Products / Owens Corning VentSure Metal Slant Back Roof Vent

The VentSure Metal Slant Back Vent is Owens Corning's off-ridge box vent in aluminum or galvanized steel, with a three-louver design that directs exhausted attic air upward. The data sheet and product page give 50 sq. in. of net free vent area per unit, a 16 in. x 20 in. base with an 8 in. opening, roof pitches from 3:12 to 12:12, and colors of black, brown and weathered wood; the combined data sheet and installation instructions ship six pieces per carton.