For the 2011 London Design Festival, David Chipperfield Architects and Arup worked closely together to realise Two Lines, a free standing glass pavilion that showcases Sefar Architecture Vision, a metal coated fabric laminated between two glass panels. David Chipperfield Architects wanted the pavilion not only to be a landmark on London's South Bank next to the Royal Festival Hall, but also to invite the public to walk into it, interact and experience the unique appearance of the glass with the shimmering translucent mesh that constantly changes with orientation, view angle and light conditions. The design features two interlocking forms (“Lines”) that are similar in shape but with opposite orientation. One Line features copper and one aluminium coated mesh, each Line consists of fourteen free standing glass wall panels, orientated on a rectangular grid and supporting five glass roof panels. The different orientation of the glass walls not only creates an interesting space that guides the view of the visitor, the arrangement also stabilises the 3.6m tall structure. The glass panels are laminated with DuPont Sentry Glass that encloses a 50% open mesh that has a copper or aluminium coating on one side and is black from the other. The design of the connectors supports the Architectural concept: reduced linear stainless steel connectors where electrochemically coloured to match the colour of the mesh. The bonded connectors were factory bonded to the glass, this reduced the onsite installation time. The project was designed and realised within less than five months with the combined effort of the Architect, Engineer, the Material Suppliers and specialist contractor Bellapart.