Metal Roof Ridge Vent Comparison: NFA, Wind Resistance & Weather Barriers The mesh holes are fine enough to prevent small animals from entering the attic while still allowing air to circulate through the roof. STURDY AND DURABLE: The ridge vent mesh is made of galvanized steel and coated with black PVC to ensure good weather resistance and rust prevention. RIDGE VENT PROTECTION AGAINST ANIMALS: Specially designed to protect roof ridge vents, it effectively prevents bats, mice, squirrels, rats from entering attics and walls, while avoiding leaves, pine needles and other debris from affecting ventilation. Animal Exclusion For Ridge Vent Air Vent Premium Rolled Shingle Over Ridge Vent With Filter In The Roof Peak Protector Vs RIDGE-GUARD® Roof Ridge Vent Protection System Lincoln, NE The accompanying 60 nails and fixing washers make it more sturdy and safe, and the installation is simple and fast. This is a roof ridge vent exclusion guard cover - 65., 6' l x 4 w shingle over ridge vent, mesh ridge vents for roofs with 60 nails and washers protection against animals, prevent bats, mice, squirrels, rats and other critters from entering through the roof vent. Roof Vent Net, Fine Mesh, X1, Roof Ri Dge Vent Exclusion Guard, Cover WIDE APPLICATION: ridge vent mesh can effectively prevent various small animals from invading and damaging attic and walls from the ridge.