Lifecycle profit analysis of prefabricated multi-active façades
2019
Purpose
The purpose of this paper is to identify appropriate concepts of multi-active facades for the renovation of multifamily buildings in Sweden and to determine which, if any, are financially viable.
Design/methodology/approach
A lifecycle profit (LCP) analysis was used to examine financial viability through a ten-step process, which included identifying concepts, assessing costs and prices, calculating the LCP and performing sensitivity analysis. Two existing buildings – one low rise and the other high rise – were used as reference models.
Findings
The findings were contradictory. Implementing any of the multi-active facade concepts on the high-rise building would be financially beneficial. The opposite was, however, the case for the low-rise building. Two factors causing this contradiction have been identified: the facade material before renovation and the size of the building.
Research limitations/implications
The study is limited to two case buildings situated in Sweden; however, similar buildings represent a significant amount of the existing building stock. Part of the purpose of the study is also to investigate the merits of LCP analysis to evaluate energy-efficient retrofitting. The study implicates the benefits and pitfalls of LCP analysis needed to be considered by researchers and practitioners alike.
Originality/value
The research findings contribute to the understanding of energy-efficient retrofitting of existing multifamily buildings based on prefabricated multi-active facade concepts.
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