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Radiant Barrier Bubble Aluminum Foil Reflective Insulation

Radiant Barrier Bubble Aluminum Foil Reflective Insulation

3.2· 6 ratings

Best price now

$25.81at eBayObserved at 3:43 PM

Compared across 3 stores. Prices are checked against each store and labelled with when.

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Our take on the Radiant Barrier Bubble Aluminum Foil Reflective Insulation

This is a 48-inch by 10-foot roll of double-sided aluminum foil over a bubble core, giving 100 sq ft of reflective radiant barrier. It blocks radiant heat rather than conductive heat, so it has no R-value of its own and is meant to work alongside existing insulation. It is rated for -60 F to 160 F and marketed as water and mold resistant. At $25.81 on eBay as of November 4, 2026, it is the lowest of the three new prices tracked, so the current price sits at the bottom of its recent range.

Best forAttic rafters and roof decksGarage doorsWindows and fireplace surroundsDIYers adding a radiant layer over existing insulation
Pros
  • Covers 100 sq ft per roll at 48 in wide
  • Double-sided foil reflects heat both ways
  • Bubble core adds a thin cushion and some air gap
  • Water and mold resistant facing
  • Wide -60 F to 160 F service range
Cons
  • No R-value of its own; useless as the only insulation
  • No perforations, so it can trap moisture if installed wrong
  • Thin 0.12 in material tears and creases easily
  • Foil surfaces need an air gap to work as a radiant barrier
  • Only 6 ratings, averaging 3.2 out of 5

Radiant Barrier Bubble Aluminum Foil Reflective Insulation prices at every store

  • eBayNew

    Availability unknownSold by zevma0

    $25.81Observed at 3:43 PM
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  • WalmartNew

    Availability unknownSold by Wellco Industries Inc.

    $28.99Observed at 3:43 PM
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  • Home DepotNew

    Availability unknown

    $41.98Observed at 3:43 PM
    Visit store

Radiant Barrier Bubble Aluminum Foil Reflective Insulation price history

Lowest price we've seen: $25.81 on Nov 4 at eBay. Tracked across 3 stores since Nov 4.

What reviewers say

Feedback is thin, just 6 ratings at 3.2 out of 5, so treat the score as a rough signal. Buyers of this type of foil-bubble roll generally care about coverage and how it holds up during install.

Pros
  • Easy to cut and fit to studs and rafters
  • Reflective surface noticeably cuts radiant heat
Cons
  • Foil can tear or wrinkle during handling
  • Thin material feels flimsy for the price

Specifications

Form
Rolls
Product Type
Radiant Barrier
Insulation Type
Thermal, Acoustic
Reflective Type
Bubble Reflective, Double-sided aluminum foil with foam insulation inside
Thermal Type
Radiation
Moisture Resistance
Water Resistant
Mold Resistance
Mold Resistant
Material Type
Reflective Foil
Facing
Aluminum foil
Material Composition
Aluminum foil, Foam insulation inside
Vapor Retarder
Yes
Coverage Area
100 sq ft
Thickness
0.12 in
Length
10 ft
Width
48 in
Suitable Surfaces
Windows, Around fireplaces, Attics, Floor, Garage doors
R-Value
No R value, Increases existing insulations R Value and performance
Thermal Resistance
Heat Retardant
Operating Temp Range
-60 F - +160 F
Thermal Conductivity
Does not demonstrate its function through thermal conductivity
Temperature Range
-60 F - +160 F
Vapor Permeability
No perforations for moisture to pass through
Max Service Temp
+160 F
Min Service Temp
-60 F

Questions and answers

Does this insulation have an R-value?
No. The manufacturer states no R-value; it works by reflecting radiant heat and only improves the performance of insulation you already have.
Where can I install it?
It is listed for windows, around fireplaces, attics, floors and garage doors. Keep a dead-air space between the foil and the hot side for it to reflect properly.
Will it trap moisture?
The roll has no perforations, so it acts as a vapor retarder. In humid or cold climates, seal edges and avoid trapping moisture against wood.
How much area does one roll cover?
One roll is 48 in wide by 10 ft long, about 100 sq ft. Measure your joist or rafter spacing to plan how many rolls you need.
Is $25.81 a good price?
It is the lowest of the three new prices tracked as of November 4, 2026, so it is a fair entry point. Compare per square foot against other rolls before buying several.
Where is the Radiant Barrier Bubble Aluminum Foil Reflective Insulation cheapest?
At eBay, for $25.81, as of our latest check.
What do buyers say about the Radiant Barrier Bubble Aluminum Foil Reflective Insulation?
Rated 3.2 out of 5 from 6 ratings.
Where can I buy the Radiant Barrier Bubble Aluminum Foil Reflective Insulation?
3 stores we checked sell it, including eBay, Walmart, Home Depot.