The way in which slices of natural light change in space during the course of a day, as well as during a year, is the focus of Sun Slice House by Steven Holl Architects. Located on Lake Garda in Italy, the weekend home was designed using simple cubic volumes loosely joined by sheets with a rubber-like geometry. The curves create courtyards on both sides of the home which are sheltered from the wind. The north façade is made primarily of glass, while natural ventilation and geothermal heating and cooling were included in the design. The steel and concrete structure is covered with a warm red alloy of copper, steel, chromium, and nickel. The interior walls are white plaster, with terrazzo floors on the ground level and bamboo floors on the second.