Eliminate transformer hum and actuator noise from elevator machine rooms with perforated aluminum acoustic panels. Engineered for airflow, fire resistance, and high-frequency absorption, these ISO 11654-certified solutions reduce noise leakage by over 12 dB in residential and commercial retrofits.
Quiet Control: Using Perforated Aluminum Panels in Elevator Machine Rooms
1. Elevator Control Rooms: A Hidden Noise Source
Elevator control rooms—often situated adjacent to residential units, office walls, or atop mechanical floors—are notorious for producing high-frequency operational noise, transformer hums, and relay clicking. Soundproofing these tight, heat-sensitive environments requires materials that offer acoustic absorption, heat resistance, and structural durability. Perforated aluminum sheets, when layered with acoustic cores, offer a space-saving and effective solution to contain and absorb unwanted noise within elevator machinery spaces.
2. Acoustic Panel Design for Machine Enclosures
Surface: Perforated aluminum (Ø1.0–1.5 mm) with 18–22% open area for high-frequency absorption
Core: Mineral wool or PET fiber (≥48kg/m³) sandwiched with acoustic mesh backing
Panel Thickness: 25–50 mm, modular sizes for walls, doors, and ceiling decks
Finish: Fire-retardant powder coating in metallic silver, light gray, or RAL custom
Panels meet ISO 11654 and ASTM E1414 for sound attenuation in industrial enclosures. Additionally, surface treatments comply with ASCE vibration isolation design protocols.
3. Case Study: Singapore Residential Tower Retrofit
Challenge: Complaints about transformer buzz and brake actuator noise leaking into the penthouse above elevator control room.
Solution: Installed 42 modular perforated panels across 3 interior walls and ceiling. Panels used 2-layer PET core with aluminum facing (RAL7035).
Outcome:
4. Heat Dissipation + Soundproofing
Unlike thick gypsum or rubber isolation, perforated aluminum allows airflow and does not trap heat—critical for elevator drive units. Paired with breathable acoustic foam or ventilated PET cores, these panels retain cooling paths while dampening impulse noise. This dual functionality aligns with Architectural Digest’s 2025 Infrastructure Design Trends.
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