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Datakvalitet för en LCA-beräkning av ett byggnadsverk
IVL Swedish Environmental Research Institute.
2019 (Swedish)Report (Other academic)
Abstract [en]

In order to communicate an LCA calculation for a building, and so that the result can be interpretable by the recipient, it must include quality documentation describing condition for calculations, assumptions and models used, and what data evaluations, delimitations and shortcomings that exists. If this is done in a consistent manner, regardless of the type of building, the ambition is to facilitate the development of the quality documentation and to interpret it. In the digitization we believe that the environmental impact will be calculated in a digitized way with life cycle assessment (LCA) methodology by facilitating already used tools. If these LCA calculations only include numerical numbers without simultaneously communicating something about how they are calculated, there is a risk that the LCA result is incorrectly interpreted and misleading. Therefore, it is important to supplement the LCA result with quality documentation. The aim of this report is to propose the contents of the LCA accompanying quality documentation for a building, with a scope to simplifying interpretation of the calculation results. The proposed quality documentation is expected to form the basis for a digital quality report. In the report the quality documentary is divided into the following parts: • The extent of the inventoryregarding construction parts, life cycle and information modules. • Quality of the resource summary, underlying LCA environmental data and the resulting weighted quality index for the calculated result. • Design of the LCA result,as part of the quality report, thus steering up the entire level of information delivery's lowest level of ambition. In the next stage of digitization, we expect that the results of what is described in the report will be digitized in future projects. The quality documentation for an LCA environmental calculation for a building should be seen as a complement to Q metadata (Erlandsson 2018a) for the construction products used during the life cycle. By supplementing Q metadata for environmental declarations for all kinds of construction products with quality documentation for an LCA calculation for all kinds of buildings, the vision is that these two works will strengthen an increased transparency about the quality of the LCA calculations.

Abstract [sv]

Genom den digitalisering vi ser framför oss kommer miljöpåverkan att kunna beräknas med livscykelanalys (LCA) direkt i de digitala vertyg som redan används i byggprocessen. Om dessa beräkningar bara inkluderar numeriska siffror, utan att samtidigt kommunicera något om hur de är beräknade, så finns det en risk att LCA-beräkningens resultat tolkas fel, vilket i sin tur kan leda till missvisande slutsatser. Därför är det viktigt att komplettera LCA-resultatet med en kvalitetsdokumentation. I denna rapport föreslås innehållet i en standardiserad kvalitetsdokumentation för en LCA-beräkning för en byggnad eller ett anläggmingsprojekt, där syftet är att förenkla framtagandet och tolkningen av beräkningsresultaten. I nästa steg i utvecklingsarbetet förväntar vi oss att resultatet av det som beskrivs i rapporten kommer att digitaliseras.

Place, publisher, year, edition, pages
Stockholm: IVL Svenska Miljöinstitutet, 2019.
Series
C report ; C366
Keywords [sv]
datakvalitet, LCA, beräkning byggnadsverk
National Category
Environmental Sciences
Identifiers
URN: urn:nbn:se:ivl:diva-185ISBN: 978-91-7883-008-4 (print)OAI: oai:DiVA.org:ivl-185DiVA, id: diva2:1549604
Available from: 2021-05-05 Created: 2021-05-05 Last updated: 2021-11-03Bibliographically approved

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CiteExportLink to record
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Citation style
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