Enabling energy-efficient renovation : the case of vertical extension to buildings
(2019) In Construction Innovation 19(1). p.2-14- Abstract
Purpose: This paper is based on a study of six similar buildings built in Gothenburg, Sweden, in 1971, which were in urgent need of renovation. A life cycle profit analysis shows how four competing concepts were evaluated to find a financially viable renovation concept; additionally, the environmental impacts of these renovation concepts using a life cycle assessment are presented. Design/methodology/approach: Four renovation concepts are compared to find the most appropriate concept, namely, minimalist, code-compliant, low-energy and low-energy plus vertical extension concepts. The methods used for comparison are life cycle profit analysis and life cycle impact assessment; the methods used for data gathering included site visits,... (More)
Purpose: This paper is based on a study of six similar buildings built in Gothenburg, Sweden, in 1971, which were in urgent need of renovation. A life cycle profit analysis shows how four competing concepts were evaluated to find a financially viable renovation concept; additionally, the environmental impacts of these renovation concepts using a life cycle assessment are presented. Design/methodology/approach: Four renovation concepts are compared to find the most appropriate concept, namely, minimalist, code-compliant, low-energy and low-energy plus vertical extension concepts. The methods used for comparison are life cycle profit analysis and life cycle impact assessment; the methods used for data gathering included site visits, interviews, document study, co-benefits study and energy simulation. Findings: The findings show that vertical extension supported the energy-efficient renovation of the buildings and that the combination of low-energy and the vertical extension had the highest return on investment and the lowest environmental impact. The selected concept for renovating the remaining five buildings combined was the low-energy plus vertical extension. Additional benefits from vertical extension include more apartments in central locations for the housing company, a wider variety of apartment layouts and a wider range of tenants. Drawbacks include increased use of infrastructure, green space and common appliances, as well as gentrification. Originality/value: This study shows how a vertical extension can financially enable an energy-efficient renovation and further lower its environmental impact. Benefits and drawbacks of densification are also highlighted to better understand the implementation of vertically extending a building.
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- author
- Sundling, Rikard LU ; Blomsterberg, Åke LU and Landin, Anne LU
- organization
- publishing date
- 2019
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Densification, Energy, Energy-efficient renovation, Lifecycle impact assessment, Lifecycle profit analysis, Vertical extension of buildings
- in
- Construction Innovation
- volume
- 19
- issue
- 1
- pages
- 2 - 14
- publisher
- Emerald Group Publishing Limited
- external identifiers
-
- scopus:85056481788
- ISSN
- 1471-4175
- DOI
- 10.1108/CI-04-2018-0034
- language
- English
- LU publication?
- yes
- id
- 8838a138-82d8-456d-b55b-f4b09b0a9b94
- date added to LUP
- 2018-11-28 10:38:45
- date last changed
- 2022-05-23 01:23:16
@article{8838a138-82d8-456d-b55b-f4b09b0a9b94,
abstract = {{<p>Purpose: This paper is based on a study of six similar buildings built in Gothenburg, Sweden, in 1971, which were in urgent need of renovation. A life cycle profit analysis shows how four competing concepts were evaluated to find a financially viable renovation concept; additionally, the environmental impacts of these renovation concepts using a life cycle assessment are presented. Design/methodology/approach: Four renovation concepts are compared to find the most appropriate concept, namely, minimalist, code-compliant, low-energy and low-energy plus vertical extension concepts. The methods used for comparison are life cycle profit analysis and life cycle impact assessment; the methods used for data gathering included site visits, interviews, document study, co-benefits study and energy simulation. Findings: The findings show that vertical extension supported the energy-efficient renovation of the buildings and that the combination of low-energy and the vertical extension had the highest return on investment and the lowest environmental impact. The selected concept for renovating the remaining five buildings combined was the low-energy plus vertical extension. Additional benefits from vertical extension include more apartments in central locations for the housing company, a wider variety of apartment layouts and a wider range of tenants. Drawbacks include increased use of infrastructure, green space and common appliances, as well as gentrification. Originality/value: This study shows how a vertical extension can financially enable an energy-efficient renovation and further lower its environmental impact. Benefits and drawbacks of densification are also highlighted to better understand the implementation of vertically extending a building.</p>}},
author = {{Sundling, Rikard and Blomsterberg, Åke and Landin, Anne}},
issn = {{1471-4175}},
keywords = {{Densification; Energy; Energy-efficient renovation; Lifecycle impact assessment; Lifecycle profit analysis; Vertical extension of buildings}},
language = {{eng}},
number = {{1}},
pages = {{2--14}},
publisher = {{Emerald Group Publishing Limited}},
series = {{Construction Innovation}},
title = {{Enabling energy-efficient renovation : the case of vertical extension to buildings}},
url = {{http://dx.doi.org/10.1108/CI-04-2018-0034}},
doi = {{10.1108/CI-04-2018-0034}},
volume = {{19}},
year = {{2019}},
}