Slats and louvers are both common design elements in aluminum ceilings and facades, but they serve slightly different purposes. Slats are flat, narrow strips of aluminum that are often used to create a linear, streamlined look. They are typically arranged in parallel patterns and are ideal for modern, minimalist designs. Louvers, on the other hand, are angled or curved aluminum blades designed to control light, airflow, or visibility. They are often used in facades to provide ventilation or shading while maintaining privacy. Both options are durable, lightweight, and customizable, but slats focus more on aesthetics, while louvers combine functionality with design.