The RT 2012 (Thermal Regulation 2012) is a regulation in force since January 1, 2013 for all new house constructions. It imposes certain requirements to respect when building your home that will limit its energy consumption.
RT 2012 in a nutshell
The RT 2012 imposes 3 main requirements of results and some requirements of means. These requirements simply allow current homes to have a low consumption threshold. To meet this objective, several requirements have been put in place. These requirements value the intrinsic quality of your home, the equipment and systems used, and finally the summer comfort. In addition, RT 2012 allows the use of at least one renewable energy. A good point for the planet, but also for your wallet.
1st requirement of results of the RT 2012: energy efficiency of the building
This requirement applies to the intrinsic design of your home. It is defined by a coefficient, called Bbiomax, and makes it possible to limit the energy needs of the house thanks to a bio climate design. It is completely independent of the energy systems in place. Thus, the insulation, the treatment of the thermal bridges or the materials used will be reinforced, better studied and more efficient.
2nd requirement of the results of the RT 2012: energy consumption
This requirement, defined by the Cepmax coefficient, requires setting up more efficient energy equipment, which consumes less. Indeed, having a building that is perfectly efficient from an energy point of view would not do much if the equipment you use consumes a lot and is not energy efficient, and vice versa. Thus, this requirement relates to consumption of heating, lighting, hot water production or cooling consumption.
The cepmax is set at 50 kWhep / (M2.an). This is the French average, this value varies according to the region in which you are located.
3rd requirement of results of the RT 2012: summer comfort in non-air-conditioned buildings
The regulation called « summer comfort » or « Tic » requires that the internal temperature reached during a 5 hot days sequence must be lower than a reference temperature (Tic) in non-air-conditioned buildings.
The government imposes that it does not exceed 33 ° C in order to avoid excessive use of air conditioning during high heat.
The means requirements of the RT 2012:
The RT 2012 finally imposes several requirements of means:
- Treatment of airtightness
- Minimum surface area of picture windows (1/6 of the living area minimum)
- Treatment of thermal bridges
- Systems for measuring energy consumption
- Use of at least one renewable energy
RT 2012 supports the Energy Transition Law to empower everyone in the fight against global warming.