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In many industrial facilities, noise doesn’t stay where it’s generated—it moves. If your machinery room sounds are bleeding into adjacent spaces, you’re likely dealing with bulkhead noise transmission, where low-frequency energy passes directly through structural walls. The most effective solution is installing a high-mass acoustic barrier directly onto bulkheads to stop sound at the source. In Illinois, facilities must comply with OSHA exposure limits of 85 dB (8-hour TWA), making proper noise control not just a performance upgrade—but a compliance requirement.
When Walls Start Transmitting Noise
In high-power machinery environments, bulkheads aren’t just walls—they become pathways for noise.
Equipment operating at 80–105 dB generates energy that doesn’t stay contained. Instead, it transfers through:
- Structural partitions and bulkheads
- Equipment room walls
- Adjacent workspaces and corridors
What seems like a localized issue quickly spreads, impacting multiple areas across a facility.
Why Bulkheads Fail to Block Sound
Most bulkheads are designed for structure—not acoustics. Without added mass, they allow sound to pass through easily, especially at lower frequencies.
- Low-frequency noise penetrates untreated surfaces
- Lightweight wall systems lack sound-blocking density
- Absorptive materials reduce echo, not transmission
This is why noise continues to travel even after basic treatments are applied.
The Right Fix: Add Mass to the Structure
To stop sound from passing through bulkheads, you need to increase their density.
Recommended System
MassiCore® Marine 135 (ANC-MB135)
- 2 lb mass loaded vinyl barrier for high-density blocking
- Effective for low-frequency machinery noise
- Flexible for installation on flat or irregular surfaces
- Designed for industrial and heavy-duty environments
Instead of absorbing sound inside a room, it blocks it from passing through the wall entirely.
How It’s Installed
For best performance, the system should be applied as a continuous layer:
- Installed directly onto bulkheads and wall systems
- Integrated into dual-layer soundproofing assemblies
- Combined with absorptive materials when needed
- Fully sealed to eliminate transmission gaps
This creates a complete acoustic barrier system across the structure.
Measured Results in Industrial Settings
With proper installation:
- Noise reduced from 95–105 dB to 65–70 dB
- Improved workplace safety and communication
- Reduced noise spread across departments
Supports OSHA standards in Illinois:
- 85 dB (Action Level)
- 90 dB (Permissible Exposure Limit)
Why Illinois is a Key Focus
Illinois is a priority due to:
- Dense manufacturing and industrial operations
- High concentration of machinery-intensive facilities
- Strict workplace safety and compliance requirements
- Ongoing demand for industrial noise control solutions
Final Takeaway
Bulkheads don’t stop noise unless they’re built to.
To control heavy machinery noise transmission, you need:
- High-mass acoustic barrier
- Full-surface installation with no gaps
- Compliance with OSHA standards
MassiCore® Marine 135 provides a reliable solution for stopping noise transmission through bulkheads in industrial environments.
