Vevor Insulation Roll Double Reflective Foam Core Radiant Barrier 48" x 25' NewThe Vevor double reflective insulation roll is designed to help keep interiors cooler in summer and warmer in winter. It features double sided reflective aluminum foil with a high density EPE foam core for thermal insulation and vapor control. With over 95% heat reflectivity, it helps reduce heat transfer in windows, roofs, garages, RVs, and other spaces. The material is also tear resistant, puncture resistant, and easy to cut for custom installation.