Passive Houses

What are passive houses

Passive houses are types of constructions defined by a low, almost nonexistent energy consumption, by a high thermic confort and a low risk of developing condensation or dampness.

The passive houses in our offer are built according to rigorous energetic efficiency standards for buildings imposed by the European Union, therefore we manage to significantly decrease the ecological footprint. The result? A building that requires minimal energy consumption, both for heating and cooling.

Passive houses are not an extension or an upgrade for current houses, but autonomous constructions that are brought to life using a  complex architectural design process.

It’s estimated that the total number of passive houses was between 35,000 and 50, 000 in Europe in the year 2016. The vast majority of this percentage were built in Germany and Scandinavia.

Standards

For a construction to be considered a passive house, it must abide by the following criteria:

The building must have a maximum energy consumption of 15 Kwh/m2 (4,755 BTU/sq ft; 5.017 MJ/sq ft) per year for both heating and cooling, calculated in Passivhaus Planning Package or to be designed with a top consumption of 10 W/m2 (1.2 hp/1000 sq ft).

The total consumption of main energy (heating, hot water and electricity) must not exceed 120kwh/mp3  (38,040 BTU/sq ft; 40.13 MJ/sq ft) a year.

The construction must not allow greater air loss than 60% of the houses’ volume per hour (n50 ≤ 0.6 /hour) at the pressure of one atmosphere, tested through a blower door or, alternatively, when measured at the surface of the facility, the air leak must not exceed 0.05 square feet per minute.


Passivhaus constructions manage to reduce up to 75% of the energy consumption needed for heating or cooling, comparable to the EU standard for new buildings. As a result, the Passivhaus standard offers a robust method of helping the industry reduce carbon emissions by up to 80%, a proposed measure according to EU legislation. The PassivHaus concept also applies to construction rehabilitation projects and offers great economic benefits.

Why choose passive houses?

The evidence and observations presented above prove that Passivhause constructions are manufactured in conformity to imposed standards, which is essential, given the fact that the difference between design aspirations and actual construction performance f