- New
67304 (Ventmate) is a roof vent insulation insert designed for standard 14 x 14-inch RV roof vents. Made with 3-inch-thick foam and R-4 insulation, it helps reduce heat loss during cold weather and improve air-conditioning efficiency in warmer conditions. Its reflective backing helps limit heat gain, while the insert also blocks incoming light. The integrated pull strap makes removal easy, and the removable cover simplifies cleaning. Sold individually.