Unit of Measure


Material Thickness

N/A 2-1/2 in

Sound Transmission Loss- Standard


Transmission Loss @ 1000 Hertz (Hz) Frequency

N/A 42 dB

Transmission Loss @ 125 Hertz (Hz) Frequency

N/A 19 dB

Transmission Loss @ 2000 Hertz (Hz) Frequency

N/A 56 dB

Transmission Loss @ 250 Hertz (Hz) Frequency

N/A 20 dB

Transmission Loss @ 4000 Hertz (Hz) Frequency

N/A 62 dB

Transmission Loss @ 500 Hertz (Hz) Frequency

N/A 28 dB

Transmission Loss - Sound Transmission Class (STC)

N/A 31 dB


N/A 2.6 lb/ft²



  • High actual noise reduction up to 25 dB(A)
  • Custom engineered systems for any application
  • Roof Panels and ventilation systems available when required
  • Quick access to machinery and equipment for operation and maintenance
  • Fire safe and low smoke emissions per ASTM E-84, Class 1: Per ASTM E-162, ASTM E-662
  • Easily installed, relocated or modified
  • View windows for visibility
  • Washable and steam cleanable component materials
  • Durable constructions for long service life in severe industrial conditions
  • Curtain system models are offered in various styles for optimum solution of application's requirements
  • Economical alternative to rigid acoustical panel systems