Products: Floor Underlayment
Acoustical Data for WECU UnderlaymentGUIDELINES || WECU CHARACTERISTICS || WECU MAIN PAGE || INSTALLATION
WECU on Wood Joist - Light Weight Concrete Floor System *
| TEST REFERENCE | SUBFLOOR | Susp. Ceiling | WECU | Floor Covering | STC | IIC | INR |
| RAL-TL91-95 RAL-IN91-3 | 1.5" light wt concrete on 5/8" plywood | NO | Soundless+ | Ceramic Tile | 58 | 52 | N/A |
| RAL-TL91-89 RAL-IN91-4 | 1.5" light wt concrete on 5/8" plywood | YES | Soundless+ | Ceramic Tile | 59 | 56 | N/A |
WECU on Concrete Slab **
| TEST REFERENCE | SUBFLOOR | Susp. Ceiling | WECU | Floor Covering | STC | IIC | INR |
| CK214.0211 | 6" CONCRETE | NO | Soundless+ | Tile | 56 | 53 | +2 |
| CK214.0211 | 6" CONCRETE | YES | Soundless | Tile | 56 | 63 | +12 |
| CK8511.02A | 6" CONCRETE | YES | Soundless | Tile | 56 | 56 | +5 |
| I-20581-0228 | 6" CONCRETE | NO | Soundless | Hardwood | 56 | 52 | +2 |
| I-20580-0228 | 6" CONCRETE | YES | Soundless | Hardwood | 56 | 59 | +8 |
| Standard Building Code | 50 | 50 | 0 |
*Tests performed by Riverbank Acoustical laboratories in explicit conformity with ASTM Designations E90-90, E413-87, E492-90, E989-89 and E413-87. **Tests using tile performed by Cedar Knolls Acoustical Labs in explicit conformity with ASTM Designations E492-86, E492-77, E989-84. Tests using hardwood Flooring, performed by Armstrong Acoustics Laboratory in explicit conformity with ASTM designations E989-89 and E492-90STC ratings based on tests performed on bare 6" slab.