Which shading device is a combination of horizontal vertical types and their masks are superimposed diagrams of the two masks?

• A. Eggcrate types sun shading device
• B. Louvers parallel to the wall (Horizontal types)
• C. Vertical type of Sun Shading device
• D. Combination of horizontal vertical types and their masks

Answer: (A)

Shading that combines horizontal and vertical elements in a lattice forms what’s called an eggcrate type. This design uses intersecting slats in both directions, creating a three-dimensional grid of small cells. If you think of two individual shading masks—one representing horizontal shading and one for vertical shading—the eggcrate outcome is essentially the superimposition of those two patterns. The result blocks sun from multiple angles while still admitting daylight and preserving views, reducing direct solar heat gain and glare more evenly across the day. This makes it especially effective in tropical climates where you want diffuse light without excessive heat. The other options describe shading that is limited to one orientation or don’t capture the cross-direction lattice and its double-masked, superimposed effect.