Directive 2010/31/EU of the European Parliament and of the CouncilShow full title

3. The methodology shall be laid down taking into consideration at least the following aspects: U.K.

(a)

the following actual thermal characteristics of the building including its internal partitions:

(i)

thermal capacity;

(ii)

insulation;

(iii)

passive heating;

(iv)

cooling elements; and

(v)

thermal bridges;

(b)

heating installation and hot water supply, including their insulation characteristics;

(c)

air-conditioning installations;

(d)

natural and mechanical ventilation which may include air-tightness;

(e)

built-in lighting installation (mainly in the non-residential sector);

(f)

the design, positioning and orientation of the building, including outdoor climate;

(g)

passive solar systems and solar protection;

(h)

indoor climatic conditions, including the designed indoor climate;

(i)

internal loads.