CPC E04B 9/045 (2013.01) [B32B 5/26 (2013.01); B32B 7/12 (2013.01); E04B 1/86 (2013.01); B32B 5/02 (2013.01); B32B 2255/02 (2013.01); B32B 2307/10 (2013.01); B32B 2419/04 (2013.01); E04B 2001/8461 (2013.01)] | 20 Claims |
1. An acoustic ceiling panel comprising:
a first body comprising a fibrous material and having a first major surface, a second major surface, and a side surface extending between the first and second major surfaces; and
a second body comprising a fibrous material and having a first major surface, a second major surface, and a side surface extending between the first and second major surfaces, the second major surface of the second body facing the second major surface of the first body; and
an attenuation coating comprising: (1) a first portion located between the second major surface of the first body and the second major surface of the second body; and (2) a second portion covering the side surface of the first body;
wherein at least one of the first major surface of the first body and the first major surface of the second body is free from the attenuation coating.
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