IAC Acoustics Noise-Lock® Window


The IAC Acoustics Noise-Lock® Window is a high performance soundproof window for use in a wide range of architectural and industrial applications. Thousands of Noise-Lock® acoustic windows have been installed in industrial and commercial buildings throughout the world. Maintain visibility while blocking sound in virtually any situation. IAC Acoustics Noise-Lock® Windows are available in a wide range of standard models. Additionally, there is the ability to custom design and manufacture windows to suit specific applications.

These acoustic windows are laboratory tested and manufactured with precision from strong, durable metal (aluminum or stainless/galvanized steel) with reliable acoustic seals. We factory assemble for rapid, simple installation and to ensure perfect integration with any construction system. IAC products are renowned for quality, durability and guarantees for in-field performance.

IAC Noise-Lock® Windows are an excellent choice for factory offices and enclosures, hospitals, schools, nightclubs, laboratories, museums, TV studios, radio stations, audiometric rooms, test cells, translation booths, music practice rooms, hotels, offices and more.


  • Certified performance
  • STC ratings from 35 to 59
  • Noise reduction NIC 30-54 dB
  • Steel construction
  • Standard and custom sizes
  • Fully factory assembled
  • Integrates with all types of construction
  • UL fire, bullet and angle pane options
  • Stackable

Technical formation for IAC Acoustics Noise-Lock® Window:

  • Size: standard or custom as required
  • Glazing options:
    • Laminated safety glass
    • Tempered safety glass
    • One-way vision mirror
    • Non-reflective, heat resistant
    • Bullet resistant
    • Polycarbonate
    • Wire-inserted safety glass
  • STC: 39-59
  • LSG: Laminated Safety Glass BRG: Bullet Resistant Glazing
Sound Transmission Loss (Hz) per ASTM E90
Glass ThicknessGlass TypeWeight
lb/ sq ft
533140535962608″1/4″ & 1/4″LSG & LSG12
5739475260687710″1/2″ & 1/4″LSG & LSG18
5842475564636318″1-3/16″ & 1/4″BRG & LSG27
5942505559707810″1/2″ & 3/8″LSG & LSG20


For more information on our IAC Acoustics Noise-Lock® Window,
call us at 800.782.5742 or contact our sales department.