Roof flashing strip and method of production

Abstract

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

1 . A roof flashing system comprising:
 a plurality of roof flashing strips, each roof flashing strip having a first end and an opposed second end and being formed from an elongated member having a backing plate and a succession 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 and each leg having opposed first and second edge portions, such that the succession of legs are positioned so that the first edge of a first leg overlaps the second edge of a second leg, and the first edge of the second leg overlaps the second edge of a third leg, the plurality of roof flashing strips being arranged end-to-end such that the second end of a first roof flashing strip overlying the first end of a second roof flashing strip, and the backing plate of the first and second roof flashing strips are adjacent each other; and   at least one mating clip for securing at least two juxtaposed backing plates together, the at least one mating clip being generally U-shaped and having a pair of opposed walls which connect at a union, one of the mating clips being positioned over each pair of juxtaposed backing plates such that the opposed walls of each of the mating clips are frictionally-fit over the juxtaposed backing plates, such that the adjacent roof flashing strips are secured in position with respect to each other.   
   
   
       2 . The roof flashing system of  claim 1  wherein the angle θ ranges from about one degree to about five degrees. 
   
   
       3 . The roof flashing system of  claim 1  wherein each of the backing plates has a spacer tab secured thereon, the spacer tab determining the amount of overlap between adjacent roof flashing strips. 
   
   
       4 . The roof flashing system of  claim 1  wherein the plurality of roof flashing strips and the at least one mating clip are rubber flashing strips and a rubber mating clip. 
   
   
       5 . The roof flashing system of  claim 1  wherein a gap is defined between the overlying portions of the legs such that a shingle may be disposed therebetween.