0090489169190

Enerflex

Model # 115362

Internet # 202088286

4 ft. x 12 ft. Radiant Barrier Insulation Roll

$19.98 /each
  • Blocks solar heat in the summer and retains heat in the winter
  • 15-year limited warranty
  • Blocks up to 96% of radiant energy

Frequently Bought Together

Product Overview

The Enerflex 4 ft. x 12 ft. Radiant Barrier Insulation Roll 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 roll covers up to 48 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
  • Blocks up to 96% of radiant energy
  • 48 sq. ft. of coverage
  • 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

    You will need Adobe® Acrobat® Reader to view PDF documents.  Download a free copy from the Adobe Web site.

Specifications

Dimensions

Assembled Depth (in.) 
.065 in 
Assembled Height (in.) 
144 in 
Assembled Width (in.) 
48 in 
Product Depth (in.) 
.065 in 
Product Height (in.) 
144 in 
Product Length (ft.) 
4 ft 
Product Thickness (in.) 
0.065 in 
Product Width (in.) 
48 in 

Details

Friction Fit 
No 
Insulation Type 
Radiant Barrier 
Product Weight (lb.) 
1.5 lb 
Returnable 
90-Day 
Sheet or Roll 
Roll 

Warranty / Certifications

ENERGY STAR Certified 
No 
Warranty Information 
15-Year warranty 

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Customer Questions & Answers

17 Questions21 Answers

Customer Questions & Answers

4 ft. x 12 ft. Radiant Barrier Insulation Roll
4 ft. x 12 ft. Radiant Barrier Insulation Roll

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3 answers

Will this work to block cold and heat or just heat?

This question is from 4 ft. x 12 ft. Radiant Barrier Insulation Roll
Asked by
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January 11, 2016
I want to use this on my garage door and am wondering if it works during the cold months as well as the hot summer months.

Thanks!
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Answers (3)

Asked by
Massachusetts
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Home Improvement Profile: Professional
June 29, 2016
Answer: 
Dear iPlus10: First, cold cannot be 'reflected' and warmer air inside your garage is not radiant, so 'reflective insulation' products do not work in winter. Second, you cannot simply apply it to your garage door. Radiant barrier products require a sealed air pocket on one side, which is difficult to create on a garage door.

Fortunately, Home Depot sells another garage door insulation product that
Read More
Dear iPlus10: First, cold cannot be 'reflected' and warmer air inside your garage is not radiant, so 'reflective insulation' products do not work in winter. Second, you cannot simply apply it to your garage door. Radiant barrier products require a sealed air pocket on one side, which is difficult to create on a garage door.

Fortunately, Home Depot sells another garage door insulation product that works well, with R8 insulation winter and summer: Owens Corning Model # GD01, Home Depot Internet # 202257272 Store SKU # 744925

I hope this is helpful,

Mark
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Asked by
Massachusetts
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Home Improvement Profile: Professional
May 6, 2016
Answer: 
Dear iPlus10: No reflective insulation product is effective in winter because cold cannot be 'reflected' and warm air, e.g. inside a house, is not radiant -- so they cannot block the cold, or keep warmth inside your home.
Reflective products also require you to build a sealed air pocket on one side, which provides most of the insulation value -- e.g. a gap under a hot metal roof. This is not possible Read More
Dear iPlus10: No reflective insulation product is effective in winter because cold cannot be 'reflected' and warm air, e.g. inside a house, is not radiant -- so they cannot block the cold, or keep warmth inside your home.
Reflective products also require you to build a sealed air pocket on one side, which provides most of the insulation value -- e.g. a gap under a hot metal roof. This is not possible on a garage door.
Home Depot offers another product, however, that is effective winter and summer -- and easy to install: Owens Corning Model # GD01, Home Depot Internet # 202257272 Store SKU # 744925. This will give you R8 performance, winter and summer.
I hope this is helpful.
Mark Read Less
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January 26, 2016
Answer: 
Yes, this will both trap heat and protect against the cold.
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2 answers

Will this work compressed?

This question is from 4 ft. x 12 ft. Radiant Barrier Insulation Roll
Asked by
Payson
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March 12, 2016
I'm thinking of putting this under a bed in a camper to insulate from cold. Will compressing it make it non-functional?
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Asked by
Massachusetts
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Home Improvement Profile: Professional
May 6, 2016
Answer: 
Dear Scherry: Definitely not. First, cold cannot be "reflected" so reflective insulation does not work in the winter. It is only effective to block radiant infrared heat in the summer, e.g. from a hot metal roof. It also does not reflect warmth back into a room, because warm air is not radiant.
All "reflective" insulation also requires you to build / create a sealed air pocket on one side, which Read More
Dear Scherry: Definitely not. First, cold cannot be "reflected" so reflective insulation does not work in the winter. It is only effective to block radiant infrared heat in the summer, e.g. from a hot metal roof. It also does not reflect warmth back into a room, because warm air is not radiant.
All "reflective" insulation also requires you to build / create a sealed air pocket on one side, which provides 99% of the insulation value. If you install it under a metal roof that gets hot in the summer, for example, you must create an air pocket on the roof side. This air pocket must be carefully sealed to prevent air leaks.
Depending on how your camper is constructed, you may be able to fill the area under the bed or insert an insulation panel under the mattress. Roxul ComfortBatt is the best option to fill spaces, and ComfortBoard would work for a panel (or two) under the bed. See: Roxul ComfortBoard Model # RXCB11224, Home Depot Internet # 206789748 Store SKU # 1001748089 and Roxul ComfortBatt Model # RXCB351525, Home Depot Internet # 202090820 Store SKU # 974419
DO NOT install foam board under your bed -- a common mistake. Foam board is very flammable and must be covered by a thermal barrier in any occupied space, e.g. 1/2" drywall. This obviously won't work in a camper.
I hope this is helpful.
Mark Read Less
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March 13, 2016
Answer: 
Yes, this will work if compressed.
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2 answers

operating temperature

This question is from 4 ft. x 12 ft. Radiant Barrier Insulation Roll
Asked by
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March 12, 2016
What's the highest temperature can this product withstand?
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Answers (2)

Asked by
Massachusetts
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Home Improvement Profile: Professional
June 29, 2016
Answer: 
Dear Ganon: Good question! This product and others like it, e.g. Reach and Reflectix, are made from plastic with a melting temperature of ~220 to ~274 degrees F. This is fine to reflect heat from a hot metal roof, but not a furnace, oven, exhaust vent, etc. The same is true for foam board, which is very flammable and cannot be used near any source of heat.

Rock wool is the best solution in high
Read More
Dear Ganon: Good question! This product and others like it, e.g. Reach and Reflectix, are made from plastic with a melting temperature of ~220 to ~274 degrees F. This is fine to reflect heat from a hot metal roof, but not a furnace, oven, exhaust vent, etc. The same is true for foam board, which is very flammable and cannot be used near any source of heat.

Rock wool is the best solution in high temperature areas, e.g. Roxul ComfortBatt and ComfortBoard. Roxul provides R4 per inch -- almost as much as foam board -- but is fire resistant. See: Roxul Model # RXCB351525, Home Depot Internet # 202090820 Store SKU # 974419 and Roxul Model # RXCB11224, Home Depot Internet # 206789748 Store SKU # 1001748089

I hope this is helpful,

Mark
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Asked by
Massachusetts
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Home Improvement Profile: Professional
May 6, 2016
Answer: 
Dear Ganon: If you need to insulate a heat source, e.g. a furnace or exhaust vent, this is not the right product. Reflective insulation requires you to build / create a sealed air pocket on one side, which actually provides 99% of the insulation value.
Home Depot carries two options that are suitable next to hot surfaces: Roxul rock wool and Roxul ComfortBoard. Both are non flammable and can be used Read More
Dear Ganon: If you need to insulate a heat source, e.g. a furnace or exhaust vent, this is not the right product. Reflective insulation requires you to build / create a sealed air pocket on one side, which actually provides 99% of the insulation value.
Home Depot carries two options that are suitable next to hot surfaces: Roxul rock wool and Roxul ComfortBoard. Both are non flammable and can be used next to a furnace or oven, for example. They are also very effective, providing R4 insulation per inch.
I hope this is helpful.
Mark Read Less
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2 answers

Windows

This question is from 4 ft. x 12 ft. Radiant Barrier Insulation Roll
Asked by
San antonio tx
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October 14, 2015
I have old 1986 double pane windows in which the seal has failed. They face west. Can I use this on those windows?
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Answers (2)

Asked by
Massachusetts
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Home Improvement Profile: DIYer
November 29, 2015
Answer: 
Dear Lover of Texas: First, reflective insulation can cause major problems on windows and their frames in the summer due to heat gain, including cracked glass and melted vinyl. Based on the time of year, however, I assume you want to improve insulation for winter. In that case, reflective products will be nearly useless. The shiny surface is only effective in summer when there is radiant heat to reflect; Read More
Dear Lover of Texas: First, reflective insulation can cause major problems on windows and their frames in the summer due to heat gain, including cracked glass and melted vinyl. Based on the time of year, however, I assume you want to improve insulation for winter. In that case, reflective products will be nearly useless. The shiny surface is only effective in summer when there is radiant heat to reflect; nothing can "reflect" cold.
Unfortunately, the only real solution is replacement windows. Home Depot offers a number of options plus installation services. Special glass coatings are typically included to match summer / winter heat gain and exposure.
I hope this is helpful.
Mark Read Less
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Asked by
Arizona
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Home Improvement Profile: DIYer
October 16, 2015
Answer: 
Tex.. I am pretty sure it will work but I would build a frame work to fit inside the window to make it easy to remove on the days you want the sun in like rainy day. Hope this has helped you. Kazgal
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Customer Reviews

Rated 4.3 out of 5 by 28 reviewers.
Rated 5.0 out of 5.0 by Radiant barrier Hard to rate totally without being to tell how much better the insulation is with time. May 29, 2016
Rated 5.0 out of 5.0 by Worked great! I used this insulation on the floorboards of my 1970 Corvette to keep the engine and exhaust heat out and so far it is working great. Before, after driving for about 40 minutes I could feel the extreme coming from under the car. Now it just stays comfortably warm. May 3, 2016
Rated 1.0 out of 5.0 by wrong measurement It was at least 1 1/2 feet short. Distributor promised replacemnt, over a month ago but have not received it. April 12, 2016
Rated 2.0 out of 5.0 by NOT FOR COOLER CLIMATE ZONES Before installing this barrier, I went to read up on it. Several energy webpages were saying its not practical in cooler zones, mainly because you want to capture the solar heat on your roof to warm your attic, this barrier will prevent that in the winter/colder months. If you run your air conditioner 7 or 8 months out of the year ,this barrier should help. March 25, 2016
Rated 5.0 out of 5.0 by used this product for underside of wall cabinets We bought this product for an unusual use. Daughter and son-in-law have hot water baseboard heating in home. I wanted to install 15" deep wall cabinets over the heating. We stapled the foil product to the bottom of the cabinets so the heat would not absorb into the cabinets and instead reflect back into the room. It seems to work well for our needs. On sale at Home Depot so bought some more for a future project. February 23, 2016
Rated 5.0 out of 5.0 by Easy installation Haven't gotten to test out how well it reflects heat, but at least it is easy to put up. November 30, 2015
Rated 4.0 out of 5.0 by Colorado Springs Packaging was poor but the product was what I expected. Vey good value as a super buy. November 3, 2015
Rated 5.0 out of 5.0 by Radiant barrier I sed this material to cover house fan opening during the winter. It worked great! June 9, 2015
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