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Double Bubble Insulation - White/Foil - 4' x 25' (100 sq ft)

Double Bubble Insulation - White/Foil - 4' x 25' (100 sq ft)

4.9(216 ratings)

Best price now

$21.98at The Home DepotChecked 53 min ago

72% under what the other stores charge

Compared across 4 stores. Prices are checked against each store and labelled with when.

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Price facts

  • Lowest price today: $21.98 at The Home Depot (checked Nov 11, 2026).
  • Checked at 4 stores.

Our take on the Double Bubble Insulation - White/Foil - 4' x 25' (100 sq ft)

Double Bubble insulation is a reflective radiant barrier made of two layers of bubbles between foil facings. The trapped air pockets block radiant heat transfer and help limit condensation, which makes it useful in garages, sheds, doghouses, vehicles and RVs. It is a thin, flexible blanket that cuts with a knife and staples or tapes into place, so it suits tight spaces where rigid foam board will not fit. Compared with plain single-bubble foil, the double layer adds a second air pocket for better thermal resistance; it is not a substitute for thick batt insulation in a heated living space.

Best forGarage, shed and workshop walls and ceilingsRV, van and vehicle interior panelsDoghouses and outbuildingsQuick radiant barrier over framing or sheathing
Pros
  • Two bubble layers trap air for better radiant blocking than single bubble
  • Foil surface reflects radiant heat and resists moisture
  • Thin and flexible, fits tight spaces and curves
  • Cuts easily with a utility knife
  • Lightweight and simple to staple or tape up
Cons
  • Radiant barrier only, low R-value on its own
  • Seams need insulation tape to form a proper vapor barrier
  • Foil facing can tear or crease during handling
  • Little sound deadening compared with foam board

Double Bubble Insulation - White/Foil - 4' x 25' (100 sq ft) prices at every store

  • The Home DepotNew

    In stock

    $21.98Free shippingChecked 53 min ago
    Visit The Home Depot
  • EcoFoilNew

    In stock

    $79.00Checked 53 min ago
    Visit EcoFoil
  • Fasteners PlusNew

    In stockReturn policy

    $79.00Checked 53 min ago
    Visit Fasteners Plus
  • eBayNew

    In stockSold by shash537

    $232.00Free shippingChecked 52 min ago
    Visit eBay

Also available at

  • EcoFoilCheck price at EcoFoil
  • Fasteners PlusCheck price at Fasteners Plus

Store links may earn us a commission.

Double Bubble Insulation - White/Foil - 4' x 25' (100 sq ft) price history

Lowest price we've seen: $21.98 on Nov 11 at The Home Depot. Tracked across 4 stores since Nov 11.

What reviewers say

  • 4.9 / 5216 ratings

Owners rate it highly and describe it as easy to cut and install in sheds, garages and RVs. Most praise how it handles heat reflection and condensation, though some note the foil tears if handled roughly.

What people mention
  • InstallationPraisedBuyers say it cuts easily and goes up fast with staples or tape.
  • Heat reflectionPraisedOwners report cooler sheds and garages after lining walls and ceilings.
  • CondensationPraisedSeveral say it cut down moisture buildup in outbuildings and RVs.
  • DurabilityMixedSome find the foil facing tears or creases if handled roughly.
  • SeamsMixedBuyers note seams must be taped to get a real vapor barrier.

About the Double Bubble Insulation - White/Foil - 4' x 25' (100 sq ft)

Double Bubble insulation reflects radiant heat and helps prevent condensation in tight spaces. It is suited to garages, sheds, doghouses, vehicles and RVs.

It has two layers of bubbles that form an air pocket. The pocket slows the flow of hot and cold air through the material and reduces condensation buildup in different weather conditions.

For best results, seal all seams with insulation tape to create a vapor barrier.

Finish
White/Foil
Dimensions
4 ft x 25 ft
Coverage
100 sq ft
Type
Reflective radiant barrier
Thermal type
Blanket
Construction
Double layer of bubbles
Uses
Garages, sheds, doghouses, vehicles, RVs
Installation
Seal seams with insulation tape for a vapor barrier

Specifications

Thermal Type
Blanket
Type
Reflective Type
Reflective Type
Radiant Barrier
Adhesive Type
Epoxy AdhesiveSource
Package Size
150 gSource
Product Form

Questions and answers

Is double bubble better than single bubble?
Yes, for radiant blocking. The second bubble layer adds another trapped air pocket, so it reflects heat better than single-bubble foil of the same thickness.
Can it insulate a heated room on its own?
No. It is a radiant barrier with a low R-value. Use it over or under conventional insulation in conditioned spaces, and on its own in sheds, garages and vehicles.
How do I seal the seams?
Tape every seam with insulation tape matched to the facing. Sealing the seams is what turns the panels into a continuous vapor barrier.
Can it get wet or be used outdoors?
The foil facing resists moisture and condensation, but it is meant for sheltered spaces. Keep it out of direct rain and standing water.
How do I cut it?
A sharp utility knife against a straight edge works best. Cut with the bubbles facing up so the foil does not snag.
Where is the Double Bubble Insulation - White/Foil - 4' x 25' (100 sq ft) cheapest?
At The Home Depot, for $21.98, 72% under what the other stores charge, as of our latest check.
What do buyers say about the Double Bubble Insulation - White/Foil - 4' x 25' (100 sq ft)?
Rated 4.9 out of 5 from 216 ratings.
Where can I buy the Double Bubble Insulation - White/Foil - 4' x 25' (100 sq ft)?
4 stores we checked sell it, including eBay, EcoFoil, Fasteners Plus, The Home Depot.

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Compare the Double Bubble Insulation - White/Foil - 4' x 25' (100 sq ft)

  • Double Bubble Insulation - White/Foil - 4' x 25' (100 sq ft) vs DIY Reflective Insulation Sheet, Window Insulation Kit, Bubble Core Garage Door Insulation

Buying guides that pick the Double Bubble Insulation - White/Foil - 4' x 25' (100 sq ft)

  • Best self-adhesive foil insulation

Stores we've priced the Double Bubble Insulation - White/Foil - 4' x 25' (100 sq ft) at

  • Home Depot deals and prices
Liquid
Source
Colour
YellowSource
Shear Strength
9 MPaSource
Setting Time
3 → 5minSource
Maximum Operating Temperature
+100°CSource
Minimum Operating Temperature
-55°CSource
Operating Temperature Range
-55 → +100 °CSource
Material Compatibility
Ceramic, Concrete, Metal, Plastic, WoodSource
Package Type
BagSource
Application
BondingSource