Orr’s Residence Richmond
Project Team
Architecture Continuum Architects
Passive House Design Oculus Architectural Engineering Ltd - oculusltd.co.nz
Builder Tasman Homes Nelson Ltd - tasmanhomes.nz
Certifier Sustainable Engineering Ltd - sustainableengineering.co.nz
This successfully certified Passive House project in the top of the South is a SIP construction on an insulated concrete slab with locally manufactured high-performance windows. Informed clients led the push for energy efficiency, in part thanks to encouragement from a son in the construction trade. It was the architect’s first Passive House project, with Passive House design delivered by a third party. The owners are delighted with the result and have generously welcomed visitors through the home on official and unofficial Passive House open days
Passive House Metrics
- Heating Demand14.2 kWh/m2/year
- Heating Load9.1W/m2
- Frequency of Overheating1.7%
- TFA201.74m2
- Form Factor3.7
- Air leakage @ 50Pa0.3 ACH/hour
- PER demand39.2kWh/m2/year
Passive House Database - 6835
Construction Details Average Values
- U-value External Walls 0.22 W/(m2K)(R4.5)
- Formance 165mm SIP with 45mm service cavity
- U-value Floor0.25 W/(m2K)(R4.0)
- Concrete Slab with 150mm continuous insulation underneath
- U-value Roof 0.12 W/(m2K)(R8.6)
- Formance 265mm SIP
- U-value Glass0.55 W/(m2K)(R1.8)
- Thermadura - Silverstar EN2plus
- U-Windows1.0 W/(m2K)(R1.0)
- Thermadura Designline90
- Ventilation Efficiency 82%
- Zehnder - ComfoAir350
