Attic Seal™

Attic stair door insulation cover

  • 100% Made in America
  • Reflects 95% of Radiant Heat
  • Radiant foil Barrier
  • Easy Zipper Access To Attic
  • Insulates & Air Seals Attic Staircase
  • Easy To Install
  • Installs Inside Rough Staircase Frame OR Attic Floor


Works for all attic entrances below
L x W x H
(54" x 25" x 9")
(54" x 25" x 15")
(56" x 25" x 9") Standard
(56" x 25" x 15") Large

For more information on how to measure your attic entrance, visit our measuring guide.

Attic Access door Insulation
Attic Seal Attic Door Cover
Attic Stair Hatch Cover

Attic Seal™

Attic door insulation

The Attic Seal™ attic stair cover is made of double bubble reflective radiant barrier – so it is light weight, thin and effective. The Attic Seal™ uses heavy-duty zippers to allow easy access to the attic. The cover helps to keep your valuable heated and cooled air in your living space where you want it. As an added benefit, the Attic Seal™ Cover also helps keep your house clean and improves your indoor air quality by keeping dust, and insulation, in the attic where they belong – not on your floors or in your air.

Installation tips

Insulate attic access

  • Installation Tips:

    • Stapling: Install the cover by stapling through the black band to the rough framed opening (usually 2x6's) above the 1x4 stair frame.
    • Orientation: Locating the zipper opening closer to the attic stair hinge will allow for easier attic access.
    • Air Sealing: Apply a bead of foam or caulk between the Cover's walls and the wood framing from the attic side to ensure a good air tight seal.
    • Larger Voids: Use our single component foam sealant to seal larger gaps and voids between Attic Seal™ and framing members.
    • Attic Seal Installation Guide
  • Attic door Insulation

    The attic access door is, typically, one of the largest sources of air leakage in your house. The US Department of Energy states, on its website, that a gap as small as 1/4 inch around your pull-down attic stairs can leak as much air as is supplied by a regular bedroom air duct. Air sealing and insulating this leak is essential to improving your home's energy efficiency. Attic Seal™ is an easy solution to sealing this problem area while maintaining easy access to your attic. The Attic Seal™ Attic Stair Cover will seal and help insulate this vulnerable point in your home's defense against budget-breaking energy loss. It is simple to install, requiring only half an hour, and will dramatically reduce energy loss – lowering your heating and cooling bills.

See the results

The image on the left is an attic entrance without an attic cover. The image on the right shows an attic entrance with a Attic Seal™ installed

Attic Cover Results