Model # 115361

Internet #202088285

Enerflex 24 in. x 4 ft. Radiant Barrier (10-Pack)
0090489169183

Enerflex

24 in. x 4 ft. Radiant Barrier (10-Pack)

  • Easy-to-install panels lower energy costs year-round
  • Reduces heat gain in summer, heat loss in winter
  • Use in attics, garages and under radiant-floor heating systems
$42.74 /box

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Product Overview

The Enerflex 24 in. x 4 ft. Radiant Barrier (10-Pack) 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 covers up to 80 sq. ft. 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
  • 10-piece pack covers up to 80 sq. ft.
  • 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
  • The right insulation can save on energy and heating and cooling bills. Check out our Buying Guide for helpful tips.
  • How much do you need? Let our calculator help:

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Customer Questions & Answers

3 Questions3 Answers

Customer Questions & Answers

24 in. x 4 ft. Radiant Barrier (10-Pack)
24 in. x 4 ft. Radiant Barrier (10-Pack)

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Seems like no one wants to provide the R-value. Do you mind doing so please. A civil engineer asked > a month ago. Than

This question is from 24 in. x 4 ft. Radiant Barrier (10-Pack)
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November 22, 2015
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Arizona
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Home Improvement Profile: DIYer
March 15, 2016
Answer: 
The product is not an insulator it is a reflective barrier. As you know heat moves three ways Radiation, Conduction and Convection. This product almost eliminates radiation. I installed this in a steel hanger in Glendale AZ.
Temps in the summer as high as 112 deg F. Placing my hand within an inch or less to the installed material and there was no thermal transfer from the steel building being heated by
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The product is not an insulator it is a reflective barrier. As you know heat moves three ways Radiation, Conduction and Convection. This product almost eliminates radiation. I installed this in a steel hanger in Glendale AZ.
Temps in the summer as high as 112 deg F. Placing my hand within an inch or less to the installed material and there was no thermal transfer from the steel building being heated by direct summer sunlight at the aforementioned location
Hugh a user Read Less
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What is the r-value? Is this appropriate for internal or external insulation of metal duct work?

This question is from 24 in. x 4 ft. Radiant Barrier (10-Pack)
October 14, 2015
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Arizona
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Home Improvement Profile: DIYer
March 15, 2016
Answer: 
external requires direct sunlight
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How difficult or easy is it to cut? Will sissors or utility knife work? Is it difficult to cut a straight line?

This question is from 24 in. x 4 ft. Radiant Barrier (10-Pack)
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NC
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July 27, 2015
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Arvada, Co.
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Home Improvement Profile: DIYer
July 29, 2015
Answer: 
Yes, the radiant barrier is easy to cut with regular scissors and it has small squares divided by straight lines, so just cut right on the line. Very light-weight and excellent quality.
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Customer Reviews

24 in. x 4 ft. Radiant Barrier (10-Pack) is rated 4.0 out of 5 by 20.
Rated 5 out of 5 by from Radiant Barrier Install. I am a license Air conditioning contractor & have installed radiant barrier for only a few customers & the material I have used has always been in roll form measuring 4' wide & cut to length to install. Have a neighbor/customer who hired my crew & I to install the Enerflex Radiant Barrier that he had purchased. Not knowing what to expect w/ this new product & only familiar w/ the barrier on the roll I scheduled 1 1/2 days to complete & we were done in less than 1 day. Installation was easy & moved quickly. We finished up late in the day & as w/ the roll barrier noticed the temp' difference in the attic just as well. For installing we did use a staple gun to secure pieces more securely w/ a staple in each corner even though most likely not needed but would rather not have any issues w/ possible loose pieces & call backs. The only issue we did have w/ the installation was not to the radiant barriers fault but to the fact that not all carpenters can maintain the 24" centers as the product requires between the rafters & in the case where the span was wider the staples secured the product amply. Tools I would recommend are as noted a heavy duty staple gun, heavy duty scissors to cut the barrier & plastic webbing when trimming to fit & a pair of wire cutters for cutting any of the 3 steel rods as well. Good luck w/ your installation & would use again over the roll material for the rafter installation only as it is not perforated as is also noted on the products instructions.
Date published: 2010-10-19
Rated 5 out of 5 by from good heat-reducing product for existing home Our neighbor was the first to install the Enerflex radiant barrier by himself. Observing and finding it very easy to install especially with 2 people we also purchased enough for our attic when it was on sale. We're all in our 60's. Walking out from under a 20 span we'd completed, I could feel the difference in the temperature. I just went up in the attic to snap the photos, yeah it's hot up there, this is Florida, but the heat wasn't blasting down the attic stairs as in the past so I expect a minor drop in the electric bill. Most beams were right on 24inches. A few needed some stapling. Not that I'd install it for this reason, but from a woman's point of view it does look more finished.
Date published: 2013-06-21
Rated 2 out of 5 by from Cheap at least Used for garage door insulation primarily for heat as live in Texas. Does not seem to be reflecting heat as promised. Maybe 25% - 35%. Also very difficult to cut the wire reinforcing rods built in. Not as advertised. Sure there is a better solution & will keep looking. Good Luck
Date published: 2014-10-28
Rated 5 out of 5 by from Easy to install. You can feel the difference immediately. I first tried to install it using staple gun but quickly realized the the advertised method was better. There are steel rods inside that work like a spring and fix those panels. So, after about 15 minutes I had them in place. I am buying more to complete my roof. You need to be careful not to tear them in areas where those rods penetrate the plastic.
Date published: 2016-02-07
Rated 5 out of 5 by from Great, easy, keeps the attic cooler This is sooooo easy to DIY! We are not really "handy" homeowners. We got a lot of our attic done in a hurry. We underestimated the amount we needed (not figuring in roof pitch) and are still trying to get more. I don't know why it's been "out of stock" for so long. We could tell a difference with only some of our attic done.
Date published: 2012-04-16
Rated 2 out of 5 by from Works in limited application This radiant barrier is very hard to cut because of the heavy wires that run through it. It can't be done with a utility knife but requires a clipper of some sort. If your job conforms perfectly to the 2 x 4 FT. panel size then you might have a good thing going but if there is any cutting and fitting to be done I would stay away from this product. The mylar film does tear too, which is not good. I did not find this product to be user friendly.
Date published: 2015-05-26
Rated 1 out of 5 by from Terrible product, inferior to alternatives This is the worst radiant barrier product I have worked with. The panels lack reinforcing on the long axis. The film tears very easily. There are cheaper and better options that have rip-stop or tough material. Get a roll of radiant barrier and cut it with scissors or utility knife and staple it on. Faster and does a better job.
Date published: 2015-12-06
Rated 5 out of 5 by from Great Value on this Radiant Barrier for my Garage Door I purchased this as a "daily special" from Home Depot. Installation was easy but I had to hand cut for my panels on the 16 foot Garage Door and used 3M double sided tape to attach here. Works great especially since my door faces South so I get lots of Sun & heat here. This was a great value since this was discounted as a daily special and I will purchase again if I see this on special for my new Garage going up now. Thanks Home Depot!
Date published: 2015-06-16
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