Molded roof exhaust vent

An exhaust vent comprising:

• a roof cap inlet including a substantially planar base portion, said roof cap inlet including an upper surface and a lower surface, an aperture formed through said base portion of said roof cap inlet, a cylindrical extension extending from said lower surface at said aperture and defining a duct connection;
• a roof cap outlet adapted to attach over said roof cap inlet to thereby define a flow passage, said roof cap outlet including a semicircular portion defining a flow passage and including a hemispherical portion defining a closed end for said flow passage, said semicircular portion including opposing, generally parallel side walls, and said hemispherical portion including a semicircular rear wall contiguous with said side walls;
• attachment elements connecting said roof cap outlet to said roof cap inlet;
• and
• including a generally planar roof flashing formed integral with said roof cap outlet, said roof flashing extending continuously along lower edges of said generally parallel side walls and said semicircular wall of said hemispherical portion and extending outwardly beyond a peripheral edge of said base portion.

An exhaust vent comprising:

• a roof cap inlet including a substantially planar base portion defined by opposing, generally parallel first and second side edges, a front edge and a rear edge, said roof cap inlet including an upper surface and a lower surface, a flange portion extending upwardly from said upper surface along said first, second and rear edges, an aperture formed through said base portion of said roof cap inlet adjacent said rear edge, a cylindrical extension extending from said lower surface at said aperture and defining a duct connection, and a rectangular extension extending from said upper surface at said aperture to prevent ingestion of water through said aperture;
• a roof cap outlet including a semicircular portion defining a flow passage and including a hemispherical portion defining a closed end for said flow passage, said semicircular portion including opposing, generally parallel side walls, and said hemispherical portion including a semicircular rear wall contiguous with said side walls, a generally planar roof flashing formed integral with said semicircular and said hemispherical portions and extending in a plane coplanar with lower portions of said side walls and said rear wall, said roof flashing including a front border which is contiguous with a front border of said semicircular portion to define an open front end for said flow passage, and a recess formed in said lower portions of said side walls and said rear wall for receiving said flange portion of said roof cap inlet;
• said rectangular extension including a rearward upper edge located adjacent said hemispherical portion and a forward upper edge located adjacent said semicircular portion wherein said forward upper edge extends above said upper surface of said base portion a distance greater than the distance from said upper surface of said base portion to said rearward upper edge;
• and
• locking means locking said roof cap outlet in association with said roof cap inlet, said locking means comprising elongated tabs extending upwardly from said flange portion of said roof cap inlet and sockets formed in said roof cap outlet for receiving said tabs in frictional locking engagement.