House Profile

Project Team

Architecture & Passive House Design Architype Ltd. –  architype.co.nz
Builder Carruthers Builders Ltd. – carruthersbuilds.com

Certifier Sustainable Engineering Ltd – sustainableengineering.co.nz

Passive House Metrics

  • Heating Demand15.35kWh/m2/year
  • Heating Load10.86 W/m2 
  • TFA139m2
  • Form Factor3.0
  • Air leakage @ 50Pa0.4 ACH/hour
  • PER demand37kWh/m2/year

Passive House Database – TBA

Construction Details Average Values

  • U-value External Walls0.19 W/(m2K)(R5.31)
  • Kingspan Kooltherm K7 insulation board, 90mm timber stud wall with R2.8 Pink Batts, 45mm service cavity with R1.3 Earthwool batts.
  • U-value Floor0.10W/(m2K)(R10.34)
  • Concrete slab on grade with 300mm EPS and 50mm XPS.
  • U-value Roof 0.14W/(m2K)(R7.3)
  • Timber skillion roof with two layers of R4.3 Pink Batts
  • U-value Glass0.52 W/(m2K)(R1.93)
  • High performance triple glazing
  • U-Windows0.9 W/(m2K)(R1.1)
  • ThermaDura DesignLine windows and NatureLine doors
  • Ventilation Efficiency 91%
  • Zehnder ComfoAir200