Round Back Roof Vent for SM-Rib Panel | Model RBV-12-C4-SM-Rib | 12-inch Diameter | 4-inch Collar
The RBV-12-C4-SM-Rib is a premium 12-inch round-back static roof vent engineered specifically for metal roofs. This is done by featuring a 16” x 24” sub-base that is fabricated to the profile of the SM-Rib, Tuff Rib, Panel-Loc Plus, AG-Rib, and Master Rib exposed fastener metal roof designs. Having the roof vents base match the shape of the SM-Rib roof ensures a watertight, professional fit.
High-Performance Ventilation
-
Optimal Airflow: A 4-inch 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, you may install the roof vent down to 4 feet maximum from the ridge cap to capture and release the hottest air and moisture.
Durability & Protection
-
Weather-Ready Design: Spun from a single piece of heavy-duty, corrosion-resistant aluminum, the aerodynamic lid provides superior structural strength against high winds and harsh weather.
-
Pest & Debris Shield: Precision-engineered internal louvers prevent rain and snow intrusion while keeping birds, insects, and wildlife out of your attic.
-
Lifetime Build: All-aluminum construction ensures the unit will remain rust-free for the life of the roof.
Energy Efficiency & Aesthetics
-
Year-Round Comfort: By exhausting radiant heat in the summer and moisture-laden air in the winter, these vents help protect your roof structure and lower energy costs.
-
Low-Profile Finish: The clean, round design blends effortlessly with metal panels. Choose from a variety of durable powder-coated colors that offer superior UV and weather resistance compared to standard wet paint.
Need Assistance?
To calculate the exact number of vents needed for your project, please use our [Vent Calculator].
For technical support or sizing questions:
Note: For duct ventilation, please see our Round Back Roof Jack. For installations requiring a roof curb, view our Curb Mount Static Vents.
