Patent ID: 7866108
Filing Date: 2011-01-11
Classification: E04B

Abstract:
1. A fire retardant head-of-wall assembly configured to accommodate up and down ceiling deflections, comprising: an elongated sheet-metal footer track; an elongated sheet-metal header track confronting and vertically spaced apart from the footer track, the header track including a web integrally connected to a pair of spaced apart and downwardly extending sidewalls, at least one sidewall having an upper sidewall portion adjacent to the web and a lower sidewall portion separated from the upper sidewall portion by an outwardly facing protrusion that runs lengthwise along each sidewall; a plurality of sheet-metal studs having upper and lower end portions, the studs being vertically positioned between the spaced apart and confronting footer and header tracks such that the lower end portions are received into the footer track and the upper end portions are received into the header track;