The sound transmission TL loss of a specified wall construction is 65 dB. The FSTC value of the wall when it has a flank
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The sound transmission TL loss of a specified wall construction is 65 dB. The FSTC value of the wall when it has a flank
The sound transmission TL loss of a specified wall construction is 65 dB. The FSTC value of the wall when it has a flanking FSTC value of 50 dB is: 35 dB 45 dB 55 dB None of the listed responses
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