Patent ID: 6520852
Filing Date: 2003-02-18
Classification: F24F

Abstract:
A vent for venting a building enclosure, said vent comprising:a perimeter flange having a nailing means, said nailing means having a coefficient of thermal expansion less than about 3.5Ã—10âˆ’5 in./in Â° F., said perimeter flange defining an opening to permit the passage of air therethrough; a plastic molded base portion disposed about said perimeter flange; a grill structure extending from said perimeter flange and being positioned relative to said opening to permit air to pass through said grill structure, said grill structure being sized and shaped to prevent unwanted material from passing back into said building enclosure; and a dent resistant plastic molded cap sized, shaped and positioned in place above said grill structure to impede precipitation from impinging on said grill structure.