CertainTeed Ridge Vent features external baffles designed to maximize airflow across the underside of roof sheathing, ensuring efficient attic ventilation year-round. At less than an inch tall, this ridge vent is made from high-impact copolymer, allowing for seamless shingle capping for a uniform roof appearance. When paired with adequate intake ventilation, such as soffit vents or CertainTeed Intake Vent, these ridge vents create an effective ventilation system. Installed at the roof peak, they facilitate exhaust ventilation along the entire roofline. Options include 9" filtered, 9" filtered Class A fire-rated, and 12" filtered or unfiltered designs, providing flexibility to match or enhance your roof. The CertainTeed Class A Fire-Rated Ridge Vent meets UL manufacturing standards for fire safety and includes an internal weather filter for enhanced protection against the elements. The CertainTeed Unfiltered Ridge Vent, featuring external...See More baffles, maximizes airflow and roof longevity while also allowing for shingle capping. For additional protection, the CertainTeed Filtered Ridge Vent offers the same performance with an internal weather filter that guards against rain, snow, dust, and insects. With a diverse range of styles tailored for various roof applications, CertainTeed Ridge Vent ensures you find the perfect match to complement your home's design and aesthetic. See Less