This large e-commerce fulfillment warehouse in Southeast Asia runs high-volume daily sorting, packing and dispatch operations across two main levels. High exposed steel roof decks, concrete floors and dense automated conveyor systems created persistent high ambient noise across the sorting floor. Conveyor belts, sorting machinery and ventilation systems produced overlapping broadband noise, exposing frontline staff to noise levels above local occupational health limits. The hot, humid tropical climate also meant acoustic materials needed strong moisture resistance and dimensional stability to perform reliably long-term.

We designed a full-scope noise control scheme combining high-density inorganic fiberglass acoustic ceiling tiles and modular damping sound barriers. The entire sorting and packing zone ceiling was upgraded with fiberglass tiles with inherent ASTM E84 Class A fire resistance, delivering an NRC rating of 0.90–0.95 to absorb reflected ambient noise from equipment and airflow. The material is highly resistant to sagging, moisture and mould, maintaining stable performance in humid tropical warehouse conditions with minimal routine maintenance. Around high-noise points such as conveyor transfer stations and sorting machines, we installed modular sound barriers with a multi-layer damping structure, delivering up to 27dB of single-layer sound insulation to block direct equipment noise from spreading to staff workstations.

The 3,200㎡ renovation was completed in 29 days through overnight phased construction, with zero impact on daytime fulfillment operations. Post-acceptance testing confirmed staff work area ambient noise fell within the allowable range of local occupational health standards. On-site verbal communication is noticeably clearer, and the durable low-maintenance system also reduces long-term operational costs for the logistics operator.