Abstract: A gutter guard comprises an elongate, perforated planar portion having a first longitudinal edge, a second longitudinal edge, and a plurality of apertures extending therethrough. A flange extends along the first longitudinal edge of the perforated planar portion. A sealing member extends along the first longitudinal edge of the perforated planar portion. The sealing member is angularly spaced-apart from the flange. A pair of spaced-apart side walls extend along the second longitudinal edge of the perforated planar portion. The side walls define a channel therebetween. A lip extends along a free edge of one of the side walls.