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Healing daylight at Benenden

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

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

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

The skylights have a unique ability to bathe interior spaces with diffused and glare-free daylight, which creates a stimulating and healthy environment. In addition, their heavily insulated composition eliminates glare and hotspots, thereby reducing the load on temperature control systems and the need for artificial lighting.

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

Kalwall is a popular choice for projects where performance, long life cycle and low maintenance are required, coupled with an aesthetic finish. The aluminium or thermally-broken grid core with interlocking I-beams gives Kalwall incredible strength. The lightweight system reduces the need for supporting structures while offering the highest protection in terms of wind-borne debris and resistance to impact, abrasion and point loads. The exterior face is colour stable and includes a UV resistant, self-cleaning surface. This means that normal rainfall helps to keep the surface free of dust and dirt while at the same time retaining its original colour during the weathering process. Furthermore, the inclusion of an erosion-prevention barrier protects the interior from weather exposure and the risk of fibre-bloom, cracking and crazing.

Case studies and technical information are available from Structura UK Ltd on tel: 01233 501 504 or by visiting www.structura-uk.com/kalwall
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Flying light

Kalwall® translucent cladding has transformed the newly completed 4,200 square metre extension at Indiana’s South Bend Regional Airport.

Designed by architects Ken Herceg and Associates, the new terminal comprises five gates, restaurants, gift shops and break-out areas all housed under an architecturally exposed, steel-framed barrel vault structure that simulates the structure of an aircraft wing. This is covered with a curved Kalwall Skyroof® 10 metres wide and 180 metres long.

As passengers exit the dark and windowless TSA screening area, they are bathed in welcoming and natural daylight with unimpeded views across the runways. Kalwall eliminates shadows and glare and the stark contrasts of light and shade. The system also enhances simplicity by doing away with the need for blinds, curtains or solar control. Even on cloudy days, the interior is flooded with natural daylight, which means less artificial lighting and, because Kalwall is highly insulating, energy costs are reduced. The standard Kalwall 70mm thick panel offers insulation up to 0.28W/m2K – equivalent to a cavity filled brick wall, whilst still allowing for up to 15% visible light transmittance.

The architects made good use of Kalwall’s free daylight modelling service on this project. Daylight Modelling is the way to calculate the most effective daylighting for any type of building. It is calculated using five years’ worth of real world weather files at the exact location of the building together with information on day, time, position and weather patterns. This generates an in-depth report on interior lux levels, a glare pattern analysis and radiance Illuminance – a snapshot of the ambient lux level (light) at any given time on daylight penetration at any time of the day or on any day in the year.

Kalwall is frequently specified for this type of prestige project where high-end performance and quality need to be coupled with aesthetics, practicality and a long life cycle. Not only does Kalwall provide a neat and cost-effective solution but it also offers complete line-of-sight protection and is highly vandal and impact resistant. It is also ideal for areas considered as a high value target not only because is it FM (Factory Mutual) approved but also because its unique fabrication means that any blast is mitigated. Unlike glass, splintering and serious injury are greatly reduced in the event of an explosion as Kalwall is shatterproof.

Case studies and technical information are available from Structura UK Ltd on tel: 01233 501 504 or by visiting www.structura-uk.com/kalwall.
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Kalwall® brings light and security to Gatwick Airport

Good lighting is always essential but sometimes a well-lit interior also needs to be discreet when viewed from outside. This is the case with the very long Pier 1 which runs alongside the baggage system and gates at Gatwick Airport’s South Terminal Building. The two stringent requirements of privacy and security have been neatly solved using Kalwall®, with the added benefit of enhancing the long walkway by creating a pleasant interior ambience.

Kalwall offers complete line-of-sight protection, maintaining privacy for building occupants while bathing the interior with diffused daylighting regardless of the weather. It can also be manufactured for blast resistant applications such as in airports and other sensitive public environments, or to protect workers in areas at risk from explosions, such as in refineries or industrial complexes. Kalwall is also key to overcoming security concerns. Apart from providing visual protection, its inherent strength makes it ideal for secure locations. With heavy duty impact resistance properties, access through wall or rooflights can be denied while fire and most chemicals will not affect its surface.

Aesthetically, Kalwall will eliminate shadows and glare and the stark contrasts of light and shade. The system also enhances simplicity by doing away with the need for blinds, curtains or solar control. Even on cloudy days, the interior is flooded with natural daylight, which means less artificial lighting and, because Kalwall is highly insulating, energy costs are reduced. The standard Kalwall 70mm thick panel offers insulation up to 0.28W/m2K – equivalent to a cavity filled solid wall.

Apart from being specified for all types of new build project, Kalwall is increasingly used for the refurbishment of cladding or rooflights on aged buildings.

Case studies and technical information are available from Structura UK Ltd, Tel: 01233 501 504 or visit www.structura-uk.com/kalwall.
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Kalwall creates healthy shelter

Around 8 million people a year are expected to be sheltering under Kalwall at the beautifully-designed new bus station at West Croydon. Designed by Transport for London Architects, this is an unusual example of how translucent Kalwall can offer many different advantages above its normal use for translucent traditional building cladding and rooflighting.

The brief for this project was to create a user-friendly waiting and assembly shelter to service the thousands of passengers using this important and busy transport hub linking the 150 buses an hour with the adjacent tram stop and West Croydon railway station providing routes to Canada Water and east London, and via the tram network to Beckenham and Wimbledon.

The normal choice of construction for a translucent and weatherproof canopy would be to glaze the roof with glass, However in-house architect Martin Eriksson and the project team at TfL realised that Kalwall offered a better solution in this location which would not only solve the brief and contribute to a better design but would offer many other benefits over traditional glazing.

For example, since Kalwall is much lighter than glass it meant that the supporting structure needed to be less strong and far less chunky. In additional, not only would the shelter be less high but the vertical supports would be less obstructive and open up a better view of the environment including the very attractive church nearby which had previously been blocked from the view of waiting passengers.

Unlike conventional glazing, highly insulating Kalwall is far more attractive than glass while eliminating shadows and glare and the stark contrasts of light and shade; improving the experience for passengers below.

Also, due to the way it diffuses natural daylight downwards and at night reduces vertical illumination and reflection upwards, it controls light pollution on the surrounding high rise buildings. Soil and detritus are less obvious on Kalwall than on glass and maintenance and cleaning is much simpler because access scaffolding is not required and maintenance staff can safely walk across its surface.

One of the main attractions of specifying high performance Kalwall for conventional buildings is its unique effect on both the interior and exterior. Internally, rooms are flooded with diffused natural daylight which creates a stimulating and very attractive environment. Although translucent, it also offers the big advantage of privacy while the elevations appear crisp, simple and inviting. When illuminated at night they emit a very attractive ethereal glow.

Apart from being specified for all types of new build, Kalwall is increasingly used for the refurbishment of cladding or rooflights on aged buildings. Case studies and technical information are available from Structura UK Ltd, Tel: 01233 501 504 or visit www.structura-uk.com/kalwall.
Structura UK is the exclusive distributor of the Kalwall translucent daylight building system for England, Wales and Northern Ireland and a leading supplier, fabricator and installer of glass curtain walling, rainscreens, glass atria, windows and other architectural glass building products.
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Getting a kick out of Kalwall®

Kalwall translucent cladding is a key feature in the recently renovated British National Taekwondo Centre in Manchester. The new facility was opened in time to service the needs of British athletes training for the 2016 Olympic Games in Rio. Now for the first time, the entire national taekwondo programme, including 130 athletes, coaches and administrators, can be carried out under the same roof. This state of the art facility was designed by AEW Architects, with Balfour Beatty as the main contractor.

One of the main attractions of specifying high performance Kalwall is its unique influence on both the interior and its external appearance, particularly at night. Internally, rooms are flooded with diffused natural daylight which creates a stimulating and healthy exercising environment which, although translucent, also offers privacy. Unlike conventional glazing, highly insulating Kalwall eliminates shadows and glare and the stark contrasts of light and shade. The system also enhances simplicity by eliminating the need for blinds, curtains or solar control. In addition, the even distribution and deep penetration of light through Kalwall means less artificial lighting is needed thereby reducing energy costs.

Kalwall is a popular choice for sports and leisure environments and is commonly installed around swimming pools and sports halls. It is an ideal solution where an even distribution of light is important so that players can distinguish markings on the floor as well as not being distracted by glare and other interference.

Kalwall is distributed in England, Wales and Northern Ireland by Structura UK, a leading supplier, fabricator and installer of glass curtain walling, rainscreens, glass atria, windows and other architectural glass building products.

The company has had all three of its ISO certifications successfully renewed for three years: OHSAS 18001 Health and Safety Management, ISO 14001 Environmental Management certification and ISO 9001 Quality Management certification.

Case studies and technical information are available from Structura UK Ltd, Tel: 01233 501 504 or visit www.structura-uk.com/kalwall.
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