The new work is designed to minimise the impact on the Grade II-listed interior of the barn. It comprises a number of freestanding elements: a ramp leading to a raised deck, an illuminated display wall alongside the deck, and a glazed kiosk at the end of the deck.
To accommodate uneven floor conditions the deck, kiosk and display wall are mounted on adjustable threaded stainless steel legs adapted from raised access floor pedestals. They support a series of 150 x 45mm timber joists on steel shoes and 150 x 45mm timber cross members; these in turn support a deck of 150 x 21mm cumaro planks with 3m gaps between them.A Cor-Ten strip lines the edge of the deck.
The display wall is formed of Cor-Ten sheets secured with gravity clips to a timber frame. Openings in the wall are lined with translucent white glass illuminated display panels or transparent glazed panels.The wall also acts as a backrest (with concealed heating panel) to an oak bench.
The rear wall of the kiosk curves over to form its roof.
Side and front walls are of frameless glazing slotted into Cor-Ten channels in deck and roof.
The curved rear wall/roof consists of four Cor-Ten 'trays' of 5mm panels with raised edges of 10mm plates, which were laser-cut to the curved shape.The trays are lined with 16mm birch-faced ply and bolted together at the edges to act as a cantilevered plate.
The large opening in the west wall is protected with a pane of 19mm toughened glass set 50mm outside the plane of the wall on projecting stainless steel brackets which are fixed in turn to resin anchors in wall and lintel.