7 Best Attic Door Insulation Products

Best Heavy-Duty Zippered Attic Door Insulation Cover

The Energy Wise Attic Door Insulation Cover has an insulation value of R-15.5, the highest for zippered insulators (although not by much). A popular and highly reviewed item on Amazon, this product features a reflective foil covering and a fail-safe zipper for easy access.

One Amazon reviewer praised the design, writing: “Having two zippers that meet rather than one that goes from one full side to the other is also super convenient.”