The present invention is directed toward a track assembly comprising 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 surfac
The present invention is directed toward a track assembly comprising 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. The system may further comprise a strap or series of engaging surfaces on the inner and outer tracks that generally restrain the inner track relative to the outer track.
대표청구항▼
1. An exterior wall system, comprising: an elongate outer track having a web, a first side flange and a second side flange, the first and second side flanges of the outer track extending in the same direction from opposite side edges of the web of the outer track, the first and second side flanges o
1. An exterior wall system, comprising: an elongate outer track having a web, a first side flange and a second side flange, the first and second side flanges of the outer track extending in the same direction from opposite side edges of the web of the outer track, the first and second side flanges of the outer track being substantially parallel and spaced apart by a first distance, the outer track secured to a ceiling component;an elongate inner track having a web, a first side flange and a second side flange, the first and second side flanges of the inner track extending in the same direction from opposite edges of the web of the inner track, the first and second side flanges of the inner track each having a flared shape such that the first and second side flanges have upper parallel portions spaced apart by a second distance and lower parallel portions spaced apart by a third distance, wherein the second distance is selected to permit the upper parallel portions to nest within the outer track and the third distance is substantially equal to the first distance;a plurality of studs spaced from one another along a length of the inner track, each of the plurality of studs arranged vertically and an upper end of each of the plurality of studs received between the lower parallel portions of the first and second side flanges of the inner track, each of the plurality of studs secured to the inner track;an upper sheathing board having a lower edge, the upper sheathing board secured relative to the outer track with the lower edge of the upper sheathing board substantially aligned with the lower edge of the first side flange of the outer track;a lower sheathing board having an upper edge, the lower sheathing board secured relative to the plurality of studs below the upper sheathing board with the upper edge facing and substantially aligned with the lower edge such that the outer surface of the lower sheathing board is substantially flush with the outer surface of the upper sheathing board. 2. The exterior wall system of claim 1, wherein the upper sheathing board is secured to the first side flange of the outer track. 3. The exterior wall system of claim 1, wherein the first and second side flanges of the inner track comprise a plurality of vertical slots that permit the plurality of studs to be secured to the inner track and permit vertical relative movement between the inner track and the plurality of studs. 4. The exterior wall system of claim 1, wherein the inner track is restrained from side-to-side movement relative to the outer track and wherein relative movement between the inner track and outer track is permitted in a direction along the length of the inner and outer tracks. 5. The exterior wall system of claim 1, further comprising at least one strip of intumescent material attached along the web of the outer track. 6. An exterior wall system, comprising: an elongate outer track having a web and a pair of side flanges extending from opposite side edges of the web of the outer track, the outer track secured to a ceiling component;an elongate inner track having a web and a pair of side flanges extending from opposite edges of the web of the inner track, wherein the web and portions of the pair of flanges are configured to nest within the outer track;a plurality of studs spaced from one another along a length of the inner track, each of the plurality of studs arranged vertically and an upper end of each of the plurality of studs received between the side flanges of the inner track and secured to the inner track;an upper sheathing board having a lower edge, the upper sheathing board secured relative to the outer track with the lower edge of the upper sheathing board substantially aligned with the lower edge of the first side flange of the outer track;a lower sheathing board having an upper edge, the lower sheathing board secured relative to the plurality of studs below the upper sheathing board with the upper edge of the lower sheathing board facing the lower edge of the upper sheathing board. 7. The exterior wall system of claim 6, wherein the upper sheathing board is secured to an outer one of the pair of side flanges of the outer track. 8. The exterior wall system of claim 6, wherein each of the pair of side flanges of the inner track comprise a plurality of vertical slots that permit the plurality of studs to be secured to the inner track and permit vertical relative movement between the inner track and the plurality of studs. 9. The exterior wall system of claim 6, wherein the inner track is restrained from side-to-side movement relative to the outer track and wherein relative movement between the inner track and outer track is permitted in a direction along the length of the inner and outer tracks. 10. The exterior wall system of claim 6, further comprising at least one strip of intumescent material attached along at least a side portion of the web of the outer track such that the at least one strip of intumescent material is positioned between the web and the ceiling component. 11. The exterior wall system of claim 6, further comprising at least one opening in the web of the inner track. 12. The exterior wall system of claim 6, wherein each side flange of the outer track comprises at least one inwardly angled surface to restrain the inner track from separating from the outer track when the inner and outer tracks are in a nested arrangement. 13. The exterior wall system of claim 6, wherein each side flange of the inner track comprises at least one outwardly angled surface to restrain the inner track from separating from the outer track when the inner and outer tracks are in a nested arrangement. 14. The exterior wall system of claim 6, further comprising two strips of intumescent material attached to the web of the outer track. 15. The exterior wall system of claim 6, further comprising means for restraining the inner track from being pulled away from the outer track. 16. The exterior wall system of claim 15, wherein the means for restraining comprises a setting strap.
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