extending the length of gutter 14 main central portion 38 has a first side 40 approximate back wall 16 and a second side generally designated by reference numeral 42 approximate front wall 20 central planer portion 38 is provided with a plurality of apertures 43 which as may seen extend in diagonal rows in an angle of 45 degrees with respect to the length of gutter guard 36 at first side 40 gutter guard 36 has an inner vertical wall 44 and an outer vertical 48 connected by a bight 46 in turn at the lower of outer vertical wall 48 there is provided an inturned flange 50 at the second side 42 of gutter guard 36 there is provided a vertical overflow wall 52 which is designed to prevent overflow during periods of heavy rain vertical overflow wall 52 terminates in a bight 54 which connects with an horizontal segment 56 in turn horizontal section 56 continues on through bight 60 and terminates in an inturned flange 58 screws 62 are used to secure both the gutter 14 and gutter guard 36 to supporting structure 12 thus it may seen in fig3 a screw 62 will extend through both inner vertical wall 44 and outer vertical.