Skip to product information
1 of 11

Double Bubble for use in Basement, Metal Building, Crawl Space, Cathedral Ceiling, and Tiny Home/Yurt applications

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

Most effective at preventing condensation in colder climates

Regular price $199.00
Regular price Sale price $199.00
Sale Sold out
shipping truck, lead time icon

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 metabolized 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.

Shipping Info:

EcoFoil ships free via FedEx Ground. Products ship same-day on orders received before 4pm CT and typically arrive between 1-4 days. Expedited shipping options available. Call us at 888.849.3645 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

Customer Reviews

Based on 43 reviews
86%
(37)
9%
(4)
2%
(1)
2%
(1)
0%
(0)
C
Charles Elliott
Steel 18x30 Shed

Had this installed on a 18x30 steel metal building/shed. Builder installed between framing and sheeting. I had them leave one wall uninsulated because I thought I was going to add something else. I added the double bubble after and I could tell the difference. If it made a difference on one wall. I definitely made a difference on the other 3 and the roof. At one point I could not even touch the uninsulated wall in the middle of a sunny day. After installation, the wall was warm but nothing like without the insulation. I would recommend this in a heartbeat for quality, ease of use and price. If your installing a metal building, I would not skip this.

K
Ken Hilgenberg

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

E
Elizabeth Kirby
Appears to be an effective insulation

I have a lot of area to cover and have hardly started. Looking at the quality of the product I am very hopeful it will do the job.

M
Melvin Sutton

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

I
Isaiah Allen

Speedy delivery and good product. We will most likely purchase again and I 10/10 recommend.

Shop Bubble Foil Insulation

  • Free Shipping from EcoFoil

    Free, Fast Shipping

    This product ships free via FedEx Ground. Expedited shipping options are also available.

    Shipping and Returns 
  • EcoFoil Customer Service - Product Help and Installation tips for radiant barrier insulation

    Product Expertise

    Questions about Double Bubble? We're here to help with installation tips, quantity estimation, and bulk pricing.

    Contact Support