Cobra Exhaust Vent 10.5 in. x 20 ft. Mesh Roll Ridge Vent is a 20-ft low profile, shingle-over design that works with 12 in. wide ridge cap shingles.  Cobra Exhaust Vent 10.5 in. x 20 ft. Mesh Roll Ridge Vent helps remove excess heat and moisture to protect the roofing system.  Cobra Exhaust Vent 10.5 in. x 20 ft. Mesh Roll Ridge Vent is 20 ft. Nail-gunnable roll with nails included for convenient installation.  Cobra Exhaust Vent 10.5 in. x 20 ft. Mesh Roll Ridge Vent's perfect height nail system fits all major gun makes and models, making installation easy.  Cobra Exhaust Vent 10.5 in. x 20 ft. Mesh Roll Ridge Vent helps promote your home's energy efficiency by reducing excessive heat in the attic.