The purpose of this study was to provide the guidelines of Daylighting Criteria for the Green Building Certification in Korea.
First, the base model (6m?m?.7m) was used to analyze design alternatives (window-wall-ratio, visible transmittance and
overhang) by Radiance simulations. Results showed that CASE 4 (wwr - 60%, OH - 120cm) has proper average illuminance
levels and higher illuminance uniformities. Second, the base model was evaluated by LEED 2.1 & 2.2, BREEAM and CASBEE
daylighting criteria. As a result, BREEAM evaluate the daylight factor and the illuminance uniformity together, and this method
can contribute to make up for the weakness of daylight factor index only. So BREEAM is the most effective criteria to evaluate
daylight quantity and quality based on the model study in this research.