If a neighbor room produces 60 dB of …..What would the minimum STC………
A.
40
B.
50
C.
60
D.
70
If a neighbor room produces 60 dB of …..What would the minimum STC………
If a neighbor room produces 60 dB of …..What would the minimum STC………
A.
40
B.
50
C.
60
D.
70