Before the cold season arrives, it is important to review the insulation of your roof and attic. The comfort of your property is at stake, but also the reduction of your energy consumption bills. Indeed, good roof insulation helps reduce heat loss in your home.
The roof: source of 30% of losses on average
A house has different points of heat loss according to professional analyses. Losses vary depending on the characteristics of the property and the development work that has been done. But on average, the roof would still be the largest source.
- The roof: 30%
The roof is the main source of heat loss in a house, especially an old building. On average, the energy loss is 30%, or even more if you have cat windows, a chimney, etc. To support your heating appliance and optimize the comfort of your home, a quote on roof insulation is therefore essential. Renovation is the only possible technique to remedy this loss.
- Other sources of loss
However, the roof is not the only source of heat loss available in the house. Make no mistake. In addition to the attic, the walls offer a loss of 20%, the windows and openings 15%, the floor and basements 15% and other surfaces in contact with the outside 15%.
What standard for house insulation in general?
You should know that insulating your home is not done haphazardly. There are standards to respect. The comfort of your rooms is at stake, but also respect for the rules of healthy house construction.
- The RT2012 standard
For all constructions dating from 2012, the construction and insulation standard in force is RT2012. Ask for a quote on roof insulation for the renovation of the attic and the entire house, to have a maximum energy consumption of 50 kWh/m2, is therefore still relevant.
- Soon the RT2020 standard
But a new standard has just emerged, particularly with regard to consumption energy of a house. This is the RT2020 standard. At the heart of this new standard, there is a desire to reduce the ecological impacts of heating systems and the use of less polluting heating appliances.
This new standard will be mandatory for all new constructions from January 2021 in France. It advocates an energy consumption of 12 kWh/m2.
How to insulate the attic?
To minimize heat loss from the house, you must first and foremost insulate the attic. Depending on your needs and your roof insulation quote, the craftsmen can offer you different techniques.
- Insulation of converted attics
For converted attics, you will need a discreet insulation system that guarantees the functionality of the premises in addition to its comfort. We think, among other things, of rock wool, glass wool, or even polyurethane foams to put in the walls.
These are insulation techniques that have proven themselves for years. Their effectiveness varies in particular depending on the characteristics of your attic room. An assessment by professionals before choosing the right insulation is essential.
- Insulation of lost attics
Insulating unused attics will cost you less and take less time. In addition, it will be more effective against heat loss. We are thinking in particular of the blowing method which makes it possible to simply and effectively cover every cm2 of the space under the roof.
For this insulation technique, you will need a special machine. Hence the importance of also calling on professional heating engineers.
- Advice from a professional heating engineer to help you
Certified heating engineers can rush to your site to advise you on the choice of insulation and the ideal insulation technique according to your desires and your available budget. Put more trust in insulation companies which generally offer fast and high-end service.
What quote for your insulation work?
Contrary to popular belief, the roof insulation quote will not necessarily be expensive. The State is currently proposing financing plans to facilitate the realization of this type of project.
- Insulation at 1 euro
Insulation at 1 euro is a way for the state to encourage individuals to engage more in roof renovation work, or even in bringing their insulation up to standard throughout the house. But how exactly does it work?
It is a system that involves polluting companies in order to repair the damage they cause to the environment because of their activity. Indeed, there are chemical spill rates to be respected and ecological damage to be done at the risk of penalties of all kinds. In order to compensate for their high rates, certain companies can buy quotes for insulation work on private homes and thus avoid state fines.
To take advantage of this offer, however, you must hire certified companies to carry out the work. All you have to do is ask them for a tailor-made estimate for your work and get started with roof insulation. You will have to pay the symbolic 1 euro at the end of the work as usual.
- Assisted loans of all kinds
Banks can also offer you subsidized loans for carrying out certain work which is not eligible for solidarity insulation pacts. These include credits such as the PTZ, tax credit, etc. They offer a certain capital against a monthly repayment over several years, but without interest rate or with low interest rates, because a part is covered by the state.
Assisted loans are generally used to finance ecological renovation work. Obviously, they are not aimed at just anyone. There are eligibility conditions to benefit from it.
- The conditions for being eligible for financing plans of this type
There are eligibility conditions to benefit from this funding. They vary from one system to another. But in any case, you must call on a certified craftsman to be able to benefit from these. In addition, as mentioned above, this must be work with the aim of minimizing heat loss and energy consumption in the house, particularly in the attic.