About Master Flow™ Ridge Vent - Aluminum

The GAF Master Flow™ Ridge Vent is easy to install and helps provide ventilation at the most effective location on the roof - the ridge. Durable aluminum construction with built-in baffle helps ventilate the attic while helping to prevent moisture infiltration. Each vent provides 21.5 sq. in. (per lin. ft.) of net free ventilating area (NFA).