الفهرس 
PART 1: THEORETICAL APPROACH OF PERFORATED BUILDING ENVELOPESOnly 14 pages are availabe for public view
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Abstract
Perforated building envelopes (PBEs) are a trend in building envelope design to improve indoor environmental quality (IEQ). This research aims to consider using the parametric approach in the design of contemporary PBEs and present a design strategy to improve the IEQ through PBE configurations. The research proposed a conceptual framework to examine case studies from recent projects to reveal relationships between the key design variables. Also, the parametric-based design strategy was presented in four main stages: design objectives, input parameters, the three-step parametric approach, and output results. Grasshopper software, ClimateStudio plug-in, and Galapagos component were used to evaluate the effect of different pattern shapes, perforation ratios, and pattern matrices on thermal performance. Moreover, the optimal design scenario for the proposed south-facing PBE in an office space in the New Administrative Capital of Egypt was determined to improve thermal performance and raise energy efficiency. The results show that optimizing design variables can improve thermal performance by 36.3%. Additionally, the optimized balanced PBE can improve thermal performance by 28.2% and energy efficiency by 27% compared to the base case study without an external PBE. Also, the results revealed the total predicted improvements associated with the eastern, western, and southern orientations in relation to the results obtained from the simulation process.