Comparative assessment of shape related cross-laminated timber building typologies focusing on environmental performance

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

doi:10.1016/j.jclepro.2018.12.140

Cited by 27 publications

(16 citation statements)

References 36 publications

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“…In this paper what happens at the end-of-life (C1-C4) and so after 50 years of lifespan of the school is not considered and calculated. This due to the lack of data about these stages in the available database for LCA [57]. Moreover, it is very difficult to know what happens after the service life of a building during the preliminary stage of the design process [58].…”

Section: Methodsmentioning

confidence: 99%

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Evaluation of Environmental and Economic Sustainability for the Building Envelope of Low-Carbon Schools

2021

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To achieve a carbon-free economy by 2050, the construction of low-carbon schools in Italy must select the proper structural and technological solutions for the building envelope while ensuring a low economic cost. The aim of this study was to analyze and compare several technological solutions for the building envelope and the related structural solutions in terms of thermo-dynamic properties, energy performance, environmental sustainability parameters, and economic evaluations, to obtain one or more alternatives. After a general study, the binomial load-bearing structure–external wall was investigated given its strong influence on both the environment and the total cost. The solutions were used in a new typological model for the kindergarten. All the solutions are comparable from an energy and environmental point of view, obtaining a primary energy demand of <25 kWh/(m2year) and an environmental impact of <20 kWh/(m2year). However, considering the economic factor and analyzing the binomial load-bearing structure–external wall, the advisable solutions are those that use wooden structures with insulation layer in wood fiber as they have a significantly lower environmental impact, along with the same good energy performance and have an acceptable cost compared to other analyzed solutions.

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Section: Methodsmentioning

confidence: 99%

“…Moreover, Hollber et al [63] outlined a wider review on visualizing method for LCA results and they include GWP and PENRT. Finally, Žegarac et al [57] analyzed the LCA of cross-laminated timber buildings and they considered as indices GWP, AP, and PENRT.…”

Section: Methodsmentioning

confidence: 99%

Evaluation of Environmental and Economic Sustainability for the Building Envelope of Low-Carbon Schools

2021

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“…In these terms, there are some specific analyses about the performances of CLT: Research that discussed the influence of the building shape on the building's environmental performance [94]; a study of the primary energy consumption of the life cycle of CLT buildings in Sweden [95]; the evaluation of the energy consumption in the life cycle of hypothetical CLT building models in Finland [96]; and a study that confirms that the impact of carbon extraction on CLT buildings is significant in the total GHG emissions during the life cycle [97].…”

Section: Characteristic Properties Of Clt Systemsmentioning

confidence: 99%

Acoustic Characteristics of Cross-Laminated Timber Systems

Bella

Mitrović

2020

Sustainability

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The growing diffusion of cross-laminated timber structures (CLT) has been accompanied by extensive research on the peculiar characteristics of this construction system, mainly concerning its economic and environmental benefits, lifecycle, structural design, resistance to seismic actions, fire protection, and energy efficiency. Nevertheless, some aspects have not yet been fully analysed. These include both the knowledge of noise protection that CLT systems are able to offer in relation to the possible applications and combinations of building elements, and the definition of calculation methods necessary to support the acoustic design. This review focuses on the main acoustic features of CLT systems and investigate on the results of the most relevant research aimed to provide key information on the application of acoustic modelling in CLT buildings. The vibro-acoustic behaviour of the basic component of this system and their interaction through the joints has been addressed, as well as the possible ways to manage acoustic information for calculation accuracy improvement by calibration with data from on-site measurements during the construction phase. This study further suggests the opportunity to improve measurement standards with specific reference curves for the bare CLT building elements, in order to compare different acoustic linings and assemblies on the same base. In addition, this study allows to identify some topics in the literature that are not yet fully clarified, providing some insights on possible future developments in research and for the optimization of these products.

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“…LCA environmental evaluation of CLT as a material itself is reported in several published studies [7,14,17,18], while logistics and wood species mix have an essential impact on the final assessment [19]. However, the generalizations in case studies on whole building life cycle assessment are limited by case-to-case type, exploitation, geometry (shape) of building [20], and the combination of materials in hybrid constructions.…”

Section: Introductionmentioning

confidence: 99%

Environmental Impact of a Mass Timber Building—A Case Study

Vaňová

Stompf

Štefko

et al. 2021

Forests

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The study focuses on a life cycle assessment of a wood-based residential building and evaluates the magnitude of individual construction components—foundations, flooring, peripheral wall, inner walls, ceiling, roof, windows, and doors—in terms of climate change; acidification; eutrophication; photochemical oxidation; depletion of abiotic elements and fossil fuels; and water scarcity categories within the system boundaries of the Product stage of the life cycle. The assessment was done using the SimaPro software and the ecoinvent database. The results pointed at the advantages of mass timber as a construction material and highlighted the significance in the type of insulation used. Foundations were found to bear the highest share of impact on photochemical oxidation reaching nearly 30% and depletion of fossil fuels accounting for about 25% of that impact. Peripheral wall was ranked the worst in terms of impact on acidification and eutrophication (more than 25% of both), depletion of elements (responsible for 50% of that impact), and had about 60% impact on water scarcity. After adding up carbon emissions and removals, the embodied impact of the whole construction on climate change was detected to be 8185.19 kg CO2 eq emissions which corresponded with 57.08 kg CO2 eq/m2 of gross internal area. A negative carbon composition of the construction was also set.

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Comparative assessment of shape related cross-laminated timber building typologies focusing on environmental performance

Cited by 27 publications

References 36 publications

Evaluation of Environmental and Economic Sustainability for the Building Envelope of Low-Carbon Schools

Evaluation of Environmental and Economic Sustainability for the Building Envelope of Low-Carbon Schools

Acoustic Characteristics of Cross-Laminated Timber Systems

Environmental Impact of a Mass Timber Building—A Case Study

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