SKU: EF2222-24-125

24" x 125' Between Joist Insulation w/ Staple Tabs Foil/Double Bubble/Foil (250 sq. ft.)

24" x 125' Between Joist Insulation w/ Staple Tabs Foil/Double Bubble/Foil (250 sq. ft.)!

1 10

Continue Browsing

Bubble Foil Insulation
SKU: EF2222-24-125

24" x 125' Between Joist Insulation w/ Staple Tabs Foil/Double Bubble/Foil (250 sq. ft.)

$132.00
 
Request Bulk Pricing
Request Bulk Pricing
Ships Dec 26 when you order now
Fill out the form below or give our sales consultants a call at 866-421-4854.

Widths:

16" 24"

Specifications

Finish: Foil/Foil
Length: 125'
Thickness: 1/4"
Width: 24"
Description

EcoFoil Floor Joist Insulation is engineered to reduce radiant heat transfer and help prevent condensation in floor and wall cavities. Built with two layers of polyethylene bubbles bonded to reflective metalized surfaces, this 1/4"–5/16" thick insulation delivers 96% reflectivity and just 4% emissivity—meaning only a small fraction of radiant heat passes through. Instead of slowing heat movement like traditional insulation, it reflects heat away from the surface to improve comfort and energy efficiency. When seams are taped, it also serves as a vapor barrier to help protect framing materials from moisture and mold.

This 24" wide insulation is designed to fit standard 24" on-center floor joists or studs. Lightweight and easy to handle, each piece includes 3/4" staple tabs on both sides for fast, secure installation.

High-Reflectivity Insulation for Joists & Wall Cavities

Floor Joist Insulation is ideal for applications where radiant heat reduction is needed beneath floors, in basement ceilings, or in utility areas. Its double-bubble structure creates an insulating air layer while the reflective surfaces direct heat away from the building envelope. This makes it an effective complement to traditional insulation in areas requiring improved thermal control.

Lightweight, Easy-to-Install Design for 24" On-Center Framing

The pre-sized 24" width fits standard framing without trimming, and the integrated staple tabs simplify installation. The material is clean to handle, flexible enough for tight spaces, and durable enough to resist tears during installation or maintenance.

Key Features

  • Double-bubble radiant insulation: Reflects 96% of radiant heat and emits only 4%.
  • Helps prevent condensation: Acts as a vapor barrier when seams are taped.
  • Sized for 24" on-center framing: Ideal for floor joists and stud cavities.
  • Lightweight & easy to install: Includes 3/4" staple tabs for quick fastening.
  • Durable polyethylene construction: Resists tears and holds up during installation.
  • Improves comfort & efficiency: Reduces radiant heat transfer beneath floors and in utility spaces.
  • Works with traditional insulation: Enhances overall system performance when R-value is required.
More
View full details
× WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects and other reproductive harm. For more information visit: www.P65Warnings.ca.gov.

Continue Browsing

Bubble Foil Insulation

× WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects and other reproductive harm. For more information visit: www.P65Warnings.ca.gov.

Customer Reviews

Based on 19 reviews
95%
(18)
5%
(1)
0%
(0)
0%
(0)
0%
(0)
T
Thomas Deyarmin
Garage

used in my 2 car garage installed on the ceiling made a huge difference in retaining the heat great product

A
Arnold W.
Great insulation

Good insulation for fitting between roof joists.

P
Philip Kronholm
Ecofoil

Love it. Easy to work with. And has a good R-value.

D
David Eliason
So far OK but too soon to know

I Installed on an enclosed side porch (18 x 7 feet) with a 12-inch uninsulated space between the ground and the floor, not accessible without ripping out the floor, which I didn't want to do. I have two inches of clearance on top of the old floor before it starts to interfere with doorway clearances. In the winter the floor, and the floor and the room itself, is cold despite wall and ceiling insulation, A friend said he had used an eco foil-like product in a similar situation with good results. So, I put in two layers of Eco Foil directly on the old floor and taped all the seams. Then added j1 inch high joists, 3/8 inch plywood subfloor and new 3/4 inch hardwood flooring from Lowes. I'd guess by January I will know if the effort was worthwhile. Even if not, the new hardwood floor is a big improvement over the old existing floor.

N
Nathan Gulbrandson
Radiant floor heat

Installed over pex radiant floor heat and it helped tremendously! Awesome product.

123
  • Our footprint

    We are on a mission to expand our national reach—offering more product selection and faster delivery times. So far we’ve made remarkable progress in our expansion efforts, effectively doubling our capacity by adding a new 47,000 sq. ft. warehouse in Simpsonville, South Carolina, in addition to our existing 60,000 sq. ft. facility in Urbana, Iowa.

  • Our experience

    We pride ourselves on delivering a user-friendly, high quality experience online and over the phone. Our knowledgeable team of experts is readily available via phone to assist with product questions and custom pricing inquiries. We’re available Monday thru Friday from 7:00 AM – 5:00 PM CST. We look forward to supporting you on your next job.

  • Proud distributor

    We partner with trusted manufacturers in the fasteners industry to bring our customers a selection of over 10,000 different products. Fasteners Plus is one of only four Certified Platinum E-Commerce Vendors of Simpson Strong-Tie products, one of the largest suppliers of high-quality structural building products in the world.