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AlkorPlan®, the robust single ply waterproofing membrane from manufacturer RENOLIT, has been selected to protect the roof of a landmark new mixed use development dominating the skyline of Leeds city centre. Bridgewater Place, on Neville Street by the River Aire, is a 32-storey office and residential tower standing 110m (361ft) high and comprising 22,000 sq m of offices and 200 luxury apartments with ground floor and atrium level restaurant, shops and bar, above lower level car parking. Costing an estimated £58m to build, construction on the tower commenced in February 2004 and was completed earlier this year, and all of the apartments have already been sold.
Peter Lucey of RENOLIT-approved contractor Kovara Projects Ltd explained: “Around 3500 sq m of adhered, ballasted and mechanically fixed AlkorPlan® was installed by our operatives on the roof over a 12-month period. Working at such a great height, and sometimes in very bad weather conditions, safety was a paramount concern for us. Luckily the Alkorplan system is flexible, lightweight and easy to handle, as well as offering quick and straightforward installation, enabling us to complete the job swiftly and safely.” In addition to this, the durable membrane is extremely resilient and long-lasting, with a life expectancy assessed by the BBA as being in excess of 30 years. This will ensure that the roof of the tower will be protected for decades to come.

Bridgewater Place Leeds

The design for Bridgewater Place includes three buildings brought together by a magnificent eight storey glass atrium to create the region’s largest single structure venue for commercial and leisure use. The upper 22 floors are dedicated to the luxury loft-style residential accommodation, topped by the Alkorplan-protected roof, with the lower floors designed to be used for the offices, shops and restaurants. The building is located on a 1.5 acre site overlooking Granary Wharf. Working with main contractor Bovis Lendlease and architect Aedas, engineering consultant Mott McDonald carried out value engineering of the previous structural scheme, with finite element analysis to optimise the basement car park slab, thin post-tensioned floor plates, rationalisation of the stability system by significant simplification of the core wall layouts, and elimination of the uneconomic sub basement.

Dominic Boyes, Director at Aedas Architects, said: «Our vision was to create a single destination with an atrium to provide a large, open and weatherproof space for all users. Bridgewater Place will provide a proud landmark for Leeds.»

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RENOLIT AG is an international leader in the manufacture of high-quality thermoplastic films and products. This independent family-run business, which has been setting benchmarks for quality and innovation for 60 years, now employs a workforce of approximately 4,200 employees at its 33 production sites and sales companies. The RENOLIT brand enjoys a worldwide reputation for technical expertise, modern product design and customer-orientated service. RENOLIT plastic films can be used to add a finishing touch to furniture surfaces, construction elements and hi-fi products, to seal off structural bodies, landfill sites and roof structures or to line swimming pools. RENOLIT produces films and tubes for medical applications such as blood bags and also manufactures recyclable panels as composite products with natural fibres for the construction and automotive industries. In addition, RENOLIT films are used to produce office organisation products, interior trims for motor vehicles as well as self-adhesive products and technical items. Manufacturing Europe’s most comprehensive range of single ply waterproofing membranes, the RENOLIT product portfolio includes Alkorplan®, Alkorflex®, and Alkorplus® brands of mechanically fastened, bonded, ballasted, green and profiled systems for roofs as well as swimming pool liners and lining membranes for canals, lakes, reservoirs, tanks, tunnels and water features.