Multifunctional Perforated Panels for Echo Reduction in Public Halls

In public halls, the combination of vast volumes, reflective surfaces, and dynamic usage poses unique acoustic challenges. Multifunctional perforated panels are purpose-engineered to control echo, support architectural integration, and enhance speech and music clarity. Their adaptability makes them a top choice for renovation and new-build projects worldwide.

Engineering Panels for Versatility

These panels are not just sound-absorbing. They serve multiple roles:

• Acoustic dampening (RT60 reduction)

• Fire resistance certified to ASTM E84 & EN 13501-1

• Integration with lights, sprinklers, HVAC

• Decorative effect with wood grain, matte or metallic finishes

Backed by testing under ISO 11654, these panels meet LEED EQ and WELL V2 criteria.

Performance Benchmarks & International Guidelines

Leading institutions like the Acoustical Society of America and ASCE recommend:

• RT60 ≤ 1.5–2.0s for halls ≤ 1500 sqm

• Absorption coefficient (αw) ≥ 0.75

• Perforation ratio ≥ 12% for mid-frequency control

Panels with CNC-cut round or slot perforations backed by mineral wool achieve broadband absorption across 250–4000 Hz.

Client Pain Point: Balancing Function and Finishes

A corporate event center in Ningbo faced echo complaints from event hosts and AV vendors. The room, finished in hard marble and glass, had excellent aesthetics but poor sound quality.

Our Solution

- Installed 220 sqm of white matte aluminum panels, Ø4mm round perforations, 18% open area
- Integrated dimmable lighting into ceiling panels
- Perimeter wall panels flush-mounted with fire sprinklers
- Result: RT60 reduced from 2.9s to 1.2s. Post-renovation bookings increased by 26% in 3 months.

Installation Insights

• Install panels with an air gap of 25–50mm behind for enhanced absorption

• Ensure minimal surface gloss to avoid secondary reflections

• Use pre-coated, formaldehyde-free panels to reduce VOCs

• Combine with acoustic ceiling baffles for full-range performance

Integrated Ceiling-Wall Systems

In large halls, echo originates from both horizontal and vertical surfaces. Using a continuous system of ceiling clouds and vertical wall panels (linked via aluminum suspension rails), clients can reduce echo uniformly and maintain a unified aesthetic.

Budget vs Performance ROI

Investment in perforated acoustic systems has been shown to:

• Reduce customer complaints

• Increase occupancy and rental rates

• Improve energy efficiency when combined with passive cooling systems

Per industry data cited by Architectural Digest, halls with optimized acoustics generate up to 17% higher event revenues.

Why Choose Perforated Panels?

From customization to compliance, these systems are:

• Modular and scalable

• Easy to maintain

• Fire-rated and sustainable

• Backed by real-world results

Let’s Make Your Hall Sound Better

We support hall designers, engineers, and contractors from pre-spec to install. Request your site evaluation and acoustic simulation today.

Contact Us

📞 Tel/WhatsApp: +86 180 2733 7739
📧 Email: [email protected]
🌐 Website: perforatedmetalpanel.com
📸 Instagram: instagram.com/jintongperforatedmetal
💬 WhatsApp: web.whatsapp.com
🔗 LinkedIn: Andy Liu
📘 Facebook: facebook.com/me

Also Read: Large Space Soundproof Solutions, Vertical Wall Panel Acoustics

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