| 主权项 |
1. In a method for forming a continuous rainwater barrier along at least one edge portion of a building roof, the improvement comprising:
selecting an elongate strip of formable material having a length sufficient to construct a plurality of drip edge sections therefrom; forming a plurality of substantially identical through windows in the strip; after said window forming step, roll forming a top flange in the strip that is normally oriented generally horizontally and has a forward edge area; after said window forming step, roll forming a front flange in the strip with an inverted generally L-shaped configuration having a lower leg normally oriented generally vertically and having an upper edge area, and an upper leg having a forward edge area; after said window forming step, bending the forward edge area of the top flange portion relative to the forward edge area of the upper leg to define a folded-over tapered nose portion which projects generally horizontally outwardly from the lower leg and extends longitudinally along the drip edge section to deflect rainwater outwardly and downwardly away from an associated building; and after said window forming step, said top flange forming step and said front flange forming step, cutting laterally through the formed strip at locations generally coincident with center portions of the windows to form a plurality of completed drip edge sections, each with a pair of longitudinally opening notches in and completely through the opposite ends thereof which extend a predetermined distance through the upper edge area of the lower leg, the forward edge area of the upper leg and the forward edge area of the top flange portion, and define generally flat end tab areas of the top flange that are shaped for insertion into the folded-over nose portion of a next adjacent one of the drip edge sections. |
