Roof vent

An operating roof vent of translucent resin for mounting in a vent opening of a roof comprising;

• an integral cowl member including a downwardly projecting flange for cooperative insertion into said roof vent opening, an intermediate flange perimetrically surrounding said cowl member for securement to said roof adjacent the roof vent opening, and a vertically projecting outer frame portion of said cowl member extending above said perimetrical flange, a transverse beam integrally molded to said vertically projecting outer frame portion, a unitary vent cover and hinge member, said vent cover having a dished head and a perimetrical rim for cooperatively receiving said vertically projecting outer frame portion of said cowl member, said hinge member projecting from said outer rim downwardly, said hinge member being bonded to one section of said vertically projecting outer frame portion for pivotally supporting said vent cover, said vent cover having a depending control rim integrally formed in said dished vent cover in spaced juxtaposition and in alignment with said transverse beam, and means mounted on said transverse beam and connected to said depending control rib through an elongated slot in said rib for controlling the pivoting of said vent cover between closed, open and intermediate positions, said vertically projecting outer frame portion having a sealing deck, said sealing deck having a gasket receiving recess, a sealing gasket secured to said sealing deck for cooperatively sealing