2. Identify the work to be done
The energy audit report recommended above must include an assessment of energy consumption, quantified indicators corresponding to the cost of work, and a list of actions and/or work aimed at improving energy efficiency. In the case of renovation, the priority actions listed in the audit report should be selected to eliminate the three main sources of energy loss.
2.1 Insulation work
This work remains a priority, as there's no point in installing high-performance energy production systems in thermal flats. ADEME data show that priority should be given to insulating roofs, which can account for almost 30% of heat loss. Walls come second, with a loss rate of almost 25%. Next come windows, doors and floors. The type of material, its thickness and the installation...
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Bibliography
Rénovation des bâtiments & performance énergétique , Brigitte VU and Pascal LAUDE - Édition Dunod (2020).
RE2020 et la rénovation énergétique / Guide pratique - SENOVA, Éditions Eyrolles (2021).
Guide RE 2020/Eco-construire pour le confort de tous.
Regulations
Article R. 172-10-1 of the décret n° 2021-1004 du 29 juillet 2021 .
Normative reference
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