22-inch x 4 ft. Rafter Vent (10-Pack)

For improved air circulation in the attic, install the Durovent 22-inch x 48-inch Rafter Vent (10-Pack). It can be cut to fit most joist spaces and is an affordable way to meet energy-code requirements for air flow. Use it between rafters to create an air channel through insulation to help keep air flowing freely in your attic. Improves insulation efficiencies, allows for cooler attics in the summer months, drier attics in the winter months and helps prevent ice-dam formation Install between rafters to provide an unobstructed air channel through insulation to keep air flowing from soffits to ridge vents For use in 24-inch or 16-inch rafter or truss applications Excellent option for new construction Can be cut to fit most joist spaces Cathedral ceilings require a continuous run of vents from intake to exhaust with a 1-inch space between each vent