Article 9 6.

buildings officially protected as part of a designated environment or because of their special architectural or historical merit, or other heritage buildings, in so far as compliance with the standards would unacceptably alter their character or appearance, or if their renovation is not technically or economically feasible;

buildings used as places of worship and for religious activities;

temporary buildings with a time of use of two years or less, industrial sites, workshops and non-residential agricultural buildings with low energy demand and non-residential agricultural buildings which are used by a sector covered by a national sectoral agreement on energy performance;

residential buildings which are used or intended to be used for either less than four months of the year or, alternatively, for a limited annual time of use and with an expected energy consumption of less than 25 % of what would be the result of all-year use;

stand-alone buildings with a total useful floor area of less than 50 m2;

buildings owned by the armed forces or central government and serving national defence purposes, apart from single living quarters or office buildings for the armed forces and other staff employed by national defence authorities.