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Details of Bundewallah

This project was to create a new energy-efficient home that included a stand-alone power supply, rain-fed domestic water supply and onsite waste water management system.

The intended thermal performance of the building is designed to exceed the level certified in the NatHERS protocols and requires additional measures to control for air-tightness, insulation and to limit thermal bridging.
June 2021


We had lots of obstacles to overcome on this job to achieve the energy rating and for it to be self sufficient.

Some of the items we needed to work on were:
  • The wrapping of the house in a thermal blanket which was then pressure tested internally to test for leaks.
  • All windows were double glazed
  • The onsite waste water management system
  • Insulation layers of R6.0 walls, R12 in the ceiling & thermal breaks between construction members
  • Centor flyscreens were incorporated with the external doors and recessed into the burnished concrete slab so they were flush and seamless.
  • The house orientation was set in a certain way on the farm to take advantage of the sun. This aspect allows plentiful amounts of light etc which also helped with thermal properties
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