초록 ▼

The present application is directed toward fire-rated wall construction components and wall systems for use in building construction. Embodiments can include tracks for holding studs which incorporate various geometries capable of receiving fire-retardant material, flat straps for use between tracks

The present application is directed toward fire-rated wall construction components and wall systems for use in building construction. Embodiments can include tracks for holding studs which incorporate various geometries capable of receiving fire-retardant material, flat straps for use between tracks and fluted wall components, fire sponges for use in fluted wall components, and tracks with protruding grooves or other structures which prevent unwanted air movement between a wallboard component and the track.

대표청구항 ▼

1. A fire-retardant wall system comprising: a plurality of vertical wall studs;a track for receiving the wall studs and connectable to a deck, the track comprising a web and at least one flange, a side edge of the web defines a recess, the flange extending from the recess of the web and having a fre

1. A fire-retardant wall system comprising: a plurality of vertical wall studs;a track for receiving the wall studs and connectable to a deck, the track comprising a web and at least one flange, a side edge of the web defines a recess, the flange extending from the recess of the web and having a free end opposite the web, the track further comprising at least one surface for accepting a layer of fire-retardant material thereon;a layer of fire-retardant material attached to the at least one surface on the track, wherein the fire-retardant material is located along portions of both the recess of the web and the flange, the fire-retardant material configured to expand when exposed to elevated heat;at least one piece of wallboard supported by the wall studs, wherein the wallboard covers a portion of the at least one flange; andan elongate protrusion that extends lengthwise along the flange and is positioned between the layer of fire-retardant material and the free end of the flange;wherein the wallboard overlaps the elongate protrusion such that the elongate protrusion inhibits air flow between the wallboard and the track, and wherein the layer of fire-retardant material is positioned on the track such that it can seal any gaps present between the track and the deck when it expands in response to exposure to elevated heat. 2. The fire-retardant wall system of claim 1, wherein the elongate protrusion has a v-shaped cross section. 3. The fire-retardant wall system of claim 1, wherein the layer of fire-retardant material abuts against the elongate protrusion. 4. The fire-retardant wall system of claim 1, wherein the layer of fire-resistant material extends along the recess of the web a first distance in a cross-sectional direction and the layer of fire-retardant material extends along the flange a second distance in a cross-sectional direction that is greater than the first distance. 5. A header track assembly for use in a stud wall assembly, comprising: a generally U-shaped top header track comprising a web and a pair of flanges, the flanges extending generally perpendicularly from opposing sides of the web;at least one strip of intumescent material coupled to the header track, the strip of intumescent material extending lengthwise relative to the header track with at least a portion of the strip of intumescent material located on a first portion of an outward-facing surface of one of the pair of flanges and another portion of the intumescent strip located on an outward-facing surface of the web, wherein the intumescent strip extends along only a corner portion of the web and does not extend across the entire width of the web;wherein an outward-facing surface of the portion of the intumescent material is spaced outwardly beyond a second portion of the outward-facing surface of the one flange. 6. The header track assembly of claim 5, wherein the at least one strip of intumescent material comprises a first strip of intumescent material located on the one flange and a second strip of intumescent material located on the other of the pair of flanges. 7. The header track assembly of claim 5, wherein the at least one strip of intumescent material is coupled to the header track with an adhesive. 8. The header track assembly of claim 5, additionally comprising an elongate protrusion defined by and extending lengthwise along the one flange, wherein the elongate protrusion is positioned between the at least one strip of intumescent material and the second portion of the outward-facing surface of the one flange. 9. A wall assembly comprising the header track assembly of claim 5, wherein the wall assembly comprises a footer track and a plurality of vertical studs coupled to the footer track, the header track assembly receiving upper ends of the plurality of vertical studs between the pair of flanges, the header track assembly coupled to the upper ends of the plurality of vertical studs. 10. The wall assembly of claim 9, additionally comprising a piece of wall board coupled to the plurality of vertical studs, wherein the piece of wall board overlaps at least a portion of the at least one strip of intumescent material. 11. The header track assembly of claim 5, wherein the portion of the layer of fire-resistant material on the web extends a first distance in a cross-sectional direction and the portion of the layer of fire-retardant material on the flange extends a second distance in a cross-sectional direction that is greater than the first distance. 12. A header track for use in a stud wall assembly, the stud wall assembly extending in a vertical direction between a lower horizontal support element and an upper horizontal support element, upper ends of a plurality of studs being received by the header track, the header track comprising: an elongate top web portion;a first elongate side flange portion;a second elongate side flange portion, the first and second elongate side flange portions extending downward from opposite sides of the elongate top web portion, the elongate top web portion and first and second elongate side flange portions defining a space for receiving the upper ends of the studs;a recess extending along the length of a side edge of the elongate top web portion, wherein the recess defines an upward-facing surface;an elongate protrusion extending along at least one of the first and second elongate side flange portions, wherein an upper portion of the at least one elongate side flange portion is defined between the elongate top web portion and the elongate protrusion and a lower portion of the at least one elongate side flange portion is defined between the elongate protrusion and a free end of the at least one elongate side flange portion;an elongate strip of fire-retardant material having a first portion affixed to the upward-facing surface of the recess and a second portion affixed to the upper portion of the at least one elongate side flange portion. 13. The header track of claim 12, wherein the elongate strip of fire-retardant material is affixed with an adhesive. 14. The header track of claim 12, wherein an edge of the elongate strip of fire-retardant material abuts against the elongate protrusion. 15. The header track of claim 12, wherein the elongate protrusion is defined by the at least one elongate side flange portion. 16. The header track of claim 15, wherein the elongate protrusion is V-shaped.