52 NORMATIVA DI GIUSEPPE IOTTI* THE 2025 UPDATE TO THE DECREE ON MINIMUM ENERGY REQUIREMENTS FOR BUILDINGS INDIRECTLY INVOLVES LIFTS AS WELL. FOR CERTAIN TYPES OF INTERVENTIONS, INSTALLERS MUST PROVIDE TECHNICAL DATA USEFUL FOR THE BUILDING’S ENERGY REPORT. LET’S SEE WHAT THEY ARE AND HOW TO ESTIMATE THEM ACCORDING TO UNI/TS 11300-6 LIFTS AND BUILDING ENERGY PERFORMANCE: THE NEW DATA REQUIRED BY DM OCTOBER 28, 2025 On December 5, the DM of October 28, 2025, from the Ministry of the Environment and Energy Security was published, updating the previous decree of June 26, 2015, on the “Application of calculation methodologies for energy performance and definition of prescriptions and minimum requirements for buildings”. As we will see, this update also concerns lift installers, who may be asked to provide the designers of the building technical report with certain data related to the vertical transport system. This information must therefore be collected and, in some cases, calculated. The provisions will become mandatory starting from June 2, 2026, with the entry into force of the measure. IN WHICH BUILDINGS DO THE NEW PROVISIONS APPLY? Let’s first define for which buildings these prescriptions will apply. Regarding the lift aspect, strictly residential buildings are excluded, while all others are included (such as schools, hotels, convents, barracks, hospitals or nursing homes, penitentiary institutions). Obviously, this primarily refers to new buildings: that is, those for which the building permit was requested after the date of entry into force of the decree. This concerns us if the construction includes the installation of a lift or another vertical transportation system, which will obviously be new as well. However, the obligation extends also to other types of interventions. New buildings also include those built after the demolition of pre-existing ones. Apart from this, there are three other situations in which the calculation methodologies and documentation must be updated. First, expansions of existing buildings. For the purposes of the decree, “expansion” means an increase in conditioned volume greater than 15% of the pre-existing volume or in any case 500 m3. Note that the following seems to apply—and this also for the next two points: if the building already has one or more lifts, or it is simultaneously equipped with a new one, the lift installer may be required to provide data useful for drafting a new energy performance report. Second, the decree also applies to “major renovations”, that is, interventions involving an incidence greater than 25% of the overall gross dispersing surface area of the building. Naturally, this assessment falls to the designer appointed by the building owner, who, in such cases, will ask the lift installer for data on the lift(s) already in operation or those newly installed concurrently with the intervention. In certain circumstances, the renovation of only the heating system is also defined as a major renovation. Finally, there is the case of energy requalification, that is, all those interventions that, although not falling into the cases already listed, have an impact on the energy performance of a building. Theoretically, therefore, this also includes the installation of a lift or another vertical transportation system where there was none before, or the significant modernization of an existing one. Although in general the consumption of a lift has a limited impact on the building’s overall energy demand, it is possible that even in these cases the lift installer will be asked to provide the technical data we will describe later. In all these cases, the designer, as was often already done in the past, must prepare a technical report and subsequently declare the conformity of the works to the project. We
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