... requirements for heating is 11.3% for Athens and 6.1% for Thessaloniki. On the contrary, for the cooling period of the 1993-2002 decade, an increase of the energy demands of the building for both ... ambient dry-bulb temperatures for the two cities and for the two decades, as well as for the twenty year period of 1983-2002. The values of the two decades for the two cities are plotted in ... Figures 4-6 for Athens and 7-9 for Thessaloniki for the two decades. The winter period, during which the buildings need heating, includes the months November to April. Similarly, the summer...