State-of-the-art analysis of the environmental benefits of green roofs

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Umberto Berardi
  • AmirHosein GhaffarianHoseini
  • Ali GhaffarianHoseini

Detail(s)

Original languageEnglish
Pages (from-to)411-428
Number of pages18
Journal / PublicationApplied Energy
Volume115
Online published7 Dec 2013
Publication statusPublished - 15 Feb 2014
Externally publishedYes

Abstract

Green roofs have been proposed for sustainable buildings in many countries with different climatic conditions. A state-of-the-art review of green roofs emphasizing current implementations, technologies, and benefits is presented in this paper. Technical and construction aspects of green roofs are used to classify different systems. Environmental benefits are then discussed mainly by examining measured performances. By reviewing the benefits related to the reduction of building energy consumption, mitigation of urban heat island effect, improvement of air pollution, water management, increase of sound insulation, and ecological preservation, this paper shows how green roofs may contribute to more sustainable buildings and cities. However, an efficient integration of green roofs needs to take into account both the specific climatic conditions and the characteristics of the buildings. Economic considerations related to the life-cycle cost of green roofs are presented together with policies promoting green roofs worldwide. Findings indicate the undeniable environmental benefits of green roofs and their economic feasibility. Likewise, new policies for promoting green roofs show the necessity for incentivizing programs. Future research lines are recommended and the necessity of cross-disciplinary studies is stressed.

Research Area(s)

  • Green roofs, Sustainable design, Low-energy buildings, Environmental benefits, URBAN HEAT-ISLAND, LIFE-CYCLE ASSESSMENT, THERMAL PERFORMANCE, ENERGY PERFORMANCE, VEGETATION DEVELOPMENT, MEDITERRANEAN CLIMATE, STORMWATER RETENTION, MEDIA DEPTH, HONG-KONG, BUILDINGS

Citation Format(s)

State-of-the-art analysis of the environmental benefits of green roofs. / Berardi, Umberto; GhaffarianHoseini, AmirHosein; GhaffarianHoseini, Ali.

In: Applied Energy, Vol. 115, 15.02.2014, p. 411-428.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review