House Profile

Project Team

Architecture & Passive House Design Architype Ltd. –  architype.co.nz
Builder John Creighton Builders – johncreightonbuilders.co.nz

Certifier Sustainable Engineering Ltd – sustainableengineering.co.nz

Passive House Metrics

  • Heating Demand19.3 kWh/m2/year
  • Heating Load10.3 W/m2 
  • TFA308 m2
  • Form Factor2.9
  • Air leakage @ 50Pa0.31 ACH/hour
  • PER demand42 kWh/m2/year

Passive House Database – TBA

Construction Details Average Values

  • U-value External Walls0.21 W/(m2K)(R4.8)
  • 140mm stud wall with R4.4 Knauf Wall batts, ply air control layer, 45mm service cavity with R1.3 Knauf batts.
  • U-value Floor0.45W/(m2K)(R2.2)
  • Concrete slab with hollow waffle pods and 50mm continuous layer of XPS beneath pods and ribs
  • U-value Roof 0.11W/(m2K)(R9.1)
  • Pitched roof with attic trusses insulated with two layers of R4.4 Knauf wall batts
  • U-value Glass0.64 W/(m2K)(R1.6)
  • Saint-Gobain 5:/14/5/14/:5 (Ar90)
  • U-Windows1.0 W/(m2K)(R1.0)
  • Neuffer Eco Plano
  • Ventilation Efficiency87%
  • Zehnder ComfoAir Q350 HRV