CertainTeed Ridge Vent is designed with external baffles to maximize year-round airflow across the underside of roof sheathing, ensuring efficient and effective attic space ventilation. Standing at less than an inch in height, this ridge vent is crafted from a high-impact copolymer, blending seamlessly for visual appeal while allowing for shingle capping over the ridge, achieving a uniform, finished roof aesthetic. Paired with sufficient intake ventilation, such as soffit vents or CertainTeed Intake Vent, CertainTeed Ridge Vents form the most efficient and effective ventilation systems available. Installing at the peak of the roof, these vents facilitate exhaust ventilation along the entire roofline. With options including 9" filtered, 9" filtered Class A fire-rated, and 12" filtered or unfiltered, these molded, high-impact vents permit capping with shingles, providing flexibility to match the roof or enhance it with ridge and...See More cap shingles. For Class A fire-rated roof decks, the CertainTeed Class A Fire-Rated Ridge Vent meets UL manufacturing quality standards, ensuring code compliance. Like the Filtered Vent, it incorporates an internal weather filter, providing heightened protection against the elements. For a tailored solution, the CertainTeed Unfiltered Ridge Vent features external baffles, maximizing airflow to increase the longevity and performance of your roof. Less than an inch in height, it allows for capping with shingles, delivering a complete and finished look. The CertainTeed Filtered Ridge Vent offers identical performance with an additional internal weather filter for enhanced protection against rain, snow, dust, and insects. CertainTeed Ridge Vent offers a diverse range of styles tailored to suit various roof applications, ensuring you find the perfect match to complement the desired look and design for your home. See Less