Butterfly Effect Passive House

BRIEF

- net zero carbon

- small retirement home

- rural setting in Northern Tasmania

- two bedrooms,91m²

- constrained site, Eastern slope

- bushfire resistant - BAL 12.5

- rainwater collection

- net zero carbon

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ENERGY

- PHPP: heating demand 14 kWh/m²a

- heat recovery ventilation

- 11kW PV:covers total energy use & exports more to grid than is used in the home

- EV car charging in garage

- hot water: Sanden heat pump

- reduced footprint to minimise embodied energy

MATERIALS

- brick cladding for longevity/low maintenance

- thermal mass: trombe walls & slab

- triple glazed timber-aluminium composite tilt/turn windows

- joinery: FSC certified ply, recycled timber

- permeable and airtight, highly insulated envelope

FUTURE PROOFING

- Accessible throughout

- Oversized gutters for expected stronger rainfall

- Bushfire proofing to higher BAL than required

- Low maintenance and recyclable materials