Model # 115360

Internet #202088284

Enerflex 16 in. x 4 ft. Radiant Barrier (10-Box)
0090489169176

Enerflex

16 in. x 4 ft. Radiant Barrier (10-Box)

  • Ideal for attics and garages- prevents overheating in summer
  • 15-year limited warranty
  • Blocks up to 96% of radiant energy
$28.85 /each

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Product Overview

The Enerflex 16 in. x 4 ft. Radiant Barrier (10-Box) installs easily in your attic to help reduce expensive heat loss in winter and prevent solar heat gain in summer. Designed for use beneath vertical surfaces and the underside of your roof, this pack of 10 blocks up to 96% of radiant energy and fits easily between the roof and rafters. No tools are needed for quick installation, so you can start saving on your energy bill right away.

  • For insulating attics along the underside of the roof and vertical surfaces
  • Blocks up to 96% of radiant energy
  • Reduces heat transfer by thermal radiation across air space between roof and attic floor, keeping attic warmer in winter and up to 30 degrees cooler in warm weather
  • Reduces solar heat gain and helps prevent radiant energy from leaving the home in cold weather to promote energy savings
  • Durably crafted with highly reflective, double-sided, multilayered material
  • Panels easily flex into place between roof rafters of new or existing homes
  • No tools needed for quick installation
  • California title 24 compliant
  • Eco Options approved for energy efficiency
  • Class A/1 fire rating
  • 15-year limited warranty
  • How much do you need? Let our calculator help:

    Info & Guides

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Customer Questions & Answers

7 Questions7 Answers

Customer Questions & Answers

16 in. x 4 ft. Radiant Barrier (10-Box)
16 in. x 4 ft. Radiant Barrier (10-Box)

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3 answers

Hi - can I use this on Garage Door?

This question is from 16 in. x 4 ft. Radiant Barrier (10-Box)
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October 14, 2015
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Answers (3)

Asked by
Massachusetts
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Home Improvement Profile: Professional
October 19, 2016
Answer: 
Dear Sam: Yes, but it will not make any difference unless you also create sealed air pockets between the garage door and the radiant barrier. Why? Because this radiant barrier (and similar products) has almost no R-value by itself. All radiant barriers require a sealed air gap on one side, which provides almost all of the insulation. It is almost impossible to create sealed air pockets on a moving and Read More
Dear Sam: Yes, but it will not make any difference unless you also create sealed air pockets between the garage door and the radiant barrier. Why? Because this radiant barrier (and similar products) has almost no R-value by itself. All radiant barriers require a sealed air gap on one side, which provides almost all of the insulation. It is almost impossible to create sealed air pockets on a moving and flexible garage door. The only place that a radiant barrier can be used without a sealed air gap is a ventilated attic.

Fortunately, Home Depot sells another garage door insulation product that is effective, summer and winter: Owens Corning Model # GD01, Home Depot Internet #202257272 Store SKU #744925 Store SO SKU #583042 This product delivers R-8.

I hope this is helpful,

Mark
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Asked by
Ashburn Va
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Home Improvement Profile: DIYer
February 2, 2016
Answer: 
Yes you can, I recently insulated my garage door with similar product that I got elsewhere and it does make a difference in winter, haven't thad long enough for summer but I think it will make huge difference in summer as well.
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January 16, 2016
Answer: 
Yes, you could use this on a garage door.
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2 answers

How can this product be affixed to a metal garage door?

This question is from 16 in. x 4 ft. Radiant Barrier (10-Box)
Asked by
Orlando, FL
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March 19, 2016
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Asked by
Massachusetts
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Home Improvement Profile: Professional
October 19, 2016
Answer: 
Dear AudioVideoFreak: Yes, but it will make very little difference. This reflective barrier product (and others like it, e.g. Reflectix and Reach) have almost no insulation R-value by themselves. The claims are based on a sealed air gap that you much create / build when you install it. This would be virtually impossible on a movable, flexible garage door. Simply gluing or stapling the reflective barrier Read More
Dear AudioVideoFreak: Yes, but it will make very little difference. This reflective barrier product (and others like it, e.g. Reflectix and Reach) have almost no insulation R-value by themselves. The claims are based on a sealed air gap that you much create / build when you install it. This would be virtually impossible on a movable, flexible garage door. Simply gluing or stapling the reflective barrier to the door will not work.

Fortunately, Home Depot sells another garage door insulation product that is effective, with R-8 performance summer and winter: Owens Corning Model # GD01, Home Depot Internet #202257272 Store SKU #744925 Store SO SKU #583042

I hope this is helpful.

Mark
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March 20, 2016
Answer: 
A complete installation guide is available for viewing via a link on the product page to help you determine if this item will suit all of your needs.
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1 answer

How many square feet does one box cover?

This question is from 16 in. x 4 ft. Radiant Barrier (10-Box)
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March 2, 2016
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Answer (1)

March 3, 2016
Answer: 
This covers 53.3 square ft.
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1 answer

Can i use this on walls too?

This question is from 16 in. x 4 ft. Radiant Barrier (10-Box)
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February 5, 2016
Cement walls in the basement to protect from waste line. And extra insulation in unfunished shed, already drywalled.
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Asked by
Massachusetts
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Home Improvement Profile: Professional
October 19, 2016
Answer: 
Dear SlimDoug: Yes, but radiant barriers like Enerflex, Reflectix etc are always less effective than standard insulation, e.g. foam board and rock wool. They also do not work in winter, because cold cannot be 'reflected' and the warmer air inside a building is not radiant.

Plus you must create / build a sealed air pocket behind the reflective barrier when you install it, The shiny plastic has almost
Read More
Dear SlimDoug: Yes, but radiant barriers like Enerflex, Reflectix etc are always less effective than standard insulation, e.g. foam board and rock wool. They also do not work in winter, because cold cannot be 'reflected' and the warmer air inside a building is not radiant.

Plus you must create / build a sealed air pocket behind the reflective barrier when you install it, The shiny plastic has almost zero insulation R-value; the claims are based on the air gap.

So... the best solution to improve the insulation in your basement and shed are foam board and rock wool. For example see: Super Tuff-R Model # 268441, Home Depot Internet #100322376 Store SKU #163832 Store SO SKU #621947 Tuff-R provides R-6 per inch of thickness. To fill walls and joist bays, use Roxul ComfortBatt which is much denser than fiberglass and provides R-4 per inch. See: Roxul Model # RXCB351525, Home Depot Internet #202090820 Store SKU #974419

Note that foam board is flammable and emits toxic gas when it burns. It MUST be covered by 1/2" drywall in any living space, garage, shed, accessible basement or accessible attic. So the best option for your shed, unfortunately, would be to remove the drywall, fill the stud bays with Roxul ComfortBatt, add a sheet of Super Tuff-R foam board over the top of the studs, then install new drywall. The same approach would work for the roof, if it is open.

I hope this is helpful.

Mark
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Customer Reviews

Rated 4.4 out of 5 by 8 reviewers.
Rated 5.0 out of 5.0 by very good service the product is ez to work with I wish I know about this with some of the other rentals we done some of the boxes were short but home depot came thru and took care of the credits thank you again ted March 1, 2016
Rated 5.0 out of 5.0 by Good product and good deal also Happy to do this for my garage this year. I will buy more to finish up my attic . November 25, 2015
Rated 5.0 out of 5.0 by Good Value for the Cost. The insulation panels are cut to the right size. Simply clean the surface of the door pull the backing from the panel and place. February 10, 2015
Rated 4.0 out of 5.0 by Decent - but lost its Energy Star rating The product is decent. Watch out when installing - you need to do it right on the fisrt go: once twisted, the wires that allow you to attach the panel between the rafters bend irretreivably, and the panel is no longer usable. Interestingly, the product lost its Energy Star rating, right around the time when HD had it on sale summer of 2014 - a fact not advertized by the manufacturer OR the distributor. The attic temperature did drop, though not drastically, as the product only handles one of three types of heat transmission, so this is an OK long term investment. Challenging to install in pre-built homes, especially where attic space is limited and the angle between the rafters and the "floor" is very sharp. Granted any installation of another product under such conditions would have been challenging. Overall pleased with product. July 1, 2014
Rated 3.0 out of 5.0 by Thinner than expected... The radiant barriers are nothing more than aluminum foil. For the amount I paid I was hoping for something more substantial. I can't attest to how good/bad they work as I haven't hung them yet. But just by seeing them it doesn't seem they will make much difference in helping with the heating bills. October 28, 2014
Rated 4.0 out of 5.0 by Good value. Should save me $ I actually have a remote temp sensor in my attic. Before installing Enerflex, I recorded attic temps 40 degrees above the outside temps. After Enerflex, my readings are more like 20 degrees above outside temps. I think I'll see a noticable difference in cooling costs, this first year. Enerflex was easy to install, although the roofing nails protruding down through the sheathing made it a bit harder. We'll see if they stay in place after next winter's winds give them a test. June 2, 2013
Rated 4.0 out of 5.0 by energy saver Easy staple in application. may be other uses for leftover materials. October 28, 2014
Rated 5.0 out of 5.0 by Enerflex is easy to install In Texas the weather is hott. I puuchased and installed this and it was simple to put up. Highly recommend. Attic temp is now much lower. September 9, 2010
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