D45
Floating Floor Damping System
The D45 Floating Floor Damping System uses SG-FD50/25 Floor Damping Blocks to support an independent floor with a wool-filled cavity, 20 mm SG-F12-2 composite insulation board and self-leveling screed.
The INSUL prediction is IIC 60, with approximate sound insulation of 32 dB ±5 dB and a thickness of about 70 mm. The model uses 50 mm rubber blocks and a 6 + 2 + 12 mm fibre-cement/rubber/fibre-cement panel. The specified SG-F12-2 board uses this 20 mm construction; the prediction applies to the complete modelled floor assembly.
Floor Soundproofing for Footstep and Impact Noise
For homes, condominiums and commercial spaces, footstep noise should be assessed as part of the complete floor construction. The D45 floating floor system separates the new floor layer from the supporting slab using damping blocks. Suitability depends on available floor height, loading, finishes and sound transmission through adjoining structures. The published INSUL prediction applies to the modelled assembly, not a guaranteed on-site result.
Exploded Mounting Structure
6 layers · top to bottom
Layer Build-up
- 1
Floor Finishes - Carpet, Tiles and etc.
- 2
Self-Leveling Cement
- 3
SG-F12-2 Composite Sound Insulation Board
1200 × 1200 × 20 mm
- 4
Min. 80 kg/m³ Mineral / Synthetic Wool
600 × 1200 × 50 mm
- 5
SG-FD50/25 Floor Damping Block
150 × 150 × 50/25 mm
- 6
Floor Slab
Layer Specifications
| Layer | Product | Specification | Application |
|---|---|---|---|
| Damper | Floor Damping Block | 150 × 150 × 50/25 mm | Break sound bridges |
| Absorption | Mineral Wool / Synthetic Wool | 600 × 1200 × 50 mm | Uses sound absorption to enhance insulation |
| Damper | SG-F12-2 Composite Sound Insulation Board | 1200 × 1200 × 20 mm | Greatly improves sound insulation performance |
| Protection | Cement Self-Leveling | - | Protect sound-insulation and damping layer |
System Description
Panel 1
1 × 100 mm Concrete
Frame
Rubber Block (50 mm), spacing 600 mm, cavity width 50 mm + 50 mm Mineral Wool (80 kg/m³)
Panel 2
1 × 6 mm Fibre Cement + 1 × 2 mm Rubber + 1 × 12 mm Fibre Cement
Details
Panel size 2.4 m × 2.4 m · Partition surface mass 242 kg/m²
Acoustic Performance
Sound Insulation Prediction
All STC, OITC and acoustic performance figures are estimated / simulated values (INSUL Sound Insulation Prediction v9.0.22, © Marshall Day Acoustics 2017) intended solely as design references - not guaranteed field performance. Final results depend on site conditions, construction details and installation quality, beyond the control of INSUL.
Products Used in This System
Specify the D45 System
For Your Project
Our technical team can adapt this system to your site conditions and provide a full installation specification and quotation.
