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Estimating the material stock in wooden residential houses in Finland
Aalto Univ, Finland.ORCID iD: 0000-0002-8498-3846
Linnaeus University, Faculty of Technology, Department of Built Environment and Energy Technology.ORCID iD: 0000-0002-7944-6739
Aalto Univ, Finland.ORCID iD: 0000-0003-3278-130X
2021 (English)In: Waste Management, ISSN 0956-053X, E-ISSN 1879-2456, Vol. 135, p. 318-326Article in journal (Refereed) Published
Abstract [en]

The aims of this study were to quantify the amount of wood in residential houses in Finland in 2017 that could be available for cascading, and to characterize the age distribution and gross floor area of the houses in the stock. Through a bottom-up material stock analysis, the mass of wood and the gross floor area of buildings in each building type and construction period were estimated. The study found that 10 million tons of wood are contained in the structures of residential houses built before 1969, equivalent to around 59% of the stock. Since much of this stock is nearing end of life, this material should soon become available for cascading so providing a significant potential resource. It was also found that, overall, the structural parts of residential houses embody 17.5 million tons of wood, of which around 9 million tons is, theoretically, reusable and recyclable. However, for effective reuse and recycling, further analysis of the quality, type and future availability of recovered wood is required. The current results could be used for material stock and flow analyses to help planning for the use of recovered wood. Further research is needed to fill in gaps in the time-series of the number and gross floor area of buildings constructed and their average gross floor area. Moreover, a material intensity analysis of Finnish buildings is needed to better quantify the wood used.

Place, publisher, year, edition, pages
Elsevier, 2021. Vol. 135, p. 318-326
Keywords [en]
Reuse and recycling, Cascading, Recovered wood, Material stock, Residential houses, Wood intensity
National Category
Building Technologies
Research subject
Technology (byts ev till Engineering), Civil engineering
Identifiers
URN: urn:nbn:se:lnu:diva-108236DOI: 10.1016/j.wasman.2021.09.007ISI: 000709773800003PubMedID: 34563879Scopus ID: 2-s2.0-85115350309Local ID: 2021OAI: oai:DiVA.org:lnu-108236DiVA, id: diva2:1614733
Available from: 2021-11-26 Created: 2021-11-26 Last updated: 2021-11-29Bibliographically approved

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Piccardo, Chiara

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