What R-value does this foam roll add?

The listing gives no R-value. Closed-cell foam this thin adds only a small conductive resistance; most of the benefit comes from the reflective faces blocking radiant heat, so treat it as a radiant barrier rather than a full insulation layer.

Can it be used on a garage door with metal panels?

Yes. It is designed for panel doors and can be cut to fit each section, then stapled or glued to the panel. Tape the seams so air does not leak behind the film.

The material states it is Class 1 / Class A fire rated and has passed ASTM E84 and ASTM E2599 testing. Check local code before using it as the only barrier in an attached garage.

Which side faces the room?

The reflective metalized side faces the open space to bounce radiant heat back. The black vinyl side is the water-resistant face and goes against the door or wall.

How much area does one roll cover?

One roll is 2 ft by 25 ft, or 50 square feet. A standard single garage door is about 7 ft by 8 ft, so plan on two rolls for full coverage with seams taped.

TWCUSEP

Black Reflective Foam Core Garage Door Panel Roll Insulation

Best price now

$39.88at WalmartChecked Nov 12

Prices are checked against each store and labelled with when.

Visit Walmart

TWCUSEP

Black Reflective Foam Core Garage Door Panel Roll Insulation

Best price now

$39.88at WalmartChecked Nov 12

Prices are checked against each store and labelled with when.

Visit Walmart

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Price facts

Last seen at $39.88 at Walmart on Nov 12.

Our take on the Black Reflective Foam Core Garage Door Panel Roll Insulation

This is a 2 ft by 25 ft roll of closed-cell foam insulation faced on both sides with reflective metalized film, with a black vinyl coating on one face. It is meant to be cut and stapled or glued to garage door panels to block radiant heat and reduce drafts. The reflective surface claims to bounce back 97% of radiant heat, and the foam core adds a small conductive barrier that plain foil bubble wrap lacks. It suits homeowners insulating a sectional garage door or a shed wall, but it is thin, so it quiets and brightens a door more than it turns an unheated garage into living space.

Best forInsulating sectional garage door panelsCutting radiant heat gain in a hot garageDIY weatherproofing on a budgetShed and attic wall lining

Pros

Closed-cell foam core holds staples without tearing
Reflective film reflects 97% of radiant heat
Class 1 / Class A fire rated per ASTM E84
Black vinyl face resists water
Lightweight and easy to cut to panel size
Does not compress or crumble like loose foam

Cons

Thin foam gives modest R-value on its own
Black face absorbs some heat if sun hits it
Staples and seams need taping to stay airtight
Roll is heavy and awkward to handle alone

Black Reflective Foam Core Garage Door Panel Roll 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.
$39.88Free shippingChecked Nov 12
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About the Black Reflective Foam Core Garage Door Panel Roll Insulation

This garage door panel insulation roll has a layer of closed-cell foam bonded between two layers of highly reflective metalized aluminum polyester film. One side has a waterproof black vinyl coating rated ASTM Class 1 / Class A for fire.

The material is lightweight but durable. It holds staples without tearing, and it does not compress, collapse or disintegrate.

It works as a radiant barrier. It reflects 97% of radiant heat and emits less than 3%. It has passed the ASTM E84 and ASTM E2599 tests.

Brand: TWCUSEP
Color: Black
Size: 2' x 25'
Core: Closed-cell foam
Facing: Metalized aluminum polyester film on both sides of the core
Coating: Waterproof black vinyl on one side
Fire rating: ASTM Class 1 / Class A
Radiant heat: Reflects 97%, emits less than 3%
Tests passed: ASTM E84, ASTM E2599
Installation: Holds staples without tearing

Specifications

color: BlackSource
size: 2' x 25'Source

Questions and answers

What R-value does this foam roll add?: The listing gives no R-value. Closed-cell foam this thin adds only a small conductive resistance; most of the benefit comes from the reflective faces blocking radiant heat, so treat it as a radiant barrier rather than a full insulation layer.
Can it be used on a garage door with metal panels?: Yes. It is designed for panel doors and can be cut to fit each section, then stapled or glued to the panel. Tape the seams so air does not leak behind the film.
Is it fire rated?: The material states it is Class 1 / Class A fire rated and has passed ASTM E84 and ASTM E2599 testing. Check local code before using it as the only barrier in an attached garage.
Which side faces the room?: The reflective metalized side faces the open space to bounce radiant heat back. The black vinyl side is the water-resistant face and goes against the door or wall.
How much area does one roll cover?: One roll is 2 ft by 25 ft, or 50 square feet. A standard single garage door is about 7 ft by 8 ft, so plan on two rolls for full coverage with seams taped.
Where is the Black Reflective Foam Core Garage Door Panel Roll Insulation cheapest?: At Walmart, for $39.88, as of our latest check.