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Concrete Insulation

Please note that you cannot use a regular foil bubble insulation product in a concrete insulation application. When foil comes into direct contact with the cement, especially while it is curing, the foil layer will corrode and destroy the reflective properties of the insulation. This is why EcoFoil developed this patented product - to serve as a superior concrete floor insulation and concrete vapor barrier, but also to serve as a radiant barrier insulation which reflects radiant heat. This bubble insulation product also gives more reflectivity when used in a heated slab than any other concrete insulation product on the market. This will improve slab response times dramatically when used with radiant floors.

See also: How to Perform a Concrete moisture test


Item Description Price
Under Concrete Insulation 300 s.f. image


Under Concrete Insulation 300 s.f. $129.99
1 – 4$129.99
5 – 9$125.00
10 – 19$115.00
20 +$110.00
Under Concrete Insulation 500 sq.ft. image


Under Concrete Insulation 500 sq.ft. $209.99
1 – 4$209.99
5 – 9$200.00
10 – 19$185.00
20 +$175.00
White Insulation Tape - 2'' x 150' image


White Insulation Tape - 2'' x 150' $12.99
1 – 4$11.99
5 – 9$11.00
10 – 19$9.50
20 +$8.00
White Insulation Tape - 3'' x 150' image


White Insulation Tape - 3'' x 150' $16.99
1 – 4$14.99
5 – 9$14.00
10 – 19$12.50
20 +$11.00

Concrete Insulation will increase the comfort level of your home

Concrete floor insulation is imperative to making your home or commercial structure energy efficient and avoiding heat loss. Under Concrete Radiant Barrier Bubble Insulation by EcoFoil is a modern insulation solution for your radiant floor, basement floor, garages, driveways and metal building floors.

Radiant Barrier for under concrete applications

EcoFoil under concrete insulation is superior to traditional, outdated forms of concrete floor insulation such as polystyrene or foam sheets. Rigid insulation concrete products like foam sheeting are easily broken and must be used with an extra vapor barrier, plus standard foam or polystyrene concrete insulation does not stop radiant heat loss or gain. EcoFoil reflective bubble concrete floor insulation products accomplish all of these things as well as providing a barrier for radon. 57% of radiant heat is reflected back to the concrete surface, whether that be a driveway, a basement floor, or a concrete wall - rather than letting the heat seep down into the soil.

Ultra Under Concrete Barrier - (Bubble / Foil / Bubble)

This new insulation over concrete floor product is manufactured with a design that consists of a layer of metalized foil centered between a layer of bubble insulation laminated to each side with a permanent bond. This encapsulates the reflective foil sheet preventing it from being exposed to the ground or the concrete, ensuring the life and performance of the product. Please note that you cannot use a regular bubble foil insulation in an under concrete application, as the concrete will cause the foil surface to degrade. EcoFoil Ultra Under Concrete Bubble Insulation is a Patented product specifically manufactured to withstand the pressure and corrosive nature of concrete and to provide the most reflectivity of any under slab insulation on the market.

Cross section of EcoFoil Ultra Under Concrete Barrier

Benefits of using Under Concrete Reflective Insulation:

  • Eliminates dampness and condensation on concrete
  • Moderates slab temperatures and performs superbly with radiant floors
  • Quick and easy to install
  • Strong 140 PSI compression rate
  • Creates a thermal break between ground and slab
  • Provides and excellent vapor & radon barrier
  • High 85 PSI puncture rate
  • Designed specifically for use in concrete applications and excels with radiant floors
  • Reduces heat loss by up to 57% (Bodycote Testing Lab 4/10/00)

Other Applications

Under Carpet Insulation

The Ultra Under Conrete insulation also works great as under carpet insulation due to its high PSI and outside bubble layers. Just lay the Under Concrete insulation over your concrete floor, or any other floor, and install carpet as usual. This install method provides an R-3.8.
Download a printable installation sheet: Under Carpet Insulation Installation(PDF)