LCC and LCCO 2 analysis of green roofs in elementary schools with energy saving measures

Taehoon Hong, Jimin Kim, Choongwan Koo

Research output: Contribution to journalArticle

79 Citations (Scopus)


As the area of urban forests rapidly decrease in size, there is growing interest in green roofs as the only alternative to urban forests. This study aimed to evaluate economic and environmental effects of functional improvement in elementary school facilities by applying various improvement scenarios based on green roof systems (GRSs) with the combination of energy-saving measures (ESMs). A total of 16 possible improvement scenarios from the combination of GRSs and ESMs were developed, and energy modeling (Energy Plus ver. 6.0), based on the (i) characteristics of building, (ii) regional climate, and (iii) season, was performed. Using the energy modeling result, the amount of the CO 2 emission reduction by energy savings and the CO 2 absorption by GRSs' plants was calculated, and a life cycle cost analysis was conducted with the consideration of the life cycle CO 2 (LCCO 2). The results of this study can be used (i) to introduce the most appropriate ESMs for the specific facility when applying GRSs, (ii) to decide which location is proper to implement GRSs considering characteristics of regional climate, and (iii) to select energy- and cost-efficient elementary school when applying GRSs.

Original languageEnglish
Pages (from-to)229-239
Number of pages11
JournalEnergy and Buildings
Publication statusPublished - 2012 Feb 1

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Building and Construction
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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