Extensive flat green roof on a public building

Cilj ovog diplomskog rada je upoznati se s ravnim zelenim krovovima, njihovim karakteristikama, razvitkom, mogućnostima primjene i tehnologijom izvođenja. Za provedbu energetskog, ekonomskog i ekološkog vrednovanja implementacije zelenog krova odabrana je postojeća zgrada javne namjene s ravnim krovom. Kao adekvatno rješenje predloženo je ekstenzivno ozelenjavanje krova. Ekstenzivni ravni zeleni krov je najjednostavniji primjer zelenog krova. Podrazumijeva sadnju niske i otporne vegetacije koja ne zahtijeva posebnu njegu. Na početku rada opisani su osnovni pojmovi vezani uz potrošnju energije u zgradarstvu, energetsku učinkovitost i energetsko certificiranje s naglaskom na zelene krovove. Također u prvom dijelu rada opisane su vrste zelenih krovova i njihove karakteristike, prednosti i nedostatci zelenih krovova te tehnologija izvođenja osnovnih slojeva i izvedbenih detalja ravnih zelenih krovova. U drugom dijelu rada prikazano je i analizirano postojeće stanje zgrade javne namjene s ravnim krovom te projektirano stanje nakon izvedbe ekstenzivnog ravnog zelenog krova. Na kraju rada izrađen je troškovnik izgradnje zelenog krova te je provedena analiza utjecaja troškova izgradnje zelenog krova na ukupne troškove objekta. Energetsko vrednovanje implementacije ekstenzivnog ravnog zelenog krova provedeno je izradom energetskih certifikata za postojeće stanje objekta i za stanje nakon izvedbe ekstenzivnog ravnog zelenog krova. Projektirano je i dvokrako čelično stubište koje osigurava pristup ravnom zelenom krovu.The aim of this thesis is to get acquainted with flat green roofs, their characteristics, development, application possibilities and construction technology. For the implementation of energy, economic and environmental evaluation of the implementation of the green roof, the existing public building with a flat roof was selected. Extensive roof greening has been proposed as an adequate solution. An extensive flat green roof is the simplest example of a green roof. It involves planting low and resistant vegetation that does not require special care. At the beginning of the thesis, the basic concepts related to energy consumption in buildings, energy efficiency and energy certification are described, with an emphasis on green roofs. Also in the first part of the thesis are described the types of green roofs and their characteristics, advantages and disadvantages of green roofs and the technology of performing the basic layers and performance details of flat green roofs. The second part presents and analyzes the existing condition of a public building with a flat roof and the projected condition after the construction of an extensive flat green roof. At the end, a cost estimate for the construction of a green roof was prepared and an analysis of the impact of the costs of building a green roof on the total costs of the building was performed. Energy evaluation of the implementation of the extensive flat green roof was carried out by preparing energy certificates for the existing condition of the building and for the situation after the construction of the extensive flat green roof. A double-legged steel staircase has also been designed to provide access to the flat green roof