Acoustilay Performance Data
Airborne Sound Insulation of Timber Floors
The building regulations require a figure for DnTw + Ctr of 43dB or higher for airborne noise between dwellings within a converted property.
The higher the figure the better the insulation.
| DnTw | DnTw + Ctr | |
| Acoustilay 15 | 55Db | 48Db |
| Acoustilay 8 | 50Db | 43Db |
Impact Sound Insulation of Timber Floors
The Building Regulations require a figure for LnTw of 64dB or lower for impact noise between dwellings within a converted property. The lower the figure the better the insulation against impact noise.
| LnTw | |
| Acoustilay 15 | 37Db |
| Acoustilay 8 | 39Db |
| Acoustilay 3 | 39Db |
Impact Sound Insulation of timber floors with 7mm laminated finished timber floor laid onto Acoustilay
The Building Regulations require a figure for LnTw of 64dB or lower for impact noise between dwellings within a converted property. The lower the figure the better the insulation against impact noise.
| LnTw | |
| Acoustilay 15 | 63 Db |
Imapct Sound Improvement Index of Concrete Floors
Δ Lw is a measurement of how much the impact noise is improved, compared to a standard bare concrete floor. The higher the figure the better the improvement. Building Regulations guidance is for Δ Lw of 17Db or higher for soft floor coverings on concrete.
| Δ Lw | |
| Acoustilay 15 | 42 Db |
| Acoustilay 3 | 42Db |