Passivhaus is the leading standar for energy-saving construction all over the world. The Passivhaus concept was developed by Professor Wolfgang Feist in 1988, and in 1990 the first building was constructed with these features in Darmstadt (Germany). Since then, more than 15,000 buildings have been built under these premises worldwide.
One of the main reasons for its growing popularity is that it offers proven solutions to achieve buildings that require 80% less heating energy use than the building built under the current regulations.
Instead of using complicated designs, or complex and expensive systems based on renewable energy, Passivhaus focuses on maximizing the insulation, enhanced airtightness and paying special attention to avoid thermal bridges. Combining this together with the optimization of solar gains and a mechanical ventilation system with heat recovery, the designs can achieve a healthy and comfortable indoor conditions, but requiring a minimum energy demand.