_Morphometric method of daylight factor Kairouan great mosque case

Natural light is a fundamental component of the architectural form. Understanding the interaction of natural light and building’s form informs about the architectural knowledge in the field of energy efficiency and improves the building quality and performance. It is often approached either as a physical phenomenon in connection with functional aspects of comfort and needs, or as a sensory phenomenon in connection with the sensory perception of the constructed environment. We propose another way, which is to handle the natural light in architecture as a measurable morphological phenomenon.