Reduce heat gain and improve energy efficiency with ES® Radiant Barrier insulation. Engineered with high-reflectivity surfaces, this advanced insulation reflects up to 97% of radiant heat—helping keep buildings cooler in summer and more efficient year-round.
How ES® Radiant Barrier Works
Radiant barrier insulation uses a highly reflective surface to block radiant heat transfer. Instead of absorbing heat like traditional insulation, it reflects energy away from the building envelope
When installed in attics, roof systems, or walls, it helps prevent heat from entering living spaces—improving comfort and reducing energy use.
In attic applications, this system works similarly to attic foil insulation, reflecting heat before it builds up in the attic space.
For roof deck installations, it can also function as radiant barrier roofing insulation, stopping heat at the highest point of the structure.
ES® Radiant Barrier Insulation Products
ES® Radiant Barrier Insulation Products
95% Reflective | RF Shielding
Best for general-purpose applications and DIY installs.
- Description
- Specifications
- Applications
ES® 55 Gram radiant barrier insulation is our most popular brand. It is perfect for DIYers to staple to attic rafters or lay over existing insulation. The strength of our product ensures there will be no ripping or tearing and our coated material resists delamination. Our premium product is available in perforated and solid rolls.
| Product Description | Two-sided reflecting metallized film with polyethylene woven reinforcement. |
| Weight | 29.5 LBS 1,000 Sq. Ft. |
| Tensile / Tear Strength | Length: 13.23 pounds force Width: 13.98 pounds force ASTM D2261 |
| Pliability | 70º±50º±5% Relative Humidity No Cracking No Delamination ASTM C1313-05 |
| Adhesive Performance | 180º±5% Relative Humidity No Bleeding No Delamination ASTM C1313-05 |
| Flame Spread & Smoke | Class A / Class 1 0 Flame Spread 5 Smoke Development ASTM E84-10 |
| Corrosiveness | PASSES ASTM D3310-00 |
| Resistance to Fungi | Pass – No Growth ASTM C1338-08 |
| Permeability | 6.29 Perms (perforated) .028 Perms (solid) ASTM E96-05 |
| Thermal Properties | Emissivity: 0.05 Reflectivity: 95% ASTM C1371-04a |
| Thermal Resistance Values * | Heat Flow Down: R-12.46 Heat Flow Up: R-2.17 Heat Flow Horizontal: R-5.54 |
*Cavity R-values per the requirements of FTC 16 CFR Part 460 for intended applications for 50° F, with a temperature differential of 30° F. The R-value used for the Heat Flow Down is for a crawlspace application with the radiant barrier installed to the bottom of 2×4 joists and facing down into an air space below. The R-value used for the Heat Flow Up is for a sealed roof cavity installed to the bottom of 2×4 roof rafters at a 45° angle without a dead air space. The R-value for Heat Flow Horizontal is for a block wall assembly, as is common for a basement or garage, installed with 1×4 furring strips on both sides.
ES® 55 GRAM can be wrapped around a structure, just under the brick or outer material. It can be placed over the rafters just before roofing materials are applied, or stapled to the roof rafters inside the attic.
Other applications include but are not limited to:
95% Reflective | RF Shielding
Our strongest all-purpose reinforced option
- Description
- Specifications
- Applications
ES® 70 Gram radiant barrier insulation is our strongest, most rigid reinforcement. If you are working on a special project that requires the absolute best in durability, this product is for you. The strength and rigidity of ES® 70 GRAM makes it the easiest to install. This coated material resists delamination and is available in perforated or solid rolls.
| Product Description | Two-sided reflecting metallized film with polyethylene woven reinforcement. |
| Weight | 32 LBS 1,000 Sq. Ft. |
| Tensile / Tear Strength | Length: 21.49 pounds force Width: 24.56 pounds force ASTM D2261 |
| Pliability | 70º±50º±5% Relative Humidity No Cracking No Delamination ASTM C1313-05 |
| Adhesive Performance | 180º±5% Relative Humidity No Bleeding No Delamination ASTM C1313-05 |
| Flame Spread & Smoke | Class A / Class 1 0 Flame Spread 5 Smoke Development ASTM E84-10 |
| Corrosiveness | PASSES ASTM D3310-00 |
| Resistance to Fungi | Pass – No Growth ASTM C1338-08 |
| Permeability | 5.88 Perms (perforated) .027 Perms (solid) ASTM E96-05 |
| Thermal Properties | Emissivity: 0.05 Reflectivity: 95% ASTM C1371-04a |
| Thermal Resistance Values * | Heat Flow Down: R-12.46 Heat Flow Up: R-2.17 Heat Flow Horizontal: R-5.54R-5.54 |
*Cavity R-values per the requirements of FTC 16 CFR Part 460 for intended applications for 50° F, with a temperature differential of 30° F. The R-value used for the Heat Flow Down is for a crawlspace application with the radiant barrier installed to the bottom of 2×4 joists and facing down into an air space below. The R-value used for the Heat Flow Up is for a sealed roof cavity installed to the bottom of 2×4 roof rafters at a 45° angle without a dead air space. The R-value for Heat Flow Horizontal is for a block wall assembly, as is common for a basement or garage, installed with 1×4 furring strips on both sides.
ES® 70 GRAM has all the same benefits as our ES® 55 GRAM with added thickness and toughness. It can be wrapped around a structure, just under the brick or outer material. It can be placed over the rafters just before roofing materials are applied, or stapled to the roof rafters inside the attic.
Other applications include but are not limited to:
95% Reflective | RF Shielding
Cost-effective solution without sacrificing performance.
- Description
- Specifications
- Applications
ES® TRI-D (Diamond) radiant barrier insulation is our most economical product, built on a thin, lightweight scrim that is easy to handle. This product is available in perforated or solid rolls.
| Product Description | Two-sided reflecting metallized film with polyester scrim reinforcement |
| Weight | 14.5 lbs 1,000 Sq. Ft. |
| Tensile / Tear Strength | Length: 2.32 pounds force Width: 1.50 pounds force ASTM D2261 |
| Pliability | 70°F±5°F & 50±5% Relative Humidity No Cracking No Delamination ASTM C1313-05 |
| Adhesive Performance | 180°F±5°F & 50% Relative Humidity No Bleeding No Delamination ASTM C1313-05 |
| Flame Spread & Smoke | Class A/ Class 1 0 Flame Spread 10 Smoke Development ASTM Method E84-10 |
| Corrosiveness | PASSES ASTM D3310-00 |
| Resistance to Fungi | Pass – No Growth ASTM C1338-08 |
| Permeability | 9.60 Perms (perforated) .032 Perms (solid) ASTM E96-05 |
| Thermal Properties | Emissivity: 0.05 Reflectivity: 95% ASTM C1371-04a |
| Thermal Resistance Values * | Heat Flow Down: R-12.46 Heat Flow Up: R-2.17 Heat Flow Horizontal: R-5.54R-5.54 |
*Cavity R-values per the requirements of FTC 16 CFR Part 460 for intended applications for 50° F, with a temperature differential of 30° F. The R-value used for the Heat Flow Down is for a crawlspace application with the radiant barrier installed to the bottom of 2×4 joists and facing down into an air space below. The R-value used for the Heat Flow Up is for a sealed roof cavity installed to the bottom of 2×4 roof rafters at a 45° angle without a dead air space. The R-value for Heat Flow Horizontal is for a block wall assembly, as is common for a basement or garage, installed with 1×4 furring strips on both sides.
ES® TRI-D (Diamond) can be used to retrofit an existing structure. It can also be stapled to the underside of the roof rafters in an attic or laid directly over mass insulation for a noticeable increase in energy savings and comfort.
Other applications include but are not limited to:
- Description
- Specifications
- Applications
ES® Agro-Foil White radiant barrier is exceptionally well-suited for agricultural applications where a vapor barrier is needed. It features a UV inhibitor for protection against UV damage and a specialized coating that ensures corrosion resistance. Additionally, its appealing white finish makes it an ideal choice for areas with exposed walls, enhancing both functionality and aesthetic appeal. Available in perforated or solid rolls.
| Product Description | One side reflective, one side white film with polyethylene woven reinforcement. |
| Weight | 32 LBS 1,000 Sq. Ft. |
| Tensile / Tear Strength | Length: 21.49 pounds force Width: 24.56 pounds force ASTM D2261 |
| Pliability | 70°F±5°F & 50±5% Relative Humidity No Cracking No Delamination ASTM C1313-05 |
| Adhesive Performance | 180°F±5°F & 50% Relative Humidity No Bleeding No Delamination ASTM C1313-05 |
| Flame Spread & Smoke | Class A / Class 1 0 Flame Spread 5 Smoke Development ASTM Method E84-10 |
| Corrosiveness | PASSES ASTM D3310-00 |
| Resistance to Fungi | Pass – No Growth ASTM C1338-08 |
| Permeability | 5.88 Perms (perforated) .027 Perms (solid) ASTM E96-05 |
| Thermal Properties | Emissivity: 0.05 Reflectivity: 95% ASTM C1371-04a |
| Thermal Resistance Values * | Heat Flow Down: R-12.46 Heat Flow Up: R-2.17 Heat Flow Horizontal: R-5.54R-5.54 |
*Cavity R-values per the requirements of FTC 16 CFR Part 460 for intended applications for 50° F, with a temperature differential of 30° F. The R-value used for the Heat Flow Down is for a crawlspace application with the radiant barrier installed to the bottom of 2×4 joists and facing down into an air space below. The R-value used for the Heat Flow Up is for a sealed roof cavity installed to the bottom of 2×4 roof rafters at a 45° angle without a dead air space. The R-value for Heat Flow Horizontal is for a block wall assembly, as is common for a basement or garage, installed with 1×4 furring strips on both sides.
ES® Agro-Foil White radiant barrier has a variety of uses in the agricultural industry. It can also be used as a replacement for our ES® 55 GRAM and ES® 70 GRAM in situations where one side is visible in a busy area.
Other applications include but are not limited to:
97% Reflective | RF Shielding
Our highest-performance reinforced option.
- Description
- Specifications
- Applications
ES® Pure Aluminum radiant barrier insulation is our most efficient product, blocking up to 97% of radiant heat, and can be used in almost any application (including SCIFs) to block RF and reduce thermal heat transfer. This product is an an industrial-strength, lightweight, durable insulation that comes in perforated or solid rolls.
| Product Description | Two-sided pure aluminum with polyethylene woven reinforcement. |
| Weight | 32 LBS 1,000 Sq. Ft. |
| Tensile / Tear Strength | Length: 27.60 pounds force Width: 26.10 pounds force ASTM D2261 |
| Pliability | 70°F±5°F & 50±5% Relative Humidity No Cracking No Delamination ASTM C1313-05 |
| Adhesive Performance | 180°F±5°F & 50% Relative Humidity No Bleeding No Delamination ASTM C1313-05 |
| Flame Spread & Smoke | Class A / Class 1 0 Flame Spread 20 Smoke Development ASTM Method E84-10 |
| Corrosiveness | PASSES ASTM D3310-00 |
| Resistance to Fungi | Pass – No Growth ASTM C1338-08 |
| Permeability | 5.69 Perms (perforated) .01 Perms (solid) ASTM E96-05 |
| Thermal Properties | Emissivity: 0.03 Reflectivity: 97% ASTM C1371-04a |
| Thermal Resistance Values * | Heat Flow Down: R-12.46 Heat Flow Up: R-2.17 Heat Flow Horizontal: R-5.54R-5.54 |
*Cavity R-values per the requirements of FTC 16 CFR Part 460 for intended applications for 50° F, with a temperature differential of 30° F. The R-value used for the Heat Flow Down is for a crawlspace application with the radiant barrier installed to the bottom of 2×4 joists and facing down into an air space below. The R-value used for the Heat Flow Up is for a sealed roof cavity installed to the bottom of 2×4 roof rafters at a 45° angle without a dead air space. The R-value for Heat Flow Horizontal is for a block wall assembly, as is common for a basement or garage, installed with 1×4 furring strips on both sides.
ES® PURE ALUMINUM radiant barrier is more moldable than our metalized products. It can be wrapped around a structure, just under the brick or outer material. It can be placed over the rafters just before roofing materials are applied, or stapled to the roof rafters inside the attic.
Other applications include but are not limited to:
Where Radiant Barrier Insulation Is Used
Need Help Choosing the Right Product?
Every building is different, and the right radiant barrier depends on three things:
Tell us about your project — the building, your climate, and how you use the space — and we will recommend the exact product and configuration, with a quote. No obligation, and no guesswork.
Key Benefits of Radiant Barrier
Every building is different, and the right radiant barrier depends on three things:
- Reflects up to 97% of radiant heat
- Lowers cooling costs and attic temperatures
- Reduces condensation and moisture issues
- Provides RF/EMI shielding
- Easy DIY installation
- USA-made with extended warranties
👉 Contact us today for a custom recommendation and quote.
Why Choose Energy Shield USA Radiant Barrier Insulation?
Radiant Barrier Insulation FAQs
It is a reflective insulation that reduces radiant heat transfer while also providing shielding against radio frequency and electromagnetic waves.
Yes. It reflects heat instead of absorbing it. A study by the Florida Solar Energy Center found properly installed radiant barriers significantly lowered attic temperatures, and the US Department of Energy reports cooling savings that can reach substantial levels in hot climates.
Yes. Many products are DIY-friendly and can be stapled to rafters or laid over existing insulation.
Perforated allows moisture to pass through, while solid acts as a vapor barrier.
ES® radiant barrier insulation is available in multiple widths, including 24″, 48″, and 51″ depending on the product.
Lengths are typically custom-cut to fit your building for easier installation and reduced waste. Tell us your building dimensions and we will quote a custom cut so you do not pay for waste.
Yes. Radiant barrier insulation can be used in both new construction and retrofit applications, depending on the structure and installation method.
