SKU: EF1620-48-125

Ultra CBF Under Slab Insulation - 4' X 125' (500 sq ft)

Ultra CBF Under Slab Insulation - 4' X 125' (500 sq ft)!

Skip to product information
1 of 10

Continue Browsing

Bubble Foil Insulation

SKU: EF1620-48-125

Ultra CBF Under Slab Insulation - 4' X 125' (500 sq ft)

$279.00
 
Request Bulk Pricing
Request Bulk Pricing
Fill out the form below or give our sales consultants a call at 866-421-4854.

Specifications

Length: 125'
Thickness: 1/4"
Width: 4'
Description

EcoFoil Under Slab Insulation is a patented solution designed specifically for concrete slab and radiant floor installations. Built for demanding below-grade environments, this lightweight material conforms easily to the ground and avoids the voids or air pockets common with thicker foam products. At 1/4" to 5/16" thick, it features a metalized reflective layer fully laminated between two durable polyethylene bubble sheets. With a compression strength of 140 PSI, it delivers dependable support under concrete without compromising structural performance.

The fully encapsulated design protects the reflective layer from direct contact with soil and moisture—two conditions that can corrode exposed foil in traditional bubble insulation or radiant barriers. By positioning the reflective sheet between bubble layers, the product maintains the necessary airspace for reflectivity while shielding the foil from deterioration during slab curing or long-term ground exposure.

Reflective Thermal Control for Radiant Heat Slabs

EcoFoil Under Slab Insulation reflects 57% of radiant heat back toward the slab, reducing heat loss into the soil and improving radiant system efficiency. Beyond thermal benefits, it also provides vapor and radon protection, adding critical environmental control below concrete floors.

Encapsulated, High-Strength Design for Below-Grade Applications

Unlike standard bubble or foil products that degrade when buried, this patented construction ensures long-term performance in underground installations. The insulation acts as a stable, continuous layer when seams are taped—supporting slab integrity while maintaining a reliable thermal break.

Key Features

  • Patented encapsulated design: Protects the reflective layer from soil acidity and concrete curing moisture.
  • Reflects 57% of radiant heat: Improves efficiency in radiant heat and heated slab systems.
  • 140 PSI compression strength: Strong enough for slab pours without crushing or deformation.
  • Lightweight & conformable: Lays flat to grade without creating voids or weak spots.
  • Vapor & radon barrier: Adds critical below-slab protection beyond thermal performance.
  • Durable bubble-core structure: Maintains airspace needed for reflectivity and long-term function.
  • Seams must be taped: Use 3" White Seam Tape to create a continuous protective layer.
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

Be the first to write a review
0%
(0)
0%
(0)
0%
(0)
0%
(0)
0%
(0)