Fire or sound blocking components and wall assemblies with fire or sound blocking components

Abstract

Fire or sound blocking components are configured to resist the transmission of fire, heat or sound through a gap in a wall assembly. The components can be elongate and have a profile of a consistent cross-sectional shape along the length of the component. In some arrangements, the component is configured to provide fire or sound blocking to a dynamic head-of-wall joint of a wall assembly. In other arrangements, the component is configured to provide fire or sound blocking to a reveal gap within or along an edge of a wall assembly.

What is claimed is: 
     
         1 . A fire-blocking bead element to provide a fire-rated seal to a gap of a wall assembly, the fire-blocking bead element comprising:
 a profile structure, comprising:
 a first leg, the first leg comprising a free edge portion and an attachment portion, the first leg configured to extend along an outward-facing surface of a wall board of the wall assembly in use; and 
 a second leg, the second leg comprising a first surface and a second surface opposite the first surface, wherein the second leg is coupled to the first leg at the attachment portion of the first leg to form a corner of the profile structure, wherein the second leg is configured to be located between an edge of the wall board and an adjacent structure in use; 
   a gasket element positioned on the first surface of the second leg, wherein the gasket element is compressible to conform to an irregular surface of the adjacent structure; and   a flexible sealing leg located on the second leg between the compressible gasket element and a free end of the second leg such that the flexible sealing leg is located between the compressible gasket element and a header track of a wall assembly in use, wherein the flexible sealing leg is configured to contact the overhead structure; and   a fire blocking material strip located on the second surface of the second leg and configured to expand in response to heat, wherein the fire blocking material strip comprises a first side and a second side opposite the first side, wherein the first side is coupled to the second leg and the second side is configured to contact the edge of the wall board in use.   
     
     
         2 . The fire-blocking bead element of  claim 1 , wherein the profile structure comprises an L-shape. 
     
     
         3 . The fire-blocking bead element of  claim 1 , wherein the gasket element is spaced away from the corner of the profile structure. 
     
     
         4 . The fire-blocking bead element of  claim 1 , wherein the first leg, the second leg, the gasket element, and the flexible sealing leg form a unitary structure. 
     
     
         5 . The fire-blocking bead element of  claim 4 , wherein the unitary structure comprises vinyl. 
     
     
         6 . The fire-blocking bead element of  claim 1 , wherein the fire blocking material strip comprises intumescent material. 
     
     
         7 . The fire-blocking bead element of  claim 1 , wherein the first leg has a width of about 1⅛″. 
     
     
         8 . The fire-blocking bead element of  claim 1 , wherein the profile structure further comprises a tear off strip coupled to the first leg. 
     
     
         9 . The fire-blocking bead element of  claim 1 , wherein the gasket element is a bubble gasket. 
     
     
         10 . The fire-blocking bead element of  claim 9 , wherein the bubble gasket is hollow. 
     
     
         11 . The fire-blocking bead element of  claim 1 , wherein the edge of the wall board is an upper edge of the wall board, a lower edge of the wall board, or a side edge of the wall board. 
     
     
         12 . The fire-blocking bead element of  claim 1 , wherein the first leg comprises a plurality of perforations. 
     
     
         13 . The fire-blocking bead element of  claim 1 , wherein the attachment portion comprises an L-shaped offset. 
     
     
         14 . The fire-blocking bead element of  claim 1 , wherein the gap is oriented vertically, horizontally, or at an angle across the wall assembly. 
     
     
         15 . The fire-blocking bead element of  claim 1 , wherein a height of the flexible sealing leg is larger than a height of the gasket element. 
     
     
         16 . The fire-blocking bead element of  claim 1 , wherein a height of the flexible sealing leg is between 120% and 180% of a height of the gasket element. 
     
     
         17 . The fire-blocking bead element of  claim 1 , wherein the first leg further comprises a first surface and a second surface, wherein the first surface is configured to face the outward-facing surface of the wall board and the second surface is configured to face away from the outward-facing surface of the wall board, and wherein the flexible sealing leg does not extend past the second surface when in contact with the overhead structure. 
     
     
         18 . A fire-rated wall assembly comprising:
 a wall board;   an adjacent structure, the adjacent structure spaced from the wall board to form a gap;   a fire-blocking bead element, the fire-blocking bead element comprising:
 a profile structure, comprising:
 a first leg, the first leg comprising a first end and a second end opposite the first end, the second end including a terminal free edge, wherein the first leg is located along an outward-facing surface of the wall board of a wall; and 
 a second leg, the second leg comprising a first surface and a second surface opposite the first surface, wherein the second leg is coupled to the first leg to form a generally L-shaped structure in cross-section having a corner, wherein the second leg is located between an edge of the wall board and the adjacent structure; 
 
 a gasket element positioned on the first surface of the second leg and disposed within the gap, wherein the gasket element is compressible to engage with the adjacent structure to seal across the gap; and 
 a flexible sealing leg located on the second leg between the compressible gasket element and a free end of the second leg such that the flexible sealing leg is located between the compressible gasket element and a header track of a wall assembly in use, wherein the flexible sealing leg is configured to contact the overhead structure; 
 a fire blocking material strip located on the second surface of the second leg and configured to expand in response to heat, wherein the fire blocking material strip comprises a first side and a second side opposite the first side, wherein the first side of the fire blocking material strip is connected to the second leg and the second side of the fire blocking material strip contacts the edge of the wall board. 
   
     
     
         19 . The fire-rated wall assembly of  claim 18 , wherein the adjacent structure is an overhead structure, a lower structure, or a side structure. 
     
     
         20 . The fire-rated wall assembly of  claim 19 , wherein the first surface of the second leg is an upper surface, a lower surface, or an outer side surface. 
     
     
         21 . The fire-rated wall assembly of  claim 20 , wherein the first end of the first leg comprises an offset from the second leg, the offset configured to receive a joint compound. 
     
     
         22 . The fire-rated wall assembly of  claim 18 , wherein the gasket element is spaced away from the corner. 
     
     
         23 . The fire-rated wall assembly of  claim 18 , wherein the gap is oriented vertically, horizontally, or at an angle across the wall assembly.