The Heights Whare Wānaka

Project Team

Architecture Virginia Barlow Architecture - vbalimited.co.nz

Passive House Design Sarah Allen
Builder Davidson Building Limited
Certifier Sustainable Engineering Ltd – sustainableengineering.co.nz

Passive House Metrics

• Heating Demand29.2 kWh/m²/year
• Heating Load16.5 W/m² 
• TFA86m²
• Form Factor4.4
• Air leakage @ 50Pa0.6 ACH/hour
• PER demand73.4kWh/m²/year

Passive House Database - TBA

Construction Details Average Values

• U-value External Walls 0.20 W/(m²K)(R5.04)
• 140mm wall with R4.1 Kanuf batts / Intello air control layer / 45mm Cavity with R1.2 Terra Lana batts / plasterboard
• U-value Floor0.15W/(m²K)(R6.53)
• Concrete slab on grade with 200mm Expol EPS platinum with graphite
• U-value Roof 0.08W/(m²K)(R11.82)
• Parallel chord truss and raked ceiling with R5.2 Knauf batts / Intello air control layer / 45mm service cavity with R1.2 Terra Lana batts / plasterboard
• U-value Glass0.52 W/(m²K)(R1.92)
• Thermadura Climaguard Premium2 (4:/20/4/20/:4 90% Ar)
• U-Windows0.9 W/(m²K)(R1.1)
• Thermadura Natureline 90 timber frames
• Ventilation Efficiency 85%
• Zehnder ComfoAir Q350 HRV