August 2017, CEN  published the new standard EN  16798-3:2017 “Energy performance of buildings - Ventilation for buildings – Part 3: For nonresidential buildings – Performance requirements for ventilation and room-conditioning systems (Modules M5-1, M5-4)”, which supersedes the EN 13779:2007. This standard has been produced to meet the requirements of Directive 2010/31/EU 19 May 2010 on the energy performance of buildings (recast), referred to as “recast EPDB”, while the substituted EN 13779:2007 was produced to meet the requirements of previous Directive 2002/91/EC 16 December 2002 on energy performance of buildings referred to as “EPBD”. Today, a new recast of the energy performance buildings directive is ongoing and should be finalized on April 2018 (see article page 70), but that should not have a significant influence on this specific standard at least for other ten years. This standard shall be given the status of a national standard at the latest by February 2018.

This European Standard is part of a series of standards aiming at international harmonization of the methodology for the assessment of the energy performance of buildings under a mandate given to CEN  by the European Commission, called ‘recast EPBD’ standards or just EPB standards. These standards have a new common format: two documents for each standardized item, a true standard EN xxxx and a supporting technical report CEN/TR xxxx. The former reports a set of normative rules, while, the latter explains how to apply the related EN standard and gives informative additional rules and data. Because the EPB standards have been produced with the aim of supporting the recast EPBD and its application at national level, a certain degree of freedom in their application was a mandatory request.

Livio Mazzarella, Jaap HogelingPages 06 - 12

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