Two agricultural sheds, one new and one reworked as a house, were among this year’s winners

Buildings.

The Galvanizing in Architecture Award was won by Tonkin Liu’s Old Shed New House, in Great Ouseburn, where galvanised steel is used for an exposed exoskeleton and also forms a slender-profiled mezzanine in the library.

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Shand Building Design took home one of the prized watering cans – the Galvanizing in Engineering Award – for the Middleton of Rora dairy shed, near Aberdeen. The shed has been designed to the highest welfare standards, including a stepped 15 degree pitch to the roof for increased airflow and natural light, resulting in much healthier livestock and an increased milk yield.

Best use of Detail went to The New Portland Arms by Michael Trentham Architects which used galvanised steel to anchor untreated larch and Normandy Grey brickwork. A coping detail was provided by a galvanised mitred and welded flat section.

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Newground Architects won best use of Duplex for The Rehearsal Rooms in North Acton, a new model for community living. Longevity of metalwork, which plays a leading role in the elevations, was achieved by galvanising and then powder coating.

Dursley Treehouse by Millar and Howard Workshop in Gloucester, reimagined treetop living on an environmentally sensitive site by allowing for the projected growth of twenty-seven mature trees. As winner in the Sustainability category it used galvanised steel piles instead of concrete foundations to avoid damaging tree roots. It also repurposed galvanised grilles from a disused factory for walkways.

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The high standard of entries in the architecture category meant that judges also considered a number of entries as highly commended. One of these was Blue Mountain School by 6a Architects, who oversaw the hot dipping process to wall panels, mobile units, displays and complex curving handrails. Galvanised windows and screens were clear lacquered to expose the marks of manufacturing.

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Hardelot Theatre by Studio Andrew Todd gained a special mention as France’s first permanent neo-Shakespearean theatre and the first naturally-ventilated complex arts building in the world. Galvanised steel is a principal structural material throughout the building.

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Artist Emma Stothard’s sculpture Boiled Lobster also received a special mention, for its use of a duplex coating. Alongside durability, the coating gave the artist the option of using colour to highlight ethical concerns around food production. A welded steel armature forms the central support for various gauges of mild steel wire which have been meticulously hand woven.