Acousta-Wal

Trenwyth / Acousta-Wal

Acousta-Wal Noise Reduction Coefficients

Size
Type
Surface
Frequency - Hertz
NRC
125
250
500
1000
2000
4000
4″
I
Painted
.18
.82
.40
.35
.43
.36
.50
6″
I
Painted
.63
.80
.41
.40
.31
.51
.50
8″
IRF
Painted
.18
.82
.40
.35
.43
.36
.50
10″
IRF
Painted
.18
.82
.40
.35
.43
.36
.50
12″
IRF
Painted
.63
.80
.41
.40
.31
.51
.50
4″
IV
Painted
.21
.78
.97
.80
.68
.73
.80
6″
IV
Painted
.31
1.23
.71
.71
.65
.68
.85
8″
IVRF
Painted
.21
.78
.97
.80
.68
.73
.80
10″
IVRF
Painted
.21
.78
.97
.80
.68
.73
.80
12″
IVRF
Painted
.31
1.23
.71
.71
.65
.68
.85