Champion Passive House - Williamstown

“Our vision has been to build the best family house we can. That dream lead us to a Passive House design and the incredible team at Altereco Design. They showed us that not only can we afford a Passive House, but that we can have all the special touches we wanted.

We feel so lucky to have found a building designer, interior designer and builder that we connect with. And they will help us achieve a Passive House Plus certification to boot”

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Sustainability & Performance Specs

Project type: New Build - AlterecO2 pre-designed Possum House

Performance: Certified Passive House Classic

Heating demand: 14kWh

Cooling demand: 13kWh

Airtightness: 0.41 ACH

Ceiling/roof R values: Truss roof, R2.5 + R7.0 = R9.5

Floor: Timber subfloor, 190mm joists with Glasswool Batts. R5.0 (2x R2.5mm 90mm)

Wall assembly: 140mm stud framing with R4.0 Glasswool Batts

Internal airtight vapour permeable membrane: ProClima vapour membrane

Windows & doors: Logikhaus Aliclad, Timber windows

MHRV: MHRV: Zehnder Comfoair CA350, via FANTECH

NatHERS: 7.7 Stars

Orientation/shading/eaves: North-west: External retractable shade screens. South-east: nil. South-east: nil. North-east: External retractable shade screens

Heat pump hot water: Reclaim - Hot Water Heat Pump System

Solar PV: 8.75kW solar

Water: 2500L rainwater tank

Size: 180m2 + garage

Builder: Carland Constructions

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