Available in a variety of sizes, HY-GUARD EXCLUSION’s Roof VentGuards protect your home’s roof vent from animal damage, and intrusion. Our 18-guage, ⅝” expanded metal mesh provides a clean, professional exclusion solution. Featuring a sturdy, laser cut, ¼” pre-drilled mounting frame, our Roof VentGuards install in minutes! Roof VentGuards are available in durable stainless steel and black powder coat galvannealed steel. Made in the USA. Pioneering Exclusion Solutions for Over 75 Years.