cladding
Pre-fab cladding brings buildability benefits to Glasgow scheme
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ONSTRUCTED by Watkin Jones, a contractor that has built more than 28,000 student living units over the past 20 years, the St Mungo’s student accommodation development has been built in an ideal location directly opposite the City of Glasgow College’s City Campus on a site acquired after planning permission had already been secured. “Acquiring the site with planning permission already in place meant we could fast track the project,” said Watkin Jones. “However, we needed to refine the design from a buildability perspective without changing the external aesthetic. “We were also keen to ensure that the cladding system specified for the project offered proven fire resistance to support high safety standards.” Shackerley’s SureClad® Engineered Stone system in lightly speckled cream colourway matched the aesthetic of the original façade spec that had been passed through the planning department. Importantly, Shackerley’s Engineered Stone system is Class A2/S1 rated fire resistance in accordance with BS-EN 13501-1, which means that it’s ideal for all high-rise buildings, including residential projects over 18 metres high. The original design featured a pre-cast
concrete cladding but the weight of using large format concrete panels presented health and safety and buildability challenges so the Watkin Jones team worked with the project’s cladding
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subcontractor to consider alternatives. “Alongside the risks associated with installing the heavy concrete panels at height, the prospect of installing rivets that would be visible on the exterior of the façade raised aesthetic questions too,” said the company. “We needed an alternative that would provide the right aesthetic for architectural context, while offering the right practical qualities and the Shackerley SureClad® Engineered Stone system ticked the boxes on all counts.” Watkin Jones elected to use the Shackerley SureClad® Engineered Stone system in two cream-coloured finishes; a honed natural finish and a textured ‘gritblasted’ finish. The panels were supplied in various sizes, with most ranging from 2692mm x 77mm up to 2962 x 1138mm, with an additional two exceptionally large 3000 x 1240mm panels. Brian G Newell, chief executive of Shackerley, commented: “One of the many advantages of our pre-fabricated SureClad® Engineered Stone range is that the material is relatively lightweight yet very robust. We can currently produce panels of virtually any size, including supersized panels of up to 3050mm x 1240mm x 20mm. The St Mungo’s project demonstrates the advantages of that design flexibility.”
Despite the change of specification and short lead times, Shackerley was able to meet the demands of the project and the tight programme, pre-fabricating all
panels and special details at the company’s dedicated ISO 9001 accredited production plant in Lancashire. The building’s complex shape and fenestration design meant that there were more than 100 different panel types, with each panel required to meet the needs of the detailed installation plan and sequence. Shackerley also prefabricated a number of panels with mounted reveals. The SureClad® Engineered Stone cladding system was installed using Shackerley’s SureClad® Hang On installation system, which allows the panels to be fitted into position on horizontal rails and provides full support while they are being levelled. This ensured a much safer installation and meant all fixings were hidden from view to create a seamless external façade with no visible fixings Many of the SureClad® panels were fabricated by Shackerley in just a few days. Use of the Shackerley SureClad® Engineered Stone ventilated façade system means that the new building used less concrete and was finished on time, while offering the benefits of a robust façade system with proven fire resistance to a recognised European standard now enshrined in law.
www.shackerley.com
www.watkinjones.com
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