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Double Bubble Insulation from EcoFoil
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Double Bubble Insulation - White/Foil - 4' x 25' (100 sq ft)

Double Bubble Insulation - White/Foil - 4' x 25' (100 sq ft)

SKU: EF2520-48-025
Regular price $69.00
Regular price Sale price $69.00
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Ships May 20 when you order now

Product details:

Double Bubble insulation is a dependable method for reflecting radiant heat and eliminating condensation in tight spaces like garages, sheds, doghouses, vehicles, and RV's. It dual layer of bubbles forms an air pocket, effectively preventing the flow of hot and cold temperatures through the material, minimizing the accumulation of condensation in different weather conditions. For best results, seal all seams with insulation tape to create a vapor barrier.


Ecofoil Double Bubble Reflective Insulation is made from a double layer of polyethylene bubbles, sandwiched between two highly reflective surfaces with a metalized coating. This product is classified as Class 1/Class A in accordance with the ASTM-E84-09 fire test standard. The product was mounted in accordance to ASTM-E2599-08. It is lightweight, durable, and is easy to handle 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 25 ft (100 square feet per roll)

~1/4" thick

Spec Sheets: Download Spec Sheet
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Double Bubble Insulation from EcoFoil
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Customer Reviews

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  • Fast, easy installation

    Thin, lightweight bubble foil insulation makes it easy to handle and install in your building’s walls, roof, and ceiling. Cut the foil insulation to size using a utility knife and seal up the seams using insulation tape.

  • Installing Bubble Insulation radiant barrier in a metal building

    Improves performance of traditional insulation

    While double bubble foil insulation has little to no R-value, its reflective properties contribute to the overall effectiveness of fiberglass or spray foam insulation.

  • Prevent condensation on metal building

    Prevent condensation buildup

    Double bubble foil insulation also acts as a vapor barrier when seams are all sealed with tape. Protect your metal building or pole barn from frost and condensation buildup.

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Double Bubble Insulation - White/Foil - 4' x 25' (100 sq ft)

Frequently Asked Questions

Should I choose Single Bubble or Double Bubble Reflective Insulation?

Generally speaking, you should install Double Bubble in colder, extreme climates with cold winters (Northern US). Double Bubble Reflective Insulation will help prevent the formation of frost and condensation when temperatures are very cold on one side of the material, and warm on the other. The larger these temperature differences are, the greater the risk of condensation. If you’re not as concerned about condensation, Single Bubble Insulation could work for your application.

What do the bubbles do?

The layer of bubbles provides a thermal break between hot and cold air, and helps eliminate condensation from forming in your structure. Double Bubble has two layers of bubbles for extra condensation prevention. Double Bubble Reflective Insulation is typically used in the northern states where temperature differences inside vs. outside your structure are extreme, typically during cold, frigid winters.

How much tape do I need?

1 roll of tape will be needed for every 500 sq ft of reflective insulation. 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 insulation.

Which tape do I choose?

Should I choose a white finish or a foil finish?

Some customers prefer the white finish as a visual preference. Both White and Foil finishes reflect radiant heat equally well.

How do I install Double Bubble Insulation?

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. 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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