Guide to choosing the best acoustic underlay for impact noise
Guide to choosing the best acoustic underlay for impact noise
The right acoustic underlay under your flooring can make the difference between constant disturbance and true silence. To choose wisely, compare materials, thickness, ΔLw values and cost per m²—so you can maximize performance and savings.
Comparison of top acoustic underlays for impact noise
| Comparison of top acoustic underlays for impact noise | ||||||
| Product type | Material | Thickness | ΔLw (dB) | Price €/m² | Strengths | Weaknesses |
| PE foam underlay | Polyethylene foam | 3 mm | 18–20 | 6.50 € | Lightweight, easy to cut | Low acoustic performance |
| PU foam underlay | Polyurethane foam | 10 mm | 28–30 | 14.00 € | Good acoustic comfort | High price, moisture sensitive, high thickness reduction |
| 100% Natural cork underlay | Cork | 4 mm | 20–22 | 12.00 € | Eco-friendly, natural | High price, Moderate ΔLw, risk proliferates insects |
| Recycled rubber underlay | Recycled SBR rubber | 6 mm | 32–34 | 4.50 € | Top ΔLw, durable, water-resistant, sustainable | heavier weight by comparison |
What the comparison tells us
The recycled rubber underlay at 6 mm offers the highest ΔLw, no weaknesses, and the lowest cost per m².
It’s the smart compromise between sustainability, efficiency and value for footstep noise reduction.
Mini-FAQ
- Compatible with wood and ceramic? Yes, suitable for both floating and glued installations.
- How long does it last? Over 20 years of stable performance.
Request the technical datasheet : Contact us today !
