One 2 ft by 4 ft sheet of aluminum double-bubble insulation and six 3 mm peel-and-stick double-sided adhesive squares.

Can I cut it to fit my window?

Yes. The sheet is easy to cut with scissors or a utility knife, so it can be trimmed to most window sizes.

Does it block all light?

The foil is opaque, so it blocks daylight and the view where it covers the glass. Expect a dark room behind it.

Will the adhesive squares damage my frame?

They are peel-and-stick, so removal is usually simple, but test on an inconspicuous spot first. Clean, dry, smooth surfaces hold best.

Is one sheet enough for a standard window?

A 2 ft by 4 ft sheet covers 8 square feet. Measure your glass and frame before buying, and plan on more than one sheet for larger windows.

How does it compare with foam board or insulating shades?

It is thinner and more flexible than rigid foam board, and far less finished than a cellular shade. It reflects radiant heat well but adds less R-value than thicker layered options.

TWCUSEP

Reflectix Foil Double Insulation Reflective Window Shutter Kit + Adhesive

Best price now

$22.40at WalmartChecked Nov 12

Prices are checked against each store and labelled with when.

Visit Walmart

TWCUSEP

Reflectix Foil Double Insulation Reflective Window Shutter Kit + Adhesive

Best price now

$22.40at WalmartChecked Nov 12

Prices are checked against each store and labelled with when.

Visit Walmart

Ask our agent about this product

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Price facts

Last seen at $22.40 at Walmart on Nov 12.

Our take on the Reflectix Foil Double Insulation Reflective Window Shutter Kit + Adhesive

This is a 2 ft by 4 ft sheet of double-bubble foil insulation with six peel-and-stick adhesive squares, sold as a window shutter kit. The aluminum surface reflects radiant heat while the trapped bubble layer slows conductive transfer, and the sheet can be cut with scissors to fit a window. It suits renters and homeowners who want a removable, no-hardware layer over glass in summer or winter. Compared with rigid foam board or multi-cell honeycomb shades, it is thinner and cheaper to try, but it blocks the view and does not seal edges on its own.

Best forRenters who cannot add permanent window treatmentsBlocking afternoon sun on west- and south-facing windowsAdding a removable layer over single-pane glassQuick, cut-to-size projects with no tools

Pros

Reflective foil plus bubble layer handles radiant and conductive heat
Cuts easily with household scissors to fit odd window sizes
Lightweight and simple to put up with the included adhesive squares
Removable, so it works for seasonal use
No hardware or drilling needed

Cons

Blocks daylight and the view completely
Adhesive squares may not hold on dusty, damp or textured frames
Edges are not sealed, so gaps let air and light past
Thin single sheet, so it insulates less than rigid board or layered setups

Reflectix Foil Double Insulation Reflective Window Shutter Kit + Adhesive 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.
$22.40Free shippingChecked Nov 12
Visit Walmart

About the Reflectix Foil Double Insulation Reflective Window Shutter Kit + Adhesive

This window shutter kit is a double bubble reflective insulation sheet with an aluminum surface. The sheet measures 2 ft x 4 ft and is silver.

The sheet is easy to cut, so it can be trimmed to fit different window sizes. It is sturdy and lightweight. The kit includes 6 peel-and-stick double-sided adhesive squares for mounting.

Material: Aluminum reflective double bubble insulation
Color: Silver
Dimensions: 2 ft x 4 ft
Adhesive: 6 peel-and-stick double-sided squares, 3 mm
In the box: 1 insulation sheet (2 ft x 4 ft), 6 adhesive squares

Specifications

color: SilverSource
size: 2' x 4'Source

Questions and answers

What is in the kit?: One 2 ft by 4 ft sheet of aluminum double-bubble insulation and six 3 mm peel-and-stick double-sided adhesive squares.
Can I cut it to fit my window?: Yes. The sheet is easy to cut with scissors or a utility knife, so it can be trimmed to most window sizes.
Does it block all light?: The foil is opaque, so it blocks daylight and the view where it covers the glass. Expect a dark room behind it.
Will the adhesive squares damage my frame?: They are peel-and-stick, so removal is usually simple, but test on an inconspicuous spot first. Clean, dry, smooth surfaces hold best.
Is one sheet enough for a standard window?: A 2 ft by 4 ft sheet covers 8 square feet. Measure your glass and frame before buying, and plan on more than one sheet for larger windows.
How does it compare with foam board or insulating shades?: It is thinner and more flexible than rigid foam board, and far less finished than a cellular shade. It reflects radiant heat well but adds less R-value than thicker layered options.
Where is the Reflectix Foil Double Insulation Reflective Window Shutter Kit + Adhesive cheapest?: At Walmart, for $22.40, as of our latest check.