This paper is focused on the design of a modular preassembled timber panel for the retrofit of pi... more This paper is focused on the design of a modular preassembled timber panel for the retrofit of pitched roofs. There are several benefits in substituting the existing roofs with preassembled timber modular panels: an optimization of the duration of the on-site work during the construction phase, a lower cost of on-site installation, a better control of the hygrometric performance of the elements, and, generally, a better quality of the built asset. The main objective of the work is to develop a solution which contains a high percentage of recycled materials and can be easily produced and assembled by non-skilled workers of social cooperatives. Appropriate studies of the technological details, as well as structural and economic analyses were carried out in order to optimize the manufacturing process and the onsite installation. Finally, in order to measure the affordability of the developed solution a multi-storey residential building located near Milan was considered as case study
The refurbishment and energy retrofitting of residential building stock is a crucial issue in the... more The refurbishment and energy retrofitting of residential building stock is a crucial issue in the construction sector. In the next years, more than 60% of existing buildings could be interested by major retrofitting measures as they were built before the issuing of any Italian energy regulations. Most of these buildings need not only measures to improve the energy-efficiency standards but also a wider refurbishment program to improve the spatial quality and the architectural features. This paper shows the output of a research work aimed at the implementation of a design tool supporting decision-makers during the evaluation of different design strategies. This tool is the result of an integrated approach considering: the performances of building envelope before and after refurbishment; the environmental impact related to the use of building materials in the different retrofitting strategies; the effects on occupants’ comfort; the added value in terms of extension of living area and o...
The increase of energy costs will justify in the next future major investments on the refurbishme... more The increase of energy costs will justify in the next future major investments on the refurbishment of existing building stock. Most of buildings built after the Second World War in Italy need cost-effective refurbishment measures considering both energy efficiency and improvement of architectural features. The paper shows the results of a research project carried out at Politecnico di Milano aiming at the definition of a simple and useful design tool supporting decision makers. It points out different options and levels for refurbishment, in terms of type, value and quality. Beginning from the observation of transformation processes in the northern region, different strategies of refurbishment are considered adopting traditional or new technologies and low environmental impact materials. Holistic design issues supported the analysis of existing buildings, addressing architectural, technical and morphological characteristics. Reversible, light and flexible criteria pervade the ident...
The climate crisis is urging us to act fast. Buildings are a key leverage point to reduce greenho... more The climate crisis is urging us to act fast. Buildings are a key leverage point to reduce greenhouse gas (GHG) emissions, but the embodied emissions related with their construction remain often the hidden challenge of any ambitious policy. Considering that a complete material substitution is not possible, we explore in this paper a material GHG compensation where fast-growing bio-based insulation materials are used to compensate building elements that necessarily release GHG. Looking for analogies with other human activities, different material diets as well as different building typologies are modelled to assess the consequences in term of bio-based insulation requirement to reach climate-neutrality. The material diets are defined according to the gradual use of herbaceous materials, from the insulation up to the structural level: omnivorous, vegetarian and vegan. Our results show the relationship in terms of volume between the climate intensive materials and the climate-negative o...
El artículo tiene por objetivo principal analizar el método HBIM como herramienta necesaria en la... more El artículo tiene por objetivo principal analizar el método HBIM como herramienta necesaria en la redacción de una propuesta de intervención para la protección y el reuso de edificios de alto valor histórico y arquitectónico (Bastem Cekmis 2021). A través de un caso estudio desarrollado sobre la antigua fábrica de mayólicas La Ceramo de Valencia se han analizado las potencialidades del HBIM en términos de recopilación y protección de informaciones y participación pública al proceso de diseño. Como resultados se ha podido verificar como el HBIM permita mejorar la calidad de las intervenciones en los edificios de propiedad de la Administración Pública en línea con los retos de desarrollo sostenible de la Agenda 2030 de la ONU, al poder anticiparse a los comportamientos y prevenir posibles riesgos.
The climate crisis is urging us to act fast. Buildings are a key leverage point to reduce greenho... more The climate crisis is urging us to act fast. Buildings are a key leverage point to reduce greenhouse gas (GHG) emissions, but the embodied emissions related with their construction remain often the hidden challenge of any ambitious policy. Since a complete material substitution is not possible, we explore in this paper a material greenhouse gas (GHG) compensation where fast growing bio-based insulation materials are used to compensate building elements which necessarily release GHG. Different material diets as well as different building typologies are modelled to assess the consequences in term of bio-based insulation requirement to reach climate-neutrality. Our results show that it is possible to build climate-neutral buildings with sufficient energy performance to fulfil current standards and with building components thickness within the range of current construction practices. This paper evidences that it is technically feasible and that climate-neutrality in construction sector ...
This paper is focused on the design of a modular preassembled timber panel for the retrofit of pi... more This paper is focused on the design of a modular preassembled timber panel for the retrofit of pitched roofs. There are several benefits in substituting the existing roofs with preassembled timber modular panels: an optimization of the duration of the on-site work during the construction phase, a lower cost of on-site installation, a better control of the hygrometric performance of the elements, and, generally, a better quality of the built asset. The main objective of the work is to develop a solution which contains a high percentage of recycled materials and can be easily produced and assembled by non-skilled workers of social cooperatives. Appropriate studies of the technological details, as well as structural and economic analyses were carried out in order to optimize the manufacturing process and the onsite installation. Finally, in order to measure the affordability of the developed solution a multi-storey residential building located near Milan was considered as case study
The refurbishment and energy retrofitting of residential building stock is a crucial issue in the... more The refurbishment and energy retrofitting of residential building stock is a crucial issue in the construction sector. In the next years, more than 60% of existing buildings could be interested by major retrofitting measures as they were built before the issuing of any Italian energy regulations. Most of these buildings need not only measures to improve the energy-efficiency standards but also a wider refurbishment program to improve the spatial quality and the architectural features. This paper shows the output of a research work aimed at the implementation of a design tool supporting decision-makers during the evaluation of different design strategies. This tool is the result of an integrated approach considering: the performances of building envelope before and after refurbishment; the environmental impact related to the use of building materials in the different retrofitting strategies; the effects on occupants’ comfort; the added value in terms of extension of living area and o...
The increase of energy costs will justify in the next future major investments on the refurbishme... more The increase of energy costs will justify in the next future major investments on the refurbishment of existing building stock. Most of buildings built after the Second World War in Italy need cost-effective refurbishment measures considering both energy efficiency and improvement of architectural features. The paper shows the results of a research project carried out at Politecnico di Milano aiming at the definition of a simple and useful design tool supporting decision makers. It points out different options and levels for refurbishment, in terms of type, value and quality. Beginning from the observation of transformation processes in the northern region, different strategies of refurbishment are considered adopting traditional or new technologies and low environmental impact materials. Holistic design issues supported the analysis of existing buildings, addressing architectural, technical and morphological characteristics. Reversible, light and flexible criteria pervade the ident...
The climate crisis is urging us to act fast. Buildings are a key leverage point to reduce greenho... more The climate crisis is urging us to act fast. Buildings are a key leverage point to reduce greenhouse gas (GHG) emissions, but the embodied emissions related with their construction remain often the hidden challenge of any ambitious policy. Considering that a complete material substitution is not possible, we explore in this paper a material GHG compensation where fast-growing bio-based insulation materials are used to compensate building elements that necessarily release GHG. Looking for analogies with other human activities, different material diets as well as different building typologies are modelled to assess the consequences in term of bio-based insulation requirement to reach climate-neutrality. The material diets are defined according to the gradual use of herbaceous materials, from the insulation up to the structural level: omnivorous, vegetarian and vegan. Our results show the relationship in terms of volume between the climate intensive materials and the climate-negative o...
El artículo tiene por objetivo principal analizar el método HBIM como herramienta necesaria en la... more El artículo tiene por objetivo principal analizar el método HBIM como herramienta necesaria en la redacción de una propuesta de intervención para la protección y el reuso de edificios de alto valor histórico y arquitectónico (Bastem Cekmis 2021). A través de un caso estudio desarrollado sobre la antigua fábrica de mayólicas La Ceramo de Valencia se han analizado las potencialidades del HBIM en términos de recopilación y protección de informaciones y participación pública al proceso de diseño. Como resultados se ha podido verificar como el HBIM permita mejorar la calidad de las intervenciones en los edificios de propiedad de la Administración Pública en línea con los retos de desarrollo sostenible de la Agenda 2030 de la ONU, al poder anticiparse a los comportamientos y prevenir posibles riesgos.
The climate crisis is urging us to act fast. Buildings are a key leverage point to reduce greenho... more The climate crisis is urging us to act fast. Buildings are a key leverage point to reduce greenhouse gas (GHG) emissions, but the embodied emissions related with their construction remain often the hidden challenge of any ambitious policy. Since a complete material substitution is not possible, we explore in this paper a material greenhouse gas (GHG) compensation where fast growing bio-based insulation materials are used to compensate building elements which necessarily release GHG. Different material diets as well as different building typologies are modelled to assess the consequences in term of bio-based insulation requirement to reach climate-neutrality. Our results show that it is possible to build climate-neutral buildings with sufficient energy performance to fulfil current standards and with building components thickness within the range of current construction practices. This paper evidences that it is technically feasible and that climate-neutrality in construction sector ...
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Papers by Laura Malighetti