Meadowstone Passive House Wanaka

   House Profile

Project Team

Architecture & Passive House Design Hiberna Ltd - hiberna.co.nz

Builder MA Building - mabuilding.co.nz

Certifier Sustainable Engineering Ltd – sustainableengineering.co.nz

Passive House Metrics

  • Heating Demand13.4 kWh/m2/year
  • Heating Load13.2 W/m2 
  • TFA141.6m2
  • Form Factor4.5
  • Air leakage @ 50Pa0.3 ACH/hour
  • PER demand35.4kWh/m2/year

Passive House Database - TBA

Construction Details Average Values

  • U-value External Walls0.18 W/(m2K)(R5.55)
  • 190mm timber framed wall with two layers of TerraLana R2.4 batts, Intello air control layer, 45mm service cavity with TerraLana R1.2 batts.
  • U-value Floor0.11W/(m2K)(R8.80)
  • Reinforced concrete slab on 300mm VH grade EPS.
  • U-value Roof 0.10W/(m2K)(R10.46)
  • Skillion roof with parallel chord trusses and two layers of TerraLana R4 batts, 7mm ply air control layer and 90mm service cavity with TerraLana R2.4 batts.
  • U-value Glass0.55 W/(m2K)(R1.82)
  • Imported high-performance triple glazing
  • U-Windows1.0 W/(m2K)(R1.0)
  • Bayerwald aluminium clad timber windows, HST HA97
  • Ventilation Efficiency80%
  • Stiebel Eltron LWZ280