When it is of good quality, the house’s thermal insulation can have a significant positive impact on your heating bills. The energy bonus, distributed by the State as part of the energy transition, can help you finance the thermal renovation of your home.

The role of the roof in heat leakage

Without good thermal insulation, a house can quickly turn into an energy abyss. Poorly insulated homes allow large amounts of heat to escape to the outside, about 75% of the heat produced by heating appliances. The result is a significant waste that greatly increases heating bills. However, good insulation could avoid this inconvenience and help reduce your energy consumption. Thus, nearly 500 euros can be saved, provided that the roof or walls of the house are insulated and the work is properly carried out.

The need for a specialist

Insulating your attic or walls is the best way to reduce your energy consumption, but only if the work is done properly. Insulating attics requires multiple precautions for which the help of a professional will not be too much. First of all, it is important that your insulation is adapted to your means as well as your needs. A professional will advise you on the choice of interior or exterior insulation and the different insulating materials that can be used: glass wool, cellulose wadding, polystyrene or phenolic foam. These materials, whether in the form of foam rolls, rigid panels or pulverized granules, must be protected from moisture, which can affect their efficiency and durability. For this reason, the choice of an appropriate vapour barrier will also be of great importance. These different components of your insulation must be carefully installed and properly maintained by a maintenance mesh. For wall insulation, a finishing plaster will be required so that the materials installed do not disfigure the facades of your house. For all these reasons, it will be more prudent to use a thermal renovation specialist.

Subsidies and energy transition

Since reducing energy needs and greenhouse gas emissions is a national issue, the State has been distributing, for several years, numerous financial assistance as part of the energy transition. Aimed primarily at the most modest households, they encourage them to undertake the renovation of their homes. Far from being insignificant, these grants can cover more than half the cost of the work done. For lost attics, insulation work can even be financed entirely by the energy premium. Otherwise, it is possible to take out a loan at zero interest rate, to benefit from a tax credit, a VAT reduction or subsidies from the National Housing Agency, all of which greatly facilitate the access of the French to thermal insulation work.