Passive Houses

A passive house is more than just an energy efficient house. The most important factors to be considered when building a passive house are:

  • correct positioning of the building
  • correct architectural design
  • thermal envelope of minimum 40 cm
  • appropriate doors and windows
  • adequate air tightness
  • ventilation by recuperation
  • good choice of the heating system
  • making rainwater useful

As a result energy consumption is very low (giving it a U-value of 0,10 W/m²) less than 0,10 kWh/m².