Acoustical ceiling board

Details Acoustical ceiling board Acoustical ceiling board

E - Fixed Constructions

04

B

181/14

E04B 1/74 (2006.01) E04B 9/04 (2006.01)

Patent

CA 1193554

ACOUSTICAL CEILING BOARD Abstract of the Disclosure The product herein is a unique acoustical ceiling product in that both the decorative appearance of the ceiling board and its acoustical properties are produced by a series of grooves cut in the board surface. The porosity of the board material and the amount of vertical exposed surface in the decorative pattern permits one to secure a desired acoustical rating without the use of typical acoustical pin punched or fissured perforations needed with most mineral fiber ceiling boards to secure the desired acoustical rating.

416973

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