Astria Round Top with Mesh Screen RT-8DMAstria RT 8DM Round Top with Mesh Screen for Chimney Protection What is the purpose of the Astria Round Top with Mesh Screen, and how does it provide protection from debris and animals while ensuring proper ventilation in a chimney system? The Astria Round Top with Mesh Screen is designed to provide protection for a chimney system by preventing debris, birds, and small animals from entering the flue while allowing for proper ventilation. The mesh