Name a common daylighting strategy used to control glare and heat gain.

• A. Bilevel daylighting controls
• B. Kinetic skylights
• C. Shading devices, such as louvers, blinds, or fritted glazing.
• D. Anti-glare screens on displays

Answer: (C)

Shading devices are a common daylighting strategy because they control the sunlight at the boundary before it becomes interior light. Louvers, blinds, or fritted glazing intercept and diffuse direct sun, reducing glare for occupants and lowering solar heat gain by limiting how much radiant energy enters the space. They can be fixed or adjustable to track the sun, providing comfortable daylighting without excessive brightness or overheating. Other options either modify lighting after it enters the space or address screen glare rather than the daylight entering the room, so they don’t tackle glare and heat gain as directly as shading devices do.