Trimline Ridge Ventilation products offer the best ridge vent for performance, attractiveness and ease of installation. When building a new home or doing roof replacement on an existing home, you want to use the best home ventilation system available. Trimline Ridge Vents have the flexibility to be used for ridge, hip, shed and off-peak applications. Trimline roof vent can also be used with various roofing materials systems such as; three tab and dimensional shingles, flat tile, double roman tile, cedar shake, stone coated steel and standing seam metal. Trimline Composite Tile offers the look of traditional concrete and clay tiles without their heavy weight and installation challenges. The advanced composite material will give you guaranteed long-term performance, adding unmatched value to your home. Trimline Composite Slate looks like natural slate without the heavy weight and installation challenges. The advanced composite material will give you guaranteed long-term performance, adding unmatched value to your home.