- Specification Data on Product #8244
- Instructions for Preparation of Subfloor
- Cork Underlayment Installation Instructions
- Cork Underlayment Instructions – Tile Floor Over Radiant Heat on Concrete Slab
- Sound Control For Hard Surface Applications
- Green Building Ratings
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 | ISO7322 | 30 -50% | Recovery 75 |
| 100 psi | |||
| 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 | |
| “R” Factor | 2.6 | 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. | |||