The Experts below are selected from a list of 14028 Experts worldwide ranked by ideXlab platform
Luisa F. Cabeza - One of the best experts on this subject based on the ideXlab platform.
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Environmental performance of recycled rubber as Drainage Layer in extensive green roofs. A comparative Life Cycle Assessment
Building and Environment, 2014Co-Authors: Lídia Rincón, Gabriel Pérez, Julià Coma, Albert Castell, Dieter Boer, Luisa F. CabezaAbstract:Using recycled rubber crumbs as Drainage Layer in extensive green roofs have high potential to reduce the heating and cooling loads in buildings over traditional materials used as Drainage Layer, such as pozzolana gravel. However, the environmental impact due to the life cycle should be analyzed to assess its environmental benefit. This paper evaluates the environmental performance of green roofs in which the Drainage Layer is made of rubber crumbs, a recycled material the use of which is still experimental for this purpose. In this paper Life Cycle Assessment (LCA) is applied to compare the environmental impact of four constructive systems, two extensive green roofs without insulation Layer and with different Drainage materials, e a recycled material, rubber crumbs, and a conventional one, pozzolana gravel -, in front of two conventional flat roofs, with and without thermal insulation (polyurethane), built in an experimental set-up consisting of four monitored house-like cubicles, located in Mediterranean continental climate (Lleida, Spain). The LCA considered the production, construction, operational, and disposal phases of the roofs, according to UNE-EN 15643-2. The operational phase was carried out using data measured in the experimental set-up, considering heating and cooling energy consumptions in the winter and summer period, respectively.
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Use of rubber crumbs as Drainage Layer in experimental green roofs
Building and Environment, 2012Co-Authors: Anna Vila, Gabriel Pérez, Cristian Solé, Ana Inés Fernández, Luisa F. CabezaAbstract:Abstract Green roofs have become a sustainable construction building system that offers interesting environmental advantages over traditional roofing solutions. However green roofs design is still based on conventional materials. This article begins a research which considers both the study of the functional benefits of green roofs but also the goodness of their own construction. Specifically in this paper the possibility of using rubber crumbs as Drainage Layer in green roofs instead of the porous stone materials currently used in some commercial solutions (such as expanded clay, pumice, natural puzolana, etc) is suggested. This solution would reduce the consumption of these natural materials, which also require large amounts of energy in their transformation process. Moreover it would provide a solution to the problem of waste tires. Since the purpose of the Drainage Layer is the optimum balance between air and water in the green roof system, first the ability for draining of rubber crumbs was studied and was compared with that offered by stone materials. The new solution using rubber crumbs is also studied, with experimental trays, to test if it would keep the same insulation properties that the green roof with stone materials. Early results obtained in the experimental trays show that rubber crumbs are a good substitute for stone materials used as Drainage Layer.
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Use of rubber crumbs as Drainage Layer in green roofs as potential energy improvement material
Applied Energy, 2012Co-Authors: Gabriel Pérez, Anna Vila, Cristian Solé, Lídia Rincón, Luisa F. CabezaAbstract:Today, green roofs are a building system which provides interesting benefits over traditional roof solutions. The most important advantages are the reduction of surface runoff in cities, improvement of the urban climate, biodiversity support, improvement of the durability of roofing materials, and, especially, energy savings. This paper has the aim of studying the performance of green roofs as a passive system for energy savings, within a wider objective of seeking constructive solutions suitable for sustainable and environmentally friendly architecture. This idea is tested at an experimental installation available at the University of Lleida, with several cubicles testing the energy performance of different construction solutions. This work raises the possibility of using recycled rubber from tires as a Drainage Layer in green roofs, substituting the porous stone materials currently used (such as expanded clay, expanded shale, pumice, and natural puzolana). This solution would reduce the consumption of these natural materials, which also require large amounts of energy in its transformation process to obtain their properties. Moreover it would provide a solution to the problem of waste rubber from the tires, known as rubber crumbs. Since the purpose of the Drainage Layer is the optimum balance between air and water in the green roof system, first the ability for draining of recycled rubber granules was studied and was compared with the offered by stone materials. The new solution using rubber crumbs is also studied to test if it would keep the same insulating properties that the green roof with stone materials presented in previous studies. Early results show that this extensive green roof system can be a good passive energy savings tool in Continental Mediterranean climate in summer, and that rubber crumbs can be an interesting substitute for stone materials used as Drainage Layer in this type of green roofs.
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Green roofs as passive system for energy savings when using rubber crumbs as Drainage Layer
Energy Procedia, 2012Co-Authors: Gabriel Pérez, Cristian Solé, Julià Coma, Albert Castell, Luisa F. CabezaAbstract:Abstract This study is another step of a long-term work in order to study the thermal behaviour of extensive green roofs in dry Mediterranean Continental climate. In this paper there are two main goals. On one hand, the possibility of using rubber crumbs as a Drainage Layer in green roofs, substituting the porous stone materials used in some commercial solutions is studied. On the other hand, new data concerning the use of green roofs as passive system for energy savings in dry Mediterranean Continental climate is provided. First results correspond to summer 2011, when the roof was just planted and the irrigation system installed. The vegetation cover in those days was about 20% of the roof surface. With an internal set-point of 24 °C first results show an improvement in energy consumption with respect to the reference cubicle. New data will be recorded during 2012 when the vegetation has developed and it is expected better results than in 2011.
Gabriel Pérez - One of the best experts on this subject based on the ideXlab platform.
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Environmental performance of recycled rubber as Drainage Layer in extensive green roofs. A comparative Life Cycle Assessment
Building and Environment, 2014Co-Authors: Lídia Rincón, Gabriel Pérez, Julià Coma, Albert Castell, Dieter Boer, Luisa F. CabezaAbstract:Using recycled rubber crumbs as Drainage Layer in extensive green roofs have high potential to reduce the heating and cooling loads in buildings over traditional materials used as Drainage Layer, such as pozzolana gravel. However, the environmental impact due to the life cycle should be analyzed to assess its environmental benefit. This paper evaluates the environmental performance of green roofs in which the Drainage Layer is made of rubber crumbs, a recycled material the use of which is still experimental for this purpose. In this paper Life Cycle Assessment (LCA) is applied to compare the environmental impact of four constructive systems, two extensive green roofs without insulation Layer and with different Drainage materials, e a recycled material, rubber crumbs, and a conventional one, pozzolana gravel -, in front of two conventional flat roofs, with and without thermal insulation (polyurethane), built in an experimental set-up consisting of four monitored house-like cubicles, located in Mediterranean continental climate (Lleida, Spain). The LCA considered the production, construction, operational, and disposal phases of the roofs, according to UNE-EN 15643-2. The operational phase was carried out using data measured in the experimental set-up, considering heating and cooling energy consumptions in the winter and summer period, respectively.
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Use of rubber crumbs as Drainage Layer in experimental green roofs
Building and Environment, 2012Co-Authors: Anna Vila, Gabriel Pérez, Cristian Solé, Ana Inés Fernández, Luisa F. CabezaAbstract:Abstract Green roofs have become a sustainable construction building system that offers interesting environmental advantages over traditional roofing solutions. However green roofs design is still based on conventional materials. This article begins a research which considers both the study of the functional benefits of green roofs but also the goodness of their own construction. Specifically in this paper the possibility of using rubber crumbs as Drainage Layer in green roofs instead of the porous stone materials currently used in some commercial solutions (such as expanded clay, pumice, natural puzolana, etc) is suggested. This solution would reduce the consumption of these natural materials, which also require large amounts of energy in their transformation process. Moreover it would provide a solution to the problem of waste tires. Since the purpose of the Drainage Layer is the optimum balance between air and water in the green roof system, first the ability for draining of rubber crumbs was studied and was compared with that offered by stone materials. The new solution using rubber crumbs is also studied, with experimental trays, to test if it would keep the same insulation properties that the green roof with stone materials. Early results obtained in the experimental trays show that rubber crumbs are a good substitute for stone materials used as Drainage Layer.
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Use of rubber crumbs as Drainage Layer in green roofs as potential energy improvement material
Applied Energy, 2012Co-Authors: Gabriel Pérez, Anna Vila, Cristian Solé, Lídia Rincón, Luisa F. CabezaAbstract:Today, green roofs are a building system which provides interesting benefits over traditional roof solutions. The most important advantages are the reduction of surface runoff in cities, improvement of the urban climate, biodiversity support, improvement of the durability of roofing materials, and, especially, energy savings. This paper has the aim of studying the performance of green roofs as a passive system for energy savings, within a wider objective of seeking constructive solutions suitable for sustainable and environmentally friendly architecture. This idea is tested at an experimental installation available at the University of Lleida, with several cubicles testing the energy performance of different construction solutions. This work raises the possibility of using recycled rubber from tires as a Drainage Layer in green roofs, substituting the porous stone materials currently used (such as expanded clay, expanded shale, pumice, and natural puzolana). This solution would reduce the consumption of these natural materials, which also require large amounts of energy in its transformation process to obtain their properties. Moreover it would provide a solution to the problem of waste rubber from the tires, known as rubber crumbs. Since the purpose of the Drainage Layer is the optimum balance between air and water in the green roof system, first the ability for draining of recycled rubber granules was studied and was compared with the offered by stone materials. The new solution using rubber crumbs is also studied to test if it would keep the same insulating properties that the green roof with stone materials presented in previous studies. Early results show that this extensive green roof system can be a good passive energy savings tool in Continental Mediterranean climate in summer, and that rubber crumbs can be an interesting substitute for stone materials used as Drainage Layer in this type of green roofs.
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Green roofs as passive system for energy savings when using rubber crumbs as Drainage Layer
Energy Procedia, 2012Co-Authors: Gabriel Pérez, Cristian Solé, Julià Coma, Albert Castell, Luisa F. CabezaAbstract:Abstract This study is another step of a long-term work in order to study the thermal behaviour of extensive green roofs in dry Mediterranean Continental climate. In this paper there are two main goals. On one hand, the possibility of using rubber crumbs as a Drainage Layer in green roofs, substituting the porous stone materials used in some commercial solutions is studied. On the other hand, new data concerning the use of green roofs as passive system for energy savings in dry Mediterranean Continental climate is provided. First results correspond to summer 2011, when the roof was just planted and the irrigation system installed. The vegetation cover in those days was about 20% of the roof surface. With an internal set-point of 24 °C first results show an improvement in energy consumption with respect to the reference cubicle. New data will be recorded during 2012 when the vegetation has developed and it is expected better results than in 2011.
Cristian Solé - One of the best experts on this subject based on the ideXlab platform.
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Use of rubber crumbs as Drainage Layer in experimental green roofs
Building and Environment, 2012Co-Authors: Anna Vila, Gabriel Pérez, Cristian Solé, Ana Inés Fernández, Luisa F. CabezaAbstract:Abstract Green roofs have become a sustainable construction building system that offers interesting environmental advantages over traditional roofing solutions. However green roofs design is still based on conventional materials. This article begins a research which considers both the study of the functional benefits of green roofs but also the goodness of their own construction. Specifically in this paper the possibility of using rubber crumbs as Drainage Layer in green roofs instead of the porous stone materials currently used in some commercial solutions (such as expanded clay, pumice, natural puzolana, etc) is suggested. This solution would reduce the consumption of these natural materials, which also require large amounts of energy in their transformation process. Moreover it would provide a solution to the problem of waste tires. Since the purpose of the Drainage Layer is the optimum balance between air and water in the green roof system, first the ability for draining of rubber crumbs was studied and was compared with that offered by stone materials. The new solution using rubber crumbs is also studied, with experimental trays, to test if it would keep the same insulation properties that the green roof with stone materials. Early results obtained in the experimental trays show that rubber crumbs are a good substitute for stone materials used as Drainage Layer.
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Use of rubber crumbs as Drainage Layer in green roofs as potential energy improvement material
Applied Energy, 2012Co-Authors: Gabriel Pérez, Anna Vila, Cristian Solé, Lídia Rincón, Luisa F. CabezaAbstract:Today, green roofs are a building system which provides interesting benefits over traditional roof solutions. The most important advantages are the reduction of surface runoff in cities, improvement of the urban climate, biodiversity support, improvement of the durability of roofing materials, and, especially, energy savings. This paper has the aim of studying the performance of green roofs as a passive system for energy savings, within a wider objective of seeking constructive solutions suitable for sustainable and environmentally friendly architecture. This idea is tested at an experimental installation available at the University of Lleida, with several cubicles testing the energy performance of different construction solutions. This work raises the possibility of using recycled rubber from tires as a Drainage Layer in green roofs, substituting the porous stone materials currently used (such as expanded clay, expanded shale, pumice, and natural puzolana). This solution would reduce the consumption of these natural materials, which also require large amounts of energy in its transformation process to obtain their properties. Moreover it would provide a solution to the problem of waste rubber from the tires, known as rubber crumbs. Since the purpose of the Drainage Layer is the optimum balance between air and water in the green roof system, first the ability for draining of recycled rubber granules was studied and was compared with the offered by stone materials. The new solution using rubber crumbs is also studied to test if it would keep the same insulating properties that the green roof with stone materials presented in previous studies. Early results show that this extensive green roof system can be a good passive energy savings tool in Continental Mediterranean climate in summer, and that rubber crumbs can be an interesting substitute for stone materials used as Drainage Layer in this type of green roofs.
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Green roofs as passive system for energy savings when using rubber crumbs as Drainage Layer
Energy Procedia, 2012Co-Authors: Gabriel Pérez, Cristian Solé, Julià Coma, Albert Castell, Luisa F. CabezaAbstract:Abstract This study is another step of a long-term work in order to study the thermal behaviour of extensive green roofs in dry Mediterranean Continental climate. In this paper there are two main goals. On one hand, the possibility of using rubber crumbs as a Drainage Layer in green roofs, substituting the porous stone materials used in some commercial solutions is studied. On the other hand, new data concerning the use of green roofs as passive system for energy savings in dry Mediterranean Continental climate is provided. First results correspond to summer 2011, when the roof was just planted and the irrigation system installed. The vegetation cover in those days was about 20% of the roof surface. With an internal set-point of 24 °C first results show an improvement in energy consumption with respect to the reference cubicle. New data will be recorded during 2012 when the vegetation has developed and it is expected better results than in 2011.
Mirka Mobilia - One of the best experts on this subject based on the ideXlab platform.
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Climate, Soil Moisture and Drainage Layer Properties Impact on Green Roofs in a Mediterranean Environment
Frontiers in Water-Energy-Nexus—Nature-Based Solutions Advanced Technologies and Best Practices for Environmental Sustainability, 2020Co-Authors: Mirka Mobilia, Roberta D’ambrosio, Antonia LongobardiAbstract:Analysis of event scale hydrological performances of green roofs in a Mediterranean environment. Different green roofs constructive technologies are investigated. Observed soil water contents help describe the impact of cumulative rainfall depth and duration on green roofs hydrological performances.
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Predicting Stormwater Retention Capacity of Green Roofs: An Experimental Study of the Roles of Climate, Substrate Soil Moisture, and Drainage Layer Properties
Sustainability, 2019Co-Authors: Antonia Longobardi, Roberta D’ambrosio, Mirka MobiliaAbstract:Due to the ever-increasing degree of urbanization, blue and green infrastructures are becoming important tools for achieving stormwater management sustainability in urban areas. Concerning green roofs, although scientists have investigated their behaviors under different climates and building practices, their hydrological performance is still a thought-provoking field of research. An event scale analysis based on thirty-five rainfall–runoff events recorded at a new set of experimental green roofs located in Southern Italy has been performed with the aim of identifying the relative roles of climate, substrate moisture conditions, and building practices on retention properties. The retention coefficient showed a wide range of variability, which could not be captured by neither simple nor multiple linear regression analysis, relating the latter to rainfall characteristics and substrate soil water content. Significant improvements in the prediction of the retention coefficient were obtained by a preliminary identification of groups of rainfall–runoff events, based on substrate soil water content thresholds. Within each group, a primary role is played by rainfall. At the experimental site, building practices, particularly those concerning the Drainage Layer properties, appeared to affect the retention properties only for specific event types.
Anna Vila - One of the best experts on this subject based on the ideXlab platform.
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Use of rubber crumbs as Drainage Layer in experimental green roofs
Building and Environment, 2012Co-Authors: Anna Vila, Gabriel Pérez, Cristian Solé, Ana Inés Fernández, Luisa F. CabezaAbstract:Abstract Green roofs have become a sustainable construction building system that offers interesting environmental advantages over traditional roofing solutions. However green roofs design is still based on conventional materials. This article begins a research which considers both the study of the functional benefits of green roofs but also the goodness of their own construction. Specifically in this paper the possibility of using rubber crumbs as Drainage Layer in green roofs instead of the porous stone materials currently used in some commercial solutions (such as expanded clay, pumice, natural puzolana, etc) is suggested. This solution would reduce the consumption of these natural materials, which also require large amounts of energy in their transformation process. Moreover it would provide a solution to the problem of waste tires. Since the purpose of the Drainage Layer is the optimum balance between air and water in the green roof system, first the ability for draining of rubber crumbs was studied and was compared with that offered by stone materials. The new solution using rubber crumbs is also studied, with experimental trays, to test if it would keep the same insulation properties that the green roof with stone materials. Early results obtained in the experimental trays show that rubber crumbs are a good substitute for stone materials used as Drainage Layer.
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Use of rubber crumbs as Drainage Layer in green roofs as potential energy improvement material
Applied Energy, 2012Co-Authors: Gabriel Pérez, Anna Vila, Cristian Solé, Lídia Rincón, Luisa F. CabezaAbstract:Today, green roofs are a building system which provides interesting benefits over traditional roof solutions. The most important advantages are the reduction of surface runoff in cities, improvement of the urban climate, biodiversity support, improvement of the durability of roofing materials, and, especially, energy savings. This paper has the aim of studying the performance of green roofs as a passive system for energy savings, within a wider objective of seeking constructive solutions suitable for sustainable and environmentally friendly architecture. This idea is tested at an experimental installation available at the University of Lleida, with several cubicles testing the energy performance of different construction solutions. This work raises the possibility of using recycled rubber from tires as a Drainage Layer in green roofs, substituting the porous stone materials currently used (such as expanded clay, expanded shale, pumice, and natural puzolana). This solution would reduce the consumption of these natural materials, which also require large amounts of energy in its transformation process to obtain their properties. Moreover it would provide a solution to the problem of waste rubber from the tires, known as rubber crumbs. Since the purpose of the Drainage Layer is the optimum balance between air and water in the green roof system, first the ability for draining of recycled rubber granules was studied and was compared with the offered by stone materials. The new solution using rubber crumbs is also studied to test if it would keep the same insulating properties that the green roof with stone materials presented in previous studies. Early results show that this extensive green roof system can be a good passive energy savings tool in Continental Mediterranean climate in summer, and that rubber crumbs can be an interesting substitute for stone materials used as Drainage Layer in this type of green roofs.
