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Top ideas

Project 109

Key innovation: a light flooring system

The scheme developed the exceptionally light flooring system for an extension on a shallow raft foundation over arch- aeological remains. Although the traditional response might have been timber, a dry steel deck flooring build up was chosen because it was lighter and stiffer, as well as being resistant to insect and fungal attack. The decking was constructed without concrete, which had never been tried before. The design, developed with the Steel Construction Institute, significantly reduced construction time while cutting costs and weight, and made deconstruction, recycling and reuse of materials easier.

The team

Dr Amato, Hyder, Richard Keat Associates, Hinkins and Frewin, County Roofing, Precision Metal Forming and Corus (formerly British Steel Strip)

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