Kesan Penggunaan Unjuran Melintang kepada Pencahayaan Siang Bilik Kuliah di Bangunan Pentadbiran, Fakulti Kejuruteraan dan Alam Bina, Universiti Kebangsaan Malaysia

Daylighting plays a crucial role in making the lecture room comfortable, particularly terms of vision. Additionally, by lowering reliance on artificial lighting, it eases load electricity use. However, windows made transparent glass let most sunlight inside, which degrades visual clarity and causes glare. Therefore, strategies for limiting daylighting entry are to solving issue. One techniques is use window overhangs, including egg-crate, horizontal, vertical forms. utilisation solely horizontal types overhang exclusive subject this study. In study, lighting existing was analysed, impact projections quality also looked at. This study employed at Faculty Engineering Built Environment (FKAB) known as Seminar Room case The space typically utilised giving lectures part educational activities. Field measurements simulations with Sefaira software were methods data collecting. By contrasting from field observations, simulation validated. According FKAB Administration Building less successful when using single overhang. It possible contribute more sustainable building design better daylight discoveries, especially learning teaching, researching efficient projection ratio.