gypsum tiles 975
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One of the benefits of mineral fiber ceiling tiles is that they are heavier and denser than the ones made of fiberglass. Because of this feature they are much better at impeding sound travelling from room to room. This feature allows these panels to excel in higher frequency environments. Mineral fiber ceiling tiles will generally have a higher ceiling attenuation class (CAC) and a lower noise reduction coefficient (NRC).
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With your utility knife, carefully cut along the marked lines. Ensure you are cutting only through the drywall and not damaging any electrical wires or pipes behind it. For a cleaner cut, score the drywall along the lines multiple times before breaking it along the score.
how to make an access panel in drywall ceiling...
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