Sustainable Development

The regulatory requirements for achieving the EU objectives for smart, sustainable and inclusive growth are directly related to the preparation and implementation of the strategic documents of EU legislation into the Bulgarian legislation. This will inevitably have an  effect on the construction industry in Bulgaria in the future. In addition, attempts to improve the characteristics of the buildings will have several beneficial effects.

TerraExpert aims to promote and explain to its clients the concept of the benefits and advantages of passive buildings. The company does not only sell suitable properties but actively assist at the request of every client who is interested in building a passive house.

A passive house is a building with a comfortable interior climate maintained without active heating or cooling systems (Adamson 1987 and Feist 1988). The building is heated or cooled itself, that’s why the definition is “passive.”

Passive is a building that meets the following mandatory requirements and standards:

• Specific needs of heating and ventilation no more than 15kWh / m2 per year.
• Total energy consumption of the building – no more than 120kWh / m2 per year.
• Air access of the building must be no greater than 0.6 times its volume at a differential pressure of air inside and outside of 50 Pa.