Otago – St Clair Dunedin
Certified PassivHaus Classic
This amazing home sits south west over the coastal view. The architects had to solve the issue of being able to enjoy the vista while enabling some shelter from the prevailing winds.
Super insulation was used along with Triple argon filled low-E coated glazing necessary for the climate this far south. European windows by ecoWindows in wood and aluminium also feature.
This grid tied photo-voltiaic home is perfect for this progressive family, often generating more energy than it uses.
Floor – EPS raft slab 200mm U-value = 0.131 W/(m2K)
Wall – 140mm timber frame with service cavity U-value = 0.212 W/(m2K)
Roof – Double layer of fibreglass insulation U-value = 0.119 W/(m2K)
Window Joinery Frame – EcoWindows – Wood Alu HA 78 Premium U f-value = 1.30 W/(m2K)
Glazing – Triple glazing Argon U g-value = 0.60 W/(m2K) g -value = 54 %
Ventilation – Zehnder Comfo Air R 350 MHRV
Hot Water – 250L Hot water cylinder
Heating/Cooling – Under tile heating mat on ensuite and bath
Heating Demand: 12.04 kWh/m2/yr
Heating load: 13.7 W/m2
Frequency of overheating: 0 % year over 25C
TFA: 181.9 m2
Form Factor: 3.04
Air Leakage@50Pa: 0.50 ACH
PE demand: 95 kWh/m2/yr