Environmental impact assessment of building envelope components for low-rise buildings

Žigart, Maja; Lukman, Rebeka Kovačič; Premrov, Miroslav; Leskovar, Vesna Žegarac

doi:10.1016/j.energy.2018.08.149

Cited by 56 publications

(20 citation statements)

References 27 publications

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“…The extended paper of this research with additional environmental indicators and in-depth analysis of building envelope components has already been published in the international scientific journal [11].…”

Section: Resultsmentioning

confidence: 99%

Comparison of building’s external wall components based on global warming potential

Žigart¹,

Lukman²,

Premrov³

et al. 2018

Common Foundations 2018 - uniSTem: 6th Congress of Young Researchers in the Field of Civil Engineering and Related Sciences

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Lowering environmental impacts in the operational phase of the building's life cycle has been achieved by introducing highly-insulated thermal envelopes in temperate and cold climates. However, the emissions and energy used in other life cycle phases should also be considered. The paper presents the comparison of the building's external wall components based on global warming potential in the production phase. Four types of construction (reinforced concrete, brick, cross-laminated timber and timber-frame) and three types of insulation materials (rock wool, expanded polystyrene and wood fibre) used within external wall components are analysed. Three heat transfer coefficients of the wall components were selected and compared. The results of the study demonstrate the potential of lowering environmental impacts of building external wall components by selecting suitable materials and present the solutions for the optimization of thermal envelopes in the design phase.

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Section: Resultsmentioning

confidence: 99%

Comparison of building’s external wall components based on global warming potential

Žigart¹,

Lukman²,

Premrov³

et al. 2018

Common Foundations 2018 - uniSTem: 6th Congress of Young Researchers in the Field of Civil Engineering and Related Sciences

Self Cite

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“…Climate data as a performance parameter, the associated design features include solar radiation, topography, humidity, evaporation, wind, rain, temperature, heat, precipitation, greenhouse gas (GHG) emissions, built environment, latitude and longitude [61,62]. The features of the performance parameter Building Design and Envelope include identifying the function, use of the building and generate a quantitative list of building components that are assembling the building envelope such as exterior walls, roofs and openings of the building [40,63]. In these terms, the proposed methodological framework of this analysis can accommodate a large number of construction components, however, some specific components are chosen in the case study, Section 5, just to validate the framework.…”

Section: Decision Support Analysismentioning

confidence: 99%

Integrating Parametric Analysis with Building Information Modeling to Improve Energy Performance of Construction Projects

et al. 2019

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Buildings demand a significant amount of energy during their life cycles, hence, effective design measures need to be adopted to ensure efficient energy usage and management in buildings. This study proposes a framework based on various performance parameters to enable decision-makers utilizing standard procedures and software to empower the process of sustainable energy use and management in buildings, through a parametric analysis in different climatic conditions. Experimental design is adopted within the framework via the use of various performance parameters related to the building design (i.e., construction materials for exterior walls and roofs, as well as a set of window-to-wall ratios). Results indicate that climate data plays a fundamental role in the choice of design factors that are best suited for effective energy consumption in buildings. In particular, sub-type climate classifications, as opposed to the primary climate group, have a minor influence. Around 15% improvement in the energy consumption in buildings is noticed due to changes to the design factor such as the window-to-wall ratio. Insights that can be gleaned from this study include the impact of space area, exterior openings and material thickness and choice for the envelope of the building in all climate classifications, aiding in the design of low-energy buildings.

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“…The effects of retrofitted building envelopes have been presented in various studies with different perspectives [20][21][22][23][24][25][26]. Studies based on the effects of building envelope parameters such as building dimensions, building locations, external walls, external roofs, and shading devices in tropical climates have revealed diverse optimal envelope compositions that can provide thermal comfort to the occupant [20].…”

Section: Literature Reviewmentioning

confidence: 99%

“…A lifecycle analysis was conducted on each building envelope material, and adaptation assessment from a technologies point of view in different countries, which revealed the level of implementation and maturity of some technologies in building envelopes [24]. From the environmental perspective, suitable materials can lower environmental impacts from energy usage by 20-30%, the global warming impact by 40%, and acidification potential by 50-75% [25]. From the economic point of view, the cost of investment and the desired thermal characteristics of the retrofitted building envelope need to be at an optimal point for the project to be attractive for investment [26].…”

Section: Literature Reviewmentioning

confidence: 99%

Energy and Economic Analysis of Tropical Building Envelope Material in Compliance with Thailand’s Building Energy Code

Chiradeja

Ngaopitakkul

2019

Sustainability

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The building envelope has a direct impact on the overall energy consumption of a building. Thus, an improvement in the building envelope using energy-efficient material can yield the desired energy performance. This study is based on the materials and compositions used in building envelopes in compliance with the building energy code of Thailand. The building under study is an educational building located in Bangkok, Thailand. Both the energy and the economic aspects of retrofitted building envelopes are discussed in this study. The energy performance was evaluated by calculating the thermal transfer value and whole building energy consumption using the building energy code (BEC) software. The simulation was done under the assumption that the building envelope in the case study building was retrofitted with different materials and compositions. The study determines the feasibility of retrofitting buildings using energy-efficient material by utilizing the discounted payback period and internal rate of return (IRR) as indicators. The results show that retrofitted building envelopes in every case can reduce the whole building energy consumption. In the best envelope configuration, energy consumption can decrease by 65%. In addition, the economic potential is also high, with an IRR value of approximately 15% and a payback period of 23 less than nine years. These finding indicate that a building envelope made with energy-efficient material can achieve good results for both energy performance and economic feasibility.

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Environmental impact assessment of building envelope components for low-rise buildings

Cited by 56 publications

References 27 publications

Comparison of building’s external wall components based on global warming potential

Comparison of building’s external wall components based on global warming potential

Integrating Parametric Analysis with Building Information Modeling to Improve Energy Performance of Construction Projects

Energy and Economic Analysis of Tropical Building Envelope Material in Compliance with Thailand’s Building Energy Code

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