Studying natural lightning in a hot climate

This paper is aimed to present the analysis made over scale models for a calid climate region on simulated conditions (heliodon, wind tunnel). We analyzed different settings of windows areas proportions, shading devices, and materials at global building designs. The objective of this research was to consider the architecture user as the main element of the lightning design, preserving his quality of life as a member of a society, and offering an integral comfort where he can perform his visual activities. Until recently, natural lightning in calid climate received attention due to the rising of electric energy costs. The situation behind this statement is that there are very few clouded days over the year and that during daytime thousands of workers turn on artificial lights at their job place. According to the evolution of sciences and technologies there is dissociation between building practices and real conditions in natural lightning.