Exhaust vent

An exhaust vent assembly for use with an exhaust duct on a flat roof for exhaust from a bathroom, kitchen or clothes dryer comprising a plastic sleeve adapted to overlie said exhaust duct wherein said plastic sleeve includes a plurality of apertures at the bottom thereof adapted to receive a clamping band to secure said plastic sleeve to said exhaust duct and a plurality of locking channels at the top thereof adapted to receive a plurality of locking lugs on the interior of a plastic neck, a plastic neck having a gooseneck configuration adapted to attach to an upper end of said plastic sleeve, a plastic damper constructed and arranged inside said plastic neck and adapted to move from a closed position to an open position in response to emission of said exhaust, a plastic damper ring attached to the inside of said plastic neck and adapted to receive said plastic damper and being eccentric in shape, a plastic cap adapted to be attached to an outer end of said plastic neck, at least one plastic bushing adapted to fit over said exhaust duct and engage the exterior wall of said exhaust duct and engage the inner wall of said plastic sleeve to create a space between said exhaust duct and said plastic sleeve and a plastic collar adapted to fit over said plastic sleeve and adjacent to said roof, wherein said exhaust vent assembly is adapted to be configured without tools and without penetrative fasteners.