Air Vent 50 sq. in. NFA Aluminum Square-Top Roof Louver Static Vent in Black (Carton of 12)

Roof Louvers are a type of attic exhaust vent that make up half of a balanced attic ventilation system for each roof. Intake vents make up the other half of the system. Together they help remove any built-up heat and moisture inside the attic for year-round ventilation.