The Canaletto residential tower at 257 City Road in London is located halfway between Old Street and Angel Stations in Islington, alongside the regenerated City Road Basin. It comprises a 31-storey tower with 190 luxury one, two and three bedroom apartments built to the standards of Code 4 Sustainable Homes Level 4.
The tower is concrete frame and has a curving facade of metal and glass that breaks the volume into a series of three-to-four storey clusters. In turn, each cluster contains grouped balcony terraces, which are a striking feature of the building. The balconies are of steel construction connected to the concrete frame and as always with cantilever construction elements of this nature, one of the early design considerations had to be the prevention of thermal bridging.
For the high specification Canaletto project the Schöck Isokorb® T type SK offers the ideal solution. It is a concrete-to-steel connectivity module that sits between the outer and inner structural connection points and blocks the outflow of heat through the use of high quality polystyrene insulation foam. The Isokorb® T type SK provides a clean and unobtrusive connection detail, minimises on-site assembly time and enables a high level of prefabrication.