A fire-rated receiver channel includes at least one intumescent or other fire-resistant material strip. The receiver channel can nest with a framing member, such as metal tracks, headers, header tracks, sill plates, bottom tracks, metal studs, wood studs or wall partitions, and placed at a perimeter
A fire-rated receiver channel includes at least one intumescent or other fire-resistant material strip. The receiver channel can nest with a framing member, such as metal tracks, headers, header tracks, sill plates, bottom tracks, metal studs, wood studs or wall partitions, and placed at a perimeter of a wall assembly to create a fire block arrangement. In other arrangements, a track assembly includes two nested tracks, an inner track and outer track. The assembly is designed so that the outside width of the outer track is equal to or less than the outside width of the inner track to present a substantially flush external surface for attachment of exterior sheathing elements when the assembly is used in an external wall.
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1. A wall assembly having a head-of-wall seal arrangement, the wall assembly comprising: a header track extending in a lengthwise direction of the wall assembly, the header track comprising a web, a first flange and a second flange, the first and second flanges extending downwardly from the web, eac
1. A wall assembly having a head-of-wall seal arrangement, the wall assembly comprising: a header track extending in a lengthwise direction of the wall assembly, the header track comprising a web, a first flange and a second flange, the first and second flanges extending downwardly from the web, each of the web, the first flange and the second flange being substantially planar such that the header track defines a substantially U-shaped cross section, wherein each of the first flange and the second flange includes a free end and the free ends define a header track width therebetween;a bottom track extending in the lengthwise direction and having a web, a first flange and a second flange, the first and second flanges extending upwardly from the web;a plurality of studs each having an upper end and a lower end, the lower end of each stud received within and secured to the bottom track and the upper end of each stud received within the header track;a receiver channel extending in the lengthwise direction and having a web, a first flange and a second flange, the first and second flanges extending downwardly from the web such that the receiver channel defines a substantially U-shaped cross section, wherein a width of the web of the receiver channel is greater than the header track width such that the first flange and the second flange of the receiver channel are positioned outwardly of the free ends of the first flange and the second flange of the header track, respectively, and wherein the header track is nested within the receiver channel and wherein each of the web, the first flange and the second flange of the receiver channel comprises a heat-expandable intumescent material. 2. The wall assembly of claim 1, further comprising at least one wallboard coupled to the plurality of studs, wherein the wallboard overlaps at least a portion of one of the first flange and the second flange of the header track and at least a portion of one of the first flange and the second flange of the receiver channel. 3. The wall assembly of claim 1, wherein the plurality of studs and the at least one wallboard are movable relative to the header track and the receiver channel. 4. The assembly of claim 3, wherein each of the first and second flanges of the header track comprises a plurality of vertical slots, and wherein the upper end of each of the plurality of studs is secured to the header track by a fastener that passes through one of the plurality of slots. 5. The wall assembly of claim 1, wherein each of the first and second flanges of the receiver channel has a free end opposite the web, each of the free ends defines a kick-out portion that extends in a direction opposite the web and away from the other kick-out portion. 6. The assembly of claim 1, wherein the heat-expandable intumescent material comprises at least one intumescent strip extending along and attached to a portion of the web and one of the first and second flanges of the receiver channel. 7. The assembly of claim 6, wherein the at least one intumescent strip defines a total length in a cross-sectional direction, wherein a portion of the total length located on the flange is at least five times greater than a portion of the total length on the web. 8. The assembly of claim 6, wherein the at least one intumescent strip covers a substantial entirety of the outer surface of the flange. 9. The assembly of claim 6, wherein the at least one intumescent strip comprises a first intumescent strip and a second intumescent strip on the first and second flanges, respectively. 10. The assembly of claim 1, wherein the first and second flanges of the header track are at least about twice as long as the first and second flanges of the receiver channel. 11. A building structure, comprising: a ceiling;a wall assembly, comprising: a header track secured to the ceiling and extending in a lengthwise direction of the wall assembly, the header track comprising a web, a first flange and a second flange, the first and second flanges extending downwardly from the web, each of the web, the first flange and the second flange being substantially planar such that the header track defines a substantially U-shaped cross section, wherein each of the first flange and the second flange includes a free end and the free ends define a header track width therebetween;a bottom track extending in the lengthwise direction and having a web, a first flange and a second flange, the first and second flanges extending upwardly from the web;a plurality of studs each having an upper end and a lower end, the lower end of each stud received within and secured to the bottom track and the upper end of each stud received within and movable in a vertical direction relative to the header track;a receiver channel extending in the lengthwise direction and positioned between the header track and the ceiling, the receiver channel having a web, a first flange and a second flange, the first and second flanges extending downwardly from the web such that the receiver channel defines a substantially U-shaped cross section, wherein a width of the web of the receiver channel is greater than the header track width such that the first flange and the second flange of the receiver channel are positioned outwardly of the first flange and the second flange of the header track, respectively, and wherein the header track is nested within the receiver channel, wherein each of the web, the first flange and the second flange of the receiver channel comprises a heat-expandable intumescent material such that at least a portion of the heat-expandable intumescent material is positioned between the header track and the ceiling;at least one wallboard coupled to and movable with the plurality of studs, wherein the wallboard overlaps at least a portion of one of the first flange and the second flange of the header track and at least a portion of one of the first flange and the second flange of the receiver channel. 12. The assembly of claim 11, wherein each of the first and second flanges of the header track comprises a plurality of vertical slots, and wherein the upper end of each of the plurality of studs is secured to the header track by a fastener that passes through one of the plurality of slots. 13. The wall assembly of claim 12, wherein each of the first and second flanges of the receiver channel has a free end opposite the web, each of the free ends defines a kick-out portion that extends in a direction opposite the web and away from the other kick-out portion, wherein the kick-out portions facilitate entry of a head of the fastener into a space between the first and second flanges of the receiver channel and a respective one of the first and second flanges of the header track. 14. The assembly of claim 11, wherein the heat-expandable intumescent material comprises at least one intumescent strip extending along and attached to a portion of the web and one of the first and second flanges of the receiver channel.
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