Patent ID: 8307610

Claim:
A method of constructing an acoustically dampening construction assembly, comprising: determining that a construction assembly will need to provide some amount of acoustic dampening; choosing a metallic channel both for providing structural support to the construction assembly and for dampening sound passing through the construction assembly, the metallic channel comprising: an elongated web, at least one elongated flange extending transversely from the web, the at least one elongated flange comprising first and second continuous ridges along the length of the at least one elongated flange, the at least one elongated flange further comprising an offset portion laterally spaced inwardly from the first and second ridges, the offset portion bordered by the first and second continuous ridges and spanning approximately the entire width of the at least one elongated flange along the length of the metallic channel, and an insulative material disposed on the offset portion of the at least one elongated flange, wherein the insulative material has an outer surface which is substantially flush with the first and second ridges and wherein the insulative material substantially fills the area between the outer surface and the offset portion, and wherein the insulative material comprises at least one material of the group consisting of foam, foam tape, spray-in insulation, expanded insulation, fibrous insulation, polystyrene, polyurethane, polyisocyanurate, aerogel, ceramic insulation, and porous foam insulation; and causing the metallic channel to be installed in the construction assembly such that the first and second ridges contact an inner edge of a planar construction component with the offset portion laterally spaced apart from the planar construction component.