When it comes to saving energy, the little tips are not lacking: turn off a room when you leave, collect rainwater .
But for the ecological and financial gain is real, better set the problem at its source and opt for a home low consumption at a suitable manufacturer.
Construction: labels for the environment
A label is authoritative in this area: the BBC label, Low Consumption Building. This certification guarantees “eco-efficient” housing, whether you call on an architect or a builder of individual houses . Concretely, a house labeled BBC does not exceed 50 kilowatt-hour of energy per year per square meter … about 5 times less than a traditional home.
More recently, as RT 2020 approaches, the E + C- label has appeared. The latter shows excellent energy performance (positive energy building, E +) and a minimal environmental impact (low carbon building, C-). It applies to new constructions and concerns their entire life cycle.
On the one hand, energy performance is evaluated by the degree of exploitation of renewable energies, the thermal insulation of a building or its ability to self-consume. On the other hand, the criterion Carbon measures the energy consumption of a building and, as its name suggests, its carbon footprint.
A green design from A to Z
Thinking upstream of your house saves money while reducing your carbon footprint. In order to achieve this, several parameters are taken into account from the design phase:
- thermal insulation of doors, windows and roof;
- orientation of the dwelling (in the south, the sun heats naturally more);
- heating mode (gas boiler, installation of photovoltaic panels …).
For architects, reducing the carbon footprint requires thinking about the structural work over its entire lifetime, from design to recycling. The result is the choice of materials, the way to limit waste and consume energy during construction.
A low energy house: a step for the planet and for your wallet.