People often ask us if they should be using cork insulation for their heated concrete flooring. We tell them that many contractors & homeowners recommend that you insulate between an existing concrete slab & your new Electric Radiant Floor Heating System. Insulation is not required, but many customers like to install a "thermal break" while they are installing new floor heating. Heat transfers to cold material, meaning warm objects or surfaces transfer heat to cold ones. An Insulating material on top of the slab and under the Electric Radiant Floor Heat elements will slow the transfer of heat from the heating elements into the bottom of the slab and effectively decrease the time it takes your floor warming system to warm the part your floor that matters.
Check out all the different R60 AcoustiCORK purchase options available!
- How R60 Cork helps your floors
- Why R60 AcoustiCORK is the best cork option available
- Testing proves R60 AcoustiCORK's value
- Frequently Asked Questions
Thermal Insulation! AcoustiCORK R60 is known for its ability to add thermal efficiency to most types of floors. It is particularly useful when used under floor heating systems, as R60 helps reduce energy consumption and increase efficiency / lower costs. R60 Thermal resistance provides increased efficiency and is a sustainable natural product.
Unlike most of its synthetic alternative competitors the AcoustiCORK R60 underlayment has the ability to keep its acoustic and thermal insulation performance over many years. The physical structure of cork, with nearly 200 million completely sealed air filled cells per cubic inch makes it a very effective insulating material. This same physical structure also provides cork with the ability to be repeatedly compressed and yet recover nearly 100% of its original shape and size.
Also, don't be misled by inferior cork products sold online for a little less money; don't compromise the integrity of your floor to save a few dollars. Insist on a recognized manufacturer with the history Test results to back up their product.
R60 AcoustiCORK has a direct presence in the countries that produce the raw material
Affiliates (all situated in the cork forest zones) in Portugal, Spain, Morocco and Tunisia, allowing diversification of sources and control of the flow of the raw material
They maintain Local operations for the integrated production of the raw material
Unique centers for the acquisition, selection, classification and standardization of the raw material before its manufacture; this ensures quality throughout the manufacturing process.
Amorim's Research and development is ongoing.
Highly sophisticated Research and Development facilities follow rigorous scientific procedures & ongoing continuous improvement. ISO 9001 Quality Certificate
AcoustiCORK's reputation is unparalled.
AcoustiCORK Products™ are recognized in the building industry as a leading & effective sound control, thermal insulation and crack suppression underlayment used under hard surface floors. Residential and commercial projects throughout the United States, Canada and Europe have used AcoustiCORK™ with excellent success.
AcoustiCORK™ R60 is designed to meet building codes and condominium association requirements for floor/ceiling assemblies using ceramic tile, marble, stone or hardwood floors.
AcoustiCORK™ has been tested in accordance with ASTM standards for acoustical values at Riverbank Acoustical Laboratories, an independent laboratory accredited by the National Bureau of Standards of the U.S. Dept. of Commerce and NVLAP (National Voluntary Laboratory Accreditation Program). Whew! That is a mouthful of agencies.
In the Flooring Industry, the most important test standard is the Robinson Wheel. This is an ASTM test and AcoustiCORK® R60 passed with flying colors for use in ALL residential applications, including CONCRETE SLAB and an even higher commercial rating when used over Concrete Board.
|Bond Strength||C482 Modified||PSI of 80|
|Structural PerformanceWithout CBU||C627-88 (Robinson Wheel)||Residential Rating|
|Structural PerformanceWith CBU||C627-88 (Robinson Wheel)||Heavy Rating|
|Flame Spread||E84-91a||Class "A"|
|Thermal Insulation R60-6mm“ K “ Factor||C177-85 (BTU-inch)||0.32|
|Thermal Insulation R60-6mm“ R “ Factor||C177-85 (Hr-SF-°F-per Inch)||3.125|
Robinson Wheel Testing Details:
- 6mm Gyp-Crete Residential Robinson Test
- CBU 6mm Light Commercial Robinson Test (CBU=Concrete Board Underlayment, i.e. HardiBacker®)
Additional physical testing & certifications
Test data is certified by the following organizations:
- ICBO Evaluation Report Number ER5314
- City Of Los Angeles Research Report RR25323-A
Physical and Mechanical Properties of AcoustiCORK R60
Product Description: Agglomerated cork underlay for increased thermal efficiency & foot comfort of the final floor.
Physical and Mechanical Properties (ISO 7322)
Specific weight: 150-220Kg/m3
Tensile strength (kPa): >200KPa
Durability: Lifetime of the building
Why AcoustiCORK R60 as insulation for electric radiant floor heating?
Amorim Industrial Solutions, manufacturer of AcoustiCORK has the biggest market share in Insulation Cork at 80% Worldwide! That is why Warm Your Floor offers their products exclusively. And, we have a long history together. I first did business with the U.S.A. division in 1985; they offered quality products 25 years ago and still do today.
Will R60 Cork Underlayment "swell" with exposure to moisture and cause finish floor coverings to fail?
NO! Because our cork absorbs almost ZERO water it is very dimensionally stable. When exposed to 100% Relative Humidity conditions for an entire 30 days the dimensional change in our AcoustiCORK products is less than 3%. In the 6mm (1/4”) R60, this would represent an increase in thickness of less than 7 thousands of an inch; about the thickness of a human hair.
Is it safe to use AcoustiCORK under ceramic tiles?
Yes, it is. AcoustiCORK R60 underlayment is safe, tested and designed for use under ceramic tile and stone floors. For over 20 years, satisfied customers have been successfully installing them all over the USA as well as in Europe. AcoustiCORK stops the minor cracks in the concrete from showing up in the tile, provide effective impact sound and thermal insulation and use adhesives and procedures approved by ceramic tile manufacturers. The TCNA (Tile Council of North America) references the product specifications of AcoustiCORK in its Installation Handbook for Direct Bonding Ceramic Tiles to Cork Underlayment (F (1-35-06)
Ecology and sustainability are becoming increasingly important in the USA. Does the company hold any certification?
Cork, the raw material of all AcoustiCORK underlayment, is a gift from Nature. Amorim Cork Composites adopts sustainable development practices that are unparalleled in the cork industry. The company holds a Forest Stewardship Council (FSC) chain-of-custody certificate as well as several quality certificates like the NP EN ISO 9001:2000, the OSHAS 18001: 199 and the Systecode — CIPR. We are currently in the final stage of implementation for the NP EN ISO 14001.
Where can I find detailed installation instructions of the AcoustiCORK R60?
You can read the AcoustiCORK Cork Installation Details Here!