Effects of solar control systems on human daylight-driven health potentials

Individuals spend over 90% of their time indoors and have limited exposure to the outdoors. This shortage of outdoor stimulation has heightened the significance of designing buildings that enhance indoor health. The occupants’ health is affected by the spectrum and intensity of light that penetrates the solar control systems. Hence, the effect of combined solar control systems and façade, i.e., complex fenestration systems (CFS), on human health needs to be thoroughly understood. Yet, most tools used to design and control solar shading systems do not take spectral effects into consideration. In this study, we developed a tool to compute spectral lighting on CFS using Bidirectional Scattering Distribution Function (BSDF) together with multi-phase and N-step simulation techniques with Radiance as the rendering engine. The novel developed routine predicts the spectral distribution of solar control systems, allowing for the assessment of their effect on well-being and health.