7. Influence of Shading Systems on Energy Performance of Buildings With Large Glazing Areas

Abstract

The paper aims at evaluating the energy performance of an average office building characterized by high glazing ratio and various shading degrees. Two hypotheses have been considered and compared: i) the building without shading and ii) the building having a fixed shading system with vertical and horizontal elements. Results show a small increase in heating energy demand of 18,18% because of the blocked heat gains during winter and a significant decrease in cooling energy demand of 80,69%. By using a mobile shading system, the zero energy target can be achieved beginning with the end of March up to the beginning of November (except for one third of July and one third of August).