The law regarding energy transition for the 17th of august 2015’s green growth, stated that, to be decent, a dwelling has to meet a criterion of minimal energy performance. The decree of March, 9th of 2017 added clarity to this criterion, thus integrating energy performance to the decent property’s characteristics. Review on these added decency criteria.
What is an energy-efficient housing?
The decree of March,9th of 2017 modifies the 30th of January 2002’s one concerning the decent dwelling’s characteristics. The property is considered as energy-efficient for reasons related to its own design such as its airtightness and its ventilation which have to be appropriate.
The property has to be shielded against unwanted air infiltration.
The dwelling’s doors and windows as well as its walls and partitions leading to the outside or to unheated rooms need a sufficient airtightness.
The rooms’ openings leading to adjacent unheated rooms have to include doors and windows. Finally, the chimneys have to be equipped with a trapdoor.
Please note that all provisions aren’t practical in the French overseas territories.
The dwelling has to be designed to enable a sufficient ventilation.
Thus, the opening device and potential ventilation system have to be in good condition and allow the air renewal as well as a humidity evacuation adapted to the need of a normal occupancy and to the equipments’ functioning.
Luckily, the nature of a dwelling’s decency is determined independently of its occupancy situation (throughout the year by a large family or only a few weeks per year) and the energy cost.
Commencement date of these new decency criteria from 2018
Starting from January, 1st of 2018, dwellings will have to be shielded from “unwanted air infiltration” to be considered as decent. And starting from July, 1st of 2018 it will have to be equipped with an “adequate” ventilation system.