Ethos Abode Christchurch

House Profile

Project Team

Architecture & Passive House Design Meta Architects - metaarchitects.co.nz
Builder Ethos Homes - ethoshomes.co.nz

Structural Engineer PTL - ptlnz.com
Certifier Sustainable Engineering Ltd – sustainableengineering.co.nz

Passive House Metrics

  • Heating Demand16.6 kWh/m2/year
  • Heating Load9.9 W/m2 
  • TFA177.6m2
  • Form Factor2.7
  • Air leakage @ 50Pa0.2 ACH/hour
  • PER demand34.4kWh/m2/year

Passive House Database - TBA

Construction Details Average Values

  • U-value External Walls 0.22 W/(m2K)(R4.52)
  • 140mm timber framed wall with R3.6 TerraLana wall batts, Intello air control layer, 45mm service cavity with R1.2 TerraLana batts.
  • U-value Floor0.23W/(m2K)(R4.42)
  • Concrete slab on grade with hollow pocket waffle pod system and 100mm XPS insulation.
  • U-value Roof 0.13W/(m2K)(R7.80)
  • Timber skillion roof with TerraLana R6.2 insulation, Intello air control layer and service cavity insulated with PIR insulation.
  • U-value Glass0.65 W/(m2K)(R1.54)
  • Metro Xcel triple glazing
  • U-Windows1.1 W/(m2K)(R0.9)
  • Weathershield Warmcore
  • Ventilation Efficiency 87%
  • Zehnder ComfoAir Q450 HRV