Acoustic structural building panels

An acoustic structural panel having a first exposed major surface opposite a second exposed major surface and side surfaces extending between the first and second exposed major surfaces, the acoustic structural panel comprising:

• a first protective layer comprising at least a portion of the first exposed major surface;
• a second protective layer comprising at least a portion of the second exposed surface;
• a core structure located between the first and second protective layers, the core structure comprising
• a first body having a first major surface opposite a second major surface, whereby the first body does not allow for airflow between the first and second major surfaces of the first body under normal atmospheric conditions;
• and
• a second body having a first major surface opposite a second major surface, whereby the second body allows for airflow between the first and second major surfaces of the second body under normal atmospheric conditions;
• wherein the first major exposed surface of the acoustic structural panel comprises a plurality of apertures adjacent to the second body;
• wherein the first major surface of the second body is adjacent to the first protective layer, and the second body is offset from the second protective layer by a portion of the first body having a thickness ranging from about 0.5 inches to about 3.5 inches.

An acoustic structural panel having a first exposed major surface opposite a second exposed major surface and side surfaces extending between the first and second exposed major surfaces, the acoustic structural panel comprising:

• a first protective layer comprising at least a portion of the first exposed major surface;
• a second protective layer comprising at least a portion of the second exposed surface;
• a core structure located between the first and second protective layers, the core structure comprising:
• a foam body comprising:
• a first major surface opposite a second major surface;
• a first thickness as measured between the first major surface and the second major surface of the foam body;
• a depression formed into the first major surface into the foam body and extending to a depression floor that is located between the first and second major surfaces of the foam body;
• a second thickness as measured between the first major surface of the foam body and the depression floor;
• wherein a ratio between the second thickness and the first thickness ranges from about 0.2:1 to about 0.9:1;
• and
• a fibrous body located in the depression of the foam body, the fibrous body comprises a first major surface opposite a second major surface, the first major surface of the fibrous body facing the first protective layer and the second major surface of the fibrous body facing the depression floor of the foam body;
• and
• wherein the first major exposed surface of the acoustic structural panel comprises a plurality of apertures exposing the fibrous body.