Air Vent 14.9 in. H X 16.6 in. W X 28 in. L X 9 in. D Black Plastic Roof Vent

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. Use the Lowe's calculator to determine how many individual roof louvers are needed per roof.