Scenario Intro
Multi-sport indoor arenas face a unique acoustic paradox: they must handle the roar of a crowd in one section while maintaining silence for a separate event in another. Standard drywall partitions lack the flexibility required for dynamic scheduling, while traditional movable walls often leak sound at the vertical joints. Engineering a truly soundproof boundary requires a deep dive into material density and mechanical seal pressure.
Transparency Disclosure
EBUNGE specialists developed the Series 100 specifically for these extreme environments. This report outlines the technical benchmarks required for STC 56 performance in professional arenas.
1. **Multi-Layer Damping: The Physics of Sound Absorption**
Sound waves in arenas are often low-frequency, which are the hardest to block. Our panels utilize a decoupled mass-layering technique: a 12mm MDF outer skin, followed by a 1.2mm acoustic rubber membrane, and a 80mm high-density mineral wool core. This multi-density approach breaks the resonance frequency, preventing sound transmission.
2. **Vertical Joint Integrity and Magnetic Seals**
The weakest point of any movable wall is the vertical joint between panels. We employ interlocking tongue-and-groove profiles with integrated magnetic strips. This ensures a tight air seal, which is the foundation of acoustic isolation. Without an airtight seal, sound ‘leaks’ like water through a pipe.
3. **Structural Support: The Steel Bridge Method**
Large arenas often have complex ceiling structures. We design custom steel bridge trusses to support the track system. These trusses are isolated from the main building structure using rubber vibration mounts to prevent sound from vibrating through the building’s skeleton.
4. **Longevity and Cycle Testing**
Arena partitions are moved daily. Our hardware is tested for 200,000 cycles without failure. We use high-grade 6063-T6 aluminum for all profiles, ensuring that the wall remains perfectly aligned over years of heavy use.
[Engineering Decision]
We recommend the Series 100 with Dual-Motorized Seals for any arena application. The increased mass of the 100mm panel is essential for blocking high-decibel athletic events.
[Risk Reminder]
Ensure the floor level is within +/- 5mm across the entire run. If the floor is uneven, the bottom seals will not achieve full compression, resulting in a loss of up to 15dB in performance.
Engineer-led FAQ
- Q: What is the maximum height for these walls?
A: Our Series 100 can reach up to 18 meters with custom structural reinforcement. - Q: Are the panels fire-rated?
A: Yes, we offer Class A fire-rated cores and finishes for public safety compliance.
Project Inquiry Form
- 1. Project Location: Indoor Arena
- 2. Partition Height: Custom
- 3. Total Width: Custom
- 4. STC Requirement: 55+
- 5. Surface Finish: Veneer / Steel / Fabric
- 6. Stacking Method: Custom
- 7. Pass Door Needs: Required
- +1 Contact: