Parametric Building Envelope Performance Dataset for Multi-Criteria Decision Making Analysis — 240 Scenarios, Cairo Hot-Arid Climate, Egypt

The dataset consists of 240 parametric building envelope design scenarios for a five-storey administrative building located in Cairo, Egypt (Köppen BWh, ASHRAE climate zone 1B). The scenarios have been created by enumerating combinations of 10 types of walls, 4 types of roofs, 4 types of glazing systems, 4 shading systems, 8 orientations (0-315°, with an increment of 45°), and 7 types of window-to-wall ratios (20-80%). Seven performance measures are included for each scenario: annual cooling energy consumption (kWh/m²/yr), peak cooling load (kW), thermal discomfort hours (h/yr) based on PMV index, mean daylight illuminance (lux), U-value (W/m²K), initial construction cost (EGP/m²), and embodied carbon dioxide equivalent emissions (kgCO₂e/m²). Values of performance measures were verified against EnergyPlus v23.1 simulations using the IWEC weather file of Cairo. MCDM ranking results using AHP, ANP, TOPSIS, VIKOR,