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Comparison between the life cycle carbon footprint of refurbished and new buildings: A case study of Community centre

Fadoua Zhour （ Faculty of Engineering and Technology, Liverpool John Moores University, Liverpool, L3 3AF, UK. ）

Mawada Abdellatif （ Faculty of Engineering and Technology, Liverpool John Moores University, Liverpool, L3 3AF, UK. ）

Yassin Osman （ School of Engineering, University of Bolton, Bolton, BL3 5AB, UK. ）

Denise Lee （ Faculty of Engineering and Technology, Liverpool John Moores University, Liverpool, L3 3AF, UK. ）

https://doi.org/10.37155/2811-0730-0201-4

Abstract

Buildings are a huge carbon emitter. Efforts are being made to cut both embodied and operational carbon emissions to reduce the impact on the built environment. This study aims to compare the Life Cycle Carbon Footprint (LCCF) and LCC of two alternatives: refurbishment and radical replacement of an existing community centre building in Liverpool to identify options that could achieve significant CO2 emission reductions in an economically viable way. The calculation methods are standardised by the UK's RICS (Royal Institute of Chartered Surveyors) to overcome the limitations of LCAs undertaken in previous research. This refers to the Inventory of Carbon and Energy (ICE) database from which embodied calculation factors were extracted to get the greenhouse gases. While the operational emissions data were obtained from a thermal simulation through IES software. The results of this study showed that the refurbishment scenario is the best option since it emits 50% less GHG and reaches 64% lower costs compared to the new build case throughout the building’s life cycle. Such that the LCCF of the refurbishment scenario was 215,084.36 kgCO2e/m2 and its LCC £ 88,135.32, while the replacement scenario achieved 429,397.44 kgCO2e/m2 and £ 246,213.59. It can be deducted that to reach significant reductions in carbon emissions rates with a lower economic impact, refurbishment is preferable to demolition and new construction, even if the building shows several damages and defects, which suggests that the UK government should incentivise and encourage re-use for faster environmental rehabilitation.

Keywords

Carbon footprint; Construction; Energy; Life cycle; Thermal modelling

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References

[1] Designing Buildings Wiki. (2021) Carbon dioxide in construction [online]
Available from: https://www.designingbuildings.co.uk/wiki/Carbon_dioxide_in_construction#Uses_in_construction [Accessed: 23rd May 2021]
[2] UK Green Building Council. (2021) Climate Change [online]
Available from: https://www.ukgbc.org/climate-change/ [Accessed: 8th March 2021]
[3] RSM UK (2019) ENFORCING THE ENHANCEMENT OF ENERGY EFFICIENCY REGULATIONS IN THE ENGLISH PRIVATE RENTED SECTOR [online]
Available from: https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/825485/enforcing-enhancement-energy-efficiency-regulations-English-private-rented-sector.pdf [Accessed: 24th May 2021]
[4] RICS (2016) Life cycle costing [online]
Available from: https://www.rics.org/globalassets/rics-website/media/upholding-professional-standards/sector-standards/construction/black-book/life-cycle-costing-1st-edition-rics.pdf [Accessed: 25th July 2021]
[5] Papakosta, A. and Sturgis, S. (2017) Whole life carbon assessment for the built environment [online]
Available from: https://www.rics.org/globalassets/rics-website/media/news/whole-life-carbon-assessment-for-the--built-environment-november-2017.pdf [Accessed: 14th March 2021]
[6] British Standards Institute (2011) BS EN 15978:2011, Sustainability of construction works — Assessment of environmental performance of buildings — Calculation method [online]
Available from: https://bsol.bsigroup.com/ [Accessed: 29th May 2021]
[7] TRADA technology (2019) Life-cycle costing [online]
Available from: https://www.ihsti.com/tempimg/2f8f4f4-CIS888614800325425.pdf [Accessed: 9th July 2021]
[8] Schwartz, Y. (2018) An Integrated Thermal Simulation & Generative Design Decision Support Framework for the Refurbishment or Replacement of Buildings: A Life Cycle Performance Optimisation Approach [online]
Available from: https://discovery.ucl.ac.uk/id/eprint/10064687/1/Schwartz_10064687_thesis%20with%20abstract.pdf [Accessed: 28th May 2021]
[9] British Standards Institute (2017) Buildings and constructed assets — Service life planning Part 5: Life-cycle costing [online], Available from: https://www.ihsti.com/tempimg/7ffc82-CIS888614800319540.pdf [Accessed: 20th July 2021]
[10] Trading Economics. (2021) United Kingdom Inflation Rate [online] Available from: https://tradingeconomics.com/united-kingdom/inflation-cpi [Accessed: 25th July 2021]
[11] Hammond, G. and Jones, C. (2019) ICE - Inventrory of Carbon & Energy V3.0. Bath.
[12] Department for Business, Energy & Industrial Strategy (UK). Greenhouse gas reporting: conversion factors 2021. Available from: https://www.gov.uk/government/publications/greenhouse-gas-reporting-conversion-factors-2021 [Accessed: 5th August 2021]
[13] Abdellatif, M., Atherton, W., Brady, L. and Farragher, M. Liverpool: LJMU Report on initial findings for refurbishment of the Southern Neighbourhood Council Building, 2014.
[14] UK Power. (2021) Compare energy prices per kWh [online] Available from: https://www.ukpower.co.uk/home_energy/tariffs-per-unit-kwh [Accessed: 19th July 2021]
[15] Thames Water. (2021) [online] Available from: https://www.thameswater.co.uk/media-library/home/help/billing-and-account/understand-your-bill/metered-customers/how-we-calculate-metered-bills-2020-21.pdf [Accessed: 19th July 2021]
[16] Pittau, F., Amato, C., Cuffari, S., Iannaccone, G. and Malighetti, L.E. (2019) Environmental consequences of refurbishment vs. demolition and reconstruction: A comparative life cycle assessment of an Italian case study. IOP Conference Series: Earth and Environmental Science of Conference. 10.1088/1755-1315/296/1/012037.
[17] Huang, L., Liu, Y., Krigsvoll, G. and Johansen, F. (2018) Life cycle assessment and life cycle cost of university dormitories in the southeast China: Case study of the university town of Fuzhou. Journal of Cleaner Production, 173, 151-159 https://doi.org/10.1016/j.jclepro.2017.06.021.
[18] Spear, M., Hill, C., Norton, A. and Price, C. (2019) Wood in Construction in the UK: An Analysis of Carbon Abatement Potential [online] Available from: https://www.theccc.org.uk/wp-content/uploads/2019/07/Wood-in-Construction-in-the-UK-An-Analysis-of-Carbon-Abatement-Potential-BioComposites-Centre.pdf [Accessed: 6th June 2021]
[19] Li, X. and Densley Tingley, D. Solid wall insulation of the Victorian house stock in England: A whole life carbon perspective. Building and Environment, 2021; 191. https://doi.org/10.1016/j.buildenv.2021.107595.
[20] Van Gulck, L., Van de Putte, S., Delghust, M., et al. Environmental and financial assessment of façade renovations designed for change: developing optimal scenarios for apartment buildings in Flanders. Building and Environment, 2020; 183. https://doi.org/10.1016/j.buildenv.2020.107178.
[21] Alba-Rodríguez, M.D., Martínez-Rocamora, A., González-Vallejo, P., et al. Building rehabilitation versus demolition and new construction: Economic and environmental assessment. Environmental Impact Assessment Review, 2017; 66, 115-126. https://doi.org/10.1016/j.eiar.2017.06.002.
[22] Hasik, V., Escott, E., Bates, R., et al. Comparative whole-building life cycle assessment of renovation and new construction. Building and Environment, 2019; 161. https://doi.org/10.1016/j.buildenv.2019.106218.
[23] Palacios-Munoz, B., López-Mesa, B. and Gracia-Villa, L. Influence of refurbishment and service life of reinforced concrete buildings structures on the estimation of environmental impact. International Journal of Life Cycle Assessment, 2019; 24 (11), 1913-1924. https://doi.org/10.1007/s11367-019-01622-w.
[24] Sanchez, B., Esnaashary Esfahani, M. and Haas, C. A methodology to analyze the net environmental impacts and building’s cost performance of an adaptive reuse project: a case study of the Waterloo County Courthouse renovations. Environment Systems and Decisions, 2019; 39 (4), 419-438. https://doi.org/10.1007/s10669-019-09734-2.

Copyright © 2023 Fadoua Zhour, Mawada Abdellatif, Yassin Osman, Denise Lee Creative Commons License Publishing time:2023-07-30
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