Vapor barrier and cavity seal

Abstract

A vapor barrier and cavity seal includes a head attached to a body. The seal closes a cavity between an interior framed wall and an exterior wall or veneer of a building. The head includes a rounded surface opposite the body and has a width that is greater than the width of the cavity and is disposed to bridge across the entire cavity. The body is square or rectangular in shape to easily fit between the interior and exterior walls within the cavity. The seal may include a foam polyethylene or is formed from a closed cell, soft, flexible non-gassing rod of material that is easily extruded. It may be provided in various dimensions and densities depending on the cavity or expansion joint size required or needed to be filled. Typically, the seal may be used on door and/or window jambs where a 1″ or 2″ gap is required between a brick veneer and framing when a vapor barrier is specified in construction specifications.

1 . A vapor barrier and cavity seal having a t-shape in profile and providing a redundant seal in a cavity having a width and defined by an interior and exterior wall of a building, said vapor barrier and cavity seal comprising: 
 a head portion having a first width and bridging said cavity; and,    a body portion connected to said first portion and having a second width that is less than the first width and being disposed within said cavity.    
   
   
       2 . The vapor barrier and cavity seal of  claim 1  further including an arcuate surface provided opposite the second portion.  
   
   
       3 . The vapor barrier and cavity seal of  claim 1  further including an extruded material of foam polyethylene.  
   
   
       4 . The vapor barrier and cavity seal of  claim 1  comprising a closed cell, soft, flexible non-gassing rod of material.  
   
   
       5 . The vapor barrier and cavity seal of  claim 1  wherein said cavity is formed between a brick veneer and framing.  
   
   
       6 . The vapor barrier and cavity seal of  claim 1  wherein said interior wall comprises concrete blocks.  
   
   
       7 . The vapor barrier and cavity seal of  claim 1  wherein said exterior wall comprises brick.  
   
   
       8 . A vapor barrier and cavity seal that seals a cavity defined by a distance between an interior and exterior wall of a building, said seal comprising: 
 a rounded upper surface having edges extended across the interior and exterior walls;    a lower portion attached to the rounded upper surface and having parallel edges and a bottom, said lower portion having a width that equals the distance between the interior and exterior walls.    
   
   
       9 . The vapor barrier and cavity seal of  claim 8  further including an extruded material of foam polyethylene.  
   
   
       10 . The vapor barrier and cavity seal of  claim 8  comprising a closed cell, soft, flexible non-gassing rod of material.  
   
   
       11 . The vapor barrier and cavity seal of  claim 8  wherein said cavity is formed between a brick veneer and framing.  
   
   
       12 . A vapor barrier and cavity seal that seals a cavity having a width and being defined by two parallel walls, said vapor barrier and cavity seal comprising: 
 a head portion including an arcuate surface and spanning the entire width across the cavity;    a body portion connected to said head portion and having a width that is substantially equal to the width of the cavity, said body portion being disposed between the parallel walls; and,    wherein said vapor barrier comprises an extruded material.    
   
   
       13 . The vapor barrier and cavity seal of  claim 12  wherein a width of said head is greater than the width of the body and cavity.  
   
   
       14 . The vapor barrier and cavity seal of  claim 12  further including an extruded material of foam polyethylene.  
   
   
       15 . The vapor barrier and cavity seal of  claim 12  comprising a closed cell, soft, flexible non-gassing rod of material.  
   
   
       16 . The vapor barrier and cavity seal of  claim 12  wherein said cavity is formed between a brick veneer and framing.  
   
   
       17 . The vapor barrier and cavity seal of  claim 12  wherein said cavity is formed above a jamb and between a brick veneer and a concrete block.