How do we reduce carbon emission of our buildings? Well there is many different ways to do it. One of these is to reduce as much as we can the energy loss of our building. Keeping the warm inside, for cold climate, or the cold inside for warmer climate. Matt Bridgestock is explaining to us how the Passivhaus Standard has been designed to ensure an healthy environment to the occupant of the building and also reduces as most thermal losses. In this episode we are going to learn what is the Passivhaus, its challenges, opportunities, limitation and how to design a Passive House.