Our Decorative Half Round Gable Vents are available in several sizes with trim attached for easy installation. This vent is purely aesthetic in form and non-functional. It adds detail and elegance to the exterior of your home and brings you years of use and enjoyment with little maintenance. As with our other gable vents, the Half Round Gable Vent Louver with trim attached is crafted in durable, lightweight urethane, an excellent alternative to wood. Our urethane vents resist the warping, rotting, cracking and insects often associated with wood. They stay cooler than aluminum vents, and they are delivered to you ready for installation.