The most important component of a screen is the mesh, thin fiberglass fabric strands woven to prevent bugs from flying in while still letting air flow through. Aside from our standard charcoal mesh, we provide other options to create a more functional screen. We offer the following mesh upgrades: Pet mesh (for extra durability), Solar mesh (for UV ray protection), Noseeum mesh (keeps tiny noseeum bugs out), Grey fiberglass mesh, Aluminum mesh