Regupol Sonus Eco 4.5mm is a high-performance acoustic flooring underlay engineered to provide excellent impact sound insulation while maintaining strength, stability and durability. Manufactured to withstand everyday residential and commercial use, this underlay is designed for installation beneath carpet, laminate and timber flooring systems where effective sound reduction is required.

Tested and proven to achieve reliable sound improvement ratings, Regupol Sonus Eco 4.5mm helps buildings achieve compliance with Part E of Building Regulations when installed correctly as part of a suitable floor system. It also delivers excellent thermal stability, resistance to compression and long-lasting performance, making it ideal for busy homes, offices and multi-occupancy buildings.

Installation is straightforward using compatible adhesives and it performs consistently on concrete subfloors, offering dependable sound control without compromising floor comfort or height.

Key Features

• 4.5mm acoustic underlay
• Designed to reduce impact sound transmission
• Suitable for concrete subfloors
• For use with carpet, laminate and timber flooring
• Helps with Part E Building Regulations compliance
• Strong, durable and long-lasting
• Stable under heavy foot traffic

Technical Summary

• Thickness: 4.5mm
• Roll Size: 12m x 1.15m (13.8m²)
• Suitable subfloors: Concrete
• Suitable floor finishes: Carpet, Laminate, Timber
• Impact Sound Performance: 18dB
• Roll Weight: Approx 30kg