OPTIMIZING DOUBLE SKIN FAÇADE GLAZING FOR ENERGY EFFICIENCY IN SHOPPING MALL DESIGN: A CASE STUDY OF JAHI, ABUJA

This study evaluates the effectiveness of double skin façade (DSF) glazing systems in improving energy efficiency in shopping mall buildings within Abuja’s hot-humid climate. Using building performance simulations, the energy demands of various glazing configurations thermochromic, low-emissivity (low-E), tinted, and clear glass in single, double, and triple panes were compared against a base case model without DSF. Results reveal that thermochromic glazing and low-E double-pane glass achieved the greatest reductions in annual cooling energy demand, lowering consumption by up to 14% compared to conventional façades. Conversely, single-pane and untreated clear glazing exhibited the poorest performance. The study demonstrates that DSF systems optimized with climate-specific glazing significantly enhance thermal regulation, reduce cooling loads, and support sustainable commercial architecture in Nigeria.