Faced with the energy disaster that threatens Europe as winter approaches, the query of the energy efficiency of housing is turning into central. But in France, the reliability of diagnoses is as soon as once more singled out by the UFC-Que Choisir affiliationin a research revealed on Thursday.
The affiliation had already sounded the alarm in a survey published in 2017. With the implementation of a single calculation method from July 2021the Ministry of Housing had promised that the new DPE could be “More reliable“. But the objective is not achieved, deplores the UFC-Que Choisir. “Our research highlights grades typically with variable geometry in phrases of ECD but additionally of really helpful work”underlines Gwenaëlle Lejeune, jurist at the UFC-Que Choisir.
Significant diagnostic discrepancies
The affiliation has made 34 diagnoses in seven facilities positioned in several areas of France. Each of the homes was subsequently the topic of 4 or 5 totally different DPEs, all carried out by firms showing on the government website itemizing licensed diagnosticians.
UFC-Que Choisir observes important variations relying on the professionals concerned. Six of the homes”have not been recognized in the same energy class”, signifies the affiliation. For one of them, the hole is three courses since the grades go from B to E, “while it is low consumption”notes the affiliation.
This distinction can have critical penalties on the sale or rental value and on the estimate of energy consumption payments. Above all, “the relevance of the DPE is more essential than ever given the consequences of qualifying housing as a thermal sieve“. The Climate regulation offers for a ban on renting the most poorly insulated lodging from subsequent 12 months.
Different work suggestions
Similarly, of their diagnoses, the firms didn’t advocate finishing up the identical work. The professionals are “unable to all agree on the main source of heat loss from dwellings“, notes the UFC-Que Choisir. “For the same property, the DPE of a diagnostician indicates that the walls weigh for 49% in the loss of heat from the dwelling, when that of one of its competitors indicates that they only weigh for 19%.” Results : “Estimates of work deemed important for the identical home range from simply over 3,000 euros to 10 occasions extra for an additional diagnostician“, signifies the affiliation.
Review skilled certification
ECD “constitutes a major issue with regard to the consequences it may have on the fate of a property. It must be reliable”, notes Gwenaëlle Lejeune. UFC-Que Choisir welcomes the reform of July 2021 however “you may’t be glad with having folks thought-about competent who come to your lodging, test it and in the event you deliver another person in, you might have a distinct outcome“, underlines the lawyer.
The UFC-Que Choisir survey subsequently concludes that “certification is in no way a guarantee of quality” and asks the authorities to evaluation the certification course of for energy prognosis professionals. In addition, with the new DPE system applied in July 2021, consumers or tenants can contest the evaluation carried out in the event that they imagine that it’s incorrect. UFC-Que Choisir asks the authorities to increase this opposability to suggestions for work to be carried out.