Winnall, Winchester City Council

Technical innovation

For the Winnall development, we used light and durable steel frames in the construction of our sustainable homes.

The choice of the METEK Frame for construction contributed to the sustainable performance, providing a warm frame construction, which will last 1000 years with zero degradation, resulting in lighter, cheaper foundations as it weighs less than traditional construction, and results in minimal waste, as the frame material is recyclable.

The finished building is thermally efficient, dimensionally stable – no shrink, swell, warp or settlement, which reduces future defects. It is quick to build and quick to offer early weather tightness, so other trades can commence work early, and it provides excellent U-value performance. After fixing the brick tie channels through our external airtight layer with 5000+ Tek screws, the site team achieved an incredible airtightness rating during an air test in March, of 0.27p/h @50 pascals which is 4 times more airtight than our requirements and a drop of only 0.07. This has been achieved through meticulous attention to detail and constant checking.