Shop for a gravity roof vent from Grainger in either hooded or low profile design. Low-profile gravity roof vents feature corrosion-resistant, weather-resistant, rigid aluminum construction and include integral bird screens. A built-in curb cap offers prepunched holes to help provide for easy attachment to the roof curb. Use hooded gravity roof vents with either nonpowered ventilation or in conjunction with powered exhaust, supply or reversible fans. Strong, weathertight hoods on these gravity exhaust and supply ventilators feature interlocking, arched, galvanized steel panels and include a preassembled bird screen. Choose the configuration that's right for your application when you come to Grainger for a gravity roof vent.