Midway House Dunedin

   House Profile

Project Team

Architecture & Passive House Design Architype Ltd. -  architype.co.nz
Builder WD Homes - wdhomes.co.nz/

Certifier Sustainable Engineering Ltd – sustainableengineering.co.nz

Passive House Metrics

  • Heating Demand14.8 kWh/m2/year
  • Heating Load10.4 W/m2 
  • TFA158.2m2
  • Form Factor3.4
  • Air leakage @ 50Pa0.3 ACH/hour
  • PER demand40.4kWh/m2/year

Passive House Database -TBA

Construction Details Average Values

  • U-value External Walls0.22 W/(m2K)(R5.04)
  • Kingspan TEK SIP (142mm) plus 45mm service cavity
  • U-value Floor0.17W/(m2K)(R5.78)
  • concrete slab on grade with 200mm EPS insulation underneath, 50mm XPS edge and footing/thickening insulation
  • U-value Roof 0.14W/(m2K)(R6.95)
  • Timber truss and skillion roof with pink batts fibreglass insulation and Intello air control layer
  • U-value Glass0.58 W/(m2K)(R1.74)
  • Silverstar EN2plus (8:/14/8/14/:8 90% Ar) mixture (4:/20/4/20/:4 90% Ar)
  • U-Windows0.9 W/(m2K)(R1.1)
  • Thermadura Designline 90 Passive Timber/Alu windows
  • Ventilation Efficiency 87%
  • Zehnder Group Nederland B.V. - ComfoAir Q350 HRV, Comfort Vent Q350 HRV