ENC offers modular K-rail mounted temporary sound walls in a variety of heights, built to fit your needs.
Our K-Rail mounted noise barriers can be quickly positioned in place and moved as necessary to provide a flexible noise control solution for mobile equipment or operations. Our newly redesigned double K-Rail frame allows for heights up to 20 feet, depending on site and environmental restrictions. The K-Rail mounted barrier is an effective solution if your project does not allow earth boring.
At the heart of our free-standing noise control systems are our ENC noise barrier blankets which are manufactured using state-of-the-art acoustical composite materials. They are available in STC-25, STC-32 with NRC overlays.
All of ENC’s acoustical blanket materials have been tested by an independent laboratory.
Engineering/calc packages available.
About ENC’s Temporary Sound Wall
-
Specs
- Sound Transmission Class rated at STC-25 OR 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
- NRC Overlays Available
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 |