PassivHaus: Performance

 What is a Passivhaus?

 The definition of a passivhaus is based on its extremely low energy need. Passivhaus buildings consume less than a quarter of the energy required for a standard building. They have no separate heating systems apart from heat recovery ventilation. The efficiency is based on well-insulated and air-tight passive building envelope solutions.

 Although there are initial higher construction costs, Passivhaus construction pays for itself. On average, a Passivhaus building gathers space heating savings at least 70 % a year.

 Designing with Passivhaus standards has revolutionized indoor air quality and energy efficiency.

 Fresh air is delivered continuously by the use of an Energy Recovery Ventilator (ERV).

 As such, the decreased heating demand can be covered by a small ERV system. The decreased heating demand allows for greater thermal comfort (no drafts or cold feet) in a passivhaus building since it is insulated, the joints are sealed, and the thermal bridges eliminated.

 Unlike other green building programs, there are no specific expensive demands or limits for the designing and architecture, only metrics to achieve. Finally, thick and well-insulated structures also provides effective sound insulation, providing quiet rooms in a noisy environment.

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