Rose House Napier South

Project Team

Architecture & Passive House Design Black Pine Architects - blackpine.co.nz
Builder Welch Builders & Construction Ltd - welchbuilders.co.nz

Certifier Sustainable Engineering Ltd – sustainableengineering.co.nz

Passive House Metrics

  • Heating Demand24.6 kWh/m2/year
  • Heating Load12.3 W/m2 
  • TFA102.4m2
  • Form Factor4.1
  • Air leakage @ 50Pa0.7 ACH/hour
  • PER demand62.9kWh/m2/year

Passive House Database - TBA

Construction Details Average Values

  • U-value External Walls 0.23 W/(m2K)(R4.4)
  • Ecoply, 140mm timber framing with R4.1 Kanuf batts and a 45mm service cavity with R1.4 batts
  • U-value Floor0.34W/(m2K)(R3.0)
  • RibRaft X-Pod with 75mm Expol platinum board beneath
  • U-value Roof 0.14W/(m2K)(R7.3)
  • Hyjoist roof with two layers of Knauf R3.6 ceiling batts
  • U-value Glass0.65 W/(m2K)(R1.5)
  • Imported high-performance triple glazing
  • U-Windows1.1 W/(m2K)(R0.9)
  • GEALAN S9000 (uPVC frames with alu-clip exterior)
  • Ventilation Efficiency 83%
  • Zehnder - ComfoAir Q350