building fabric
The lightweight panels were installed in long horizontal and vertical bands
Eliminating the stark contrasts of glare and shadow
ambience for study, learning and leisure in colleges and schools. As part of its work at INTO University of East Anglia, LSI Architects used Kalwall to deliver the desired effect.
U Even on cloudy days, the calm and
attractive interior is flooded with what is described as Museum-Quality Daylighting, eliminating the stark contrasts of glare and shadow and without the need for blinds. This also means that the consumption of artificial lighting is reduced and, because the system is highly insulating, energy costs are reduced. U values as low as 0.28W/m2K, equivalent to a solid wall or roof, can be achieved by including translucent aerogel insulation within the panels, according to Kalwall’s distributor Structura UK.
Including colour variations in rainscreen cladding
T
HE REDEVELOPMENT of City School in Sheffield involved a £22m BSF project carried out by Vinci
Construction over two phases. Phase 1, the new build element,
incorporates a new dining hall, main hall, learning resource centre and visitors’ reception as well as maths, science, ICT and humanities classrooms. Phase 2 comprised part refurbishment of the existing buildings, which involved stripping them back to their original steel structures and high-level stone cladding and installing new envelopes. The new look school was designed by
architects HLM to be inspiring to all, including the community which has access to its facilities after hours. The rainscreen cladding was particularly challenging due to the numerous differing colours and especially the sizes of the panels required for the architect’s scheme.
Some 3,000 sqm of Steni’s fibreglass
reinforced polymer composite 7mm Colour panels, in a total of eight shades, was used on the façade and main entrance soffit of Phases 1 and 2. The lightweight panels, which feature a smooth surface of 100% acrylic, were installed in long horizontal and vertical bands and in colours ranging from light yellow to dark grey. The rainscreen element used structural adhesive onto an aluminium sub-structure and the remainder was made up into Steni-faced composite panels and glazed into a low- rise aluminium glazing system.
www.hlmarchitects.com www.vinciconstruction.co.uk www.steni.co.uk
educationdab.co.uk 47
Self-supporting Kalwall comprises a translucent structural composite sandwich panel permanently bonded to a grid core constructed of interlocked thermally- broken aluminium I-beams. The roof systems can be bespoke or are available in self-supporting barrel and low profile vaults and self-supporting ridge roofs. The lightness of the panels means installation is less cumbersome than glass. The panels have inherent rigidity and impact resistance and are largely self-cleaning.
www.lsiarchitects.co.uk www.structura-uk.com/kalwall
Reduced need for artificial lighting
SING a translucent system to diffuse daylight through walls or roofs can create the ideal
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