Fire-rated joint system

Abstract

A fire-rated angle piece and wall assemblies or other assemblies that incorporate the fire-rated angle piece, in which the angle piece can include an intumescent or other fire-resistant material strip. The angle can be attached adjacent to a corner of a framing member, such as metal tracks, headers, header tracks, sill plates, bottom tracks, metal studs, wood studs or wall partitions, and placed between the framing member and a wall board member at a perimeter of a wall assembly to create a fire block arrangement. A fire spray material can be applied over a portion of the angle piece.

1 .- 35 . (canceled) 
     
     
         36 . A fire-rated assembly for a linear wall gap, comprising:
 a track that has a web, a first flange and a second flange, wherein the web is substantially planar and has a first side edge and a second side edge, the first flange and the second flange extend in the same direction from the first and second side edges, respectively, wherein each of the first and second flanges is substantially planar such that the track defines a substantially U-shaped cross section;   an angle piece comprising a first flange, a second flange oriented at a first angle relative to the first flange, the first flange and the second flange being connected to one another along an edge thereby defining a corner, the first and second flanges being formed from a non-metal material; and   a heat-expandable intumescent strip attached to one of the first and second flanges of the angle piece, the heat-expandable intumescent strip having an activation temperature that is lower than a melting temperature of the non-metal material,   wherein, in use, the first flange of the angle is positioned adjacent to an overhead structure with the second flange of the angle being positioned adjacent one of the first or second flanges of the track,   wherein the angle piece is configured to deform and contain expanding intumescent material of the heat-expandable intumescent strip when the angle piece and the heat-expandable intumescent strip are exposed to temperatures greater than the activation temperature.   
     
     
         37 . The fire-rated assembly of  claim 36 , wherein the non-metal material is comprised of polyvinyl chloride (PVC). 
     
     
         38 . A fire-rated wall joint product, comprising:
 an angle piece comprising a first flange, a second flange oriented at a first angle relative to the first flange, the first flange and the second flange being connected to one another along an edge thereby defining a corner, the first and second flanges being formed from a non-metal material; and   a heat-expandable intumescent strip attached to one of the first and second flanges, the heat-expandable intumescent strip having an activation temperature that is lower than a melting temperature of the non-metal material,   wherein the angle piece is configured to deform and contain expanding intumescent material of the heat-expandable intumescent strip when the angle piece and the heat-expandable intumescent strip are exposed to temperatures greater than the activation temperature.   
     
     
         39 . The fire-rated wall joint product of  claim 38 , wherein the non-metal material is comprised of polyvinyl chloride (PVC). 
     
     
         40 . A fire-rated wall joint product, comprising:
 a body portion comprising a first end and a second end, the body portion being formed from a non-metal material; and   a heat-expandable intumescent strip attached to the body portion between the first and second ends, the heat-expandable intumescent strip having an activation temperature that is lower than a melting temperature of the non-metal material,   wherein the non-metal material is configured to deform and contain expanding intumescent material of the heat-expandable intumescent strip when the body portion and heat-expandable intumescent strip are exposed to temperatures greater than the activation temperature.   
     
     
         41 . The fire-rated wall joint product of  claim 40 , wherein the non-metal material is comprised of polyvinyl chloride (PVC). 
     
     
         42 . A fire-rated assembly for a linear wall gap, comprising:
 a track that has a web, a first flange and a second flange, wherein the web is substantially planar and has a first side edge and a second side edge, the first flange and the second flange extend in the same direction from the first and second side edges, respectively, wherein each of the first and second flanges is substantially planar such that the track defines a substantially U-shaped cross section;   an angle piece comprising a first flange, a second flange oriented at a first angle relative to the first flange, the first flange and the second flange being connected to one another along an edge thereby defining a corner; and   a gasket attached to the angle piece, the gasket comprising a compressible material,   wherein, in use, the first flange of the angle is positioned adjacent to an overhead structure such that the gasket contacts the overhead structure to form a seal between the first flange and the overhead structure.   
     
     
         43 . The fire-rated assembly of  claim 42 , wherein the gasket is attached to the first flange of the angle. 
     
     
         44 . The fire-rated assembly of  claim 42 , wherein a first end of the gasket is attached to the first flange and a second end of the gasket is attached to the second flange such that the gasket is positioned over the corner of the angle piece. 
     
     
         45 . The fire-rated assembly of  claim 42 , further comprising a heat-expandable intumescent strip attached to one of the first and second flanges of the angle piece. 
     
     
         46 . A fire-rated wall joint product, comprising:
 an angle piece comprising a first flange, a second flange oriented at a first angle relative to the first flange, the first flange and the second flange being connected to one another along an edge thereby defining a corner; and   a gasket attached to the angle piece, the gasket comprising a compressible material.   
     
     
         47 . The fire-rated wall joint product of  claim 46 , wherein the gasket is attached to the first flange of the angle. 
     
     
         48 . The fire-rated wall joint product of  claim 46 , wherein a first end of the gasket is attached to the first flange and a second end of the gasket is attached to the second flange such that the gasket is positioned over the corner of the angle piece.