The energy standard also concerns thehouse extension. The latter must be designed to limit the energy consumption. Good news since beyond the extra space, the thermal comfort is also there without necessarily increasing your energy consumption.
Energy standard and extension: what regulations?
What is RE2020 for extensions?
La RE2020 is the abbreviation for Environmental Regulations 2020. This regulation, which applies to new buildings is a set of energy standards which frames the energy consumption of buildings. It thus sets maximum quantities of energy that a building can be authorized to consume for heating, lighting or air conditioning. It also looks at the quantities of carbon emitted over the entire lifespan of the building. To meet the thresholds it imposes, the extension builder must produce very well constructed buildings, with quality materials.
To find out more, read the article “ New house RE 2020 in the South-West: what consequences for my project? »
Is the RE2020 energy standard applicable to extensions?
Whatever its surface area and that of the existing building, the construction of a detached house extension, subject to planning permission (permission or or a prior declaration of works), enters into the fields of application of RE2020. The energy standard for new constructions applies.
RE2020 for extensions: what consequences?
RE2020 is a very demanding regulation in terms of energy standards. THE extensions as the new buildings built under its supervision consume very little energy and have only a low environmental impact.
The extensions are thus intended for:
– Reduce their energy consumption.
– Use a maximum of one carbon-free energy.
– Construction must emit few greenhouse gases.
– The extension must be designed to guarantee comfort in both winter and summer.
To better understand the advantages of a house extension read the article: “ House extension: expand without moving »
An RE2020 extension consumes little energy
Despite the additional surface area, your detached house extension will only slightly increase your energy consumption. In fact, everything is done to ensure that the extension limits its energy consumption.
A very well insulated extension that meets the energy standard
The role ofisolation, associated with very good airtightness, is to keep calories in the house as much as possible. The extension also controls air renewal, with the installation of controlled VMC which renews the air according to needs. Heating needs are thus limited as much as possible!
To go further, read the article “ 5 questions to understand the insulation of the new house ».
Take advantage of free heat supplies
A RE2020 expansion is often oriented to take maximum advantage of the sun's rays. These enter through large windows, preferably facing south and warm the extension which can even do without heating thanks to them! To succeed in building an extension of this quality, the builder implements the main principles of bioclimatism.
Better understand this subject by reading “ Building a bioclimatic house in Gironde: 11 tips for a cool house in summer »
The RE2020 expansion favors energy without greenhouse gases
For its meager heating needs, thenew house extension must use the most carbon-free energy possible. With the RE2020 energy standard, fuel oil, gas, like all fossil fuels will be banned in the extension which will prefer heat pumps, Or wood heating in this part of the house.
Extension: the coolest room in the house in summer!
One of the great advances in RE2020 is to force designers to take into account the summer comfort. No need for air conditioning to maintain an extension where life is good. Here again, the manufacturer uses the principles of bioclimatism by limiting solar input in summer. Shutters, sunshades, roof overhangs, home automation, choice of materials with high inertia which store heat, etc., many effective solutions exist.
RE2020 energy standard: carbon-free expansion
Reducing the carbon impact of construction now requires builders of house extensions to take into account the life cycle of materials from their design to their destruction. Manufacturers have evolved their techniques to reduce their greenhouse gas emissions as much as possible. Beyond that, new homes are turning to biosourced materials. Wooden extensions are attractive today for their low environmental impact because wood stores carbon during its growth and retains it throughout the life of the house. The timber frame extension is also very virtuous during the construction phase, making it easy to meet the requirements of environmental regulations.
To go further, consult the article “ What biosourced materials should I integrate into my new house? »
the energy standard plays a crucial role in house extension projects, ensuring not only legal compliance but also the energy efficiency, comfort and sustainability of the building. Complying with these standards makes it possible to reduce energy costs, reduce the carbon footprint and enhance real estate assets.
