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Experimental investigation of summer thermal performance of the green roof system with mineral wool substrate

Authorized Users Only
2022
Authors
Kostadinović, Danka
Jovanović, Marina
Bakić, Vukman
Stepanić, Nenad
Todorović, Maja
Article (Published version)
Metadata
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Abstract
Green roof systems have become an important part in creating sustainable cities. They can provide a wide range of economic, environmental, and social benefits. The goal of this research was to quantify the thermal performance improvements from a green roof with mineral wool substrate installed on a school building in a humid subtropical climate. In-situ measurements during a summer period included heat fluxes through the green and reference roof, vertical temperature profile through both roofs, the local air temperature above roofs, and local meteorological parameters. Furthermore, the summer thermal performance of green and reference roof and the green roof cooling effect were evaluated concerning meteorological parameters using the Pearson correlation analysis. The results indicate that the green roof layers have improved thermal performance of the roof with respect to reduced conductive heat flow by 57% and delayed heat transfer. The maximum and averaged reference roof to green roof... outdoor surface temperature difference was 27.5 °C and 5.5 °C, respectively. It was found that ambient temperature and relative humidity have a dominant role on the thermal performance of the green and reference roof, while solar radiation and ambient temperature present the key meteorological determinants of the green roof cooling effect.

Keywords:
Cooling effect / Green roof / Heat flux / Mineral wool / Pearson correlation / Thermal performance
Source:
Building and Environment, 2022, 217, 109061-
Funding / projects:
  • Ministry of Education, Science and Technological Development of the Republic of Serbia

DOI: 10.1016/j.buildenv.2022.109061

ISSN: 0360-1323

Scopus: 2-s2.0-85127731001
[ Google Scholar ]
URI
https://vinar.vin.bg.ac.rs/handle/123456789/10231
Collections
  • Radovi istraživača
Institution/Community
Vinča
TY  - JOUR
AU  - Kostadinović, Danka
AU  - Jovanović, Marina
AU  - Bakić, Vukman
AU  - Stepanić, Nenad
AU  - Todorović, Maja
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10231
AB  - Green roof systems have become an important part in creating sustainable cities. They can provide a wide range of economic, environmental, and social benefits. The goal of this research was to quantify the thermal performance improvements from a green roof with mineral wool substrate installed on a school building in a humid subtropical climate. In-situ measurements during a summer period included heat fluxes through the green and reference roof, vertical temperature profile through both roofs, the local air temperature above roofs, and local meteorological parameters. Furthermore, the summer thermal performance of green and reference roof and the green roof cooling effect were evaluated concerning meteorological parameters using the Pearson correlation analysis. The results indicate that the green roof layers have improved thermal performance of the roof with respect to reduced conductive heat flow by 57% and delayed heat transfer. The maximum and averaged reference roof to green roof outdoor surface temperature difference was 27.5 °C and 5.5 °C, respectively. It was found that ambient temperature and relative humidity have a dominant role on the thermal performance of the green and reference roof, while solar radiation and ambient temperature present the key meteorological determinants of the green roof cooling effect.
T2  - Building and Environment
T1  - Experimental investigation of summer thermal performance of the green roof system with mineral wool substrate
VL  - 217
SP  - 109061
DO  - 10.1016/j.buildenv.2022.109061
ER  - 
@article{
author = "Kostadinović, Danka and Jovanović, Marina and Bakić, Vukman and Stepanić, Nenad and Todorović, Maja",
year = "2022",
abstract = "Green roof systems have become an important part in creating sustainable cities. They can provide a wide range of economic, environmental, and social benefits. The goal of this research was to quantify the thermal performance improvements from a green roof with mineral wool substrate installed on a school building in a humid subtropical climate. In-situ measurements during a summer period included heat fluxes through the green and reference roof, vertical temperature profile through both roofs, the local air temperature above roofs, and local meteorological parameters. Furthermore, the summer thermal performance of green and reference roof and the green roof cooling effect were evaluated concerning meteorological parameters using the Pearson correlation analysis. The results indicate that the green roof layers have improved thermal performance of the roof with respect to reduced conductive heat flow by 57% and delayed heat transfer. The maximum and averaged reference roof to green roof outdoor surface temperature difference was 27.5 °C and 5.5 °C, respectively. It was found that ambient temperature and relative humidity have a dominant role on the thermal performance of the green and reference roof, while solar radiation and ambient temperature present the key meteorological determinants of the green roof cooling effect.",
journal = "Building and Environment",
title = "Experimental investigation of summer thermal performance of the green roof system with mineral wool substrate",
volume = "217",
pages = "109061",
doi = "10.1016/j.buildenv.2022.109061"
}
Kostadinović, D., Jovanović, M., Bakić, V., Stepanić, N.,& Todorović, M.. (2022). Experimental investigation of summer thermal performance of the green roof system with mineral wool substrate. in Building and Environment, 217, 109061.
https://doi.org/10.1016/j.buildenv.2022.109061
Kostadinović D, Jovanović M, Bakić V, Stepanić N, Todorović M. Experimental investigation of summer thermal performance of the green roof system with mineral wool substrate. in Building and Environment. 2022;217:109061.
doi:10.1016/j.buildenv.2022.109061 .
Kostadinović, Danka, Jovanović, Marina, Bakić, Vukman, Stepanić, Nenad, Todorović, Maja, "Experimental investigation of summer thermal performance of the green roof system with mineral wool substrate" in Building and Environment, 217 (2022):109061,
https://doi.org/10.1016/j.buildenv.2022.109061 . .

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