4. Conclusion

Thermal simulation is therefore a key energy performance tool. It's a reliable tool, and its ergonomics are improving with each new version of the software.

These software programs are very precise and require a large number of assumptions to be entered in order to be reliable. This is where vigilance is called for. Indeed, in addition to the necessary rigor, the range of technical skills required to carry out a calculation must be very broad, including thermal bridge calculations, thermal resistance values for joinery, and therefore precise knowledge of the building. But it also requires in-depth knowledge of energy production, regulation, emission and distribution systems.

This type of calculation has been democratized through the use of labels, or by building owners who are more involved in their energy consumption. A growing number of...