CAC stands for Ceiling Attenuation Class and measures what?

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Multiple Choice

CAC stands for Ceiling Attenuation Class and measures what?

Explanation:
The main idea is that CAC is a rating for ceiling systems that tells you how well the ceiling blocks sound traveling between spaces that share the air plenum above the tiles. It stands for Ceiling Attenuation Class. This measurement focuses on sound transmission through the ceiling into the plenum, not on how much sound is absorbed by the ceiling material itself. A higher CAC means greater attenuation, so less noise passes through to the adjacent room. This is why the best description is that it measures sound transmission reduction between rooms sharing a plenum, with higher values indicating better attenuation.

The main idea is that CAC is a rating for ceiling systems that tells you how well the ceiling blocks sound traveling between spaces that share the air plenum above the tiles. It stands for Ceiling Attenuation Class. This measurement focuses on sound transmission through the ceiling into the plenum, not on how much sound is absorbed by the ceiling material itself. A higher CAC means greater attenuation, so less noise passes through to the adjacent room. This is why the best description is that it measures sound transmission reduction between rooms sharing a plenum, with higher values indicating better attenuation.

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