Whisper Step®
Whisper Step® acoustical underlayment features unmatched, high-density support under luxury vinyl flooring. Whisper Step® provides a significant reduction in impact noise and can be used over most substrates.
Applications
- MLF/LVT/Rigid Core with attached back
- Laminate
- Sheet Vinyl
- Engineered hardwood
- Solid hardwood
Benefits
- Noise Guard
Reduces impact and airborne noise in-room and between floors. Reduces up to 10 decibels of in-room noise and an overall improvement between floors of 25%. - Block-out® Moisture Guard
Prevents spills from getting into subfloor and allows moisture vapor to escape from beneath. - Mold & Mildew Guard
Fresh Dimension® antimicrobial works to inhibit the growth of mold, mildew, and odor-causing bacteria. - Comfort
Makes hard-surface flooring more enjoyable. - Support
The class leading extreme density not only resists compression but will perform for the life of the floor. - Easy Installation
Lays flat and helps mask minor subfloor irregularities; can be used above and below grade.
| Composition: | Made of High-Density Synthetic Rubber | |
|---|---|---|
| Density: | 62 lbs/ft³ or 42 oz/yd² | |
| Shore A Hardness: | 70 ASTM D2240 | |
| IFD @ 25%/65%: | 677.2 lbs/5,000+ lbs | |
| Thickness: | 0.056″ (1.42 mm) | |
| Color: | Green | |
| R-Value: | 0.02 | |
| Moisture Barrier: | Block-Out® Moisture Guard | |
| Permeance*: | 1.151 ASTM E96 | |
| Water Vapor Emission: | 0.252 lbs/1000 ft²/24 hrs ASTM E96 | |
| Castor Durability Test: | Passes 25,000 Cycles** | |
| Product Codes: | BM0042 | BM0040 |
| Dimensions: | 36″ x 33.33′ | 54″ x 44′ |
| Ft²/Roll: | 100 | 200 |
| Yd²/Roll: | 11.11 | 22.22 |
| Roll Weight: | 29 lbs | 58 lbs |
| Impact Insulation Class (IIC): | 73 |
|---|---|
| HIIC: | 88 |
| ΔIIC | 22 |
| Sound Transmission Class (STC): | 64 |
| Indoor Air Quality: | Passes California Section 01350 for low VOC emissions |
|---|---|
| Antimicrobial: | Yes |
Footnotes
- * Conduct moisture tests in accordance with flooring manufacturer installation guidelines and requirements
- ** Passes Castor Durability Test for 25,000 cycles when tested under minimum of 3 mm double-glued luxury vinyl plank and minimum 3.2 mm floating-click
- Shore A Hardness: ASTM D2240
- IFD: ASTM D3574
- Permeance: ASTM E96
- IIC: ASTM E492-09 / ASTM E989-06
- Δ IIC: ASTM E2179-03
- STC: ASTM E90 / ASTM E413-10
