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The new energy requirements were first issued June 16, 2005. The requirements came into force January 1, 2006 with a transition period of 3 months until April 1, 2006 when the new requirements must be fulfilled in order to obtain a building permit. The new energy requirements are not only an implementation of the EPBD. They also impose stricter energy performance requirements in accordance with current Danish action plans for an increased 25 % energy saving in new buildings, compared to requirements before 1. January 2006.

An energy performance target is the main requirement for all types of buildings heated to at least 15 °C. The target is based on the supplied energy needed for operating the building. There are separate targets for housing (not including lighting) and non-domestic buildings (including lighting). The requirements are:

Housing: 70 + 2200/A kWh/m² year Non domestic: 95 + 2200/A kWh/m² year where A is the gross heated (conditioned) floor area in m2.

An extra allowance to the basic target is given to non-domestic buildings with high ventilation requirements for IAQ purposes, high lighting requirements, long operation hours or large hot water demand.

For all type of buildings the new energy requirements also include two classes of low energy buildings. Class two has an energy demand of 75 % or less if compared to a normal building, and class one has an energy demand of 50 % or less if compared to a normal building. Low energy buildings can be exempted from connecting to public networks with natural gas or district heating, which is otherwise obligatory in some areas.

The energy frame is supplemented by specific requirements for U-values, minimum boiler efficiency, pipe insulation, heat recovery, fan power efficiency etc. The supplementing requirements are normally not crucial to the design, but set only an outer bound for what is possible.

Governmental websites:

› www.ens.dk › www.ebst.dk

Other relevant websites:

› www.sbi.dk

› www.femsek.dk

Proof of compliance with the energy requirements must be made after the completion of the building in order to obtain the permit to use the building. Control of compliancy with building regulations is the responsibility of the commune where the building is located. In practice the control of the building in relation to the energy requirements is performed by the energy consultants who also issue the energy label, see later.

Requirements to existing buildings

The requirements for existing buildings undergoing renovation (Article 6) was presented in the same addendums to the Building regulations BR 95 and BR-S 98 as the requirements to new buildings and with the same enforcement schedule. As example the requirements to walls are an U- value better than 0.20 W/K m², the requirements to roofs are an U-value better than 0.15 W/K m² and the requirements to windows are an U-value better than 1.5 W/K m². The requirements to existing buildings are unchanged in BR 08.

In multi-family houses and non-domestic buildings, the 25 % rule (preamble 13) in the EPBD applies to all buildings, independent of floor area. Cost efficient energy saving measures are required if renovation of the building shell, or the energy installations, is higher than 25 % of the value of the building, excluding the value of the land, or if more than 25 % of the building shell undergoes renovation. Also cost efficient energy saving

EPBD Buildings Platform > P139_EN_Denmark_2008

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