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Knock-down-rebuild house for a family of 5, designed by leading Australian sustainable architects Envirotecture, and built by a Sydney builder Superior Constructions to meet the world’s best practice German PassivHaus standard for energy efficiency, thermal comfort and indoor air quality.
It is a two storey timber frame building, built using an innovative modular prefabricated panel system, designed and manufactured in Victoria by CarbonLite, at the time of construction, the only supplier in Australia certified to produce a prefabricated PassivHaus Certified wall and roof assembly system. This ensured a high level of quality and precision, and also meant the entire project took approximately 8 months from demolition to completion, much faster than a conventional building process. The frame was erected in just 3 days.
The house features solar shading, advanced double glazed windows, improved insulation, and a filtered fresh air ventilation system. It will also incorporate a large photovoltaic array, a green roof over the garage, grey water and rainwater reuse for landscape irrigation, and extensive gardens for food growing and native plants.
The cladding is a zero carbon wood fibre composite panel product made from native Australian timber offcuts by a family owned company based in the Hunter Valley, Weathertex. It will have a sprinkler system on the façade to protect the house from ember attack, making it more resilient to bushfires.
The finance (mortgage & construction loan) has been provided through the CEFC-backed Bank Australia Clean Energy Home Loan, and this house is the first to secure this funding using the Passive House Certification pathway. It is also one of a select group of the first homes to pilot the Green Building Council of Australia’s Green Star Homes standard.
I believe it is a model for a healthy, comfortable and efficient modern Australian homes.