2. List the work to be done
The energy audit report recommended above must include an energy consumption assessment, quantified indicators corresponding to the costs of the work, and a list of actions and/or work aimed at improving energy efficiency. As part of the renovation, it will be necessary to choose, from among the priority actions listed in the audit report, those that will eliminate the three main sources of energy loss.
2.1 Insulation work
This work remains a priority, as there is no point in installing high-performance energy production systems in buildings that are poorly insulated. Data from ADEME shows that priority should be given to insulating roofs, which can account for nearly 30% of heat loss. Walls come in second place, with heat loss rates of up to 25%. Next, windows,...
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Bibliography
Building Renovation & Energy Performance, Brigitte VU and Pascal LAUDE - Dunod Publishing (2020).
RE2020 and energy renovation / Practical guide - SENOVA, Éditions Eyrolles (2021).
RE 2020 Guide/Eco-building for everyone's comfort.
Regulations
Article R. 172-10-1 of the French General Tax Code ( décret n° 2021-1004 du 29 juillet 2021 ).
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