They are the latest buzz in energy-efficient living. There are about 15,000 of them around the world with the majority in German speaking countries or Scandinavia. They are called "a revolution in building design," but what are they?
Still confused? Me too. Let me clarify. The whole point is for the structures to allow, or rather create, a temperature comfortable space without the use of a radiator or furnace. It's all about sustainability. The buildings are designed using passive solar building design techniques, which means:
- They're hermetically sealed (airtight)
Thermogram showing the heat escaping a traditional building (left) versus the containment in the passive house (right)