What are operable shading devices?

Operable shading devices refer to features that can be manually adjusted to control the amount of sunlight entering a space. This definition aligns well with the option of manual blinds or curtains that allow users to open or close them based on their preference for light and privacy. By being operable, these devices provide flexibility for occupants to modulate natural light, which can enhance thermal comfort and reduce glare, leading to a more productive indoor environment.

Other options, while related to shading, do not fit the definition of operable shading devices. Fixed window treatments cannot be adjusted once installed. Automated solar screens might provide convenience but do not constitute manual operation. Lastly, exterior shading structures, while effective in blocking sunlight, are typically fixed in place rather than being operable by the user. Thus, the correct choice emphasizes the controllable nature of the shading device.