Canadian Flooring is a Toronto based distributor & importer of top quality hardwood flooring. Retailers, building contractors, flooring installers, architects and interior designers have come to depend upon Canadian Flooring for service and advice not usually available from other suppliers. We search all over the world for the best products and prices to serve homeowners, builders and contractors in order to meet their growing demand.

cork - underlayment

QuietCORK™ Acoustical Products

All QuietCORK™ products are formulated from specific sized natural cork grains to meet or surpass sound control standards and requirements as specified by building codes, condominium associations, architects, and other governing agencies. QuietCORK™ is produced from the correct mix of both large and small natural cork grains compressed to an optimal medium/low density. This combination of grains and ideal density results in the best acoustical sound control barriers when used in conjunction with assorted surface floors (hardwood, parquet, ceramic, laminate, marble, slate, stone or floating floors). QuietCORK™ materials have been tested for their acoustical properties.

...is a non-toxic, natural, environmentally friendly renewable resource.
...is specially formulated from natural cork grains in a density to maximize sound control benefits.
...is a naturally resilient underlayment and provides excellent compressibility and recoverability.
...provides thermal insulation and stress crack protection for floor coverings
...substantially exceeds established standards and sound-deadening requirements.
...has been both field tested and laboratory tested by accredited agencies with officially certified results.

SPECIFICATIONS
QuietCORK™ Material Specifications

MATERIAL: Natural Composition Cork

STANDARD RANGE: Underlayment / Acoustical / Sound Control / Stress Crack Protection / Environmental Insulation

BINDER: Polyurethane

GRANULE SIZE: 1 - 4mm

TYPICAL VALUES:

Density Minimum
Kg/m3 (pcf) 184 (11.5)

Compression % 20 - 50

Recovery % up to 95

Tensile Strength (*)
Kpa (psi) L - 414 (60)
T - 276 (40)

* L - Test on the longitudinal way
T - Test on the transversal way

QuietCORK™ in 6mm thickness exceeds sound-deadening requirements for "floors separating living units" such as in apartment buildings, condominiums, and offic

Sound Ratings For QuietCork™ Underlayment

Illustration A:	6mm QuietCORK™ on 6" concrete slab

Result Analysis:	The concrete slab has a fixed rating of 27 dB. Affixing 6mm of QuietCORK™ to the concrete slab improves the overall IIC rating to 50 and the STC rating to 51.
Illustration B:	6mm QuietCORK™ on 6" concrete slab with suspended ceiling and floor covering of choice.

Result Analysis:	The concrete slab has a fixed rating of 27 dB. Affixing 6mm QuietCORK™ to the concrete slab improves the overall IIC rating to 50 and the STC rating to 51 (see illustration A). Adding floor covering may slightly alter the ratings depending on floor type. Adding a suspended ceiling unit will increase the ratings significantly, generally by an average of 14 dB depending on unit type. See the Interpretation and Cautionary Note above.

Table 1:

Concrete Subfloor	QuietCORK™	Suspended Ceiling	Sound Ratings IIC	Sound Ratings STC
6" slab	--	--	27	27
6" slab	6mm	--	50	51
6" slab	6mm	yes	64	65