With its elegant 90-meter (300-foot) four-storey glass atrium overlooking the Rideau Canal, the Ottawa School of Information Technology and Engineering (SITE) is one of the most striking building in the national capital. The 16,900-square-meter (182,000-square-foot) concrete structure uses a prefabricated system of Thermobuild hollow core slabs. With a rotunda on its North side, the school consists of seven multimedia classrooms, four teaching laboratories and 20 research labs.
The atrium is the heart of an energy-efficient radiant heating system that uses the thermal mass of concrete through the hollowed-out slabs of the atrium floor as well as the wall panels. This energy accumulated in the concrete acting as reservoir is transferred to the rest of the building by a heat pump and a radiation cooling system.