Abstract: A primary vent fitting for a roof vent is made of a single stamped component which provides superior protection against water ingress. The fitting includes a flared portion at the rear/upper edge of an upstanding flange. The flared portion cooperates with the flange to create a water diversion channel that prevents water ingress through the airflow aperture defined by the fitting. Additionally, the fitting provides a rectangular opening in its base flange that corresponds to a typical rectangular cutout in roof decking, and a transition that allows air to flow through the entirety of the rectangular opening and through the stadium-shaped aperture defined by the upstanding flange.

Abstract: A passive vent balances the competing demands of high airflow and security against intrusion of unwanted debris, precipitation and pests. The vent sits proud of the tiles in its course, and protrudes forwardly over the tiles in the course below, such that a large airflow volume is provided.

Abstract: A vent for allowing airflow between the interior of a building and the exterior of the building while providing a barrier to entry into the building of unwanted exterior environment elements such as pests (e.g., insects and small animals), debris and precipitation is disclosed.

Abstract: A vent for a roof or other structure, comprising a cavity housing portion and an outside-housing extension portion including an extension footing extending from a lower edge of a louvered ventilation side. The extension footing includes footing sub-portions to obstruct gaps between the extension footing and the structure, such as a plurality of tabs extending from the extension footing corner-edge biasing the free edge of the tab downwardly below the extension footing.

Abstract: A vent for allowing airflow between the interior of a building and the exterior of the building while providing a barrier to entry into the building of unwanted exterior environment elements such as pests (e.g., insects and small animals), debris and precipitation is disclosed.

Abstract: A vent for a roof or other structure, comprising a cavity housing portion and an outside-housing extension portion including an extension footing extending from a lower edge of a louvered ventilation side. The extension footing includes a means of obstructing gaps between the footing and the structure, such as a plurality of tabs extending from the footing corner-edge biasing the free edge of the tab downwardly below the footing.