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  • What are the sound ratings on this assembly?

    A: Bare floor = min. STC 54 with G556 or H505 on 10" o.c. C-Joist; attainable value over a range of floor covering:

    The following acoustic ranges of STC/IIC values are available.

    • Code minimum STC 50 / IIC 50 and higher
    • Premium STC 55 / IIC 55 and higher
    • Deluxe STC60 / IIC 60 and higher