STC 57, 527 over Type X on 1 side, 2 layers of Type X other side of single 2-1/2” UltraSTEEL studs
Acoustic test performed on a wall assembly built on steel studs spaced 24 O.C, with QuietRock 527 over Type X gypsum on one side and two layers of Type X on the other.
Test Report: TL07-393
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