Short Answer #
Passive Houses are designed to use significantly less energy while maintaining consistent indoor comfort, whereas standard New Zealand homes are built to minimum code and often experience heat loss, draughts, and temperature fluctuations.
Overview #
In New Zealand, most homes are built to meet minimum building code requirements. Passive House takes a different approach, focusing on reducing energy demand and maintaining a stable indoor environment year-round.
Key Points #
- Passive Houses use far less energy for heating and cooling compared to standard homes.
- Standard homes often have cold spots and temperature swings, while Passive Houses maintain a consistent temperature throughout.
- Passive Houses are carefully sealed to prevent uncontrolled air leakage. Standard homes are typically much leakier.
- Passive Houses use mechanical ventilation to maintain fresh air. Standard homes often rely on opening windows.
- In everyday living, rooms stay at similar temperatures, heating demand is reduced, condensation is minimised, and air quality is consistently high.
Common Questions #
Is Passive House overkill for NZ? Not at all. Many NZ homes would benefit from improved performance.
Can a standard home be upgraded to Passive House level? It is difficult and costly. It is far more effective to design for performance from the start.
Next Step #
If you are planning a new home, our team can help you understand what level of performance is possible and where to focus your budget.
