Āhuru Raglan

House Profile

Project Team

Architecture & Passive House Design TAWA Architecture Ltd - tawaarch.co.nz

Interior Design Kim Salt

Builder Brown Construction - brownconstructionltd.co.nz

Interior Joiner Rik Ball - tracymcewendesign.co.nz
Certifier Sustainable Engineering Ltd – sustainableengineering.co.nz

Passive House Metrics

  • Heating Demand14.6kWh/m2/year
  • Heating Load12.2W/m
  • TFA143.1m2
  • Form Factor3.9
  • Air leakage @ 50Pa0.3 ACH/hour
  • PER demand30.8kWh/m2/year

Passive House Database - TBA

Construction Details Average Values

  • U-value External Walls 0.18 W/(m2K)(R5.49)
  • Cladding / Ply RAB / 140 Timber Wall with fibre Insulation / SIGA Majpell / 45mm Service cavity with fibreInsulation / Plasterboard. Several walls 140 service cavity insulated.
  • U-value Floor0.24W/(m2K)(R4.16)
  •  Concrete slab MaxRaft 250 insulated floor with brick edge
  • U-value Roof 0.16W/(m2K)(R6.33)
  •  Truss Roof with 150mm fibre insulation / SIGA Majpell / 135 fibre insulated service cavity / plasterboard
  • U-value Glass0.64 W/(m2K)(R1.56)
  • PlaniTherm XN (4:/18/4/18/:4 90% Ar)
  • U-Windows1.1 W/(m2K)(R0.9)
  •  EcoWindows Premium 78mm profile
  • Ventilation Efficiency 76%
  • Zehnder  - ComfoAirQ450