VENT

A flood flaps vent for sealing a building crawlspace includes: (a) a vent box including open opposite front and rear ends forming a vent passageway in the vent box, the vent box including a top box portion and an opposite bottom box portion; (b) flexible flood flap hingably mounted to the vent box near the rear end of the vent box and constructed and arranged to permit the flexible flood flap to flex within the vent passageway to open the passageway; and (c) a grille that may be hingably mounted, the grille having openings therein for air and water flow through the grille, and positioned over the open front end of the vent box; the flood flap occluding the rear end of the vent box when it is in an at rest, home position. This simplified abstract is not intended to limit, and should not be interpreted as limiting, the scope of the claims.