ProfileVent® by Ventco® is a single-layer ridge vent designed for metal roofs, available in rolls of 20, 50 and 100 feet. It’s a strong, durable modified polyester, non-woven, non-wicking fiber-based matting, designed specifically for metal roofs. ProfileVent is specifically cut to fit more than 50 metal roofing profiles, more than any other ventilation system manufacturer and comes with a 40-year limited warranty. Its design prevents compressing the ridge vent material, reducing net-free area after installation.