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16pcs 24x48 inch Reflective Aluminum Foil Double Bubble Insulation Kit

16pcs 24x48 inch Reflective Aluminum Foil Double Bubble Insulation Kit

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$154.98at WalmartObserved at 3:05 PM

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Our take on the 16pcs 24x48 inch Reflective Aluminum Foil Double Bubble Insulation Kit

This is a 16-piece kit of reflective foil double-bubble insulation, each sheet 24 by 48 inches, giving about 128 square feet of coverage at roughly 1 inch thick. It works as a radiant barrier, reflecting heat rather than absorbing it, and is aimed at attics, garages and windows. The sheets are thin and flexible, so they cut with scissors and staple or tape in place. The best new price is $154.98 at Walmart as of November 4, 2026, the only new listing tracked, so there is no recent range to compare against.

Best forAttic radiant barrier over joists or under raftersGarage door and wall insulationWindow and skylight heat reflectionDIY jobs where cutting and stapling is easier than batt insulation
Pros
  • Reflects radiant heat instead of trapping it like fiberglass
  • Light and easy to cut, staple or tape
  • No loose fibers or dust like batt insulation
  • Double bubble adds a small air gap for some conductive resistance
  • 16 sheets cover about 128 square feet
Cons
  • Radiant barriers do little against conductive or convective heat loss on their own
  • Foil surface tears and dents easily during install
  • Edges and seams need foil tape to stay airtight
  • Only one new price tracked, so no price history to judge the deal
  • Not a substitute for code-required R-value in most climates

16pcs 24x48 inch Reflective Aluminum Foil Double Bubble Insulation Kit prices at every store

  • WalmartNew

    In stockSold by Seller

    $154.98Observed at 3:05 PM
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16pcs 24x48 inch Reflective Aluminum Foil Double Bubble Insulation Kit price history

Lowest price we've seen: $154.98 on Nov 4 at Walmart. Tracked across 1 store since Nov 4.

Specifications

Insulation Type
Radiant Barrier Insulation
Insulation Thickness
1 in
Recommended Use
Attic, Garage
Rec Location
Window
Product Net Content Parent
1 Each

Questions and answers

Is this worth it for an attic?
Yes if you want to cut summer heat gain from the roof deck. It reflects radiant heat well but adds little R-value, so pair it with existing insulation rather than replacing it.
How much area does the kit cover?
Sixteen sheets at 24 by 48 inches each come to about 128 square feet. Order extra if you have seams, overlaps or a large garage door.
Can I use it on windows?
Yes, it is listed for window use and reflects solar heat. It blocks the view and darkens the room, so it suits garages, storage rooms or temporary summer shading.
Does it need a air gap to work?
Yes. A radiant barrier performs best with an air space on at least one shiny side, such as facing an attic or garage cavity. Pressed flat against a surface it mostly acts as a thin vapor layer.
Is $154.98 a good price?
Only one new listing is tracked, at $154.98 at Walmart as of November 4, 2026, so there is no recent range to compare. Check the per-square-foot cost against other foil bubble rolls before buying.
What is in the box?
Sixteen pre-cut 24 by 48 inch foil double-bubble panels. Foil tape and fasteners are usually not included, so plan to buy them separately.
Where is the 16pcs 24x48 inch Reflective Aluminum Foil Double Bubble Insulation Kit cheapest?
At Walmart, for $154.98, as of our latest check.

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