Inventors:
Allan R. LaRoche - Lewiston ME
Robert A. Butcher - Turner Center ME
Denis M. Kelleher - Denver CO
Marcel L. M. Corriveau - Lewiston ME
Jean A. Dubuc - Lewiston ME
Assignee:
Manville Corporation - Denver CO
International Classification:
E04D 1304, E04B 168
Abstract:
A flexible drainage gutter for use under a horizontal surface having moisture accumulation or leaks under cracks or expansion joints. A flexible, waterproof membrane is attached along its elongated edges to rigid flanges which can be attached to the horizontal surface itself or to support members attached to the surface. The width of the membrane can vary so that the membrane hangs down from the flanges a greater distance downstream than upstream, thereby providing for the slope of the gutter. Alternatively, the wall portions of the flanges, to which the edges of the membrane are attached, can vary in width while maintaining the width of the membrane constant to provide for the slope of the gutter.