Environmental Noise Control, Inc. offers modular temporary sound walls of various heights, built to fit your needs.

ENC’s temporary sound walls are available in STC-25 and STC-32 with NRC overlays.

Engineering/calc packages available.

Flame Retardant

About ENC’s Temporary Sound Walls

  • Specs

  • Sound Transmission Class rated at STC-25 and STC-32 in accordance with ASTM E-413
  • Engineered to meet UBC/IBC Wind Load Requirements
  • Flame Retardant to California Fire Marshall f-419.01 Specifications
    • Length of Char: 3.5, After Flame: 2 seconds
  • Working Temperature: -40°F to +200°F
  • Oil Resistant, UV Resistant, Fiber-Free, Anti-Fungal, Self-Drying Poly-Vinyl Chloride Outer Shell with specifically developed inner core septum barrier

STC-25 Sound Transmission Loss (dB)

% Octave Band Center Frequency STC-25 Transmission Loss % Octave Band Center Frequency STC-25 Transmission Loss
63 Hz 8 dB 630 Hz 33 dB
80 Hz 10 dB 800 Hz 36 dB
100 Hz 11 dB 1000 Hz 39 dB
125 Hz 10 dB 1250 Hz 41 dB
160 Hz 7 dB 1600 Hz 41 dB
200 Hz 7 dB 2000 Hz 40 dB
250 Hz 11 dB 2500 Hz 41 dB
315 Hz 17 dB 3150 Hz 44 dB
400 Hz 23 dB 4000 Hz 46 dB
500 Hz 28 dB 5000 Hz 50 dB

STC-32 Sound Transmission Loss (dB)

% Octave Band Center Frequency STC-32 Transmission Loss % Octave Band Center Frequency STC-32 Transmission Loss
63 Hz 16 dB 630 Hz 34 dB
80 Hz 20 dB 800 Hz 35 dB
100 Hz 18 dB 1000 Hz 35 dB
125 Hz 16 dB 1250 Hz 36 dB
160 Hz 16 dB 1600 Hz 36 dB
200 Hz 17 dB 2000 Hz 36 dB
250 Hz 19 dB 2500 Hz 37 dB
315 Hz 23 dB 3150 Hz 39 dB
400 Hz 26 dB 4000 Hz 40 dB
500 Hz 32 dB 5000 Hz 43 dB