Passive House Buildings have 3 Main Requirements:
- 85-90% less heat than a new code-built home,
- A stringent air-tightness rating based on a test by a 3rd party energy analyst, and
- A maximum total energy consumption per square metre of floor space per year, which includes all energy usage in the building, including space heating and cooling, domestic hot water supply, ventilation equipment, lighting, appliances and electrical loads.