevent heat loss and regulate temperatures so that building occupants remain comfortable, whatever the external climate.

Since there is no active heating system, a passive building uses “free heat”, generated by electrical and gas appliances such as ovens and lightbulbs as well as body temperature. In warmer climates, where heating isn’t as necessary, a passive building uses shade to help cool the internal temperature — making for a highly efficient indoor environment, irrespective of location.

To achieve the rigorous standards set by the Passivhaus Institute, every aspect of building design must be carefully considered, including the selection and placement of windows, doors and rooflights. These elements play a critical role in ensuring optimal energy performance while maintaining functionality and aesthetic appeal.

High-Quality Insulation and Airtightness

Windows, doors and rooflights in Passivhaus buildings must adhere to stringent insulation and airtightness requirements. The frames and glazing are typically designed to have low U-values,

and how daylight plays a key role

indicating their ability to prevent heat transfer. Triple-glazed windows with thermally broken frames are commonly used to minimize thermal bridging and maximize insulation. High specification rooflights carrying Passivhaus certification are also available. By reducing heat loss, these products contribute significantly to the overall energy efficiency of the building envelope.

Strategic Placement for Solar Gain and Shading

Passivhaus design leverages the sun's energy to heat the building during colder months while minimizing excessive heat gain in warmer months. The strategic placement of windows, doors and rooflights plays a crucial role in achieving this balance. South-facing windows are designed to maximize solar heat gain during winter, while overhangs or shading devices help prevent overheating in summer.

Careful consideration is given to sizing and orientation to optimize daylighting and passive solar heating, reducing the need for artificial lighting and heating systems.

Ventilation and Heat Recovery

Windows and rooflights can also contribute to the ventilation strategy in Passivhaus buildings. While airtightness is essential for energy efficiency, controlled ventilation is crucial for maintaining indoor air quality. Energy recovery ventilation systems are commonly integrated with windows or doors to ensure a continuous supply of fresh air while recovering heat from the outgoing air. This approach not only enhances energy efficiency but also creates a healthier and more comfortable living or working environment.

Functionality, Design, and Comfort

While energy efficiency is a priority in Passivhaus design, functionality, design, and comfort are equally important. Occupants should have ease of use, adequate natural light and views to the outdoors. The design and operation of windows, doors and rooflights must consider factors such as ease of cleaning, security, and sound insulation. Proper selection of glazing, frames, and hardware contributes to noise reduction and enhances overall comfort within the building.

By carefully selecting and installing windows and doors, Passivhaus designers can create sustainable buildings that prioritize energy efficiency without compromising functionality or aesthetic appeal. The result is a harmonious integration of energy-conscious design principles with the needs and desires of occupants.

paul@daylightingmag.co.uk

YOUR HOME your design, your build

The National Self Build & Renovation Centre (NSBRC) is the UK'S only permanent venue for independent homebuilding advice & support.

Established in 2007, we have helped a quarter of a million visitors build their own dream home or extend and improve existing properties.

Located on J16 of the M4, Swindon, our unique venue, covering 67,000ft2, features several full-size houses, interactive educational zones – incorporating many life-size exhibits – and a huge ‘Trade Village’ with over 200 specialist exhibitors, showcasing the very best products and technologies.

Experts on our free helpdesk (staffed Wednesday to Sunday) are here to discuss visitors plans and ideas, share their experience, and signpost people to relevant professionals and suppliers who can help make their project a success.

Aside from being open six days a week, we produce a full calendar of shows, themed workshops and courses covering key topics, from plot finding and planning to funding and heating options.

We run several ‘eco’ events including our popular Eco Workshops and our Passivhaus Workshop’s produced in partnership with the Passivhaus Trust.

The NSBRC was named Wiltshire’s small business of the year in 2017 and in the same year won a Build It award for Outstanding Contribution to Self Build. In 2021 we won the Employee Ownership Association’s award for Business Resilience following our response to the pandemic.

We believe people deserve better, sustainable homes. We help achieve this by delivering our three key promises:

• We’ll inspire you by showcasing the very best building methods, trends and technologies.

• We’ll inform you with our range of shows, workshops, courses and educational tours.

• We’ll always offer impartial advice you can trust.

Did you know?

In November 2014 a new company was formed to operate the National Self Build & Renovation Centre. This business (The Homebuilding Centre Limited) is employee owned. Our team of employee-owners have a genuine stake in the business via our ‘hybrid’ ownership model.

We have a combination of shares held by our Employee Ownership Trust (our largest share-holder), direct share-holders (all held by employees) and a Share Incentive Plan.

This model allows us to reward our team well, and to share part of our profit if we collectively feel we want to. More importantly, perhaps, the culture that employee-ownership inevitably brings, allows us to work

with openness and transparency, sharing ideas and feedback in a caring environment. We are passionate about providing the best experience for our visitors, exhibitors and conferencing guests.

We were thrilled to receive our 500th Google review in April 2023, and we are currently averaging a score of 4.7/5, which we hope reflects the experience that people enjoy with us.

The NSBRC is open six days a week for visitors. Our standard opening hours are: Tuesday - Saturday: 10:00am - 17:30pm • Sunday: 10:00am - 16:30pm • www.nsbrc.co.uk

Take a walk on the

CREATIVE SIDE

Recent years have seen a surge in popularity of what have become known as ‘walk-on’ rooflights. These are very high specification glass structures designed to floor loadings and installed in-plane with external floors on roof decks and roof terraces where pedestrian access is unrestricted.

Notable examples can be seen as tourist attractions all over the world, on towers, bridges and other structures offering a high viewpoint. More recently, these ‘walk-on’ rooflights have become more widely available, with many now providing a means by which homeowners are able to improve space utilisation offered by roof areas.

Making the most of daylight

It’s an exciting prospect: a fully accessible roof terrace with transparent areas allowing abundant daylight into the room below, as well as a visual connection between the two floors.

Research has proven that natural daylight plays a vital role in supporting health and wellbeing, as well as providing strong aesthetic appeal and improved utility in interior spaces.

However, there are many points to consider with this type of installation.

Structural Considerations

Whilst there are many rooflight glazing options available in today’s market, the only suitable material for rooflights designed for deliberate foot traffic is glass of a very high specification, to CWCT (Centre for Window & Cladding Technology) Class O rating for non-fragility.

The outer pane must be both toughened and laminated, and must be specifically designed for the pane size and method of support. The outer pane will usually comprise 3 leaves laminated together, sometimes with an additional sacrificial annealed leaf on the outer surface, typically giving a total thickness of 30-40mm for the outer pane alone. This results in a product which is capable of withstanding floor loadings – and is therefore extremely heavy, weighing typically between 95 kg/m2 and 110 kg/m2. This must be correctly supported, so is not be suitable for roof structures which do not meet floor loading standards.

Polycarbonate or GRP glazing can NEVER be specified for applications designed for deliberate foot traffic. It’s also extremely important to note that rooflights with CWCT nonfragility ratings of Class 1, Class 2 or Class 3 are not designed for regular foot traffic and should never be considered for this type of application.

Roof access

As they are always installed as part of the roof structure, walk-on rooflights are fixed installations and therefore not suitable as a means of providing roof access. A variety of opening rooflight options are available to allow safe roof access via an internal staircase, but these are not suitable for regular foot traffic, so designs should take this into consideration.

Safety & privacy

Glass can become slippery when wet – a factor that should be taken into consideration when specifying walk-on rooflights. This is of particular importance when the glass is being installed in public spaces. However, on private dwellings it is less likely that the glass will be used if it is raining.

Applying an anti-slip glass surface finish can reduce the risk of slippages and the same finish can also provide some obscurity to the glass if required for privacy reasons.

A screen printed surface that includes particles within the ink

to create a rough texture can be applied to the glass in a variety of patterns, which will significantly increase the slip resistance of the glass. Alternatively the surface of the glass can be sand blasted which will result in more diffused light to the areas below the rooflight. Other possibilities to explore…

Walk-on rooflights aren’t only for roof terraces. I’ve also seen some clever installations in gardens adjoining houses, where basement areas extend beyond the external walls of the property, as well as internal applications allowing light to pass between floors of a building.

Walk-on rooflights have revolutionised the way we perceive and utilise rooftop spaces. By offering enhanced accessibility, abundant natural light, high levels of safety, and customisable design options, they have become essential elements in many notable residential, commercial, and public settings. paul@daylightingmag.co.uk

ROOFLIGHTS Working Safely With

Mark Wilcox, Safety Representative for NARM, the National Association of Rooflight Manufacturers, outlines current safety guidance in respect of working with rooflights.

NARM was formed in the late 1990s, to provide a unified voice for the UK’s rooflight industry and to support best practice in rooflight specification and installation. The Association plays an important role in commissioning research, liaising with industry bodies and informing government and standards bodies in respect of all aspects of rooflighting.

Over the years, a number of topics have remained central to NARM’s work, key among these being safety for roof workers. In my role as NARM’s safety representative and sitting on the UK’s Advisory Committee for Roofsafety* (ACR), I’m proud to be playing a part in this important work.

Rooflights and non-fragility

In the mid 1990s, the HSE (Health and Safety Executive) stated that all roofing products should be

manufactured to be ‘non-fragile’ when fixed. However they did not define what was ‘non-fragile’. It was the rooflight industry that started discussions with the HSE to establish a universal test that to define non-fragility. All trade bodies associated with the manufacture of roofs and their components formed an organisation called the Advisory Committee for Roofsafety (ACR).

NARM works in close collaboration with ACR and has contributed to the widely referenced Red Book: ACR(M)001 “Test for Non-Fragility of Large Element Roofing Assemblies” 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 on it by a person falling or stumbling on it. It is not a product test but products such as rooflights can be tested as part of a roof assembly.

NARM built on that excellent work by collating extensive test data from member companies, to create a Technical Document entitled NTD03 Application of ACR[M]001 ‘Test For Non-Fragility of Large Element Roofing Assemblies to GRP Profiled Rooflight Sheeting’. This provides comprehensive coverage of nonfragility requirements and ratings for industrial rooflights.

In the case of glass rooflights, there are specific safety issues which require a different testing standard. Glass may pass the ACR soft body impact test, but it is particularly susceptible to hard body impacts that do not form part of the ACR test. This has been recognised by the glass industry for some time and as a result the Centre for Window and Cladding Technology (CWCT) devised specific nonfragility tests for large area glazing.

These are referenced in the latest issue of ACR’s Red Book and NARM has published a document entitled Understanding CWCT Classifications of Rooflight Types, providing practical guidance for installers and specifiers.

Whatever CWCT classification is required for a given application, NARM strongly advocates the use of laminated inner panes on glass rooflights, to avoid the risk of glass shattering and falling on building occupants - as well as providing increased safety for roof workers.

It’s important to note that nonfragility of rooflights is a complex subject which can be influenced by many different factors, including material selection, design and the competence of the installer. For this reason, over the years, NARM has advocated that whatever the nonfragility rating or age of a rooflight, it should be considered as if it may be fragile and foot traffic on rooflights should always be avoided

In recent years, the increasing popularity of what have become termed ‘walk-on rooflights’ has created some confusion in this respect, but these are highly specialised products designed for intentional foot traffic on roof terraces and other applications, as outlined below.

Understanding the differences between ‘non-fragile’ and

‘walkon’ rooflights

The only suitable material for rooflights designed for deliberate foot traffic is glass. The outer pane must be both toughened and laminated, and must be specifically designed for the pane size and method of support. It will usually comprise 3 leaves laminated together, sometimes with an additional sacrificial annealed leaf on the outer surface, typically giving a total thickness of 30-40mm for the outer pane alone. This results in an extremely heavy product which must be correctly supported – and would not be suitable for many roof structures.

We have published guidance to clarify definitions of ‘walk-on’ rooflights, to avoid potentially dangerous specification errors. Our Technical Document NTD11 Understanding the differences between ‘non-fragile’ rooflights and ‘walk-on’ rooflights for deliberate foot traffic provides details and definitions.

Working at height – always put safety first

This article has focussed on safety guidelines and standards relating to rooflights. However, it’s vitally important to be aware of the wider picture relating to safe working practices when working at height. The ACR has published a suite of authoritative guidance documents covering this important subject. These can be accessed free of charge at www.the-acr.org or via the NARM website.

For free access to any of the documents outlined in this article, or for further information about our work, please visit www.narm.org.uk

*Formerly The Advisory Committee for Roofwork

Mark Wilcox is Safety Representative for NARM, the National Association of Rooflight Manufacturers, and sits on the UK’s Advisory Committee for Roofsafety

The Astrup Fearnley Museet, Oslo

In this regular feature, we highlight a building which makes outstanding use of daylighting design.

The Astrup Fearnley Museet is a contemporary art museum on the waterfront in Oslo, Norway and part of a larger development: the Tjuvholmen Icon Complex.

The renowned Renzo Piano Building Workshop is responsible for the design of the museum, which consists of three buildings – the museum, office space and a cultural centre.

These are joined together by a large bridge with the design of the project influenced by local ship building with rigging and a sail-inspired roof.

All three buildings are covered by large overhanging roofs with the same radius, which gives the appearance of a single structure.

The roof dips down near the edges, to provide protection from the coastal elements.

Transparent glass floods the interior spaces with brilliant sunlight and reduces the need for artificial lighting.

‘Light Knights’

EXPAND THEIR CRUSADE

Light Knights, the industry group created to promote best practice in the field of Rights to Light and Daylight & Sunlight Amenity, now has over 300 members on their LinkedIn group and is gaining significant interest among a wide range of professionals serving the building and development sectors.

A Light Knights event held in London on 21 June 2023 marked a year since the Group’s launch featured a ‘(Light)Speed Networking’ event, the findings from which will be shared via the Group’s LinkedIn page over the coming weeks.

Light Knights meet three times a year on or around spring equinox, summer solstice and autumn equinox - key dates in the daylight calendar. These have incorporated a Rights to Light case law session, Daylight & Sunlight analysis workshop and a Rights to Light ‘Ambulance Chasers’ debate.

Dan Tapscott, Light Knights founder and Partner at property consultancy Rapleys, said: “The feedback on all these events has been really positive. We set out to gather people from across the industry and build a community to network, knowledge share and raise standards. So far so good! It’s not just practitioners who attend though. We have solicitors, insurers, software developers, 3D modellers, architects and planners besides academics and even the odd representative from the Law Commission who have come along.”

He continued: “Rights to Light and Daylight & Sunlight have been in the shadows for too long. It was time that the industry came together to exchange ideas, agree best practice principles, and help to support and educate each other, and the next generation of practitioners entering the field. In recent years we have seen a number of issues emerge that have radically affected our market, not least the emergence of new service providers who have engineered an increasingly litigious environment between neighbours –residential and commercial. Clearly those who have genuine concerns have the right of complaint and redress, but mass claims which flood insurers can have a detrimental effect.”

Increased claims mean insurance premiums are rising and this can now often threaten the viability of development. Neighbourhoods clearly benefit from sensible, sustainable development in terms of increased value and this is not considered when lodging a claim based on light access.

This is all to say nothing of the effect of stalling development on our critical need for more housing in the UK.

Dan Tapscott summed up: “What this means in practice is that Rights to Light must be considered early in the development process in tandem with considering Daylight & Sunlight Amenity. Risks should be mapped and mitigated so that any claims that do arise further down the line can be managed effectively. Rights to Light practitioners will, by necessity, be more involved in the early stages of development, and in more depth, armed with the latest innovative technology to assess sites and professional expertise to inform dialogue with neighbours.”

Light Knights is sponsored and supported by property consultancy Rapleys.

www.lightknights.co.uk

www.rapleys.com

www.linkedin.com/ groups/9162276/

5 THINGS YOU NEED TO KNOW Evolve® Zero is Here!

1: Evolve® Zero means zero deflection

The blinds industry has always had a problem with tube deflection. In simple terms, tube deflection occurs when the central tube of a roller blind bends or sags under the weight of the blind attached to it. Because of this, the blind fabric sags, which causes visible V-shaped ripples or ‘smiles’.

The patented anti-gravity compensation system at the heart of Evolve® Zero counters deflection with never-before-seen results. We’re able to achieve less than 1mm of deflection on a previously impossible 5 metres width with a 44mm tube.

2: Wider Roller Blinds Than Ever Before

Over the past decade, large glazing areas have become a staple of modern architecture; offering amazing natural light intake and panoramic views. However, shading these large glazed areas has always been a challenge. In the past, you could either:

• Shade the window with multiple separate blind units, leaving a light/privacy gap between each blind.

• Opt for a wide-enough blind, which would need to be mounted on an enormous tube.

Neither of these solutions is ideal: you’re either compromising on privacy and light intrusion or you’re settling for a large, unsightly tube with sagging fabric.

Evolve® Zero solves both of these issues. With its patented Zoomtech® anti-deflection technology, Umbra can deliver blinds capable of spanning wide areas of glazing with zero deflection with a single, gapless blind.

If aesthetics are a top priority, no other product performs across wide spans like Evolve® Zero

3: Smaller tube size = easier concealment

Speaking of modern architectural trends, blind concealment has become another staple of glazing areas in contemporary interiors.

Blind concealment boxes are designed to hide roller blind systems, keeping them out of sight until they’re needed.

However, these concealment spaces are usually too small for the tube size required to span the width of a large window.

Now though, thanks to Evolve® Zero’s ability to perform on smaller tube sizes, the roller blind fits perfectly in most commonly specified concealment spaces.

4: The function of Zero with the style of Evolve®

Since launching in 2022, Umbra’s Evolve® roller blind system has become famous with our clients for its style and simplicity.

With 6 sophisticated hardware colour options, a wide array of fabrics and a minimalistic design, Evolve® Zero excels at both form and function.

5: Optimised for automation

Like our standard Evolve® range, Evolve® Zero is optimised for motorisation and automation.

We recommend hardwiring your blinds to a mains power supply wherever possible. However, hardwiring is unfeasible in many situations and a battery-powered motor is available.

Thanks to its small tube size, Evolve® Zero can be motorised by a quiet battery-powered motor on any size all the way up to 5m wide.

Evolve® Zero is a true innovation in roller blinds.

Umbra is proud to be the only UK manufacturer with the ability to produce roller blinds with Zoomtech® inside.

For more information please visit: www.umbrashading.co.uk

A true revolution in roller blind technology is finally in the UK.

Lans Educational Center

NORTHLIGHTS AND PHOTOVOLTAIC PANELS COMBINE TO OPTIMIZE DAYLIGHT AND LOWER ENERGY USE

A modern and sustainable school full of daylight

Lans Education Centre is a modern school facility located at the foot of mountains in the Austrian town of Lans. The new-build school, designed by Schwärzler Architects, also acts as a community hub for school and public events.

School design receives Europe wide recognition

Schwärzler Architects won a school competition that secured the project and gained Europe wide recognition for design. The modern school includes two and threestorey building structures with an outdoor yard situated between both buildings.

Lans Educational Center is home to a crèche, kindergarten, primary school, music academy, library and event spaces. Hybrid concrete and wooden constructions have been built on sloping land. Each construction was sized so that the school doesn’t dominate the surrounding landscape, and mirrored the cube shape of neighbouring buildings in relation to height and shape.

The VELUX Daylight Visualizer was utilized at the design concept stage.

This digital tool provided 3D simulations to accurately predicate and calculate daylight levels in advance of construction. Digital images enabled architects and building owners make the best daylighting decisions for school operations.

Modular skylights provide daylight in active spaces

On entering the school, large structural openings keep students and staff connected to surrounding nature via window facades and glass entries. In total, 75 skylight modules have been added to two distinct shed roofs, allowing daylight to enter the interior of the school.

Central spaces such as a large reception area also function as meeting places for local events. A fluid design means movement throughout the school is accompanied by daylight and

comfort ventilation. Natural light and fresh air improves the well-being, focus and productivity of young learners and teachers.

Skylights and photovoltaic panels support sustainability

Central to design goals was an ambitious energy concept that included a dual pitched roof that provided ventilation, daylight and solar energy. Each shed roof has three rows of modular skylights that include individual venting modules. Cross-ventilation works to reduce energy consumption within the school with less reliance on air conditioning. North facing skylights allow glare free and soft daylight to enter busy learning environments. Photovoltaic panels absorb sunlight year-round.

https://commercial.velux.co.uk/

Surespan Announces Acquisition of Sunsquare

Surespan, global leaders of innovative access and escape solutions are pleased to announce the successful acquisition of Sunsquare, a prominent player within the Skylight Industry. This strategic move solidifies the business’s commitment to growth and further strengthens its position in the natural daylight industry.

The acquisition of Sunsquare highlights a significant milestone as it expands its product portfolio and enhances its ability to deliver innovative solutions to customers worldwide.

By joining forces, the combined expertise, resources, and talent will pave the way for accelerated innovation and a broader range of offerings to meet customers’ evolving needs within the natural daylight landscape.

Surespan Chairman; Mr Rainer Clover expressed enthusiasm about the acquisition, stating, “it brings a wealth of expertise and a strong track record of success within the industry.

This acquisition aligns perfectly with our growth strategy, enabling us to broaden our customer base, strengthen our market position, and drive value for our stakeholders.”

Sunsquare will continue to operate under its own brand within Surespan’s corporate structure. Both companies will collaborate closely to leverage their strengths and achieve synergies to maximize the value delivered to customers and partners. The acquisition also presents opportunities for technological advancements, and operational efficiencies, ensuring a seamless transition and integration process.

Sunsquare now owned by Surespan share a vision for driving innovation

and transforming the skylight landscape. The acquisition brings together two organisations with complementary strengths and a shared commitment to delivering excellence. This collaboration positions us to be at the forefront of industry advancements.

During this transition, customers of Sunsquare can expect uninterrupted service and continued support throughout the integration phase. The company is committed to delivering exceptional products, services, and support to their respective customers.

For more information, visit www.sunsquare.co.uk or call 01922 714087.

Zenon GRP Rooflights – Calculatable Data

As the construction sector concentrates with ever-more clarity on Zero Carbon by 2050, it has become increasingly important for manufacturers to be able to play their part in enabling the measurement of embodied carbon before any project is specified.

Hambleside Danelaw were the first UK GRP rooflight manufacturer to have systems assessed and independently verified by BRE (Building Research Establishment), leading to three Environmental Product Declarations (EPDs).

BRE’s comprehensive mechanism for calculating the embodied carbon of products comprises a number of separate calculations relating to each component and manufacturing process of the product.

Hambleside Danelaw’s Performance Calculator was based on the data extracted from these EPDs to allow architects, developers, contractors,

building owners and land agents to use this knowledge to play their part in cutting embodied carbon. The Calculator allows for various configurations of components, according to the requirements of the project – meaning that whatever configuration is used, the embodied carbon will be clear and measurable.

To learn more about Zenon GRP rooflights, please get in touch with our team on 01327 701910. Find Zenon GRP rooflights’ performance calculator at:

www.hambleside-danelaw.co.uk/ zenon-rooflights/performancecalculator/

VELUX Modular Rooflights wins “Red Dot” for outstanding product design quality

VELUX Commercial is one of the winners of the world’s most renowned design competition in the category, Product Design, 2023. VELUX Modular Rooflights are flat roof windows with a glasstop construction, providing direct access to daylight.

All entries in the Product Design category were assessed according to their design quality and degree of innovation by the Red Dot Jury, consisting of 50 international experts, who tested, discussed and evaluated every single entry.

VELUX Modular Rooflights are currently offered in nine countries in Europe and are seen as a highend glass-solution for industrial, public and commercial buildings such as offices, schools, shopping centres, libraries, hotels, conference centres, railway stations, airports and healthcare.

All modules are produced at the VELUX factory, and every single component is rigorously tested and designed to comply with existing standards and regulations.

Anna Spring, Senior Vice President, VELUX Commercial, said: “We are very honoured to receive this acknowledgement for our product design.

Our products provide daylight and fresh air to improve peoples’ quality of life, that is at the core of our brand. With the Red Dot Label, we can raise the awareness of our products — in this case the VELUX Modular Rooflights — and associate our brand with great design and quality”.

www.commercial.velux.com

Sun safety Campaign targets skin cancer in construction

Constructionmanagement.co.uk has reported that construction charity We Build the Future has launched a sun safety campaign to help reduce the risk and incidence of skin cancer among people working in the built environment sector.

Construction workers and roof workers in particular, are at a heightened risk of developing skin cancer because of over exposure to UV radiation. Construction workers account for 44% of occupational skin cancer diagnosis and 42% of occupational skin cancer deaths each year – despite making up only 8% of the workforce.

We Build the Future’s preventative campaign aims to help reduce the risk and incidence of skin cancer by promoting sun safety practices on every building site.

The campaign will:

• Promote awareness of UV risk among built environment industry workers and employers;

• Provide access to simple advice on how to reduce UV risk;

• Campaign for sites and offices to adopt safe practices to reduce UV risks;

• Promote access to information and advice for people with concerns about skin cancer.

As part of the campaign, the charity has also teamed up with Melanoma UK and Rainbow Signs to offer sun safety site boards to employers and main contractors.

Using a traffic light system to indicate daily UV risk, the boards should be positioned in a prominent location on site. The risk indicator should be checked and updated by site managers daily, after checking Met office data for the location.

The site boards also provide advice on how to reduce UV risk, and feature QR links to further support through Melanoma UK.

webuildthefuture.org

Team Filon scales the heights

A team from GRP rooflight manufacturer Filon Products has completed a climb to the summit of Yr Wyddfa (Mount Snowdon), to raise a target-breaking £4,724.00 for Alzheimer’s Research UK and Cancer Research UK.

Mental and physical perseverance got the team to the summit in around 4-hours. Unfortunately, the strong wind and rain impaired the visibility, and the team didn’t get a chance to fully appreciate the magnificent views that the Summit offers. Nonetheless, 33,000 steps, 9 miles and just under 7 hours later, the team descended back safely with a real sense of achievement having beaten their target.

Filon MD Mark Wilcox added “Such a tough day but #teamfilon pulled together and got through it! Amazing day, amazing team and amazing support from family, friends, and colleagues to help us raise so much”.

www.filon.co.uk

DAYLIGHTING is published by:

Constructive Media Ltd 50 George Street Pontypool NP4 6BY Tel: +44 (0)1495 239 962

WEBSITE www.daylightingmag.co.uk

EDITOR

Paul Bennett paul@daylightingmag.co.uk

Mobile: 07900 895110

AD SALES AND EDITORIAL: Roger Whittington daylighting@constructivemedia.co.uk

Tel: 01495 239 962

DESIGN/PRODUCTION: daylighting@constructivemedia.co.uk

CIRCULATION

Daylighting is available by email, free of charge to subscribers, by logging on at: www.daylightingmag.co.uk or get in touch to request a print version.

Free access is also available via our website and our social media channels.

Our readership is predominantly UK architects, specifiers, contractors, consultants and roofing professionals.

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.