The Vevor double reflective insulation roll is designed to help keep spaces cooler in summer and warmer in winter. It combines a double-sided aluminum foil surface with a high-density EPE foam core to reflect heat and reduce heat transfer. This insulation roll also provides vapor control for added versatility in residential, RV, garage door, roof, and window applications. Its lightweight, tear-resistant construction is easy to cut, install, fold, and store. The 48" x 100' roll covers a large area for a wide range of insulation projects.