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Hush Lag 5/25 Acoustic Barrier
Suitable for:
- domestic
- residential
- industrial
- education
- healthcare
- leisure
Hush Lag 5/25 is a high-performance acoustic laminate designed to reduce noise transmission across a wide range of building services and mechanical applications. Manufactured as a durable tri-layer system, the product combines controlled-density mineral fibre insulation, a flexible high-mass acoustic barrier and a reinforced foil facing.
This integrated design provides mass, isolation and mechanical protection in a single product, removing the need for separate decoupling layers.
Its foil facing delivers additional flame resistance, vapour control and durability, making Hush Lag 5/25 suitable for demanding environments requiring high acoustic and fire performance.
For advice on the use of Hush Lag 5/25 Acoustic Barrier, as part of a system within any project, please contact our experienced technical team on 0151 933 2026 who will be happy to give comprehensive and practical advice to meet with your requirements.
Test Data
| Description | Data | Unit | Tolerance | Test Method |
|---|---|---|---|---|
| Apparent Density | 363 | kg/m³ | ± 10% | DIN EN 1602 |
| Reaction to Fire | B, s2, d0 (full composite product) | - | - | BS EN ISO 11925-2 / BS EN 13823 |
| Nominal Weight | 5.54 | kg/m² | ± 10% | - |
| Nominal Thickness | 15.25 (after compression when stitched) | mm | ± 20% | - |
| Static Operating Temperature Range | 20–93 (short exposure at extremes) | °C | - | Internal |
| Colour | Silver / yellow (front / back) | - | - | - |
Product Data
- Barrier mass: 5.00 kg/m²
- Fibreglass mass: 0.45 kg/m²
- Foil: 0.09 kg/m²
- Total mass: 5.54 kg/m²
- Rw: 36 dB
- Average SRI: 38 dB
material mass breakdown:
- High-performance acoustic attenuation for mechanical and building services
- Tri-layer composite providing mass, isolation and durability
- Integrated foil layer for increased flame resistance and vapour control
- Eliminates need for separate decoupling layers
- Suitable for environments requiring B-s2, d0 fire rating
- Lightweight and flexible for simple installation
- Stable performance across a wide temperature range (20–93°C)
Full fitting instructions are supplied with all products and are available to download from the Installation Guides section.
Should you have any technical questions prior to or during installation, please call 0151 933 2026 for friendly and straightforward advice.
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