Long term experimental analysis of thermal performance of extensive green roofs with different substrates in Mediterranean climate

Porcaro, M.; Adana, Manuel Ruiz de; Comino, Francisco; Peña, Adolfo; Martín-Consuegra, E.; Vanwalleghem, Tom

doi:10.1016/j.enbuild.2019.05.041

Cited by 29 publications

(7 citation statements)

References 32 publications

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“…The reported literature indicates that green roofs represent very promising building components, also in the Mediterranean context, as demonstrates the incremental number of studies and analyses carried out in recent years concerning both the experimental [44,54] and the simulating approach [47,55].…”

Section: Introductionmentioning

confidence: 83%

“…Taking into account the studies reported above, it is evident how green roofs can have a strong impact in attenuating the average radiant temperature on building roofs [44,59,60]. This capability of acting as thermal insulation positively influences the indoor comfort conditions for the occupants of the rooms sited under the roof [27,45,61,62]: this aspect has always been critical in the design phase of a building envelope.…”

Section: Introductionmentioning

confidence: 97%

“…In addition to experimental studies [44][45][46], the effect on the built environment of vegetated roofs in diverse climates has also been investigated from analytical [47][48][49] and modelling points of view [50][51][52] over the years. In particular, the relevant parameters for energy modelling of green roofs have been explored in the literature, particularly referring to the role played by leaves and solar radiation in the thermal exchanges between vegetated layers and the surrounding environment [53].…”

Section: Introductionmentioning

confidence: 99%

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Green Roofs as Effective Tools for Improving the Indoor Comfort Levels of Buildings—An Application to a Case Study in Sicily

et al. 2020

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In the line of pursuing better energy efficiency in human activities that would result in a more sustainable utilization of resources, the building sector plays a relevant role, being responsible for almost 40% of both energy consumption and the release of pollutant substances in the atmosphere. For this purpose, techniques aimed at improving the energy performances of buildings’ envelopes are of paramount importance. Among them, green roofs are becoming increasingly popular due to their capability of reducing the (electric) energy needs for (summer) climatization of buildings, hence also positively affecting the indoor comfort levels for the occupants. Clearly, reliable tools for the modelling of these envelope components are needed, requiring the availability of suitable field data. Starting with the results of a case study designed to estimate how the adoption of green roofs on a Sicilian building could positively affect its energy performance, this paper shows the impact of this technology on indoor comfort and energy consumption, as well as on the reduction of direct and indirect CO2 emissions related to the climatization of the building. Specifically, the ceiling surface temperatures of some rooms located underneath six different types of green roofs were monitored. Subsequently, the obtained data were used as input for one of the most widely used simulation models, i.e., EnergyPlus, to evaluate the indoor comfort levels and the achievable energy demand savings of the building involved. From these field analyses, green roofs were shown to contribute to the mitigation of the indoor air temperatures, thus producing an improvement of the comfort conditions, especially in summer conditions, despite some worsening during transition periods seeming to arise.

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Section: Introductionmentioning

confidence: 83%

Section: Introductionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

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Green Roofs as Effective Tools for Improving the Indoor Comfort Levels of Buildings—An Application to a Case Study in Sicily

et al. 2020

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“…It has been stated that the most influential factors registered for such species planted are the relationship between air and water in the substrate and the interaction between green cover and substrate, respectively, for the seasons of summer and winter [46]. In investigating the impact of green roofs on the improvement of urban heat performance in the Mediterranean climate, the key parameters of investigation are that of: experimental site, air and surface temperature profiles, and various measurement points at the level of the modules chosen [57]. It is noteworthy that green roofs can play a decisive role in improving the thermal performance of the surrounding microclimate and energy performance of buildings, being a feasible intervention choice against urban heat island effect, not only for Mediterranean cities but also for other areas [57].…”

Section: Parameters Of Cost Reductionmentioning

confidence: 99%

“…In investigating the impact of green roofs on the improvement of urban heat performance in the Mediterranean climate, the key parameters of investigation are that of: experimental site, air and surface temperature profiles, and various measurement points at the level of the modules chosen [57]. It is noteworthy that green roofs can play a decisive role in improving the thermal performance of the surrounding microclimate and energy performance of buildings, being a feasible intervention choice against urban heat island effect, not only for Mediterranean cities but also for other areas [57]. In a wider context, it is stressed out that vegetal systems in facades can contribute to the reduction of the buildings' energy demand, the attenuation of the urban heat, and the filtration of pollutants present in the air.…”

Section: Parameters Of Cost Reductionmentioning

confidence: 99%

Investigating Thermal Performance of Residential Buildings in Marmari Region, South Evia, Greece

et al. 2020

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In recent decades, the steady increase of energy consumption from building construction and operations cause atmospheric pollution and significant financial burden, mainly due to the high costs imposed from energy production. This study examines ways under which modern designs of a building can be applied on construction and domestication while following conventional methods of construction, compared to a building that has been constructed and domesticated under bioclimatic architecture. Particularly, two buildings were investigated in terms of the energy consumption incurred, being built on the same seaside area and period of construction and at adjacent plots of the same distance from sea for ease of comparison. The first building (A1) was constructed under the principles of bioclimatic architecture, being also facilitated with green and smart technologies. The second building (A2) was constructed under conventional construction techniques. The energy efficiency of both buildings was calculated by the “TEE KENAK” software, while specific parameters were recorded. Energy classifications of both buildings were valued and a proposed scenario and interventions unveiled the energy classification upgrading from A2 to A1. Our analysis revealed, as also found in the literature, that during thermal energy oscillating conditions, corresponding relative humidity stresses were observed, indicating that the vapor pressure handling should be taken into account towards comfort. The preliminary incremental cost evaluation and comparison of A1 and A2 energy upgrading under the criterion of simple payback period were critically discussed.

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A State-of-the-Art Review on Green Roof Implementation

Rahim

Osman

Razali

et al. 2021

Lecture Notes in Civil Engineering

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Long term experimental analysis of thermal performance of extensive green roofs with different substrates in Mediterranean climate

Cited by 29 publications

References 32 publications

Green Roofs as Effective Tools for Improving the Indoor Comfort Levels of Buildings—An Application to a Case Study in Sicily

Green Roofs as Effective Tools for Improving the Indoor Comfort Levels of Buildings—An Application to a Case Study in Sicily

Investigating Thermal Performance of Residential Buildings in Marmari Region, South Evia, Greece

A State-of-the-Art Review on Green Roof Implementation

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