Which ROCKWOOL acoustic insulation model is best for excellent sound insulation
Sound insulation values for ROCKWOOL walls
Sound insulation walls are typically installed as lightweight walls (Drywall) using C-line and U-line frames with acoustic insulation placed in the wall cavities and covered with gypsum board. Before installing sound insulation walls, we want walls that provide maximum sound insulation, but we don’t know which wall configuration would be best. We have therefore created a guide for selecting sound insulation wall configurations
This will be gypsum walls combined with ROCKWOOL rock wool insulation models Safe ‘n’ Silent Pro 330 (density 40 kg/m³), Safe ‘n’ Silent Pro 350 (density 60 kg/m³) and Safe ‘n’ Silent Pro 370 (density 80 kg/m³) at thicknesses of 50 mm, 75 mm and 100 mm.
*STC values are approximate values that indicate how many decibels (dB) the wall system can reduce sound
3T Recommendations
You can read about acoustic insulation in this article
You can read about ROCKWOOL rock wool insulation properties in this article
ROCKWOOL sound insulation walls using 9 mm thick gypsum board
Lightweight wall with ROCKWOOL insulation covered with 9 mm gypsum board single layer
Sound insulation wall configurations using 9 mm thick gypsum board
|
ROCKWOOL Insulation |
Gypsum Board | STC |
|---|---|---|
| Safe ‘n’ Silent Pro 330 50 mm thick |
9 mm |
35 |
| Safe ‘n’ Silent Pro 350 50 mm thick |
9 mm |
36 |
| Safe ‘n’ Silent Pro 370 50 mm thick |
9 mm |
36 |
| Safe ‘n’ Silent Pro 330 75 mm thick |
9 mm |
36 |
| Safe ‘n’ Silent Pro 350 75 mm thick |
9 mm |
37 |
| Safe ‘n’ Silent Pro 370 75 mm thick |
9 mm |
37 |
| Safe ‘n’ Silent Pro 330 100 mm thick |
9 mm |
40 |
|
Safe ‘n’ Silent Pro 350 100 mm thick |
9 mm | 41 |
|
Safe ‘n’ Silent Pro 370 100 mm thick |
9 mm | 41 |
ROCKWOOL sound insulation walls using 12 mm thick gypsum board
Lightweight wall with ROCKWOOL insulation covered with 12 mm gypsum board single layer
Sound insulation wall configurations using 12 mm thick gypsum board
|
ROCKWOOL Insulation |
Gypsum Board | STC |
|---|---|---|
| Safe ‘n’ Silent Pro 330 50 mm thick |
12 mm |
40 |
| Safe ‘n’ Silent Pro 350 50 mm thick |
12 mm |
40 |
| Safe ‘n’ Silent Pro 370 50 mm thick |
12 mm |
40 |
| Safe ‘n’ Silent Pro 330 75 mm thick |
12 mm |
42 |
| Safe ‘n’ Silent Pro 350 75 mm thick |
12 mm |
42 |
| Safe ‘n’ Silent Pro 370 75 mm thick |
12 mm |
43 |
| Safe ‘n’ Silent Pro 330 100 mm thick |
12 mm |
46 |
|
Safe ‘n’ Silent Pro 350 100 mm thick |
12 mm | 47 |
|
Safe ‘n’ Silent Pro 370 100 mm thick |
12 mm | 48 |
ROCKWOOL sound insulation walls using 2 layers of 9 mm thick gypsum board
Lightweight wall with ROCKWOOL insulation covered with 9 mm gypsum board double layer
Sound insulation wall configurations using 2 layers of 9 mm thick gypsum board
|
ROCKWOOL Insulation |
Gypsum Board | STC |
|---|---|---|
| Safe ‘n’ Silent Pro 330 50 mm thick |
9 mm x 2 |
49 |
| Safe ‘n’ Silent Pro 350 50 mm thick |
9 mm x 2 |
49 |
| Safe ‘n’ Silent Pro 370 50 mm thick |
9 mm x 2 |
50 |
| Safe ‘n’ Silent Pro 330 75 mm thick |
9 mm x 2 |
51 |
| Safe ‘n’ Silent Pro 350 75 mm thick |
9 mm x 2 |
52 |
| Safe ‘n’ Silent Pro 370 75 mm thick |
9 mm x 2 |
53 |
| Safe ‘n’ Silent Pro 330 100 mm thick |
9 mm x 2 |
55 |
|
Safe ‘n’ Silent Pro 350 100 mm thick |
9 mm x 2 | 56 |
|
Safe ‘n’ Silent Pro 370 100 mm thick |
9 mm x 2 | 57 |
ROCKWOOL sound insulation walls using 2 layers of 12 mm thick gypsum board
Lightweight wall with ROCKWOOL insulation covered with 12 mm gypsum board double layer
Sound insulation wall configurations using 2 layers of 12 mm thick gypsum board
|
ROCKWOOL Insulation |
Gypsum Board | STC |
|---|---|---|
| Safe ‘n’ Silent Pro 330 50 mm thick |
12 mm x 2 |
54 |
| Safe ‘n’ Silent Pro 350 50 mm thick |
12 mm x 2 |
55 |
| Safe ‘n’ Silent Pro 370 50 mm thick |
12 mm x 2 |
56 |
| Safe ‘n’ Silent Pro 330 75 mm thick |
12 mm x 2 |
57 |
| Safe ‘n’ Silent Pro 350 75 mm thick |
12 mm x 2 |
58 |
| Safe ‘n’ Silent Pro 370 75 mm thick |
12 mm x 2 |
58 |
| Safe ‘n’ Silent Pro 330 100 mm thick |
12 mm x 2 |
60 |
|
Safe ‘n’ Silent Pro 350 100 mm thick |
12 mm x 2 | 60 |
|
Safe ‘n’ Silent Pro 370 100 mm thick |
12 mm x 2 | 61 |
Installation method for acoustic insulation walls using ROCKWOOL rock wool insulation
(Image - Setting up lightweight wall frame with spacing of 40 cm or 60 cm)
1. Set up the frame with spacing of 40 cm or 60 cm to create cavities for acoustic insulation
(Image - Pressing insulation panels into the wall frame)
2. Insert insulation panels into the wall frame cavities
(Image - Compressing insulation panels into the wall frame)
3. Press the panels into the wall cavities
(Image - Allowing insulation to expand back)
4. Release the panels to allow the acoustic insulation to expand
(Image - After installing insulation, cover with gypsum board)
5. Install gypsum board with screws to complete the installation
Recommended sound insulation values table for different room types
| Room Type |
STC |
Recommended Wall Configuration |
|---|---|---|
| Living Room |
30 |
Gypsum Board 9 mm x 1 Safe ‘n’ Silent Pro330 thk. 50 mm. Gypsum Board 9 mm x 1 |
| Office, Bedroom | 44 | Gypsum Board 12 mm x 1 Safe ‘n’ Silent Pro330 thk. 100 mm. Gypsum Board 12 mm x 1 |
| Bathroom | 38 | Gypsum Board 9 mm x 2 Safe ‘n’ Silent Pro330 thk. 50 mm. Gypsum Board 9 mm x 2 |
| General Office | 38 | Gypsum Board 9 mm x 2 Safe ‘n’ Silent Pro330 thk. 50 mm. Gypsum Board 9 mm x 2 |
| Private Office | 44 | Gypsum Board 12 mm x 1 Safe ‘n’ Silent Pro330 thk. 100 mm. Gypsum Board 12 mm x 1 |
| Executive Office |
50 |
Gypsum Board 9 mm x 2 Safe ‘n’ Silent Pro330 thk. 75 mm. Gypsum Board 9 mm x 2 |
| Hotel Room |
55 |
Gypsum Board 12 mm x 2 Safe ‘n’ Silent Pro350 thk. 50 mm. Gypsum Board 12 mm x 2 |
| Music Room |
60 |
Gypsum Board 12 mm x 2 Safe ‘n’ Silent Pro330 thk. 100 mm. Gypsum Board 12 mm x 2 |
| Cinema |
60 |
Gypsum Board 12 mm x 2 Safe ‘n’ Silent Pro330 thk. 100 mm. Gypsum Board 12 mm x 2 |
Approximate material costs
- Gypsum board prices referenced from Furling line
- ROCKWOOL insulation prices referenced from 3T-INSULATION
