Patent ID: 7805889
Filing Date: 2010-10-05
Classification: E04D

Abstract:
1. A flow controller for controlling flow of water from a roof valley into guttering that is mounted at the front edge of a roof, the flow controller comprising: a generally rectangular, generally planar piece of stock material defining a top portion of the flow controller, the top portion having: two longitudinally extending side edges and a longitudinal axis therebetween, a back end edge and a front end edge, a top surface and a bottom surface, and an area of the top portion that is perforated with a plurality of open holes for allowing rainwater therethrough; two sidewalls extending downward from the bottom surface of the top portion and comprising: a first sidewall extending downward along a portion of a first of the two side edges of the flow controller; and a second sidewall extending downward along a portion of a second of the two side edges of the flow controller; a lateral curve in the top portion wherein the top surface is depressed along the longitudinal axis to make it lower than the side edges; and a front wall that extends downward from the bottom surface of the top portion along the front end edge; wherein: the sidewalls decrease in height back from the front end edge to zero height where there is no sidewall near the back end edge; thereby adapting the flow controller for securing substantially the entire back end edge in direct contact with the roof.