WISTERIA -CERTIFIED PASSIVE HOUSE PLUS
ID: 6441
General Information
Passive House Plus new build
Building type: detached single family house
Location: AU - 3134 Melbourne (Victoria)
Videos: https://www.youtube.com/watch?v=d1d3yNu5b1s&featur...
Description:
Wisteria: A multi-level house on a very difficult site falling steeply from the road and subject to high bushfire risk. An example of how Passivhaus can be achieved while also reducing construction costs. Due to the expensive substructure required to deal with the slope, the design the owners had previously obtained was above their budget. By creating a design that works with the contours, the same accommodation has been provided at a lower cost but also enhanced to Passivhaus Plus standard.
The house is on three levels with the entrance at the intermediate level to make access from the street easier and minimise retaining walls. Construction is standard timber frame walls, roof and suspended timber floors. The exterior including roofing, rendered insulation cladding and Upvc windows comply with “BAL40” (very high bushfire resistance) requirements. Minimising the footprint and aligning with contours provided a more cost-effective and thermally efficient envelope.
Number of apartments / units: 1
Treated Floor Area according to PHPP: 207 m2
Construction type: timber construction
Year of construction: 2020
Other parties involved
Architecture: David Halford 5c Sustainable Building Design
Building services: David Halford 5c Sustainable Building Design
Building physics: David Halford 5c Sustainable Building Design
Certifier: Luc Plowman Detail Green
Statics: Shackleford Structural
Craftsperson / parties involved: GLux Builders
Thermal envelope
Exterior wall: Standard 90mm prefabricated timber frame with bushfire rated rendered insulation cladding U-value = 0.183 W/(m2K)
Basement floor / floor slab: Suspended timber with PIR insulation and particleboard deck
U-value = 0.35 W/(m2K)
Roof: Standard timber trusses with glasswool insulation U-value = 0.085 W/(m2K)
Window Frames: Kommerling Upvc frames, Kommerling bushfire rated Upvc U w-value = 1.1 W/(m2K)
Glazing Triple glazing U g-value = 0.7 W/(m2K) g -value = 5 % and BAL40 double glazing U g-value = 1.36 W/(m2K) g -value = 5.4% U g-value = 1.36 W/(m2K)
g -value = 54 %
Entrance door Kommerling Upvc door U d-value = 1.16 W/(m2K)
Mechanical systems
Ventilation Zhender, ComfoAir 550
Heating installation No dedicated heating system other than revere cycle air conditioning Domestic hot water Sanden Eco Heat Pump split system
Additional information
Ecological aspects Rainwater harvesting. Solar electricity (PHPlus). Minimised footprint.
PHPP values
Air tightness n50 = 0.38/h
Annual heating demand 10 kWh /(m2a ) calculated according to PHPP
Heating load 11 W/m2
PE demand (non-renewable Primary Energy) 75 kWh /(m2a ) on heating installation, domestic hot water, household electricity and auxiliary electricity calculated according to PHPP
PER demand (renewable Primary Energy) 34 kWh /(m2a ) on heating installation, domestic hot water, household electricity and auxiliary electricity calculated according to PHPP Generation of renewable energy 165 kWh /(m2a ) based on the projected area
