Project Overview
Acoustic upgrade for public areas of a large urban commercial complex in Western Europe, with a total construction area of 58,000㎡, covering central atriums, pedestrian corridors, catering gathering areas and elevator lobbies. The original high ceiling, stone flooring and large glass curtain walls cause long reverberation tails and rapid noise accumulation. During peak passenger flow, overlapping crowd conversation and equipment noise result in poor announcement clarity and oppressive passenger experience. The property requires durable, low-maintenance acoustic materials with Class A fire protection to adapt to the high-traffic commercial environment.
Solution Deployment
- Atriums & main corridor ceilings: Full coverage of high-density inorganic fiberglass acoustic ceiling tiles with an NRC rating of 0.90–0.95. Inherent Class A fire resistance, excellent sag resistance and dust resistance, the interconnected porous structure efficiently absorbs full-spectrum reflected noise in large open spaces, maintaining stable long-term performance with minimal daily maintenance.
- Catering gathering area ceilings: Cement-bonded wood wool acoustic panels (NRC 0.80–0.90) are applied for grease and moisture resistance in catering environments, with natural texture matching the industrial-style interior of the dining area.
- Elevator hall partial walls: Grooved acoustic panels are arranged to optimize mid-low frequency resonance and further improve sound field uniformity in public areas.
All products meet EN 13501 Class A fire safety standards. The project is constructed in sections during night non-operating hours, total construction period 31 days.
Project Results
Post-completion testing shows overall background noise of the complex decreases significantly, and public announcement intelligibility improves remarkably across all areas. Reverberation time reaches commercial public space design standards. The durable low-maintenance fiberglass ceiling system reduces long-term property operation costs, and passes fire protection and acoustic special assessments for commercial buildings.
