Comparative Life Cycle Assessment and Cost Analysis of Building Envelope Systems in Tropical Climates: A Case Study

This research establishes a methodological foundation for evaluating the environmental and economic performance of advanced thermal insulation systems relative to conventional construction methods for commercial buildings in high-humidity tropical regions. The study focuses on Calicut, Kerala, where climate conditions—characterized by consistent temperatures averaging 27.5°C, relative humidity between 70-90%, and heavy monsoon precipitation—create distinctive challenges for building envelope selection. Through integrated analysis combining lifecycle inventory assessment and financial modeling over a 50-year operational period, the research framework accounts for material production, construction processes, operational energy demands, maintenance requirements, and end-of-life considerations. Preliminary findings indicate that thermally insulated composite systems may deliver environmental advantages and long-term economic returns despite substantially higher initial capital requirements. This research provides evidence-based guidance for construction professionals and policymakers in selecting building envelope solutions that balance sustainability imperatives with economic viability in tropical building contexts.