SKU RBV-12-C4-SMRib
The RBV-12-C4-SM-Rib is a premium 12 in. round-back static roof vent engineered specifically for metal roofs. This is done by featuring a 16 in. x 24 in. sub-base that is fabricated to the profile of the SM-Rib, Tuff Rib, Panel-Loc Plus, AG-Rib, and Master Rib roof designs. Having the roof vents base match the shape of the Sm-Rib roof ensures a watertight, professional fit. High-Performance VentilationOptimal Airflow: A 2 in. tall collar provides critical clearance between the roofline and the internal louvers, maximizing exhaust efficiency. Capacity: With 113 square inches of Net Free Area (NFA), a single vent effectively exhausts up to 470 square feet of attic space (based on the IBC 1/300 rule). Strategic Placement: Designed for roof pitches of 2/12 or greater. For maximum performance, install the roof vent within two feet of the ridge cap to capture and release the hottest air and moisture.