Patent ID: 6173546
Filing Date: 2001-01-16
Classification: E04D

Abstract:
A shingle for connecting with an adjacent shingle on a roof, said shingle comprising:a main body having a top, bottom, left and right peripheral edges and a front and a back surface;said top edge defining a flange bent over said front surface;said bottom edge defining a flange bent over said back surface;said right edge having an interlocking flange, said interlocking flange including a first section bending away from the front surface, a second section bending outwardly from said first section and extending parallel to the main body, a third section bending back under and adjacent to the second section, and a fourth section bent in a U-shape to extend laterally outwardly from the main body and spaced away from the third section, said fourth section defining a receiving channel for receiving the left edge of the adjacent shingle, said fourth section flatly laying in a same plane with said front surface; andwherein when the adjacent shingle engages said right edge, the layers of the shingles along the engagement form continuous contacting layers resting on the roof to resist crushing.