Abstract
The building sector is a major contributor to global energy consumption and CO2 emissions, particularly through electricity-related Scope 3 emissions. This study conducts a comprehensive life cycle cost (LCC) analysis of glazed façade systems in tropical climates, focusing on their potential to reduce energy consumption and enhance sustainability in office buildings. It adopts a case study-based research approach to compare the life cycle cost (LCC) of a double-glazed curtain wall façade system with that of a conventional concrete and masonry wall featuring a standard window-to-wall ratio (WWR). The analysis encompasses initial construction costs, maintenance expenses, operational savings from reduced lighting energy consumption, and end-of-life costs. Results indicate that, despite higher initial costs, the double-glazed façade system offers substantial long-term savings in maintenance and operational costs, leading to a lower overall LCC compared to the conventional façade. The findings underscore the importance of selecting appropriate façade systems to achieve energy efficiency and cost-effectiveness in tropical office buildings. The findings of this study provide valuable insights for developers and policymakers seeking to promote sustainable building practices and reduce the environmental impact of the built environment.
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•Utilizing daylight in buildings reduces energy need during the operational phase.•Daylight can be incorporated into buildings through glazed façades.•Constructing a glazed façade is more expensive than a concrete or masonry façade.•Life Cycle Cost of glazed façade is notably lower for office buildings in tropics.