ENERGY PERFORMANCE OF THE EDUCATIONAL BUILDING ENVELOPE ACCORDING TO A PASSIVE AND LOW-ENERGY STANDARD

Abstract

High energy demands and obligation for building energy certification make an impact on architectural design and building construction. The paper aims to present energy performance of the educational building envelope in a passive and low-energy standard in the climatic conditions of the north zone of the Republic of Srpska (Bosnia and Herzegovina). The case study of design project for the building of Faculty of Architecture, Civil engineering and Geodesy, which construction started in 2011 in Banja Luka, serves as the basis for the presented research . The original plan for passive educational building development required large investments, which unfortunately were not provided. Planned 179
construction costs with new concept were reduced, not only with lower requirements of the envelope energy performance, but also technical systems such as heating type, lower costs on finishing layers of floors, furnishing etc. The paper presents changes in energy performance of the building envelope and its impact on transmission and ventilation heat losses, as well as the energy needs for heating.