How do gable vents work?

How do gable vents work? Gable vents, otherwise known as louvered vents, passively ventilate the attic space and roof. With vents on each side of the roof, fresh air enters through one vent, and stale air squeezes through the other. Think of gable vents as two open windows on opposite sides of the room.

Gable vents, otherwise known as louvered vents, passively ventilate the attic space and roof. With vents on each side of the roof, fresh air enters through one vent, and stale air squeezes through the other. Think of gable vents as two open windows on opposite sides of the room.