armstrong acousitbuilt c rs ablt campus cACOUSTIBuilt Seamless Acoustical Ceilings is a new ceiling system that provides the look of drywall but performs like an acoustical ceiling. Per the manufacturer, the installed system absorbs up to 70% of the sound that strikes it and also has a high ceiling attenuation class (CAC) up to 48, indicating its ability to ensure speech privacy by preventing sound from entering adjacent spaces.

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