House Profile

Project Team

Architecture Claire Tod
Passive House Design – Energy Architecture NZ Ltd – energyarchitecture.nz
Structural Engineer – Synge Consulting (Tony Synge)
Builder iConstruct
Certifier Sustainable Engineering Ltd– sustainableengineering.co.nz

Passive House Metrics

  • Heating Demand14.1 kWh/m2/year
  • Heating Load12.6 W/m2 
  • TFA100 m2
  • Form Factor3.5
  • Air leakage @ 50Pa0.24 ACH/hour
  • PER demand56 kWh/m2/year

Passive House Database – TBA

Construction Details Average Values

  • U-value External Walls0.21 W/(m2K)(R4.7)
  •  Ply rigid air barrier, 140mm timber framing with R3 TerraLana batts, Intello air control layer, 70mm service cavity with R1.8 TerraLana batts, OSB wall lining.
  • U-value Floor0.16W/(m2K)(R6.2)
  • Suspended timber floor with OSB air control layer, I-joist flooring with R6.2 TerraLana batts and ply wind protection layer.
  • U-value Roof 0.15W/(m2K)(R6.7)
  •  240mm I-joists with R6.2 TerraLana batts, Intello air control layer, 45mm service cavity with R1.2 TerraLana batts, OSB lining.
  • U-value Glass0.53 W/(m2K)(R1.9)
  • Saint-Gobian 4XN-18 ar-4-18ar-4XN
  • U-Windows1.0 W/(m2K)(R1.0)
  •  EcoWindows WoodALU
  • Ventilation Efficiency83%
  • Systemair – SAVE VTC 200