Life Cycle GHG Emissions of Material Use in the Living Laboratory: Central Europe Sustainable Buildings (CESB16)

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    Abstract

    This paper presents an analysis of the implication design choices have on embodied material emissions, with a view to better understand how the life cycle assessment of buildings can be better integrated into the building design process. The analysis is applied to a pilot net zero emission building (nZEB) called the Living Laboratory, which has been developed by the Norwegian Research Centre on Zero Emission Buildings. The impact of embodied emissions is presented through a series of sensitivity analyses that consider the definition of a functional unit and system boundary. The results for embodied emissions are presented for each building component, and highlight important design drivers for the reduction of emissions in building construction.
    Compared to the previous ZEB projects, the total embodied emission result from the Living Laboratory of 23.5kgCO2eq/m2/yr is considered high. This is due to the building having a more comprehensive material inventory, which includes more life cycle phases, and uses a higher level of technical equipment and state-of-the-art materials.
    The results show that the outer roof, photovoltaic system and outer walls drive the highest emissions. Further analysis revealed that in some cases high emissions came from the production phase, whereas in other cases it originated from the replacement phase. The results show that timber, electrical components and metal were responsible for driving the highest emissions. The results show that certain design choices, such as a change in foundation design, can reduce embodied emissions by 21%, which could be further reduced if low carbon concrete was used.
    Original languageEnglish
    Title of host publicationCESB16 – Central Europe towards Sustainable Building 2016
    Place of PublicationPrague
    PublisherGrada Publishing
    Pages1381-1388
    Number of pages8
    ISBN (Electronic)978-80-271-0248-8
    Publication statusPublished - 2016
    EventCentral Europe towards Sustainable Building, Prague 2016 (CESB16) - Czech Technical University in Prague, Prague, Czech Republic
    Duration: 22 Jun 201624 Jun 2016
    https://www.buildup.eu/en/events/central-europe-towards-sustainable-building-prague-2016-cesb16

    Conference

    ConferenceCentral Europe towards Sustainable Building, Prague 2016 (CESB16)
    Abbreviated titleCESB16
    CountryCzech Republic
    CityPrague
    Period22/06/1624/06/16
    Internet address

    Keywords

    • net zero emission buildings
    • embodied emissions materials

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  • Cite this

    Inman, M. R., & Houlihan Wiberg, A. A. M. (2016). Life Cycle GHG Emissions of Material Use in the Living Laboratory: Central Europe Sustainable Buildings (CESB16). In CESB16 – Central Europe towards Sustainable Building 2016 (pp. 1381-1388). Grada Publishing. http://hdl.handle.net/11250/2436186