Louvers

A storefront or shopfront is the facade or entryway of a retail store located on the ground floor or street level of a commercial building, typically louver, arrangement of parallel, horizontal blades, slats, laths, slips of glass, wood, or other material designed to regulate airflow or light penetration. Louvers are often used in windows or doors in order to allow air or light in while keeping sunshine or moisture out.
including one or more display windows. A storefront functions to attract visual attention to a business and its merchandise.