Wildweed Farm Catterick WA

    House Profile

Project Team

Architecture & Passive House Design Roger Joyner - Passivhaus Perth - passivhausperth.com.au
Builder J & K Reed Construction - jkrc.com.au

Certifier Sustainable Engineering Ltd – sustainableengineering.co.nz

Passive House Metrics

  • Heating Demand14.0 kWh/m2/year
  • Heating Load9.6 W/m2 
  • TFA202.3m2
  • Form Factor3.4
  • Air leakage @ 50Pa0.3 ACH/hour
  • PER demand42.3kWh/m2/year

Passive House Database - TBA

Construction Details Average Values

  • U-value External Walls0.21 W/(m2K)(R4.72)
  • 90mm timber framed wall with R2.2 Bradford Gold batts and 100mm Masterwall EPS external insulation with a rendered finish
  • U-value Floor0.51W/(m2K)(R1.96)
  • 100mm thick concrete slab on ground with 50mm XPS insulation beneath.
  • U-value Roof 0.13W/(m2K)(R7.7)
  • 200mm thick Bondor SolarSpan roof panels with 90mm service cavity insulated with R2.2 Bradford Gold wall batts
  • U-value Glass0.48 W/(m2K)(R0.7)
  • Optilite - 5Cl/18 90%Ar/5Comfort
  • U-Windows1.7 W/(m2K)(R0.6)
  • Double glazed white uPVC frames (Kommerling C70)
  • Ventilation Efficiency77%
  • ComfoAir Q350 HRV