WINNER: SHOSPEC PTY LTD, HOUSE KÄHLER
House Kahler was put together using preformed 0.8mm rolled steel lip section panels and trusses. Walls are cladded with fibercement and osb boards externally, with a 102mm insulation in the cavity and 15mm gypsum board internally. From beginning to end, the +- 500sqm home with high quality finishes, took just 5 months to complete. Furthermore the system is SABS approved and the structure has met with NHBRC standards.
The structure is 30% more energy efficient than it would have been, had it been built using brick. Materials used retain significantly less heat than brick and concrete, considerably reducing the need for air conditioning.
During the construction phase there was minimal site waste and transport requirements are considerably less. In addition, a number of green building innovations were adapted, including a grey water system, thermal insulation, 10 skylights, glass frontage to maximize natural light and airflow, a solar geyser, as well as a rain harvesting system.
