Shading systems and glare protections
To choose a solar control device we need to consider: the site latitude, the orientation of the facade, the orientation of the openings,the aesthetic of the facade, the glazing type of the window, the need for daylight, the solar control devices.
The overall thermal and optical performance of a solar control device in respect to solar radiation impinging on it is based on the phenomena: primary transmission, reflected transmission, diffuse transmission, solar absorption.
The global shading efficiency of a device is the result of all these direct and indirect transmission processes.
Shading devices are also essential to avoid glare situations. If their luminous transmittance is too high, the risk of glare is significant. Several types of shading devices are sufficient to avoid glare from the sky: screens, reflective film, ionised film, sealed blinds.
Designers and decision makers must be conscious that the performance of the shading assembly might be different in the actual application conditions