Project Background
This 8,200 ㎡ cold chain fulfillment hub near the Port of Antwerp handles temperature-sensitive cross-border e-commerce goods, operating 24/7 across frozen, chilled and ambient temperature zones. The facility combines automated sorting lines, heavy-duty conveyor systems and high-volume refrigeration units. Prior to acoustic treatment, the facility had received two occupational health audit warnings for elevated noise levels, and staff turnover in high-noise zones was 2.3x higher than in other warehouse roles.
Core Acoustic Challenges
- Continuous broadband noise from refrigeration compressors and sorting equipment exceeded EU workplace exposure limits by 6–8 dB
- Hard insulated panel walls and concrete floors created long reverberation, making verbal safety instructions difficult to understand
- Layout adjustments for seasonal peaks meant any fixed acoustic solution had to be reconfigurable, and all materials had to perform reliably across -18°C to +22°C temperature zones
Solution & Implementation
Instead of a traditional full-wall cladding approach, the project adopted a targeted modular strategy. MLV damping sound barriers were deployed along high-noise refrigeration and sorting lines as freestanding modular units, delivering up to 27 dB STC per layer to block direct noise radiation toward workstations. The main picking hall ceiling received high-density fiberglass acoustic panels with sealed edges, selected for stable performance across temperature fluctuations and resistance to condensation. Installation was carried out in three overnight phases to avoid disrupting cold chain operations. All materials were pre-cut to exact dimensions at the factory, reducing on-site cutting and waste. Post-installation acoustic testing was conducted at 12 fixed workstation points to validate performance.
Measurable Outcomes
- Average workstation noise levels reduced by 41%, falling fully within EU occupational health limits
- On-site verbal communication clarity improved by 43%, reducing safety incident risks
- The modular barrier design was reconfigured twice during peak season layout changes with no performance loss
- Staff turnover in high-noise zones dropped by 28% within six months
Key Takeaways
For temperature-controlled logistics environments, targeted modular acoustics deliver better ROI than full-space treatment, and material stability across temperature ranges is a more critical selection criterion than raw absorption coefficients alone.
