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Energy and carbon balance of materials used in a building envelope renovation
University of Genoa, Italy.
Linnaeus University, Faculty of Technology, Department of Built Environment and Energy Technology.
Linnaeus University, Faculty of Technology, Department of Built Environment and Energy Technology.
Linnaeus University, Faculty of Technology, Department of Built Environment and Energy Technology.
2019 (English)In: SBE19 Brussels - BAMB-CIRCPATH "Buildings as Material Banks - A Pathway For A Circular Future"5–7 February 2019, Brussels, Belgium, Institute of Physics Publishing (IOPP), 2019, Vol. 225, article id 012045Conference paper, Published paper (Refereed)
Abstract [en]

Construction and demolition waste (CDW) are a priority waste stream in EU's polices, accounting for about 30% of all waste generated. At the same time, according to the EU energy-efficiency directive, existing buildings subject to significant renovation need to be upgraded in their thermal building envelope in order to meet higher energy performance standard. This involves additional building materials and hence increases the CDW generation. This study investigates the energy and CO2 emission balance of building envelope renovation when using different building materials, taking into account the production and end-of-life stages. The study is based on a Swedish case-study building assumed to be upgraded to the passive house standard. Benefits from waste recovering are considered, including construction and demolition wastes. The results show that the selection of building materials can significantly affect the primary energy and CO2 emission balances. Depending on the material alternative the end-of-life primary energy use and net CO2 emission can be reduced by 5%-21% and 2%-24%, respectively, compared to the initial primary energy use and net CO2 emission. Therefore, a careful material choice at the design stage, as well as an efficient waste management, can contribute to reduce primary energy use and CO2 emission associated with energy renovation of existing buildings.

Place, publisher, year, edition, pages
Institute of Physics Publishing (IOPP), 2019. Vol. 225, article id 012045
Series
IOP Conference Series: Earth and Environment, ISSN 1755-1307, E-ISSN 1755-1315
National Category
Construction Management
Research subject
Technology (byts ev till Engineering), Civil engineering
Identifiers
URN: urn:nbn:se:lnu:diva-81892DOI: 10.1088/1755-1315/225/1/012045Scopus ID: 2-s2.0-85063412923OAI: oai:DiVA.org:lnu-81892DiVA, id: diva2:1304426
Conference
Buildings as material Banks: a pathway for a circular future, SBE19 Brussels BAMB-CIRCPATH, 5-7 February, 2019; Brussels
Available from: 2019-04-12 Created: 2019-04-12 Last updated: 2019-08-29Bibliographically approved

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Dodoo, AmbroseGustavsson, LeifTettey, Uniben Yao Ayikoe

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  • apa
  • harvard1
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