1. Experimental Characterization of Green Roof Components.
- Author
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Ouldboukhitine, Salah-Eddine and Belarbi, Rafik
- Abstract
Green roofs are known for their beneficial aspects on the buildings energy consumption and the environment quality. However, the lack of precise knowledge of thermal, water, botanic characteristics is an obstacle to predict theirs efficiencies in the case of construction projects. In this study, three of the main physical properties of green roofs were experimentally investigated to determine some of the key green roof modeling parameters. First, the thermo-physical properties of green roofs were characterized by correlating the thermal conductivity of the substrate with the water content for different maximum water capacities. Also, the thermal resistance of green roof was evaluated in controlled weather conditions using a low speed wind tunnel. Next, the moisture storage was characterized using the dynamic vapor sorption technique to determine both of sorption and desorption isotherms as well as the moisture buffer capacity. Third, the microstructural properties of green roof substrate were characterized using mercury intrusion porosimetry to measure the porosity range of green roof substrate. The experimental results were used to estimate the parameters used as input data in the developed green roof model to evaluate the energy performance of a building. [ABSTRACT FROM AUTHOR]
- Published
- 2015
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