Abstract: Ridge vents, methods of their manufacture, and methods of their use are provided. The preferred ridge vent includes an elongated flexible member having a central panel portion comprising support means for supporting the central panel above a roof, a pair of side portions containing a vent opening and a baffle. The baffle is adjustable from a relatively flat position to a relatively vertical position with respect to the roof. Having an adjustable baffle permits the ridge vent to be rolled more easily, and assists in lower cost molding of the vent.

Abstract: A replaceable filtered soffit ventilator including a bracket dimensioned to line an opening in the soffit of a roof, a replaceable filter frame secured within the bracket and dimensioned to be coextensive with the opening, a porous filter media secured within the frame between a wire mesh retainer and a compressible loop to permit the free flow of air through the soffit while restricting the access of insects and dirt thereto.

Abstract: A roof ridge ventilator for the roof of a building having a shingled roof. The ventilator is formed substantially of zinc metal and has a longitudinally extending series of closely spaced drain hole punchings in the baffles thereof which are constructed and arranged to achieve flow of a substantially uniform sheet of a biostatic ionic solution of zinc across the shingled roof from opposite sides of the ventilator during rain, dew or melting snow conditions. Such a washing of the shingles prevents and retards fungus and bacterial growth which defaces the shingles.