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Vent With Damper

Roof vents with air backdraft dampers are made for sloped or pitched roofs. The roof vent with damper is not recommended for flat roofs. The gooseneck design forces air out down the roofline and the damper opens when the fan is on and closes with a spring when the fan is shut off. Used for kitchen and bathroom venting. Also used for dryer venting when screen is removed.