Roof flashing strip and method of production

Abstract

A roof flashing strip ( 10 ) is formed by extruding or injection molding a suitable material of either plastic or metal. The roof flashing strip ( 10 ) is formed as an elongated member ( 16 ) which then can be cut to any suitable length. The roof flashing strip ( 10 ) includes a backing plate ( 14 ) having a plurality of legs ( 18, 18′, 18 ″) projecting laterally outwardly therefrom and normal thereto. The legs ( 18 ) are inclined with respect to a horizontal plane ( 17 ) and vertically axially displaced such that there is a gap ( 24 ) therebetween, with portions of adjacent legs overlying and/or underlying one another. The gap enables the emplacement of a shingle ( 30 ) thereinto.

1 . A roof flashing strip comprising: 
 an elongated member having a backing plate and a plurality of substantially parallel legs projecting laterally outwardly therefrom,    the legs being inclined with respect to a horizontal plane at an angle θ of at least one degree.    
   
   
       2 . The roof flashing strip of  claim 1  wherein the angle θ ranges from about one degree to about five degrees.  
   
   
       3 . The roof flashing strip of  claim 1  wherein each of the laterally outwardly projecting legs has a portion thereof overlying an adjacent leg.  
   
   
       4 . The roof flashing strip of  claim 1  wherein at least some of the plurality of legs have a first portion overlying an adjacent one of the legs and an opposite second portion underlying an adjacent one of the legs.  
   
   
       5 . The roof flashing strip of  claim 4  wherein a gap is defined between the overlying portions of the legs.  
   
   
       6 . A method of manufacturing a roof flashing strip which comprises: 
 extruding the roof flashing strip of  claim 5 .    
   
   
       7 . The method of  claim 6  wherein the roof flashing strip is formed from a plastic material or a metal material.  
   
   
       8 . The method of  claim 6  wherein the roof flashing strip is formed from a plastic material selected from a group consisting of polyvinylchloride, high density polyethylene, polyurethane, and polyvinylacetate.  
   
   
       9 . The method of  claim 6  wherein the roof flashing strip is formed from aluminum.  
   
   
       10 . A method for manufacturing a roof flashing strip which comprises: 
 injection molding a suitable plastic material into a flashing strip, the flashing strip comprising the strip of  claim 5 .    
   
   
       11 . The method of  claim 10  wherein the plastic material is selected from the group consisting of polyvinylchloride, high density polyethylene, polyvinylacetate and polyurethane.