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Bubble Foil Insulation from EcoFoil
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Double Bubble for use in Basement, Metal Building, Crawl Space, Cathedral Ceiling, and Tiny Home/Yurt

Double Bubble Insulation - Foil/Foil - 4' x 125' (500 sq ft)

Double Bubble Insulation - Foil/Foil - 4' x 125' (500 sq ft)


SKU: EF2220-48-125

Reflects heat and controls condensation in extreme/colder climates

Regular price $199.00
Regular price Sale price $199.00
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Product details:

EcoFoil Double Bubble Foil Insulation is primarily used in pole barnsmetal buildingsbasement wallscrawl spaces, and storage units located in moderate and colder climates. Double bubble insulation combines the heat-shielding properties of solid radiant barrier with two layers of polyethylene bubbles, which acts as a built-in air gap that reduces contact between temperatures on either side of the product. The double layer of bubbles effectively combats the formation of frost and condensation that can occur when temperature differences are extreme on either side of the material. It's very thin (approximately 1/4"), lightweight, and installs easily with minimal equipment. 

A radiant barrier and vapor barrier, all in one product

Not only does Double Bubble Insulation reflect radiant heat, when properly installed with tape it also acts as a vapor barrier, preventing the passage of moisture and other unwanted particles which can cause mold. In order to establish a vapor barrier, you must tape all seams and joints to prevent air passage, keeping moisture and other particles from passing through. 

Radiant barrier vs traditional insulation

Radiant barrier bubble insulation works differently compared to traditional insulation like fiberglass and spray foam.

  • Traditional insulation works to absorb heat and is measured by R-value. The higher the R-value, the thicker the material and the more heat it can absorb. 
  • Radiant barrier bubble insulation, on the other hand, reflects heat back to its source (whether that's your furnace or the sun.)

When used together, these two insulation types can provide a highly effective one-two punch that will keep your building warmer in the winter and cooler in the summer.

R-Value Of Radiant Barriers

Because these two insulation types have different purposes, their effectiveness is measured differently. Rather than rating by R-value, all radiant barrier products are measured by their reflective and emissive properties. When installed properly with an air gap on one side of the product, double bubble insulation will reflect heat away from your building in the summer, and keep heat in during the winter.

There are some companies out there posting big R-Value numbers for their radiant barriers, but those numbers are rating the entirety of the system—including the product, air gap, and other building materials. In reality, most radiant barriers by themselves have little to no R-Value. If you need to satisfy a building code of a specified R-Value, we recommend the use of a traditional insulation in conjunction with our radiant barrier in order to meet code. For more information on R-values, see our How It Works page or contact a member of our friendly service team via chat, by calling (888) 349-3645, or using the form here.  

EcoFoil Double Bubble Foil Insulation is not to be used under concrete slabs. For under concrete slab or radiant floor insulation applications, we recommend EcoFoil Under Slab Insulation.

Materials:

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.

Dimensions:

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

~1/4" thick

Spec Sheets: Download Spec Sheet
View full details
Bubble Foil Insulation from EcoFoil
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Customer Reviews

Based on 62 reviews
85%
(53)
10%
(6)
2%
(1)
2%
(1)
2%
(1)
C
Customer
It is good stuff

I like it . It has quit a lot of applications .

S
Step 2 Incorporated
Barn= da minimum

Material handles well, keeps shape and easy to staple; Very reflective and waterproof

J
JoEllen Woolsey
Very satisfied

Easy to install, works for our needs perfectly! Getting ready to order another roll!

w
walter bahr
Awesome

That’s exactly what I needed for my 17 foot windshield in my RV. I did double face it to give it more rigidity, but it’s working perfectly.

B
Bo
Ecofoil

Good stuff easy to install

Double Bubble Insulation - Foil/Foil - 4' x 125' (500 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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