Life cycle assessment of buildings and city quarters comparing demolition and reconstruction with refurbishment

Weiler, Verena; Harter, Hannes; Eicker, Ursula

doi:10.1016/j.enbuild.2016.11.004

Cited by 64 publications

(31 citation statements)

References 16 publications

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“…Six papers covered the weight of insulation materials within a whole building life cycle impact [12,[27][28][29][30][31]. These show a wide range of contribution percentages, intimately related to the building type and construction technology, the insulation material used and the types of environmental indicators covered.…”

Section: Research Question 3: Weight Of Insulation Materials In Totalmentioning

confidence: 99%

“…Figure 4 shows that the share of insulation in the total energy demand of a building lies around 10% in low-energy single-family houses [27,29] and in multi-family buildings, when the end-of-life phase is disregarded. The share of insulation represents around 2% of the building life cycle impact in multi-family buildings [31]. [27,29].…”

Section: Research Question 3: Weight Of Insulation Materials In Totalmentioning

confidence: 99%

“…The second column shows the contribution range found by [12] considering a standard and a well-insulated building, excluding the building end-of-life phase (C). The third column indicates contribution extrapolated from [31] considering an existing building with no refurbishment, with medium refurbishment and with advanced refurbishment.…”

Section: Research Question 3: Weight Of Insulation Materials In Totalmentioning

confidence: 99%

“…A general conclusion that arose from the analysed sample of papers is that insulation materials, even though presenting a non-negligible embodied impact in low energy and passive buildings, highly contribute to lowering the buildings primary energy use and global warming potential throughout their life cycle, when compared to standard buildings with little or no insulation (as shown by [12,27,31]). These findings are in line with the review performed by Vilches et al [20], which states that insulation materials can reduce the overall building impact throughout its life cycle.…”

Section: Research Question 3: Weight Of Insulation Materials In Totalmentioning

confidence: 99%

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Strategies to Improve the Energy Performance of Buildings: A Review of Their Life Cycle Impact

et al. 2018

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Globally, the building sector is responsible for more than 40% of energy use and it contributes approximately 30% of the global Greenhouse Gas (GHG) emissions. This high contribution stimulates research and policies to reduce the operational energy use and related GHG emissions of buildings. However, the environmental impacts of buildings can extend wide beyond the operational phase, and the portion of impacts related to the embodied energy of the building becomes relatively more important in low energy buildings. Therefore, the goal of the research is gaining insights into the environmental impacts of various building strategies for energy efficiency requirements compared to the life cycle environmental impacts of the whole building. The goal is to detect and investigate existing trade-offs in current approaches and solutions proposed by the research community. A literature review is driven by six fundamental and specific research questions (RQs), and performed based on two main tasks: (i) selection of literature studies, and (ii) critical analysis of the selected studies in line with the RQs. A final sample of 59 papers and 178 case studies has been collected, and key criteria are systematically analysed in a matrix. The study reveals that the high heterogeneity of the case studies makes it difficult to compare these in a straightforward way, but it allows to provide an overview of current methodological challenges and research gaps. Furthermore, the most complete studies provide valuable insights in the environmental benefits of the identified energy performance strategies over the building life cycle, but also shows the risk of burden shifting if only operational energy use is focused on, or when a limited number of environmental impact categories are assessed.

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Section: Research Question 3: Weight Of Insulation Materials In Totalmentioning

confidence: 99%

Section: Research Question 3: Weight Of Insulation Materials In Totalmentioning

confidence: 99%

Section: Research Question 3: Weight Of Insulation Materials In Totalmentioning

confidence: 99%

Section: Research Question 3: Weight Of Insulation Materials In Totalmentioning

confidence: 99%

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Strategies to Improve the Energy Performance of Buildings: A Review of Their Life Cycle Impact

et al. 2018

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“…A holistic approach for calculating the life cycle of individual buildings is proposed in Ref . In particular, the material composition has to be determined first, therefore the values for the embodied energy, embodied greenhouse gases, energy needed, and greenhouse gases emitted during disposal of the different building components must be calculated.…”

Section: Interaction Of Building Simulation With Other Thermal‐energymentioning

confidence: 99%

Uses of dynamic simulation to predict thermal‐energy performance of buildings and districts: a review

Castaldo

Pisello

2017

WIREs Energy & Environment

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The design of sustainable constructions also resilient to climate change has become a challenging issue given the increasing greenhouse emissions rate imputable to the built environment in urban areas. In this context, dynamic simulation models represent a suitable tool to support the design from very preliminary phases, since they allow an accurate prediction of the constructions requirements, their environmental performance, and indoor comfort conditions for their occupants. Therefore, starting from specific inputs, that is, weather conditions, construction technologies, materials, energy systems, operation settings, occupancy, and so forth, it is possible to estimate the realistic building energy performance. Moreover, the calibration procedures allow making the model even more representative of the field conditions of a construction. Given the massive progress carried out by the scientific community during the last decades, this paper presents a comprehensive review of the different building dynamic simulation approaches and available tools. While previous review studies focused on single separated aspects of dynamic simulations approaches, that is, calibration methods, software, simulation of single building energy systems, the aim of the present review is to propose a more holistic approach by investigating the recent scientific progress in simulating realistic dense urban environments. In this view, the review focus bridges the gap between the simulation at single-building level and simulation at the increasingly important neighborhood scale by showing the multiple benefits deriving from using dynamic simulation tools at district level, for a more reliable investigation of building performance in their urban context, where more than 50% of the global population worldwide currently lives.

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Life Cycle Assessment for Modular Roof Systems of Large-Span Building

Alshamrani

2020

Lecture Notes in Civil Engineering

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Life cycle assessment of buildings and city quarters comparing demolition and reconstruction with refurbishment

Cited by 64 publications

References 16 publications

Strategies to Improve the Energy Performance of Buildings: A Review of Their Life Cycle Impact

Strategies to Improve the Energy Performance of Buildings: A Review of Their Life Cycle Impact

Uses of dynamic simulation to predict thermal‐energy performance of buildings and districts: a review

Life Cycle Assessment for Modular Roof Systems of Large-Span Building

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