Sound absorbent building material

Details Sound absorbent building material Sound absorbent building material

E - Fixed Constructions

04

B

E04B 1/84 (2006.01) B32B 5/28 (2006.01) E04B 1/86 (2006.01)

Patent

CA 2072214

SOUND ABSORBENT BUILDING MATERIAL ABSTRACT Sound absorbent building panel or strip material comprises a substantially rigid panel body (1) having a plurality of apertures (3) therein and a relatively thin layer of porous fabric (2) being applied to said rigid panel body in such a manner that it covers the apertures (3) therein, said porous fabric having a density defining pores that are substantially smaller than at least some of the apertures in said panel, the fabric layer (2) being bonded to the panel body (1) by means of adhesive material, applied in an open convoluting pattern along multiple adjacently spaced longitudinal tracks (4).

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