Armstrong World Industries, Inc.
ACOUSTICAL CEILING SYSTEM

Abstract:

Described herein is a ceiling system comprising: a support grid; a first panel mounted to the support grid, the first panel comprising a first body formed of a fibrous material; a second panel mounted to the support grid, the second panel comprising a second body formed of a sound attenuation material; whereby the first and second panels are supported by the support grid such that a vertical gap exists between the first panel and the second panel such that the first and second panels are not in direct contact.