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NASA TECH
NASA TECH Reflective Foam Core Insulation, 24 in x 25 ft

NASA TECH Reflective Foam Core Insulation, 24 in x 25 ft

Best price now

$30.58at The Home DepotObserved at 3:43 PM

Compared across 2 stores. Prices are checked against each store and labelled with when.

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Our take on the NASA TECH Reflective Foam Core Insulation, 24 in x 25 ft

This is a 24-inch by 25-foot roll of reflective foam core blanket insulation, sold for wrapping ducts and other hot or cold surfaces. It pairs a reflective foil face with a closed-cell foam core, so it blocks radiant heat and adds a thin layer of conductive resistance. At $30.58 at The Home Depot as of November 4, 2026, it sits at the low end of its recent price range, which is a good time to buy if you need a roll.

Best forWrapping HVAC ducts in attics or crawlspacesGarage doors and water heater blanketsDIYers who want a thin, easy-to-cut insulationSheds and outbuildings where space is tight
Pros
  • Thin profile fits where batt insulation cannot
  • Cuts with a utility knife and installs with foil tape
  • Foil face reflects radiant heat and resists moisture
  • 25-foot roll covers about 50 square feet
  • Low price at $30.58 as of November 4, 2026
Cons
  • Low R-value per inch compared with fiberglass or foam board
  • Foil face tears easily and needs careful handling
  • Edges must be taped or sealed to work well
  • Not a substitute for a full duct-sealing job

NASA TECH Reflective Foam Core Insulation, 24 in x 25 ft prices at every store

  • The Home DepotNew

    In stock

    $30.58Free shippingObserved at 3:43 PM
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  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $34.88Free shippingObserved at 3:43 PM
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NASA TECH Reflective Foam Core Insulation, 24 in x 25 ft price history

Lowest price we've seen: $30.58 on Nov 4 at The Home Depot. Tracked across 2 stores since Nov 4.

What reviewers say

Owners of reflective foam rolls like this generally report it works well for duct wraps and quick radiant barriers, but they warn that the foil is fragile and the R-value is modest.

Pros
  • Easy to cut and fit around ducts
  • Noticeable reduction in radiant heat
  • Holds up in damp crawlspaces
Cons
  • Foil surface tears during installation
  • Thin foam gives limited R-value
  • Needs foil tape to seal seams properly

Specifications

Thermal Type
Blanket
Use
Duct
Type
Reflective Type
Reflective Type
Reflective

Questions and answers

Is this worth it for wrapping ducts?
Yes, if your ducts are in a hot attic or crawlspace and you want a thin wrap that reflects radiant heat. It is not a replacement for sealing leaks or for thick batt insulation.
What R-value does it have?
Reflective foam core blankets of this thickness typically rate around R-3 to R-4. Check the printed label on the roll for the exact figure before you buy.
How much area does one roll cover?
A 24-inch by 25-foot roll covers about 50 square feet. Measure your duct runs and add 10 to 15 percent for overlaps and cuts.
Can I use it on water heaters or garage doors?
Yes. It is commonly used as a water heater blanket and as a radiant barrier on garage doors, but keep it clear of flues and other heat sources.
When is the price lowest?
It was $30.58 at The Home Depot as of November 4, 2026, near the low end of its recent range. Insulation prices tend to dip in fall and winter, outside peak building season.
Where is the NASA TECH Reflective Foam Core Insulation, 24 in x 25 ft cheapest?
At The Home Depot, for $30.58, as of our latest check.
Where can I buy the NASA TECH Reflective Foam Core Insulation, 24 in x 25 ft?
2 stores we checked sell it, including The Home Depot, Amazon.