Does this replace fiberglass or foam insulation?

No. It is a radiant barrier rated R8, so it blocks radiant heat but adds little conductive resistance. Use it alongside batt or foam insulation, not instead of it.

Does it need an air gap?

Yes. A radiant barrier works best facing an open air space, such as across rafters or studs. Pressed flat against a surface, it loses much of its reflective benefit.

Yes. The material is unaffected by moisture and humidity and also acts as a vapor barrier. Tape the seams if you need a continuous barrier.

Cut it with scissors or a utility knife and fasten it with staples, nails or adhesive. The white vinyl face goes toward the living space and the foil face toward the heat source.

Yes. It is Class 1/Class A rated and tested to ASTM E84 and ASTM E2599.

What is on each side?

One side is a white vinyl finish and the other is bare foil. The white face gives a cleaner look where it stays visible.

TWCUSEP

REFLECTIX Continuous WHITE Double Bubble Reflective Foil Insulation

Best price now

$10.88at WalmartChecked Nov 11

Prices are checked against each store and labelled with when.

Visit Walmart

TWCUSEP

REFLECTIX Continuous WHITE Double Bubble Reflective Foil Insulation

Best price now

$10.88at WalmartChecked Nov 11

Prices are checked against each store and labelled with when.

Visit Walmart

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Price facts

Last seen at $10.88 at Walmart on Nov 11.

Our take on the REFLECTIX Continuous WHITE Double Bubble Reflective Foil Insulation

This is a double-bubble radiant barrier with a white vinyl face on one side and a foil face on the other. It reflects about 97% of radiant heat and carries an R-value of R8, so it blocks radiant heat rather than slowing conductive heat like fiberglass batts. It is Class 1/Class A fire rated to ASTM E84 and E2599 and is unaffected by moisture, which suits garages, attics, sheds and metal buildings. Against foam board or batt insulation, it is thin, flexible and easy to cut, but its R8 comes mostly from the trapped air bubbles and reflective surfaces, so it needs an air gap to perform as rated.

Best forAttics and rafters where a thin radiant barrier fitsGarages, sheds and metal buildingsWrapping ducts, water heaters or pipesDIY jobs where stapling or gluing is easier than framing

Pros

Reflects about 97% of radiant heat
R8 rating in a thin, flexible roll
White vinyl face on one side, foil on the other
Class 1/Class A fire rated to ASTM E84 and E2599
Not affected by moisture or humidity
Cuts with scissors or a utility knife and installs with staples, nails or glue

Cons

R8 is modest next to batt or foam insulation
Needs an air gap to work as a radiant barrier
Thin bubble layer dents and crushes if handled roughly
Short 5 ft roll covers little area, so larger jobs need several rolls

REFLECTIX Continuous WHITE Double Bubble Reflective Foil Insulation prices at every store

WalmartNew
In stockSold by TWCUSEP SUPERSTOREReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
$10.88Free shippingChecked Nov 11
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What reviewers say

Owners use it for attics, garages and duct wraps and report it cuts radiant heat noticeably and is easy to cut and staple. Some find the short roll runs out fast on bigger jobs and note the bubbles crush if handled carelessly.

What people mention

Heat reflectionPraisedOwners say it noticeably cuts radiant heat in attics and garages.
InstallationPraisedIt cuts easily with scissors and staples or glues in place.
Roll lengthCriticisedBuyers say the 5 ft roll runs out quickly on larger jobs.
DurabilityMixedThe bubble layer holds up in damp spaces but dents and crushes if handled roughly.
Air gapMixedIt performs as rated only with an air gap, which some installers get wrong.

About the REFLECTIX Continuous WHITE Double Bubble Reflective Foil Insulation

This is a radiant barrier and vapor barrier insulation in one. It is a true double-bubble material with a white vinyl finish on one side and a foil finish on the other. It comes as a roll 16 inches wide and 5 feet long.

The material is strong and durable. It is waterproof and is not affected by moisture or humidity. It carries a Class 1 / Class A fire rating and is made in the USA.

It can be installed by stapling, nailing or gluing.

Color: White
Insulation type: Radiant barrier insulation
Construction: True double bubble, white vinyl on one side, foil on the other
Roll width: 16 in
Roll length: 5 ft
R-value: R8
Heat reflectivity: 97% radiant heat reflectivity
Heat emission: Less than 3%
Fire rating: Class 1 / Class A
Fire tests: ASTM E84 and ASTM E2599
Moisture: Waterproof; not affected by moisture or humidity
Installation: Staple, nail or glue
Origin: Made in the USA

Specifications

color: WhiteSource
size: 16inch X 5ftSource
Roll width: 16 inSource
Roll length: 5 feetSource

Questions and answers

Does this replace fiberglass or foam insulation?: No. It is a radiant barrier rated R8, so it blocks radiant heat but adds little conductive resistance. Use it alongside batt or foam insulation, not instead of it.
Does it need an air gap?: Yes. A radiant barrier works best facing an open air space, such as across rafters or studs. Pressed flat against a surface, it loses much of its reflective benefit.
Can it get wet?: Yes. The material is unaffected by moisture and humidity and also acts as a vapor barrier. Tape the seams if you need a continuous barrier.
How do I install it?: Cut it with scissors or a utility knife and fasten it with staples, nails or adhesive. The white vinyl face goes toward the living space and the foil face toward the heat source.
Is it fire rated?: Yes. It is Class 1/Class A rated and tested to ASTM E84 and ASTM E2599.
What is on each side?: One side is a white vinyl finish and the other is bare foil. The white face gives a cleaner look where it stays visible.
Where is the REFLECTIX Continuous WHITE Double Bubble Reflective Foil Insulation cheapest?: At Walmart, for $10.88, as of our latest check.
What do buyers say about the REFLECTIX Continuous WHITE Double Bubble Reflective Foil Insulation?: Rated 5 out of 5 from 1 ratings.