On the Energy Performance of an Innovative Green Roof in the Mediterranean Climate

Luca Evangelisti, Claudia Guattari, Gianluca Grazieschi, Marta Roncone and Francesco Asdrubali
Additional contact information
Luca Evangelisti: Department of Engineering, Roma TRE University, Via Vito Volterra 62, 00146 Rome, Italy
Claudia Guattari: Department of Engineering, Roma TRE University, Via Vito Volterra 62, 00146 Rome, Italy
Gianluca Grazieschi: Department of Engineering, Roma TRE University, Via Vito Volterra 62, 00146 Rome, Italy
Marta Roncone: Department of Engineering, Roma TRE University, Via Vito Volterra 62, 00146 Rome, Italy
Francesco Asdrubali: Department of Engineering, Roma TRE University, Via Vito Volterra 62, 00146 Rome, Italy

Energies, 2020, vol. 13, issue 19, 1-18

Abstract: Green roofs have a thermal insulating effect known since ancient times. In the building sector, green roofs represent a sustainable passive solution to obtain energy savings, both during winter and summer. Moreover, they are a natural barrier against noise pollution, reducing sound reflections, and they contribute to clean air and biodiversity in urban areas. In this research, a roof-lawn system was studied through a long experimental campaign. Heat-flow meters, air and surface temperature sensors were used in two buildings characterized by different surrounding conditions, geometries and orientations. In both case studies, the thermal behaviors of the roof-lawn system were compared with the conventional roofs. In addition, a dynamic simulation model was created in order to quantify the effect of this green system on the heating and cooling energy demands. The roof-lawn showed a high thermal inertia, with no overheating during summer, and a high insulating capacity, involving energy savings during winter, and consequently better indoor thermal conditions.

Keywords: green roof; measurements; thermal behavior; monitoring; dynamic model (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

Downloads: (external link)
https://www.mdpi.com/1996-1073/13/19/5163/pdf (application/pdf)
https://www.mdpi.com/1996-1073/13/19/5163/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:13:y:2020:i:19:p:5163-:d:423478

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().