Air Vent Static Vents are popular vents with professional roofing contractors due to their affordable pricing and are designed to reduce the amount of heat in your attic drastically. They are offered in three different options such as a roof louver, gable/wall louver or wind turbines. Roof Louvers are available in metal or plastic and offered in a variety of designs such as round, square or slant-back. Gable/wall louvers add decoration while also providing ventilation. Wind turbines are available in internally and externally braced styles. Air Vent Static Vents are a great way to add exhaust ventilation to any home.