Air Vent 144 sq. in. NFA Galvanized Round-Top Roof Louver Static Vent in Black (1 per Carton)

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.