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Radiant Barrier Roll from EcoFoil
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Solid Radiant Barrier Foil - 4' x 125' (500 sq ft)

Solid Radiant Barrier Foil - 4' x 125' (500 sq ft)

SKU: EFM4800-48-125SOLID
Regular price $94.99
Regular price Sale price $94.99
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Product details:

Also available in 1,000 sq ft rolls.

EcoFoil Solid Radiant Barrier Foil uses reflective technology to increase the energy efficiency and comfort level of your home. A radiant barrier is made of a thin layer of woven polyethylene which is sandwiched between two layers of a highly reflective metalized coating. With the polyethylene core, the reflective barrier cannot be ripped or torn. It blocks 96% of radiant heat transfer, helping keep your home cooler in the summer and warmer in the winter.

The EcoFoil Solid Radiant Barrier acts as a foil vapor barrier when the seams are taped, keeping moisture from passing through it. This radiant barrier foil can be used in walls, roofs, floors and crawl spaces that require a vapor barrier. EcoFoil Radiant Barrier Foil can also be used inside the home on the bottom of the subfloor or joists as a radiant heat barrier, to keep heat contained either up or down, much like zone heating with an HVAC system. 

An easy way to install would be to run the product perpendicular to your framing and staple into place. For new construction the radiant barrier foil would be installed under your sheathing to keep radiant heat out during the summer months and radiant heat in during the winter months. To install in crawl spaces, staple radiant barrier foil to the bottom of your joists, keeping the heat inside your living space which will prevent condensation and the possibility of mold from forming on the joists or subfloor. This 500 square foot roll is perfect for small spaces or to limit purchase of excess materials for your job. 

R-Value Of Radiant Barriers

Rather than rating by R-value, all radiant barrier products are measured by their reflective and emissive properties. EcoFoil radiant barrier foil is 96% reflective and 4% emissive, meaning the product only allows 4% of radiant heat to pass through. For more information on R-values, see our How It Works page or contact a member of our service team via chat, calling (888) 349-3645, or using the form here.  

Important - You must use 3" Foil Tape on the seams of the material to ensure the product acts as one sheet and maintains the moisture barrier.


Made of a thin layer of woven polyethylene which is sandwiched between two layers of a highly reflective metalized coating. The material is very durable, tear-resistant, easy to work with and install.

10-year limited warranty:

This product carries a manufacturer’s 10-year limited warranty against material defects, including but not limited to de-lamination, surface imperfection, foil corrosion, and air retention. Please note: this warranty does not necessarily cover defects due to improper installation, natural disasters, normal wear and tear, or exposure to chemicals and gasses. View Manufacturer Warranty

Shipping Info:

This product ships FREE via FedEx Ground. Products ship same-day on orders received before 4pm CT and are typically delivered within 2-5 days. Expedited shipping options available. Call us at 888.349.3645 or contact us for more information on shipping options.


48 in x 125 ft (500 square feet per roll)

less than 1/64" thick

Spec Sheets: Download Spec Sheet
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Radiant Barrier Roll from EcoFoil
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Customer Reviews

Based on 27 reviews
Daw Construction Group
Project manager

Good on time


It’s a good product untareable. Just tough going when working in a crawlspace.

Volv Gym

Awesome product. Very strong and easy to work with.

East Mountain Construction
Awesome product

Loved the customer support and help!

Leland Roberts
great product and service

I got the foil vapor barrier a day earlier than expected. I was worried that it would be too delicate, but it isn't. That's fortunate, because there's been more than one time when something sharp has bumped it. It holds in place with staples and forms a nice barrier with the foil tape I also bought.
I'm not a review writer typically, but I'm glad to give this product a big thumbs up!

    Solid Radiant Barrier Foil - 4' x 125' (500 sq ft)

    Frequently Asked Questions

    What is the difference between Radiant Barrier Foil and Reflective Bubble Insulation?

    Radiant Barrier Foil provides the same heat-reflecting properties as Single / Double Bubble Reflective Insulation. The difference is there are no bubble layers in Radiant Barrier Foil. The bubbles featured in our Bubble products provide a thermal break between air on both sides of the material, and prevent formation of frost and condensation inside and outside your building. Without the bubble layer(s), you're at greater risk of condensation forming inside and/or outside of your structure. Learn more here.

    If you'd like to reflect radiant heat while also controlling condensation, choose Reflective Bubble Insulation.

    Should I choose Solid or Perforated Radiant Barrier?

    This will depend on your application. In ventilated areas such as attics, it's important to allow air flow in order to reduce the chances of moisture and mold from forming. In such applications, choose Perforated Radiant Barrier

    Outside of attics, we typically recommend Solid Radiant Radiant Barrier Foil. For questions on your specific application, feel free to call us at 888.349.3645, send us a chat, or contact us electronically.

    How much tape do I need?

    1 roll of tape will be needed for every 500 sq ft of product. When installing Solid Radiant Barrier, It's important to tape the seams between adjoining sheets—never use tape to attach the product directly to your structure. Taping the seams creates a vapor barrier when installed properly, and helps ensure the reflective properties of the product. Important: use of tape is not recommended with Perforated Radiant Barrier.

    How does Radiant Barrier Work?

    Radiant barriers reflect radiant heat back towards its source, keeping interior spaces warmer in the winter and cooler in the summer. Radiant heat barriers can be used in a variety of applications and climates, providing more comfort to indoor spaces, while saving you money on energy bills year-round. You can learn more about how Radiant Barriers work here.

    How do I install Radiant Barrier?

    Installation methods will vary, depending on your application. If your structure has exposed studs, the material can be stapled with a staple gun. If you have nothing to staple the product to, choose a spray adhesive like Spray-Lock Multi-Purpose Eco-Friendly Spray Adhesive.

    General tips:

    • With any Radiant Barrier application, there must be air space on at least one side of the material. Learn more about air space requirements here.
    • Never sandwich a radiant barrier between two surfaces without allowing for an air space, otherwise the heat will conduct through the material and will become ineffective. The only exception is Under Concrete Slab applications—due to the nature of these applications, an air space is often not an option.
    • Unless you're insulating an attic, Reflective Insulation Tape is recommended to seal the seams. Never use tape with Perforated Radiant Barrier.
    More information on installation methods can be found under the "Shop by Application" tab in the main menu at the top of this page. Don't hesitate to reach out to our team if you'd like any advice on your specific project. Give us a call at 888.349.3645, send us a chat, or contact us electronically. We are always happy to help!

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