Olliver Perkins House Yelverton,

Project Team

Architecture Altar Projects - altarprojects.co.nz
Passive House Design Sustainable Engineering Ltd – sustainableengineering.co.nz
Builder Fairfield Construction - fairfieldconstruction.co.nz
Structural Engineer The Healthy Home Cooperative Ltd - healthyhome.kiwi
Certifier PHI

Passive House Metrics

• Heating Demand21.0 kWh/m²/year
• Heating Load13.4 W/m² 
• TFA169.5m²
• Form Factor4.5
• Air leakage @ 50Pa0.4 ACH/hour
• PER demand39.5kWh/m²/year

Passive House Database - TBA

Construction Details Average Values

• U-value External Walls 0.20 W/(m²K)(R4.99)
• 165mm Formance Neopor SIPS with 45mm service cavity insulated with Knauf batts.
• U-value Floor0.22W/(m²K)(R4.5)
• Max Raft S-grade EPS solid pod slab.
• U-value Roof 0.18W/(m²K)(R5.52)
• 215mm Formance Neopor SIPS
• U-value Glass1.16 W/(m²K)(R0.87)
• Lightbridge double glazing
• U-Windows1.5 W/(m²K)(R0.7)
• Optimal Windows
• Ventilation Efficiency 82%
• Stiebel Eltron 280