CORK UNDERLAYMENT

Published Specs for #8244

Product Data –
Production Class: Composition Cork Underlayment

PROPERTY	TEST NORM	PERFORMANCE
Density	ISO7322	10/13 pcf
Tensile Strength	ISO7322	200 KPa
Compression 100 psi	ISO7322	30 -50%	Recovery 75
Boiling Fluid Immersion Tests to ISO7322
Boiling Water		Pass
Boiling HCL		Pass
Mildew Resistance Test		Pass
Thermal Conductivity
“K” Factor		40	btu/sf/h/F/inch for 1/4"
“R” Factor		2.6	btu/sf/h/F/inch for 1/4"
Acoustical properties under hardwood floors
Absorbs 84% of reflected sound
Absorbs 69% of transmitted sound
Acoustical properties under ceramic tiles
Impact Noise Rating (INR)		+7
Impact Insulation Class (IIC)		58
Sound Transmission Class		55

Meets or Exceeds Specifications: HH-C-576 Type II, MIL-C-15116C Type II. This material has a shelf life of 1 year from date of manufacture when protected from environmental extremes.

The values shown represent current production and may vary under different conditions.

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