Underlayment Sound Ratings — Tested Assemblies
| Sound Ratings - Tested Assemblies | Underlayment | Insulation | Ceiling Susp. on Chan. | Ceiling Drywall | Floor Coverings Floor erings | Ratings | Test Numbers |
|
Truss Plate Institute |
3/4" (19 mm) |
Yes (blown-in) | Yes | 5/8" (16 mm) |
Vinyl | 57-FSTC | 98.67280.10 |
| 3/4" (19 mm) |
Yes (blown-in) | Yes | 5/8" (16 mm) |
Vinyl | 50-FIIC | 98.67280.1 | |
| 3/4" (19 mm) |
Yes (blown-in) | Yes | 5/8" (16 mm) |
Ceramic | 46-FIIC | 98.67280.12 | |
|
Metal Joist |
3/4" (19 mm) |
3 1/2" (89 mm) |
Yes | 5/8" (16 mm) |
Vinyl | 49-FIIC | 94-2278 |
| 3/4" (19 mm) |
3 1/2" (89 mm) |
Yes | 5/8" (16 mm) |
Carpet and Pad | 51-FSTC | 94-2168.1 | |
| 3/4" (19 mm) |
3 1/2" (89 mm) |
Yes | 5/8" (16 mm) |
Carpet and Pad | 73-FIIC | 94-2168.2 | |
|
SpaceJoist® Metal Web Truss |
3/4" (19 mm) |
3 1/2" (89 mm) |
Yes | 5/8" (16 mm) |
Vinyl | 51-FIIC | 51210-4 |
| 3/4" (19 mm) |
3 1/2" (89 mm) |
Yes | 5/8" (16 mm) |
Mannington 3/8" laminate floating floor over Quietwalk |
54-FIIC | 51210-5 | |
| 3/4" (19 mm) |
3 1/2" (89 mm) |
Yes | 5/8" (16 mm) |
Carpet and Pad | 70-FIIC | 51210-3 | |
| 3/4" (19 mm) |
3 1/2" (89 mm) |
Yes | 5/8" (16 mm) |
Carpet & Tile | 52-FSTC | 51210-1 | |
|
Wood Joist |
3/4" (19 mm) |
Blown-in | Yes | 5/8" (16 mm) |
Hi-Grade Residential Carpet & Cushion |
53-STC/78-IIC | |
| 3/4" (19 mm) |
Blown-in | Yes | 5/8" (16 mm) |
Lo-Grade Residential Carpet & Cushion |
52-STC/81-IIC | ||
| 3/4" (19 mm) |
Blown-in | Yes | 5/8" (16 mm) |
Hi-Grade Commercial Carpet & Cushion |
52-STC/71-IIC | ||
| 3/4" (19 mm) |
Blown-in | Yes | 5/8" (16 mm) |
Med-Grade Commercial Carpet & Cushion |
50-STC/70-IIC | ||
| 3/4" (19 mm) |
Blown-in | Yes | 5/8" (16 mm) |
Bare Floors, No Carpet or Cushion |
50-STC | ||
| 3/4" (19 mm) |
Blown-in | Yes | 5/8" (16 mm) |
Sheet Vinyl | 50-STC | ||
| 3/4" (19 mm) |
Blown-in | Yes | 5/8" (16 mm) |
Vinyl Tile | 52-STC | ||
| 3/4" (19 mm) |
Blown-in | Yes | 5/8" (16 mm) |
Wood Parquet Floor Ceramic Tile |
51-STC | ||
|
Wood Joist |
3/4" (19 mm) |
3" (76mm) Fiberglass |
Yes | 5/8" (16 mm) |
Lo-Grade Residential Carpet & Cushion |
54-STC/76-IIC | |
| 3/4" (19 mm) |
3" (76mm) Fiberglass |
Yes | 5/8" (16 mm) |
Hi-Grade Commercial Carpet & Cushion |
54-STC/80-IIC | ||
| 3/4" (19 mm) |
3" (76mm) Fiberglass |
Yes | 5/8" (16 mm) |
Med-Grade Commercial Carpet & Cushion |
54-STC/82-IIC | ||
| 3/4" (19 mm) |
3" (76mm) Fiberglass |
Yes | 5/8" (16 mm) |
Bare Floors, No Carpet or Cushion |
53-STC |