Patent ID: 6418692
Filing Date: 2002-07-16
Classification: E04D,Y10S

Abstract:
A hip, ridge, or rake shingle comprising:a shingle panel having a substantially planar lower surface and an upper surface; and at least one rigid back member having a length substantially the same as or greater than the length of said shingle panel and attached to said substantially planar lower surface of said shingle panel, said at least one rigid back member having a step in thickness in a cross-sectional plane perpendicular to said substantially planar lower surface and parallel to the longitudinal axis of said at least one rigid back member, the thickness of said at least one rigid back member at the high level of said step being greater than the thickness of said at least one rigid back member at an end of said at least one rigid back member, wherein said at least one rigid back member includes a trapezoid-shaped base and a plurality of walls extending from said base, said walls having a step in height in a cross-sectional plane perpendicular to said base and parallel to the longitudinal axis of said at least one rigid back member, said step in height of said walls providing said step in thickness of said at least one rigid back member.