Rinnovate Glossary

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Rinnovate Index


Existing building undergoing renovation works

  • Light renovation.

The renovation works are dedicated to bring the building into a good state, e.g. in the case of a change of tenant. These works do not often involve the central heating system but may apply to individual heating systems. They may include changing the wall boiler, scaling of the heating system or DHW network, changing the heaters for direct electric heating systems. No important intervention is made on the building shell.

  • Major renovation.

Major renovation is dealing with important works in the building and especially on the building shell (e.g. a change of façade in office building or the insulation of outside facades). Various definition of this term exists and may vary from country to country. Major renovations are subject to legal requirements in most countries as imposed by the EPBD article 6.

In the EPDB recast (art. 2) major renovation means the renovation of a building where: "(a) the total cost of the renovation relating to the building envelope or the technical building system is higher than 25% of the value of the building, excluding the value of the land upon which the building is situated or; (b) more than 25% of the surface of the building envelope undergoes renovation. Membre Stater may choose to apply option (a) or (b).

Retrofitting : riequipaggiamento

EPBD The Energy Performance of Buildings Directive (EPBD) lays down requirements as regards the application of minimum requirements on the energy performance of large existing buildings that are subject to major renovation. The EPBD indicates the following about major renovation: “ Major renovations are cases such as those where the total cost of the renovation related to the building shell and/or energy installations such as heating, hot water supply, air-conditioning, ventilation and lighting is higher than 25 % of the value of the building, excluding the value of the land upon which the building is situated, or those where more than 25 % of the building shell undergoes renovation.”

R.E.S. Renewable energies sources

energy efficiency: means using less energy inputs while maintaining an equivalent level of economic activity of service (http://europa.eu/rapid/pressReleasesAction.do?reference=MEMO/11/149&format=HTML&aged=0&language=en&guiLanguage=en)

energy saving: is a broader concept that also includes consumption reduction through behaviour change or decreased economic activity. Example of energy savings withouth efficiency improvements are heating a room less in winter, using the car less, or enabling energy saving modes on a computer (http://europa.eu/rapid/pressReleasesAction.do?reference=MEMO/11/149&format=HTML&aged=0&language=en&guiLanguage=en)