The reduction of the energy demand of a hall-type object through vegetative roof constructions

Technical university of Kosice, Faculty of Civil Engineering, Institute of Architectural Engineering, Vysokoškolská 4, 042 00 Kosice, Slovakia

^* Corresponding author: jan.domanicky@tuke.sk

Abstract

The topic of the energy efficiency of buildings is still relevant, and this article focuses on one form of passively reducing their energy demands, in this case, for a hall-type structure. Hall-type structures are largely horizontal constructions, meaning that their length and width often significantly exceed their height. As a result, a larger cooled surface area of the roof is expected in comparison to the cooled surface area of the facade. While not the sole factor influencing the selection of a structure or balance calculations, it was one of the initial considerations. It is also anticipated that with a larger construction area and its opening structures, there will be a greater area available for covering with a green roof. The coverage of the building's energy facilities occupy a certain percentage of the roof construction area. The work then delves into the energy balances of the given structure under various operational conditions, based on measurements of the thermal-technical improvement of the construction, depending on its composition and coverage with a green structure. The results include balance-based energy savings achieved through the green element, as well as the percentage savings in different operational conditions.