Technical Data - dBNR Nois-eNvelope™ A4L Panel
dBNR Nois-eNvelope™ A4L architectural and environmental acoustic panels are designed by our team of experts in acoustics and noise control applications to achieve outstanding performance acoustics. The A4L Panels can be used to create a noise barrier system or assembled into a noise control enclosure system depending on the location of the noise source with regards to the receiver and the noise reduction criteria.
Our team works hard to determine the appropriate acoustic system that will provide superior noise reduction with industry-leading results for both the Noise Reduction Coefficient (NRC) and Sound Transmission Class (STC) ratings. dBNR Nois-eNvelope A4L Panel has a Noise Reduction Coefficient rating of 1.10 and Sound Transmission Class 39.
A4L PANEL SPECS:
Material:
Galvanized construction, pre-painted steel, stainless steels and aluminum
Panel Thicknesses:
4.00 in. (101.60 mm)
Panel Dimensions:
48 in.(1.21m) wide by up to 288 in.(7.31m) long
Construction:
18 ga up to 10 ga exterior with 22 ga up to 18 ga perforated interior finish
Paint finishes:
Galvanized and custom painted finishes available
dBNR Nois-eNvelope™ A4L Panel
| Octave Ctr Frequency (Hz) | 63 | 125 | 250 | 500 | 1000 | 2000 | 4000 | 8000 | |
| Sound Absorption Coefficient | NRC 1.10 |
0.25 | 0.91 | 1.08 | 1.11 | 1.09 | 1.07 | 1.05 | 1.15 |
| Transmission Loss (TL) | STC 39 |
11 | 20 | 26 | 41 | 53 | 56 | 62 | 60 |
Tests conducted by Riverbank Acoustical Laboratories
Sound Absorption
dBNR Nois-eNvelope™ Panel A4L
SAA=1.09
NRC=1.10
Sound Transmission
dBNR Nois-eNvelope™ Panel A4L
STC=39
For more detailed information on dBNR Nois-eNvelope™ architectural and environmental acoustic A4L panels please visit our test data reports.
